ML16013A052

302 as Given RO Written Exam with References and Answer Key

ML16013A052
Person / Time
Site:	Oconee
Issue date:	01/13/2016
From:	NRC/RGN-II
To:	Duke Energy Carolinas
References
50-269/15-302, 50-270/15-302, 50-287/15-302
Download: ML16013A052 (79)

Text

Oconee Nuclear Station Question: I 1LT48 ON$RONRCExarnination (1 point)

Which ONE of the following combinations of statalarms, if actuated, would result in illumination of the Trip Confirm Lamp on the Diamond?

A. ISA-IIE-2 (CRD BKRATRIP)

ISA-i IE-4 (CRD BKR C TRIP)

B. ISA-IIE-2 (CRD BKRATRIP)

ISA-I/E-5 (CRD BKR D TRIP)

C. ISA-IIE-2 (CRD BKRATRIP)

ISA-IIE-6 (CRD ELECTRONIC TRIP E)

D. JSA-1/E-3 (CRD BKR B TRIP)

ISA-IIE-7 (CRD ELECTRONIC TRIP F)

Page 1 of 75

Oconee Nuclear Station Question:

2 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• IRC-66failsOPEN

1) The initial Reactor Protective System trip function setpoint reached will be RCS

_(1)_ pressure.

2) Following the Reactor trip, with actual SG Outlet pressure = 985 psig, the Turbine Bypass valves will be _(2)_.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. Low

2. throttled open B. 1. Variable Low

2. throttled open C. 1. Low

2. closed D. I. Variable Low

2. closed Page 2 of 75

Oconee Nuclear Station Question: 3 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1700

• Reactortrip from 100%

Time = 1705

• All SCMs = 0°F stable

• HPI header A flow = 578 gpm stable

• IA and lB HPI pumps operating

• IC HPI pump breaker failed open

1) The valve that must be opened in accordance with Rule 2 (Loss of SCM) is

_t1 )_.

2) In accordance with Rule 6 (HPI), once the above valve is opened, the MAXIMUM tot HPI flow is _(2)_ gpm.

Which ONE of the following completes the statements above?

A. I. IHP-409

2. 750 B. I. IHP-409

2. 950 C. I. IHP-410

2. 750 D. 1. IHP-410

2. 950 Page 3 of 75

Oconee Nuclear Station Question:

• 4 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit I conditions:

Time = 1200

• Power escalation in progress

• Reactor power = 38% slowly increasing

• A Switchyard Isolation occurs Time = 1215

• RCS pressure = 2125 psig

• Pressurizer temperature = 640.0°F

• Pressurizer level is stable

• All Pressurizer heaters are energized

1) At Time = 1200, an AUTOMATIC Reactor trip _(1)_ occur.

2) At Time = 1215, the pressurizer is _(2)_.

Which ONE of the following completes the statements above?

A. 1. will

2. saturated B. 1. will

2. subcooled C. 1. will NOT

2. saturated D. 1. will NOT

2. subcooled Page 4 of 75

Oconee Nuclear Station Question:

• 5 1LT48 ON$RONRCExamination (1 point)

Given the following Unit 2 conditions:

Initial conditions:

• Reactor power = 78% stable Current conditions:

• 2A2 Reactor Coolant Pump trips

1) Controlling Tave signal will AUTOMATICALLY switch to Loop _(1 )_ Tave.

2) The reason that the Controlling Tave signal is switched is due to _(2)_.

Which ONE of the following completes the statements above?

A. l.A

2. RCP 2A2 breaker position B. l.B

2. RCP 2A2 breaker position C. l.A

2. Loop RCS flow indication D. 1.B

2. Loop RCS flow indication PageS of 75

Oconee Nuclear Station Question:

• 6 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit 1 conditions:

• Reactor power = 100%

• All HPI pumps fail

• AP/14 (Loss of Normal HPI Makeup and/or RCP Seal Injection) initiated

1) Reactor Coolant Pump thermal barrier cooling will initially be provided by _(1)_.

2) The reason thermal barrier cooling is provided is to prevent seal damage due to

_(2)_.

Which ONE of the following completes the statements above?

A. 1. Component Cooling

2. excessive temperature B. 1. Component Cooling

2. flashing across the lower seal C. 1. Low Pressure Service Water

2. excessive temperature D. 1. LowPressure Service Water

2. flashing across the lower seal Page 6 of 75

Oconee Nuclear Station Question:

• 7 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

Time = 1200

• LPI aligned in the Normal Decay Heat Removal mode

• IA LPI pump operating Time= 1201

• Loss of offsite power results in Switchyard Isolation Time = 1202

• Power restored via CT-4

1) Assuming NO operator actions, at Time = 1205 _f1)_ LPI pump(s) will be operating.

2) If NEITHER the IA NOR the lB LPI pumps were available at Time = 1202, manual reset of Load Shed is _(2)_ prior to starting the IC LPI pump.

Which ONE of the following completes the statements above?

A. I. the IA

2. required B. 1. thelA

2. NOT required C. 1.NO

2. required D. 1.NO

2. NOT required Page 7 of 75

Oconee Nuclear Station Question:

• 8 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 1200

• RCS temperature = 450°F

• Various Breakers supplying Pzr heaters trip OPEN

• F1N24 reports 420 KW of Pressurizer heater capacity remain available Time = 1400

• RCS temperature = 335°F stable

1) At Time = 1200, LCO 3.4.9 (Pressurizer) requirements _(1)_ met.

2) At Time = 1400, the requirements of Tech Spec 3.4.9 _(2)_ apply.

Which ONE of the following completes the statements above?

A. 1. are

2. do NOT B. 1. are

2. do C. 1. are NOT

2. do NOT D. 1. are NOT

2. do Page 8 of 75

Oconee Nuclear Station Question:

• 9 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• JA HPI pump operating

• I HP-27 closed Current conditions:

• Both Main FDW pumps trip

• Reactor power 52% decreasing

• Rule I (ATWS/Unanticipated Nuclear Power Production) in progress

1) In accordance with Rule 1, lB HPI pump will be started if 1HP-27wi11 NOT open in order to _(1 )_.

2) When all other requirements are met in Rule 6 (HPI), CRS concurrence _(2)_ be required to throttle HPI.

Which ONE of the following completes the statements above?

A. 1. madmize flow in IAHPI header

2. will B. 1. utilize the HPI Cross-over header

2. will C. 1. madmize flow in IAHPI header

2. will NOT D. 1. utilize the HPI Cross-over header

2. will NOT Page 9 of 75

Oconee Nuclear Station Question:

• 10 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

• Steam Generator Tube Rupture in lB SG

• Tcold = 490°F slowly decreasing

• RB pressure = 3.1 psig slowly decreasing

• RB temperature = 203°F slowly decreasing

• I B SG pressure = 606 psig slowly decreasing

• I B SC Full Range level = 54% slowly increasing

1) 1 B SC level _(1)_ reached the level at which water can enter the Main Steam lines.

2) Assuming lB SC has reached the level of water in the Main Steam line and steaming has been discontinued, the next procedural step per the SGTR tab is to

_(2)_.

Which ONE of the following completes the statements above?

REFERENCE PROVIDED A. I. has

2. verify the IA SG is available for steaming B. I. has NOT

2. verify the IA SC is available for steaming C. I. has

2. align SC blowdown to the I B SC to lower level D. I. has NOT

2. align SC blowdown to the I B SC to lower level Page 10 of 75

Oconee Nuclear Station Question: 11 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit 2 conditions:

• Loss of Heat Transfer has occurred

• Unit 2 TDEFWP is now available to feed the Steam Generators

• 2A SG level = 8 inches XSUR slowly decreasing

• 2A SG pressure = 412 psig slowly decreasing

• 2B SG level = 5 inches XSUR slowly decreasing

• 2B SG pressure = 385 psig slowly decreasing In accordance with Rule 7 (Steam Generator Feed Control), the MAXIMUM initial feed rate allowed to EACH Steam Generator is limited to _(1)_ gpm in order to prevent

_(2)_ to the Steam Generator tubes.

Which ONE of the following completes the statement above?

A. 1.50

2. excessive thermal stresses B. 1.50

2. flow induced vibration damage C. 1.100

2. excessive thermal stresses D. 1. 100

2. flow induced vibration damage Page 11 of75

Oconee Nuclear Station Question:

• 12 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• ACB-4 closed

• A Switchyard Isolation occurs Current conditions:

• Keowee Unit 2 Emergency lockout

• 230 Ky Yellow Bus Differential lockout Main Feeder buses will be energized _(1)_ from _(2)_.

Which ONE of the following completes the statement above?

A. 1. manually

2. CT-4 B. 1. automatically

2. CT-4 C. 1. manually

2. CT-5 D. 1. automatically

2. CT-5 Page 12 of 75

Oconee Nuclear Station Question:

• 13 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

• Station Blackout has occurred Concerning the TDEFWP.

I) Oil cooling water will be supplied by _(1)_.

2) A caution in the EOP BC tab states that reducing steam pressure below approximately _(2)_ psig can result in reduced TDEFDWP pumping capability.

Which ONE of the following completes the statements above?

A. 1. HPSW

2. 250 B. 1. HPSW

2. 300 C. I. LPSW

2. 250 D. I. LPSW

2. 300 Page 13 of 75

Oconee Nuclear Station Question: 14 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

lnftial conditions:

• Reactor power = 100%

• SASS in Manual while FlN24 repairs Pressurizer Level 3 transmitter

• 1 HP-I 20 in AUTO selected to Pressurizer Level I Current conditions:

• Vital power to 10CM Train A fails Which ONE of the following describes Pressurizer level control with IHP-120?

A. Selecting Pressurizer Level 2 and depressing the AUTO pushbutton on IHP-120 are required to restore automatic control at setpoint B. Manual control using IHP-I20 Bailey controller is all that is available C. Selecting Pressurizer Level 2 ONLY will restore automatic control at setpoint D. Additional actions are NOT required since Automatic control at setpoint is retained Page 14 of 75

Oconee Nuclear Station Question:

• 15 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

lime = 0800:

• Reactor power = 100%

• Instrument Air pressure decreasing

• AP122 (Loss of Instrument Air) initiated Time = 0810:

• I B Main Steam Line Break in containment

• Reactor Building pressure 3.2 psig slowly increasing

• Instrument Air and Auxiliary Instrument Air pressure lost At lime = 0810...

1) Rule 7 (SG Feed Control) requires IASG to be controlled at_(1)_ inches XSUR level.

2) 1 FDW-31 5 _(2)_ be operated from the Control Room.

Which ONE of the following completes the statements above?

A. 1.30

2. can B. 1.30

2. can NOT C. 1.60

2. can D. 1.60

2. can NOT Page 15 of 75

Oconee Nuclear Station Question:

• 16 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit I conditions:

• Reactor power = 55% stable

• AP/34 (Generator Grid Disturbance) in progress

• Generator Output = 850 MWe and (+) 450 MVARs

• Generator Hydrogen Pressure = 60 psig

• Generator Frequency = 57.0 Hz

1) In accordance with AP/34, the Generator output _(1) within the limits of the Generator Capability Curve.

2) Manually tripping the Main Turbine_(2)_ required.

Which ONE of the following completes the statements above?

REFERENCE PROVIDED A. 1. is

2. is B. I. is NOT

2. is C. I. is

2. is NOT D. I. is NOT

2. is NOT Page 16 of 75

Oconee Nuclear Station Question:

• 17 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Loss of Heat Transfer exists due to the loss of ALL FDW sources

• HPI Forced Cooling in progress

• RCS pressure = 2210 psig slowly decreasing

• Pzr Level = 380 inches increasing

• Core SCM = 56°F increasing In accordance with Rule 6 (HPI), HPI flow _(1 )_ be throttled because _(2)_.

Which ONE of the following completes the statement above?

A. 1. may NOT

2. CETCs are increasing B. I. may NOT

2. RCS pressure is decreasing C. 1. may

2. CETCs are decreasing D. 1. may

2. Pzr Level is increasing Page 17 of 75

Oconee Nuclear Station Question: 18 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• 1A Main Steam Line Break occurs Current conditions:

• Reactor has tripped

• RCS Tave = 544°F slowly increasing

• 1A SG pressure = 0 psig

• lB SG pressure = 990 psig slowly increasing

1) The Turbine Driven Emergency Feedwater Pump (TDEFDWP) is _(1)_.

2) The TDEFDWP can be _(2)_ AFIS is reset.

Which ONE of the following completes the statements above?

A. 1. operating

2. secured ONLY after B. 1. operating

2. secured before C. 1. NOT operating

2. started ONLYafter D. 1. NOT operating

2. started before Page 18 of 75

Oconee Nuclear Station Question:

• 19 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 75% stable

• Instrument failure results in rod withdrawal

• ICS is taken to hand during Plant Transient Response (PTR)

In accordance with OMP 1-18 (Implementation Standard During Abnormal and Emergency Events)...

1) In order to declare the plant stable, _(1 )_ power must be less than or equal to the pre-transient level.

2) When inserting control rods during PTR, the criteria to stop the initial control rod insertion is when RCS pressure and Tave _(2)_.

Which ONE of the following completes the statements above?

A. 1.NI

2. stop increasing B. 1.NI

2. return to the pre-transient values C. 1. CoreThermal

2. stop increasing D. 1. Core Thermal

2. return to the pre-transient values Page 19 of 75

Oconee Nuclear Station Question:

• 20 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 68% increasing Current conditions:

• Control Rod group 6 rod 6 = 0% withdrawn I) An ICS Asymmetric Rod Runback will reduce power to _(1)_.

2) When an ICS Asymmetric Rod Runback is in progress, depressing the HOLD pushbutton on the LCP _(2)_ stop the runback.

Which ONE of the following completes the statements above?

A. 1. 55%

2. will B. 1. 55%

2. will NOT C. 1. 60%

2. will D. I. 60%

2. will NOT Page 20 of 75

Oconee Nuclear Station Question:

• 21 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit I conditions:

Time = 1200

• Reactor shutdown in progress

• Reactor power = 58% decreasing

• Control Rod Group 7 Rod 3 mechanically bound Time = 1215

• ISA-2/B-1O (CRD Asymmetric Rod Position Error) actuates

• Power decrease stopped

• Reactor power = 50% stable Time = 1415

• Reactor power = 50% stable

1) At Time = 1415, Control Rod Group 7 Rod 3 _(1)_ be closer to the Group 7 average position.

2)11 a Reactor trip occurs, Group 7 in limit _(2)_ be indicated.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. will

2. will B. 1. will NOT

2. will C. 1. will

2. will NOT D. 1. will NOT

2. will NOT Page 21 of 75

Oconee Nuclear Station Question:

• 22 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• Pressurizer level = 210 inches slowly decreasing

• IHP-120 (RC VOLUME CONTROL) failed CLOSED

• AP/14 (Loss of Normal HPI Makeup and/or RCP Seal Injection) initiated In accordance with AP/14...

1) RCS makeup is initially provided by throttling _(1)_.

2) Pressurizer level is maintained ata MINIMUM of _(2)_ inches.

Which ONE of the following completes the statements above?

A. 1. IHP-26

2. 80 B. 1. IHP-26

2. 200 C. 1. IHP-122 (RC VOLUME CONTROL BYPASS)

2. 80 D. 1. IHP-122 (RC VOLUME CONTROL BYPASS)

2. 200 Page 22 of 75

Oconee Nuclear Station Question:

• 23 1LT48 ON$RONRCExamination (1 point)

Given the foflowing Unit I conditions:

• SGTRintheIASG

• SGTR tab in progress

• RCS temperature = 540° F decreasing

• 1TA and ITB are de-energized In accordance with the SGTR tab...

1) Core SCM is decreased during cooldown to _(I)_.

2) The method that will be used to reduce SCM is cycling _(2)_.

Which ONE of the following completes the statements above?

A. 1. minimize tensile stress on the IA SG

2. the PORV B. I. minimize tensile stress on the IA SG

2. Pzr spray C. I. reduce the primary to secondary leak rate

2. the PORV D. I. reduce the primary to secondary leak rate

2. Pzr spray Page 23 of 75

Oconee Nuclear Station Question:

• 24 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• AP/31 (Primary to Secondary Leakage) in progress

1) As a result of Primary to Secondary leakage, the Unit 1/2 Turbine Building Sump pump breakers are opened _(1)_.

2) A sustained loss of power to I RIA-54 will trip BOTH Turbine Building Sump Pumps

_(2)_.

Which ONE of the following completes the statements above?

A. I. ONLY when 1RIA-54 is in alarm or inoperable

2. after a 2 minute timer B. 1. ONLY when 1 RIA-54 is in alarm or inoperable

2. immediately C. 1. ANYTIME AP/31 (Primary to Secondary Leakage) has been initiated

2. after a 2 minute timer D. 1. ANYTIME AP/31 (Primary to Secondary Leakage) has been initiated

2. immediately Page 24 of 75

Oconee Nuclear Station Question:

• 25 IL T48 ONS R0 NRC Exantination (1 point)

Given the following plant conditions:

• B GWD Tank rupture occurs

• JRIA-32 fAux Bldg Gas) in HIGH alarm

• IRIA-39 (Cntl Rm Gas) in HIGH alarm

• Unit I AP/18 (Abnormal Release of Radioactivity) has been entered I) APII8 directs starting _(1)_Outside Air Booster Fan(s).

2) The Outside Air Booster Fan(s) _(2)_ utiHze Unit 2 Main Purge Filters.

Which ONE of the following completes the statements above?

A. I. ONLY one

2. will B. I.two

2. will C. I. ONLY one

2. will NOT D. I.two

2. will NOT Page 25 of 75

Oconee Nuclear Station Question:

• 26 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0800:

• Reactor power = 25%

• IA Main Feedwater Pump is operating

• I SA-2/B-1 I (ICS AUTO POWER FAILURE) actuated

• AP/23 (Loss of ICS Power) initiated Time = 0805:

• Reactor trips AP/23 (Loss of ICS Power)...

1) _(1)_ require manual tripping of the IA Main Feedwater Pump.

2) directs using _(2)_ to control decay heat removal.

Which ONE of the following completes the statements above?

A. 1. does NOT

2. ADVs B. I. does

2. ADVs C. 1. does NOT

2. TBVs D. 1. does

2. TBVs Page 26 of 75

Oconee Nuclear Station Question: 27 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0800

• Reactor trip

• SBLOCA

• ES 1-6 actuate

• CT-I Lockout

1) 60 seconds later, Main FDW Pumps _(I )_ AUTOMATICALLY tripped.

2) In accordance with Rule 2 (Loss of SCM), an initial EFDW flow rate of ...(2)_ gpm per SG is established to remove decay heat.

Which ONE of the following completes the statements above?

A. 1. have

2. 300 B. 1. have NOT

2. 300 C. 1. have

2. 450 D. 1. have NOT

2. 450 Page 27 of 75

Oconee Nuclear Station Question: 28 IL T48 ONS RD NRC Examination (1 point)

Unit I plant conditions:

lime = 0800: MFBMP Circuitry Actuated Time = 0802: Power is restored to the MFBs I) The normal power supply to the IA CC pump is _(I)_.

2) CC pumps with their control switches in AUTO will start _(2)_after power is restored.

Which ONE of the following completes the statements above?

A. 1. IXL

2. immediately B. I. IXL

2. 20 seconds C. I. 1XSI

2. immediately D. I. IXSI

2. 20 seconds Page 28 of 75

Oconee Nuclear Station Question:

• 29 1LT48 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Time = 0800

• Reactor power = 100%

• MSLB inside containment occurs

• RCS pressure = 1575 psig Time = 0805

• RCS pressure = 1800 psig increasing

• The SOP is performing End 5.1 (ES Actuation)

1) At Time = 0800, Diverse HPI _(1 )_ AUTOMATICALLY actuated.

2) ES Channels I & 2 MANUAL Pushbuttons _(2)_ have to be depressed prior to throttling HPI.

Which ONE of the following completes the statements above?

A. 1. has

2. do B. 1. has

2. do NOT C. 1. has NOT

2. do D. 1. has NOT

2. do NOT Page 29 of 75

Oconee Nuclear Station Question:

• 30 1LT48 ON$RONRCExamination (1 point)

Given the following Unit 3 conditions:

• Reactor power = 100%

• 3A Purification IX in service

• Letdown temperature increases by 5°F

1) With no operator actions, the RCS boron concentration over the next several hours will _(1) due to the letdown temperature increase.

2) With control rods responding, assuming no other operator actions, taking ONLY the ICS Reactor Bailey station to HAND _(2)_ stop the rod motion.

Which ONE of the following completes the statements above?

A. 1. increase

2. will B. 1. increase

2. will NOT C. 1. decrease

2. will D. 1. decrease

2. will NOT Page 30 of 75

Oconee Nuclear Station Question:

• 31 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• ITE bus lockout occurs Which ONE of the following contains ONLY pumps that are jiji being powered from 4160V switchgear?

A. IBHPIP, IBLPIP B. IBHPIP, ICLPIP C. IC HPIP, lB LPIP D. IC HPIP, IC LPIP Page 31 of 75

Oconee Nuclear Station Question:

• 32 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0400

• Reactor power = 100%

Time = 0405

• RCS pressure = 550 psig decreasing Time = 0445

• RCS pressure = 200 psig decreasing Time = 0450

• RCS pressure = 100 psig decreasing

• 1LP-17 is failed CLOSED

1) In accordance with OMP 1-l8AttachmentA(Licensed Operator Memory Items), the LATEST time the LPI pumps are required to be secured is _(1)_.

2) At Time = 0450, LPI flow _(2)_ entering the core through BOTH LPI injection nozzles.

Which ONE of the following completes the statements above?

A. 1. 0425

2. is NOT B. 1. 0425

2. is C. 1. 0435

2. is NOT D. 1. 0435

2. is Page 32 of 75

Oconee Nuclear Station Question:

• 33 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit 2 conditions:

• Reactor power = 100%

• Quench Tank is being pumped to 2A BHUT using the Quench Tank Pump AND the Component Drain Pump

1) 0P121N11041017 (Quench Tank Operations) requires Quench Tank Level to be maintained at a MAXIMUM of _(J)_ inches.

2) If ES I and 2 actuate, this flow path _(2) automatically isolate.

Which ONE of the following completes the statements above?

A. 1.90

2. will B. 1.90

2. will NOT C. 1. 100

2. will D. 1. 100

2. will NOT Page 33 of 75

Oconee Nuclear Station Question:

• 34 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

Time 0400:

• Reactor power = 100%

• Component Cooling Return Flow = 563 gpm decreasing

• 1SA-09/C-1 (Component Cooling Retum Flow Low) actuates Time = 0402:

• Component Cooling Return Flow = 103 gpm decreasing

• The Standby CC pump has NOT started

• CC Surge Tank level = 18 inches stable

1) At Time =0400, Statalarm ISA-09/C-1 _(1)_ valid.

2) At Time = 0402, 1 SA-09/C-1 ARG _(2)_ direct manually starting the Standby CC pump.

Which ONE of the following completes the statements above?

A. 1. is

2. will B. 1. is

2. will NOT C. 1. is NOT

2. will D. 1. is NOT

2. will NOT Page 34 of 75

Oconee Nuclear Station Question:

• 35 1LT48 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• IRC-1 failed OPEN

• RCS pressure = 2150 psig decreasing

• AP/44 (Abnormal Pressurizer Pressure Control) initiated Current conditions:

• I RC-3 failed OPEN

1) Pressurizer heaters _(1)_ be able to maintain RCS pressure above the RPS trip setpoint.

2) AP144 will initially direct stopping the _(2)_ to help mitigate the failure.

Which ONE of the following completes the statements above?

A. 1. will

2. IAI RCP ONLY B. 1. will

2. IAI and 1A2 RCPs C. 1. will NOT

2. IAI RCP ONLY D. 1. will NOT

2. IAI and 1A2 RCPs Page 35 of 75

Oconee Nuclear Station Question: 36 IL T48 ONS R0 NRC Examination (1 point)

The DNBR Safety Limit is applicable in MODE(s) _(1)_.

The _(2)_ RPS trip is designated to prevent exceeding the DNBR AND the fuel center line melt Safety Limit.

Which ONE of the following completes the statement above?

A. 1. one ONLY

2. High Flux B. 1. one ONLY

2. High RCS Temperature C. 1. one AND two

2. High Flux D. 1. oneANDtwo

2. High RCS Temperature Page 36 of 75

Oconee Nuclear Station Question:

• 37 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

• RCS cooldown in progress

• RCS pressure = 1730 psig slowly decreasing

1) 1 SA-7/D-6 (ES HPI Bypass Permit) _(l )_ actuated.

2) Once bypassed, HPI ES _(2)_ AUTOMATICALLY reinstate when RCS pressure is returned to normal operating pressure.

Which ONE of the following completes the statements above?

A. 1. is

2. does B. 1. is

2. does NOT C. 1. is NOT

2. does D. 1. is NOT

2. does NOT Page 37 of 75

Oconee Nuclear Station Question:

• 38 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0500:

• Reactor power = 25% stable

• IA and 1C RBCUs operating in HIGH speed

• lB RBCU is operable and OFF Time = 0501:

• A LOCA occurs

• ES channels 1-5 actuate

• ES channel 6 fails to actuate

• A LOOP occurs Time = 0505:

• Offsite power is restored to Unit I AtTime = 0506, IC RBCU is_(1)_and lB RBCU is_(2).

Which ONE of the following completes the statement above?

A. I. OFF

2. OFF B. 1. OFF

2. operating in LOW speed C. 1. operating in LOW speed

2. OFF D. 1. operating in LOW speed

2. operating in LOW speed Page 38 of 75

Oconee Nuclear Station Question: 39 1LT48 ONSRONRCExamination (1 point)

Following a Large Break LOCA, _(1)_ is added to the Reactor Building Emergency Sump to _(2)_.

Which ONE of the following completes the statement above?

A. 1. LiOH (Lithium Hydroxide)

2. aid in keeping Iodine in solution, ultimately reducing offsite dose B. 1. LiOH (Lithium Hydroxide)

2. minimize Hydrogen production from the Boric Acid reaction with Zircoloy C. 1. TSP (Trisodium Phosphate Dodecahydrate)

2. aid in keeping Iodine in solution, ultimately reducing offsite dose D. 1. TSP (Trisodium Phosphate Dodecahydrate)

2. minimize Hydrogen production from the Boric Acid reaction with Zircoloy Page 39 of 75

Oconee Nuclear Station Question: 40 1LT48 ONSRONRCExamination (1 point)

1) The actual SETPOINT for Reactor Building Spray actuation is _(1)_ psig.

2) The I BS-2 position if ES Channel 8 fails to actuate is _(2)_.

Which ONE of the following completes the statements above?

A. 1. 10

2. Closed B. 1. 10

2. Open C. 1. 15

2. Closed D. 1. 15

2. Open Page 40 of 75

Oconee Nuclear Station Question:

• 41 1LT48 ON$RONRCExarnination (1 point)

Given the following plant conditions:

Time= 1200

• Unit 2 Reactor power = 75%

• Reactor Diamond, BOTH FDW masters, and the Main and Startup FDW valves are in HAND Time= 1215

• Reactor trip occurs

1) At Time = 1200, the normal steam supply to the Unit 2 Main Feedwater Pump Turbines is _(1)_.

2) At Time = 1215, runback of Main Feedwater flow _(2)_ occur AUTOMATICALLY.

Which ONE of the following completes the statements above?

A. 1. DBleed

2. will B. 1. DBIeed

2. will NOT C. 1. Auxiliary Steam

2. will D. 1. Auxiliary Steam

2. will NOT Page 41 of 75

Oconee Nuclear Station Question: 42 1LT48 ON$RONRCExarnination (1 point)

In accordance with Limits and Precautions of 0P111N11061014 (Moisture Separator Reheater), the MAXIMUM allowed side to side delta Temperature across the Low Pressure Turbines during normal operation is _(1 )_ degrees F, and we ensure this limit is not exceeded by throttling valves controlling the steam supply to the _(2)_ as power level changes.

Which ONE of the following completes the statement above?

A. 1.50

2. First Stage Reheaters B. 1.50

2. Second Stage Reheaters C. 1. 100

2. First Stage Reheaters D. 1. 100

2. Second Stage Reheaters Page 42 of 75

Oconee Nuclear Station Question:

43 IL T48 ONS R0 NRC Exantination (1 point)

Given the following Unit I conditions:

• Reactor power = 80% stable

• Reactor Diamond and both Feedwater masters are in HAND

• Feedwater Transient occurs which results in one of the Main Feedwater Pumps tripping on High Discharge Pressure I) The Main Feedwater Pump with the LOWER Discharge Pressure trip setpoint is the

_(1)_ Main Feedwater Pump.

2) AP/1 (Unit Runback) states that you are to initiate a manual power reduction to

_(2)_% CTP.

Which ONE of the following completes the statements above?

A. I.IA

2. 65 B. I.IA

2. <74 C. I.IB

2. <65 D. lIE

2. <74 Page 43 of 75

Oconee Nuclear Station Question:

• 44 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• Two AFIS pressure transmitters on IA SG fail bIg.fi Current conditions:

• IA Main Steam Line break occurs

• IA SG pressure = 480 psig rapidly decreasing I) AFIS _(1 )_ AUTOMATICALLY actuated.

2) Rule 5 (Main Steam Line Break) requires the operator to _j2)_.

Which ONE of the following completes the statements above?

A. 1. is

2. select OFF for IA MD EFDW Pump B. I. is

2. open IAS-40 while closing I MS-47 C. 1. is NOT

2. select OFF for IA MD EFDW Pump D. 1. is NOT

2. open IAS-40 while closing IMS-47 Page 44 of 75

Oconee Nuclear Station Question:

• 45 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• Confirmed flooding of the Turbine Building is in progress

1) The EOP TBF tab _(1)_ state that AP/lO (Turbine Building Flood) is being used in parallel with this tab.

2) When performing AP/1 0, _(2)_ Feedwater is required to be used as the long term source of water to the Steam Generators.

Which ONE of the following completes the statements above?

A. 1. does

2. Emergency B. 1. does

2. Main C. 1. does NOT

2. Emergency D. 1. does NOT

2. Main Page 45 of 75

Oconee Nuclear Station Question: 46 1LT48 ONS RO NRC Examination (1 point)

1) Automatic control circuits will close the associated feeder breakers of 1X7, 2X4 &

3X4 after a load shed has occurred and a _(l)_ second timer has timed out.

2) The feeder breakers above will trip open on receipt of a MINIMUM of _(2)_.

Which ONE of the following completes the statements above?

A. 1.30

2. BOTH channel A and channel B Load Shed signals B. 1.30

2. EITHER channel A or channel B Load Shed signal C. 1.60

2. BOTH channel A and channel B Load Shed signals D. 1.60

2. EITHER channel A or channel B Load Shed signal Page 46 of 75

Oconee Nuclear Station Question:

• 47 1LT48 ONSRONRCExamination (1 point)

Given the following station conditions:

Initial conditions:

• All three units Reactor power = 100%

Current conditions:

• All Units 4160V Main Feeder Busses are de-energizec]

• Unit 1 2, and 3 EOP Blackout tabs in progress Which ONE of the following describes the required status of Llnit I Essential Inverters per EOP Enclosure 5.38 (Restoration of Power) and why?

Unit Is Essential Inverters A. remain energized to provide power to ES channels B. remain energized to provide control power to 4160V Switchgear C. are de-energized to extend the life of available batteries D. are de-energized to prevent inverter damage Page 47 of 75

Oconee Nuclear Station Question: 48 1LT48 ON$RONRCExantination (1 point)

Given the following plant conditions:

• 3CA Battery Charger fails output voltage

- = 0 VDC

• 3CA Battery voltage = 120 VDC

• 3DCB Bus voltage = 123 VDC

• Unit I DCNDCB Bus voltage = 125 VDC

• Unit 2 DCNDCB Bus voltage = 127 VDC Which ONE of the following will automatically supply power to 3DIA panelboard?

A. 3CA Battery B. 3DCB Bus C. Unit I DC Bus D. Unit 2 DC Bus Page 48 of 75

Oconee Nuclear Station Question: 49 1LT48 ON$RONRCExarnination (1 point)

Given the following plant conditions:

Time = 1200

• All three units at 50% power

• ACB-3 is closed Time = 1245

• LOCA occurs on Unit I

• ES channels I and 2 actuate on Unit I

• CT-I lockout occurs At Time = 1250, KHU I control power is supplied by Which ONE of the following completes the statement above?

A. CX Transformer from Keowee Unit I B. IX Transformer from Keowee Unit I C. CX Transformer from Keowee Unit 2 D. IX Transformer from 230 KV Switchyard Page 49 of 75

Oconee Nuclear Station Question: 50 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1200

• Reactor power = 100%

• ACB-4 Closed

• Large Break LOCA occurs coincident with a total loss of offsite power Time = 1205

• Keowee Hydro Unit (KHU)-2 Emergency Lockout occurs At Time = 1210 the _(1)_ power path is being used to supply Unit I ECCS systems and _(2)_ LPI pumps are operating.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. Overhead

2. ALL3 B. 1. Overhead

2. ONLY 2 C. 1. Underground

2. ALL3 D. 1. Underground

2. ONLY 2 Page 50 of 75

Oconee Nuclear Station Question:

• 51 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

Time = 1200

• Unit I startup in progress

• RB Purge in progress

• RB activity levels are increasing Time = 1215

• 1 RIA-45 (Norm Vent Gas) found out of service with power available

1) AUTOMATIC termination of RB Purge operation _(1)_ close IPR-1 and IPR-6.

2) At Time = 1215, AUTOMATIC termination of RB Purge due to increasing RB activity 2)_ available.

Which ONE of the following completes the statements above?

A. 1. does

2. is B. 1. does

2. is NOT C. 1. does NOT

2. is D. 1. does NOT

2. is NOT Page 51 of 75

Oconee Nuclear Station Question:

• 52 1LT48 ON$RONRCExamination (1 point)

Given the following plant conditions:

Time = 1200

• Spent Fuel Pool level = 0.1 foot stable Time = 1215

• Spent Fuel Pool level = -3.4 feet decreasing

• IRIA-6 (Spent Fuel Pool Area Monitor) in HIGH alarm

• I RIA-41 (Spent Fuel Pool Building Gas) in HIGH alarm Time = 1216

• An AC is being dispatched to the SEP area to investigate the cause.

• The ACs dose for this year is 525 mrem

• The AC has NOT received a dose extension for this year Which ONE of the following is the MAXIMUM TEDE dose (mrem) allowed for the AC while performing the assigned task?

A. 1475 B. 4475 C. 5,000 D. 10,000 Page 52 of 75

Oconee Nuclear Station Question:

• 53 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit 3 conditions:

Time = 1200

• Reactor power = 100%

• 3A Letdown cooler tube leak rate = 0.1 gpm Time = 1230

• 3A Letdown cooler tube leak rate = 5.0 gpm

1) An increase in LPSW flow to the Component Coolers _(1 )_ required to maintain 3A Letdown Cooler Component Cooling outlet temperature constant from 1200-1230.

2) The MINIMUM RCS letdown temperature that will result in an AUTOMATIC isolation of letdown is _(2)°F.

Which ONE of the following completes the statements above?

A. 1. is

2. 130 B. 1. is

2. 135 C. 1. is NOT

2. 130 D. 1. is NOT

2. 135 Page 53 of 75

Oconee Nuclear Station Question:

• 54 IL T48 ONS RO NRC Examination (1 point)

Given the following plant conditions:

lime = 0400:

• Backup IA Compressors in STBYI

• Primary IA Compressor tripped lime = 0405:

• Instrument Air pressure = 91 psig decreasing At Time = 0405...

1) Auxiliary IA Compressors are (1)

2) Backup IA Compressors are _(2)_.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. Operating

2. OFF B. 1. OFF

2. OFF C. 1. Operating

2. Operating D. 1. OFF

2. Operating Page 54 of 75

Oconee Nuclear Station Question:

• 55 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1200

• Reactor in MODE 5

• RCS Loops dropped

• Pressurizer level = 340 inches stable

• RB Purge in progress

• Reactor Building Normal Sump is being pumped Time = 1205

• I RIA-48 (Reactor Building Iodine) in HIGH alarm

• I RIA-49 (Reactor Building Gas) in HIGH alarm

1) The Containment Evacuation alarm _(1 )_ AUTOMATICALLY actuate.

2) _(2)_ will provide guidance to complete the system isolation initiated by I RIA-49.

Which ONE of the following completes the statements above?

A. 1. will

2. OP/1/A11104/007 (LWD System)

B. 1. will

2. OP/1/NIIO2/014 (RB Purge)

C. I. will NOT

2. OP/I/NIIO4/007 (LWD System)

D. I. will NOT

2. OP/I/NIIO2/014 (RB Purge)

Page 55 of 75

Oconee Nuclear Station Question: 56 1LT48 ONSRONRCExantination (1 point)

Which ONE of the following describes ALL of the MCCs which supply power to Unit ls Control Rod Drive System?

A. 1X9 and 2X2 B. 1X9 and 2X1 C. IXI and 2X9 D. IXI and 3X9 Page 56 of 75

Oconee Nuclear Station Question:

• 57 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

• Reactor in MODE 5

• Reactor Vessel level = 80 inches stable

• Reactor Vessel Cold Leg Ultrasonic level NOT available

1) In accordance with SD 1.3.5 (Shutdown Protection Plan), reducing the reactor vessel level to 40 inches _(1 )_ allowed.

2) Improper venting of the RCS results in RCS pressure greater than Containment pressure and LT-5 readings that are _(2)_ than actual.

Which ONE of the following completes the statements above?

A. 1. is

2. greater B. 1. is

2. less C. 1. is NOT

2. greater D. 1. is NOT

2. less Page 57 of 75

Oconee Nuclear Station Question:

• 58 IL T48 ONS R0 NRC Exantin ation (1 point)

Given the following Unit I conditions:

lime = 1200

• Plant is stable following a Reactor trip

• Pressurizer (Pzr) level = 100 inches stable lime = 1230

• IHP-120 fails closed

• Pressurizer level begins decreasing at 1 inch per minute

1) Assuming no operator actions, the EARLIEST time that Pzr heaters will become unavailable is_(1)_.

2) Based on the conditions above, AP/14 (Loss of Normal HPI Makeup And/Or RCP Seal Injection) _(2)_ direct closing IHP-5 while IHP-12f) is being repaired.

Which ONE of the following completes the statements above?

A. 1. 1245

2. will B. 1. 1245

2. will NOT C. 1. 1250

2. will D. 1. 1250

2. will NOT Page 58 of 75

Oconee Nuclear Station Question:

• 59 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Main Steam Line Break on the IA Steam Generator

• Reactor Building pressure = 6.3 psig slowly decreasing

• Indicated I B SC XSUR level = 75 inches decreasing

• ALL Subcooling Margins = 65°F stable I) Currently, actual lB SC level is_(I)_ indicated XSUR level.

2) I B SC level _(2)_ AUTOMATICALLY be controlled at the desired level in accordance with Rule 7 (SC Feed Control).

Which ONE of the following completes the statements above?

A. 1. lower than

2. will B. I. lowerthan

2. will NOT C. I. approximately the same as

2. will D. I. approximately the same as

2. will NOT Page 59 of 75

Oconee Nuclear Station Question:

• 60 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

Current conditions:

• Condenser vacuum = 18.5 inches Hg stable

• ITB de-energized Which ONE of the following is the Steam Generator level that will be automatically maintained?

A. 25 inches Startup Range B. 3OinchesXSUR C. 50% Operating Range D. 240 inchesXSUR Page 60 of 75

Oconee Nuclear Station Question:

• 61 IL T48 ONS R0 NRC Exan;ination (1 point)

Given the following Unit 1 conditions:

Time = 0800:

• Reactor power = 27% stable

• Main Condenser vacuum = 22 inches Hg and degrading Time = 0810:

• Main Condenser vacuum = 20 inches Hg and degrading

1) The EARLIEST time stated above that AP/27 (Loss of Condenser Vacuum) would direct a MANUAL trip of the Main Turbine is (1 )_.

2) After the Main Turbine has been tripped, ICS will maintain Tave at approximately

_(2)_ degrees F.

Which ONE of the following completes the statements above?

A. 1. 0800

2. 555

5. 1. 0800

2. 579 C. 1. 0810

2. 555 D. 1. 0810

2. 579 Page 61 of 75

Oconee Nuclear Station Question:

• 62 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 35% stable

• Air Ejector off-gas activity increasing In accordance with API3I (Primary to Secondary Leakage)...

I) IRL-59 and IRIA-60 _(I)_ be used to determine which SG has the tube leak.

2) I RIA-40 _(2)_ be used to determine Primary to Secondary leak rate.

Which ONE of the following completes the statements above?

A. I. can

2. can B. I. can

2. can NOT C. I. can NOT

2. can D. I. can NOT

2. can NOT Page 62 of 75

Oconee Nuclear Station Question: 63 1LT48 ON$RONRCExan;ination (1 point)

The Limits and Precautions of OP/I -2/All 104/018 (GWD System) state:

1) An isolated GWD tank must be sampled for Hydrogen within _(1)_ hours of isolation.

2) If GWD tank Hydrogen concentration > 3% but <4% volume, concentration must be reduced to < 3% within (2)_ hours.

Which ONE of the following completes the statements above?

A. 1.24

2. 24 B. 1.24

2. 48 C. 1.48

2. 24 D. 1.48

2. 48 Page 63 of 75

Oconee Nuclear Station Question:

• 64 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit I conditions:

• Reactor power= 100%

• Instrument Air (IA) header pressure = 89 psig decreasing

1) Unit _f1)_ AP/22 (Loss of Instrument Air) directs dispatching an operator to perform End. 5.4 (Emergency Start of the Diesel Air Compressors).

2) IF IA header pressure reaches 85 psig the Service Air compressors will _(2)_

the instrument air header.

Which ONE of the following completes the statements above?

A. 1. one

2. manually be aligned to B. 1.two

2. manually be aligned to C. 1. one

2. automatically begin to supply D. 1. two

2. automatically begin to supply Page 64 of 75

Oconee Nuclear Station Question:

• 65 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• An Active fire has been reported in lTD switchgear I) De-energizing lTD switchgear will result in a loss of the (1)_ Motor Driven Emergency Feedwater Pump.

2) In accordance with the Fire Plan, the above lTD switchgear _(2)_ REQUIRED to be de-energized prior to application of water using a fog pattern.

Which ONE of the following completes the statements above?

A. 1.IA

2. is NOT B. 1.IA

2. is C. l.IB

2. is NOT D. 1.IB

2. is Page 65 of 75

Oconee Nuclear Station Question: 66 IL T48 ONS R 0 NRC Examiation (1 point)

Given the following conditions:

• As an extra RO on shift, you have been assigned to escort visitors

1) The MAXIMUM number of visitors you can escort into a Vital Area is _(1)_.

2) If a Site Assembly occurs while you are in a Vital Area with visitors, the public address performed per RPIO/N10001009 (Procedure for Site Assembly) will direct you to assemble at your location _(2)_.

Which ONE of the following completes the statements above?

A. 1.5

2. once you have returned the visitors to Security at the PAP B. 1.5

2. immediately, taking the visitors with you C. 1. 10

2. once you have returned the visitors to Security at the PAP D. 1. 10

2. immediately, taking the visitors with you Page 66 of 75

Oconee Nuclear Station Question: 67 1LT48 ON$RONRCExamination (1 point)

Given the following Unit 3 conditions:

• Reactor in MODE 6

• Refueling in progress

• All SR NIs are operable While refueling the reactor in accordance with OP/31N1502/007 (Operations Defueling/Refueling Responsibilities)...

1) _(1 )_ source range Ni(s) is/are required.

2) The required NI(s) _(2)_.

Which ONE of the following completes the statements above?

A. 1.two

2. can be chosen by a Reactor Operator B. 1. two

2. must be specified by Reactor Engineering C. 1. one

2. can be chosen by a Reactor Operator D. 1. one

2. must be specified by Reactor Engineering Page 67 of 75

Oconee Nuclear Station Question:

• 68 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit 1 condition:

• Reactor in MODE I Which ONE of the following is the MINIMUM Pressurizer level (inches) that would require declaring Tech Spec 3.4.9 (Pressurizer) LCO NOT met in accordance with PT/I /N0600/OOI (Periodic Instrument Surveillance)?

A. 240 B. 260 C. 285 D. 340 Page 68 of 75

Oconee Nuclear Station Question:

• 69 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

Current conditions:

• Keowee Emergency Start channels I and 2 inoperable

1) In accordance with Tech Spec 3.3.21 (EPSL Keowee Emergency Start Function),

the MAXIMUM time allowed to declare both KHUs inoperable is _(1 )_.

2) In accordance with Tech Spec 3.8.1 (AC Systems-Operating), _(2)_ Standby Busfes) is/are required to be energized from a Lee Combustion Turbine via an isolated power path.

Which ONE of the following completes the statements above?

A. 1. immediately

2. BOTH B. 1. 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

2. BOTH C. I. immediately

2. only ONE D. 1. 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

2. only ONE Page 69 of 75

Oconee Nuclear Station Question:

• 70 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit 3 conditions:

• 3A GWD gas tank release in progress

• Release is at 2/3 Station Limit

1) 3RIA-45 (Norm Vent Gas) High and Alert setpoints will be set at_(1)_the normal 1/3 Station Limit setpoint in accordance with PT/O/N0230/OO1 (Radiation Monitor Check).

2)11 3RIA-45 (Norm Vent Gas) High alarm setpoint is reached, the 3A GWD gas tank release _(2)_ automatically terminate.

Which ONE of the following completes the statements above?

A. 1. double

2. will B. 1. double

2. will NOT C. 1. half

2. will D. 1. half

2. will NOT Page 70 of 75

Oconee Nuclear Station Question:

• 71 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• 36 gpm primary to secondary eak in IA SG

• RCS cooldown in progress

• RCS temperature = 395°F decreasing

• The SRO has determined that current method of maintaining SCM is inadequate

1) The reason that the SGTR tab makes every effort to prevent a Reactor trip during shutdown isto minimize the chance of _(1)_.

2) If an operator is dispatched to align Auxiliary Pressurizer Spray during the subsequent RCS cooldown and receives a dose alarm while performing this task, per OMP 1-18 (Implementation Standard During Abnorma and Emergency Events) they _(2)_.

Which ONE of the following completes the statements above?

A. 1. lifting the MSRVs and causing a radiation release to the environment

2. may complete the task while monitoring their dose B. 1. lifting the MSRVs and causing a radiation release to the environment

2. must immediately stop and leave the area C. 1. RCS pressure transients and causing the Primary to Secondary leak rate to increase

2. may complete the task while monitoring their dose D. I RCS pressure transients and causing the Primary to Secondary leak rate to increase

2. must immediately stop and leave the area Page 71 of 75

Oconee Nuclear Station Question: 72 1LT48 ON$RONRClixarnination (1 point)

In accordance with PD-RP-ALL-0001 (Radiation Worker Responsibilities), which ONE of the following states...

1) the MAXIMUM annual Dose Limit (REM) allowed by the NRC?

2) the MAXIMUM lifetime Planned Special Exposure limit (REM) allowed by the NRC?

A. 1.5

2. 25 B. 1.5

2. 50 C. 1.2

2. 25 D. 1.2

2. 50 Page 72 of 75

Oconee Nuclear Station Question:

• 73 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 90% slowly decreasing

• SG Primary to Secondary leak rate = 6 gpm stable

• AP/31 (Primary to Secondary Leakage) in progress

• Unit shutdown in progress Current conditions:

• Reactor power = 60% slowly decreasing

• SG Primary to Secondary leak rate = 28 gpm slowly increasing Which ONE of the following describes the actions required in accordance with plant procedures?

A. Continue unit shutdown using AP/31 B. Exit API3I and go directly to SGTR tab C. Exit, perform IMAs, then go to SGTR tab D. Perform AP/31 in parallel with performing the SGTR tab Page 73 of 75

Oconee Nuclear Station Question:

• 74 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit 1 conditions:

• Reactor tripped from 100% power

• The following Statalarms actuate:

ISA-I/C-Il (ES Channel 7 Trip)

ISA-l/D-Il (ES Channel 8 Trip)

- I SA-2/C-4 (RC Pressurizer Level Emerg High/Low)

ISA-2/C-8 (AFIS Header A Initiated)

- ISA-2/D-5 (HP LDST Level Interlock Initiated)

- I SA-8/A-3 (FDWPT A Trip)

- ISA-8/A-6 (FDWPT B Trip)

Which ONE of the following emergency procedures has the highest priority?

A. EOP Enclosure 5.1 (ES Actuation)

B. Rule 5 (Main Steam Line Break)

C. EOP Enclosure 5.5 (Pzr and LDST Level Control)

D. Rule 3 (Loss of Main or Emergency Feedwater)

Page 74 of 75

Oconee Nuclear Station Question:

• 75 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

• Reactor power = 100%

• Both Main Feedwater pumps trip Current conditions:

• REACTOR TRIP pushbutton has been depressed

• Reactor power = 3% slowly decreasing Which ONE of the following describes the NEXT action required in accordance with EOP Immediate Manual Actions?

A. Perform Rule I B. Verify all turbine stop valves closed C. Verify RCP seal injection available D. Depress the Turbine TRIP pushbutton Page 75 of 75

Examination KEYfor: 1LT48 ONS RO NRC Examina Question Answer Number I B 2 D 3 B 4 D 5 D 6 A 7 B 8 B 9 B 10 A II C 12 A 13 A 14 B 15 C 16 A 17 C 18 D 19 C 20 A 21 A 22 B 23 C 24 B 25 D Printed 12/15/2015 11:48:12AM Page 1 of3

Examination KEYfor: IL T48 ONS R 0 NRC Examina Question Answer Number 26 D 27 B 28 A 29 C 30 B 31 C 32 D 33 A 34 A 35 D 36 C 37 C 38 A 39 C 40 A 41 A 42 B 43 C 44 A 45 A 46 D 47 C 48 C 49 A 50 B Printed 12/15/2015 11:48:13 AM Page 2 of3

Examination KEYfor: 1LT48 ONSRONRCExamina Question Answer Number 51 C 52 C 53 B 54 D 55 A 56 B 57 C 58 D 59 B 60 B 61 B 62 C 63 B 64 D 65 A 66 B 67 B 68 B 69 A 70 B 71 A 72 A 73 B 74 B 75 D Printed 12/15/2015 11:48:13 AM Page 3 of3

OCONEE 2015-302 RO Written Exam References

1. Question 10: EP/1/N1800/001 Enclosure 5.21, Full Range SG Level For Water In Steam Lines.

2. Question 16: AP/1/N1700/034 Enclosure 5.1, Generator Capability Curve.

Oconee Nuclear Station Question: I 1LT48 ON$RONRCExarnination (1 point)

Which ONE of the following combinations of statalarms, if actuated, would result in illumination of the Trip Confirm Lamp on the Diamond?

A. ISA-IIE-2 (CRD BKRATRIP)

ISA-i IE-4 (CRD BKR C TRIP)

B. ISA-IIE-2 (CRD BKRATRIP)

ISA-I/E-5 (CRD BKR D TRIP)

C. ISA-IIE-2 (CRD BKRATRIP)

ISA-IIE-6 (CRD ELECTRONIC TRIP E)

D. JSA-1/E-3 (CRD BKR B TRIP)

ISA-IIE-7 (CRD ELECTRONIC TRIP F)

Page 1 of 75

Oconee Nuclear Station Question:

2 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• IRC-66failsOPEN

1) The initial Reactor Protective System trip function setpoint reached will be RCS

_(1)_ pressure.

2) Following the Reactor trip, with actual SG Outlet pressure = 985 psig, the Turbine Bypass valves will be _(2)_.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. Low

2. throttled open B. 1. Variable Low

2. throttled open C. 1. Low

2. closed D. I. Variable Low

2. closed Page 2 of 75

Oconee Nuclear Station Question: 3 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1700

• Reactortrip from 100%

Time = 1705

• All SCMs = 0°F stable

• HPI header A flow = 578 gpm stable

• IA and lB HPI pumps operating

• IC HPI pump breaker failed open

1) The valve that must be opened in accordance with Rule 2 (Loss of SCM) is

_t1 )_.

2) In accordance with Rule 6 (HPI), once the above valve is opened, the MAXIMUM tot HPI flow is _(2)_ gpm.

Which ONE of the following completes the statements above?

A. I. IHP-409

2. 750 B. I. IHP-409

2. 950 C. I. IHP-410

2. 750 D. 1. IHP-410

2. 950 Page 3 of 75

Oconee Nuclear Station Question:

• 4 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit I conditions:

Time = 1200

• Power escalation in progress

• Reactor power = 38% slowly increasing

• A Switchyard Isolation occurs Time = 1215

• RCS pressure = 2125 psig

• Pressurizer temperature = 640.0°F

• Pressurizer level is stable

• All Pressurizer heaters are energized

1) At Time = 1200, an AUTOMATIC Reactor trip _(1)_ occur.

2) At Time = 1215, the pressurizer is _(2)_.

Which ONE of the following completes the statements above?

A. 1. will

2. saturated B. 1. will

2. subcooled C. 1. will NOT

2. saturated D. 1. will NOT

2. subcooled Page 4 of 75

Oconee Nuclear Station Question:

• 5 1LT48 ON$RONRCExamination (1 point)

Given the following Unit 2 conditions:

Initial conditions:

• Reactor power = 78% stable Current conditions:

• 2A2 Reactor Coolant Pump trips

1) Controlling Tave signal will AUTOMATICALLY switch to Loop _(1 )_ Tave.

2) The reason that the Controlling Tave signal is switched is due to _(2)_.

Which ONE of the following completes the statements above?

A. l.A

2. RCP 2A2 breaker position B. l.B

2. RCP 2A2 breaker position C. l.A

2. Loop RCS flow indication D. 1.B

2. Loop RCS flow indication PageS of 75

Oconee Nuclear Station Question:

• 6 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit 1 conditions:

• Reactor power = 100%

• All HPI pumps fail

• AP/14 (Loss of Normal HPI Makeup and/or RCP Seal Injection) initiated

1) Reactor Coolant Pump thermal barrier cooling will initially be provided by _(1)_.

2) The reason thermal barrier cooling is provided is to prevent seal damage due to

_(2)_.

Which ONE of the following completes the statements above?

A. 1. Component Cooling

2. excessive temperature B. 1. Component Cooling

2. flashing across the lower seal C. 1. Low Pressure Service Water

2. excessive temperature D. 1. LowPressure Service Water

2. flashing across the lower seal Page 6 of 75

Oconee Nuclear Station Question:

• 7 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

Time = 1200

• LPI aligned in the Normal Decay Heat Removal mode

• IA LPI pump operating Time= 1201

• Loss of offsite power results in Switchyard Isolation Time = 1202

• Power restored via CT-4

1) Assuming NO operator actions, at Time = 1205 _f1)_ LPI pump(s) will be operating.

2) If NEITHER the IA NOR the lB LPI pumps were available at Time = 1202, manual reset of Load Shed is _(2)_ prior to starting the IC LPI pump.

Which ONE of the following completes the statements above?

A. I. the IA

2. required B. 1. thelA

2. NOT required C. 1.NO

2. required D. 1.NO

2. NOT required Page 7 of 75

Oconee Nuclear Station Question:

• 8 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 1200

• RCS temperature = 450°F

• Various Breakers supplying Pzr heaters trip OPEN

• F1N24 reports 420 KW of Pressurizer heater capacity remain available Time = 1400

• RCS temperature = 335°F stable

1) At Time = 1200, LCO 3.4.9 (Pressurizer) requirements _(1)_ met.

2) At Time = 1400, the requirements of Tech Spec 3.4.9 _(2)_ apply.

Which ONE of the following completes the statements above?

A. 1. are

2. do NOT B. 1. are

2. do C. 1. are NOT

2. do NOT D. 1. are NOT

2. do Page 8 of 75

Oconee Nuclear Station Question:

• 9 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• JA HPI pump operating

• I HP-27 closed Current conditions:

• Both Main FDW pumps trip

• Reactor power 52% decreasing

• Rule I (ATWS/Unanticipated Nuclear Power Production) in progress

1) In accordance with Rule 1, lB HPI pump will be started if 1HP-27wi11 NOT open in order to _(1 )_.

2) When all other requirements are met in Rule 6 (HPI), CRS concurrence _(2)_ be required to throttle HPI.

Which ONE of the following completes the statements above?

A. 1. madmize flow in IAHPI header

2. will B. 1. utilize the HPI Cross-over header

2. will C. 1. madmize flow in IAHPI header

2. will NOT D. 1. utilize the HPI Cross-over header

2. will NOT Page 9 of 75

Oconee Nuclear Station Question:

• 10 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

• Steam Generator Tube Rupture in lB SG

• Tcold = 490°F slowly decreasing

• RB pressure = 3.1 psig slowly decreasing

• RB temperature = 203°F slowly decreasing

• I B SG pressure = 606 psig slowly decreasing

• I B SC Full Range level = 54% slowly increasing

1) 1 B SC level _(1)_ reached the level at which water can enter the Main Steam lines.

2) Assuming lB SC has reached the level of water in the Main Steam line and steaming has been discontinued, the next procedural step per the SGTR tab is to

_(2)_.

Which ONE of the following completes the statements above?

REFERENCE PROVIDED A. I. has

2. verify the IA SG is available for steaming B. I. has NOT

2. verify the IA SC is available for steaming C. I. has

2. align SC blowdown to the I B SC to lower level D. I. has NOT

2. align SC blowdown to the I B SC to lower level Page 10 of 75

Oconee Nuclear Station Question: 11 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit 2 conditions:

• Loss of Heat Transfer has occurred

• Unit 2 TDEFWP is now available to feed the Steam Generators

• 2A SG level = 8 inches XSUR slowly decreasing

• 2A SG pressure = 412 psig slowly decreasing

• 2B SG level = 5 inches XSUR slowly decreasing

• 2B SG pressure = 385 psig slowly decreasing In accordance with Rule 7 (Steam Generator Feed Control), the MAXIMUM initial feed rate allowed to EACH Steam Generator is limited to _(1)_ gpm in order to prevent

_(2)_ to the Steam Generator tubes.

Which ONE of the following completes the statement above?

A. 1.50

2. excessive thermal stresses B. 1.50

2. flow induced vibration damage C. 1.100

2. excessive thermal stresses D. 1. 100

2. flow induced vibration damage Page 11 of75

Oconee Nuclear Station Question:

• 12 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• ACB-4 closed

• A Switchyard Isolation occurs Current conditions:

• Keowee Unit 2 Emergency lockout

• 230 Ky Yellow Bus Differential lockout Main Feeder buses will be energized _(1)_ from _(2)_.

Which ONE of the following completes the statement above?

A. 1. manually

2. CT-4 B. 1. automatically

2. CT-4 C. 1. manually

2. CT-5 D. 1. automatically

2. CT-5 Page 12 of 75

Oconee Nuclear Station Question:

• 13 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

• Station Blackout has occurred Concerning the TDEFWP.

I) Oil cooling water will be supplied by _(1)_.

2) A caution in the EOP BC tab states that reducing steam pressure below approximately _(2)_ psig can result in reduced TDEFDWP pumping capability.

Which ONE of the following completes the statements above?

A. 1. HPSW

2. 250 B. 1. HPSW

2. 300 C. I. LPSW

2. 250 D. I. LPSW

2. 300 Page 13 of 75

Oconee Nuclear Station Question: 14 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

lnftial conditions:

• Reactor power = 100%

• SASS in Manual while FlN24 repairs Pressurizer Level 3 transmitter

• 1 HP-I 20 in AUTO selected to Pressurizer Level I Current conditions:

• Vital power to 10CM Train A fails Which ONE of the following describes Pressurizer level control with IHP-120?

A. Selecting Pressurizer Level 2 and depressing the AUTO pushbutton on IHP-120 are required to restore automatic control at setpoint B. Manual control using IHP-I20 Bailey controller is all that is available C. Selecting Pressurizer Level 2 ONLY will restore automatic control at setpoint D. Additional actions are NOT required since Automatic control at setpoint is retained Page 14 of 75

Oconee Nuclear Station Question:

• 15 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

lime = 0800:

• Reactor power = 100%

• Instrument Air pressure decreasing

• AP122 (Loss of Instrument Air) initiated Time = 0810:

• I B Main Steam Line Break in containment

• Reactor Building pressure 3.2 psig slowly increasing

• Instrument Air and Auxiliary Instrument Air pressure lost At lime = 0810...

1) Rule 7 (SG Feed Control) requires IASG to be controlled at_(1)_ inches XSUR level.

2) 1 FDW-31 5 _(2)_ be operated from the Control Room.

Which ONE of the following completes the statements above?

A. 1.30

2. can B. 1.30

2. can NOT C. 1.60

2. can D. 1.60

2. can NOT Page 15 of 75

Oconee Nuclear Station Question:

• 16 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit I conditions:

• Reactor power = 55% stable

• AP/34 (Generator Grid Disturbance) in progress

• Generator Output = 850 MWe and (+) 450 MVARs

• Generator Hydrogen Pressure = 60 psig

• Generator Frequency = 57.0 Hz

1) In accordance with AP/34, the Generator output _(1) within the limits of the Generator Capability Curve.

2) Manually tripping the Main Turbine_(2)_ required.

Which ONE of the following completes the statements above?

REFERENCE PROVIDED A. 1. is

2. is B. I. is NOT

2. is C. I. is

2. is NOT D. I. is NOT

2. is NOT Page 16 of 75

Oconee Nuclear Station Question:

• 17 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Loss of Heat Transfer exists due to the loss of ALL FDW sources

• HPI Forced Cooling in progress

• RCS pressure = 2210 psig slowly decreasing

• Pzr Level = 380 inches increasing

• Core SCM = 56°F increasing In accordance with Rule 6 (HPI), HPI flow _(1 )_ be throttled because _(2)_.

Which ONE of the following completes the statement above?

A. 1. may NOT

2. CETCs are increasing B. I. may NOT

2. RCS pressure is decreasing C. 1. may

2. CETCs are decreasing D. 1. may

2. Pzr Level is increasing Page 17 of 75

Oconee Nuclear Station Question: 18 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• 1A Main Steam Line Break occurs Current conditions:

• Reactor has tripped

• RCS Tave = 544°F slowly increasing

• 1A SG pressure = 0 psig

• lB SG pressure = 990 psig slowly increasing

1) The Turbine Driven Emergency Feedwater Pump (TDEFDWP) is _(1)_.

2) The TDEFDWP can be _(2)_ AFIS is reset.

Which ONE of the following completes the statements above?

A. 1. operating

2. secured ONLY after B. 1. operating

2. secured before C. 1. NOT operating

2. started ONLYafter D. 1. NOT operating

2. started before Page 18 of 75

Oconee Nuclear Station Question:

• 19 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 75% stable

• Instrument failure results in rod withdrawal

• ICS is taken to hand during Plant Transient Response (PTR)

In accordance with OMP 1-18 (Implementation Standard During Abnormal and Emergency Events)...

1) In order to declare the plant stable, _(1 )_ power must be less than or equal to the pre-transient level.

2) When inserting control rods during PTR, the criteria to stop the initial control rod insertion is when RCS pressure and Tave _(2)_.

Which ONE of the following completes the statements above?

A. 1.NI

2. stop increasing B. 1.NI

2. return to the pre-transient values C. 1. CoreThermal

2. stop increasing D. 1. Core Thermal

2. return to the pre-transient values Page 19 of 75

Oconee Nuclear Station Question:

• 20 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 68% increasing Current conditions:

• Control Rod group 6 rod 6 = 0% withdrawn I) An ICS Asymmetric Rod Runback will reduce power to _(1)_.

2) When an ICS Asymmetric Rod Runback is in progress, depressing the HOLD pushbutton on the LCP _(2)_ stop the runback.

Which ONE of the following completes the statements above?

A. 1. 55%

2. will B. 1. 55%

2. will NOT C. 1. 60%

2. will D. I. 60%

2. will NOT Page 20 of 75

Oconee Nuclear Station Question:

• 21 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit I conditions:

Time = 1200

• Reactor shutdown in progress

• Reactor power = 58% decreasing

• Control Rod Group 7 Rod 3 mechanically bound Time = 1215

• ISA-2/B-1O (CRD Asymmetric Rod Position Error) actuates

• Power decrease stopped

• Reactor power = 50% stable Time = 1415

• Reactor power = 50% stable

1) At Time = 1415, Control Rod Group 7 Rod 3 _(1)_ be closer to the Group 7 average position.

2)11 a Reactor trip occurs, Group 7 in limit _(2)_ be indicated.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. will

2. will B. 1. will NOT

2. will C. 1. will

2. will NOT D. 1. will NOT

2. will NOT Page 21 of 75

Oconee Nuclear Station Question:

• 22 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• Pressurizer level = 210 inches slowly decreasing

• IHP-120 (RC VOLUME CONTROL) failed CLOSED

• AP/14 (Loss of Normal HPI Makeup and/or RCP Seal Injection) initiated In accordance with AP/14...

1) RCS makeup is initially provided by throttling _(1)_.

2) Pressurizer level is maintained ata MINIMUM of _(2)_ inches.

Which ONE of the following completes the statements above?

A. 1. IHP-26

2. 80 B. 1. IHP-26

2. 200 C. 1. IHP-122 (RC VOLUME CONTROL BYPASS)

2. 80 D. 1. IHP-122 (RC VOLUME CONTROL BYPASS)

2. 200 Page 22 of 75

Oconee Nuclear Station Question:

• 23 1LT48 ON$RONRCExamination (1 point)

Given the foflowing Unit I conditions:

• SGTRintheIASG

• SGTR tab in progress

• RCS temperature = 540° F decreasing

• 1TA and ITB are de-energized In accordance with the SGTR tab...

1) Core SCM is decreased during cooldown to _(I)_.

2) The method that will be used to reduce SCM is cycling _(2)_.

Which ONE of the following completes the statements above?

A. 1. minimize tensile stress on the IA SG

2. the PORV B. I. minimize tensile stress on the IA SG

2. Pzr spray C. I. reduce the primary to secondary leak rate

2. the PORV D. I. reduce the primary to secondary leak rate

2. Pzr spray Page 23 of 75

Oconee Nuclear Station Question:

• 24 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• AP/31 (Primary to Secondary Leakage) in progress

1) As a result of Primary to Secondary leakage, the Unit 1/2 Turbine Building Sump pump breakers are opened _(1)_.

2) A sustained loss of power to I RIA-54 will trip BOTH Turbine Building Sump Pumps

_(2)_.

Which ONE of the following completes the statements above?

A. I. ONLY when 1RIA-54 is in alarm or inoperable

2. after a 2 minute timer B. 1. ONLY when 1 RIA-54 is in alarm or inoperable

2. immediately C. 1. ANYTIME AP/31 (Primary to Secondary Leakage) has been initiated

2. after a 2 minute timer D. 1. ANYTIME AP/31 (Primary to Secondary Leakage) has been initiated

2. immediately Page 24 of 75

Oconee Nuclear Station Question:

• 25 IL T48 ONS R0 NRC Exantination (1 point)

Given the following plant conditions:

• B GWD Tank rupture occurs

• JRIA-32 fAux Bldg Gas) in HIGH alarm

• IRIA-39 (Cntl Rm Gas) in HIGH alarm

• Unit I AP/18 (Abnormal Release of Radioactivity) has been entered I) APII8 directs starting _(1)_Outside Air Booster Fan(s).

2) The Outside Air Booster Fan(s) _(2)_ utiHze Unit 2 Main Purge Filters.

Which ONE of the following completes the statements above?

A. I. ONLY one

2. will B. I.two

2. will C. I. ONLY one

2. will NOT D. I.two

2. will NOT Page 25 of 75

Oconee Nuclear Station Question:

• 26 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0800:

• Reactor power = 25%

• IA Main Feedwater Pump is operating

• I SA-2/B-1 I (ICS AUTO POWER FAILURE) actuated

• AP/23 (Loss of ICS Power) initiated Time = 0805:

• Reactor trips AP/23 (Loss of ICS Power)...

1) _(1)_ require manual tripping of the IA Main Feedwater Pump.

2) directs using _(2)_ to control decay heat removal.

Which ONE of the following completes the statements above?

A. 1. does NOT

2. ADVs B. I. does

2. ADVs C. 1. does NOT

2. TBVs D. 1. does

2. TBVs Page 26 of 75

Oconee Nuclear Station Question: 27 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0800

• Reactor trip

• SBLOCA

• ES 1-6 actuate

• CT-I Lockout

1) 60 seconds later, Main FDW Pumps _(I )_ AUTOMATICALLY tripped.

2) In accordance with Rule 2 (Loss of SCM), an initial EFDW flow rate of ...(2)_ gpm per SG is established to remove decay heat.

Which ONE of the following completes the statements above?

A. 1. have

2. 300 B. 1. have NOT

2. 300 C. 1. have

2. 450 D. 1. have NOT

2. 450 Page 27 of 75

Oconee Nuclear Station Question: 28 IL T48 ONS RD NRC Examination (1 point)

Unit I plant conditions:

lime = 0800: MFBMP Circuitry Actuated Time = 0802: Power is restored to the MFBs I) The normal power supply to the IA CC pump is _(I)_.

2) CC pumps with their control switches in AUTO will start _(2)_after power is restored.

Which ONE of the following completes the statements above?

A. 1. IXL

2. immediately B. I. IXL

2. 20 seconds C. I. 1XSI

2. immediately D. I. IXSI

2. 20 seconds Page 28 of 75

Oconee Nuclear Station Question:

• 29 1LT48 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Time = 0800

• Reactor power = 100%

• MSLB inside containment occurs

• RCS pressure = 1575 psig Time = 0805

• RCS pressure = 1800 psig increasing

• The SOP is performing End 5.1 (ES Actuation)

1) At Time = 0800, Diverse HPI _(1 )_ AUTOMATICALLY actuated.

2) ES Channels I & 2 MANUAL Pushbuttons _(2)_ have to be depressed prior to throttling HPI.

Which ONE of the following completes the statements above?

A. 1. has

2. do B. 1. has

2. do NOT C. 1. has NOT

2. do D. 1. has NOT

2. do NOT Page 29 of 75

Oconee Nuclear Station Question:

• 30 1LT48 ON$RONRCExamination (1 point)

Given the following Unit 3 conditions:

• Reactor power = 100%

• 3A Purification IX in service

• Letdown temperature increases by 5°F

1) With no operator actions, the RCS boron concentration over the next several hours will _(1) due to the letdown temperature increase.

2) With control rods responding, assuming no other operator actions, taking ONLY the ICS Reactor Bailey station to HAND _(2)_ stop the rod motion.

Which ONE of the following completes the statements above?

A. 1. increase

2. will B. 1. increase

2. will NOT C. 1. decrease

2. will D. 1. decrease

2. will NOT Page 30 of 75

Oconee Nuclear Station Question:

• 31 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• ITE bus lockout occurs Which ONE of the following contains ONLY pumps that are jiji being powered from 4160V switchgear?

A. IBHPIP, IBLPIP B. IBHPIP, ICLPIP C. IC HPIP, lB LPIP D. IC HPIP, IC LPIP Page 31 of 75

Oconee Nuclear Station Question:

• 32 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0400

• Reactor power = 100%

Time = 0405

• RCS pressure = 550 psig decreasing Time = 0445

• RCS pressure = 200 psig decreasing Time = 0450

• RCS pressure = 100 psig decreasing

• 1LP-17 is failed CLOSED

1) In accordance with OMP 1-l8AttachmentA(Licensed Operator Memory Items), the LATEST time the LPI pumps are required to be secured is _(1)_.

2) At Time = 0450, LPI flow _(2)_ entering the core through BOTH LPI injection nozzles.

Which ONE of the following completes the statements above?

A. 1. 0425

2. is NOT B. 1. 0425

2. is C. 1. 0435

2. is NOT D. 1. 0435

2. is Page 32 of 75

Oconee Nuclear Station Question:

• 33 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit 2 conditions:

• Reactor power = 100%

• Quench Tank is being pumped to 2A BHUT using the Quench Tank Pump AND the Component Drain Pump

1) 0P121N11041017 (Quench Tank Operations) requires Quench Tank Level to be maintained at a MAXIMUM of _(J)_ inches.

2) If ES I and 2 actuate, this flow path _(2) automatically isolate.

Which ONE of the following completes the statements above?

A. 1.90

2. will B. 1.90

2. will NOT C. 1. 100

2. will D. 1. 100

2. will NOT Page 33 of 75

Oconee Nuclear Station Question:

• 34 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

Time 0400:

• Reactor power = 100%

• Component Cooling Return Flow = 563 gpm decreasing

• 1SA-09/C-1 (Component Cooling Retum Flow Low) actuates Time = 0402:

• Component Cooling Return Flow = 103 gpm decreasing

• The Standby CC pump has NOT started

• CC Surge Tank level = 18 inches stable

1) At Time =0400, Statalarm ISA-09/C-1 _(1)_ valid.

2) At Time = 0402, 1 SA-09/C-1 ARG _(2)_ direct manually starting the Standby CC pump.

Which ONE of the following completes the statements above?

A. 1. is

2. will B. 1. is

2. will NOT C. 1. is NOT

2. will D. 1. is NOT

2. will NOT Page 34 of 75

Oconee Nuclear Station Question:

• 35 1LT48 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• IRC-1 failed OPEN

• RCS pressure = 2150 psig decreasing

• AP/44 (Abnormal Pressurizer Pressure Control) initiated Current conditions:

• I RC-3 failed OPEN

1) Pressurizer heaters _(1)_ be able to maintain RCS pressure above the RPS trip setpoint.

2) AP144 will initially direct stopping the _(2)_ to help mitigate the failure.

Which ONE of the following completes the statements above?

A. 1. will

2. IAI RCP ONLY B. 1. will

2. IAI and 1A2 RCPs C. 1. will NOT

2. IAI RCP ONLY D. 1. will NOT

2. IAI and 1A2 RCPs Page 35 of 75

Oconee Nuclear Station Question: 36 IL T48 ONS R0 NRC Examination (1 point)

The DNBR Safety Limit is applicable in MODE(s) _(1)_.

The _(2)_ RPS trip is designated to prevent exceeding the DNBR AND the fuel center line melt Safety Limit.

Which ONE of the following completes the statement above?

A. 1. one ONLY

2. High Flux B. 1. one ONLY

2. High RCS Temperature C. 1. one AND two

2. High Flux D. 1. oneANDtwo

2. High RCS Temperature Page 36 of 75

Oconee Nuclear Station Question:

• 37 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

• RCS cooldown in progress

• RCS pressure = 1730 psig slowly decreasing

1) 1 SA-7/D-6 (ES HPI Bypass Permit) _(l )_ actuated.

2) Once bypassed, HPI ES _(2)_ AUTOMATICALLY reinstate when RCS pressure is returned to normal operating pressure.

Which ONE of the following completes the statements above?

A. 1. is

2. does B. 1. is

2. does NOT C. 1. is NOT

2. does D. 1. is NOT

2. does NOT Page 37 of 75

Oconee Nuclear Station Question:

• 38 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 0500:

• Reactor power = 25% stable

• IA and 1C RBCUs operating in HIGH speed

• lB RBCU is operable and OFF Time = 0501:

• A LOCA occurs

• ES channels 1-5 actuate

• ES channel 6 fails to actuate

• A LOOP occurs Time = 0505:

• Offsite power is restored to Unit I AtTime = 0506, IC RBCU is_(1)_and lB RBCU is_(2).

Which ONE of the following completes the statement above?

A. I. OFF

2. OFF B. 1. OFF

2. operating in LOW speed C. 1. operating in LOW speed

2. OFF D. 1. operating in LOW speed

2. operating in LOW speed Page 38 of 75

Oconee Nuclear Station Question: 39 1LT48 ONSRONRCExamination (1 point)

Following a Large Break LOCA, _(1)_ is added to the Reactor Building Emergency Sump to _(2)_.

Which ONE of the following completes the statement above?

A. 1. LiOH (Lithium Hydroxide)

2. aid in keeping Iodine in solution, ultimately reducing offsite dose B. 1. LiOH (Lithium Hydroxide)

2. minimize Hydrogen production from the Boric Acid reaction with Zircoloy C. 1. TSP (Trisodium Phosphate Dodecahydrate)

2. aid in keeping Iodine in solution, ultimately reducing offsite dose D. 1. TSP (Trisodium Phosphate Dodecahydrate)

2. minimize Hydrogen production from the Boric Acid reaction with Zircoloy Page 39 of 75

Oconee Nuclear Station Question: 40 1LT48 ONSRONRCExamination (1 point)

1) The actual SETPOINT for Reactor Building Spray actuation is _(1)_ psig.

2) The I BS-2 position if ES Channel 8 fails to actuate is _(2)_.

Which ONE of the following completes the statements above?

A. 1. 10

2. Closed B. 1. 10

2. Open C. 1. 15

2. Closed D. 1. 15

2. Open Page 40 of 75

Oconee Nuclear Station Question:

• 41 1LT48 ON$RONRCExarnination (1 point)

Given the following plant conditions:

Time= 1200

• Unit 2 Reactor power = 75%

• Reactor Diamond, BOTH FDW masters, and the Main and Startup FDW valves are in HAND Time= 1215

• Reactor trip occurs

1) At Time = 1200, the normal steam supply to the Unit 2 Main Feedwater Pump Turbines is _(1)_.

2) At Time = 1215, runback of Main Feedwater flow _(2)_ occur AUTOMATICALLY.

Which ONE of the following completes the statements above?

A. 1. DBleed

2. will B. 1. DBIeed

2. will NOT C. 1. Auxiliary Steam

2. will D. 1. Auxiliary Steam

2. will NOT Page 41 of 75

Oconee Nuclear Station Question: 42 1LT48 ON$RONRCExarnination (1 point)

In accordance with Limits and Precautions of 0P111N11061014 (Moisture Separator Reheater), the MAXIMUM allowed side to side delta Temperature across the Low Pressure Turbines during normal operation is _(1 )_ degrees F, and we ensure this limit is not exceeded by throttling valves controlling the steam supply to the _(2)_ as power level changes.

Which ONE of the following completes the statement above?

A. 1.50

2. First Stage Reheaters B. 1.50

2. Second Stage Reheaters C. 1. 100

2. First Stage Reheaters D. 1. 100

2. Second Stage Reheaters Page 42 of 75

Oconee Nuclear Station Question:

43 IL T48 ONS R0 NRC Exantination (1 point)

Given the following Unit I conditions:

• Reactor power = 80% stable

• Reactor Diamond and both Feedwater masters are in HAND

• Feedwater Transient occurs which results in one of the Main Feedwater Pumps tripping on High Discharge Pressure I) The Main Feedwater Pump with the LOWER Discharge Pressure trip setpoint is the

_(1)_ Main Feedwater Pump.

2) AP/1 (Unit Runback) states that you are to initiate a manual power reduction to

_(2)_% CTP.

Which ONE of the following completes the statements above?

A. I.IA

2. 65 B. I.IA

2. <74 C. I.IB

2. <65 D. lIE

2. <74 Page 43 of 75

Oconee Nuclear Station Question:

• 44 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

• Two AFIS pressure transmitters on IA SG fail bIg.fi Current conditions:

• IA Main Steam Line break occurs

• IA SG pressure = 480 psig rapidly decreasing I) AFIS _(1 )_ AUTOMATICALLY actuated.

2) Rule 5 (Main Steam Line Break) requires the operator to _j2)_.

Which ONE of the following completes the statements above?

A. 1. is

2. select OFF for IA MD EFDW Pump B. I. is

2. open IAS-40 while closing I MS-47 C. 1. is NOT

2. select OFF for IA MD EFDW Pump D. 1. is NOT

2. open IAS-40 while closing IMS-47 Page 44 of 75

Oconee Nuclear Station Question:

• 45 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• Confirmed flooding of the Turbine Building is in progress

1) The EOP TBF tab _(1)_ state that AP/lO (Turbine Building Flood) is being used in parallel with this tab.

2) When performing AP/1 0, _(2)_ Feedwater is required to be used as the long term source of water to the Steam Generators.

Which ONE of the following completes the statements above?

A. 1. does

2. Emergency B. 1. does

2. Main C. 1. does NOT

2. Emergency D. 1. does NOT

2. Main Page 45 of 75

Oconee Nuclear Station Question: 46 1LT48 ONS RO NRC Examination (1 point)

1) Automatic control circuits will close the associated feeder breakers of 1X7, 2X4 &

3X4 after a load shed has occurred and a _(l)_ second timer has timed out.

2) The feeder breakers above will trip open on receipt of a MINIMUM of _(2)_.

Which ONE of the following completes the statements above?

A. 1.30

2. BOTH channel A and channel B Load Shed signals B. 1.30

2. EITHER channel A or channel B Load Shed signal C. 1.60

2. BOTH channel A and channel B Load Shed signals D. 1.60

2. EITHER channel A or channel B Load Shed signal Page 46 of 75

Oconee Nuclear Station Question:

• 47 1LT48 ONSRONRCExamination (1 point)

Given the following station conditions:

Initial conditions:

• All three units Reactor power = 100%

Current conditions:

• All Units 4160V Main Feeder Busses are de-energizec]

• Unit 1 2, and 3 EOP Blackout tabs in progress Which ONE of the following describes the required status of Llnit I Essential Inverters per EOP Enclosure 5.38 (Restoration of Power) and why?

Unit Is Essential Inverters A. remain energized to provide power to ES channels B. remain energized to provide control power to 4160V Switchgear C. are de-energized to extend the life of available batteries D. are de-energized to prevent inverter damage Page 47 of 75

Oconee Nuclear Station Question: 48 1LT48 ON$RONRCExantination (1 point)

Given the following plant conditions:

• 3CA Battery Charger fails output voltage

- = 0 VDC

• 3CA Battery voltage = 120 VDC

• 3DCB Bus voltage = 123 VDC

• Unit I DCNDCB Bus voltage = 125 VDC

• Unit 2 DCNDCB Bus voltage = 127 VDC Which ONE of the following will automatically supply power to 3DIA panelboard?

A. 3CA Battery B. 3DCB Bus C. Unit I DC Bus D. Unit 2 DC Bus Page 48 of 75

Oconee Nuclear Station Question: 49 1LT48 ON$RONRCExarnination (1 point)

Given the following plant conditions:

Time = 1200

• All three units at 50% power

• ACB-3 is closed Time = 1245

• LOCA occurs on Unit I

• ES channels I and 2 actuate on Unit I

• CT-I lockout occurs At Time = 1250, KHU I control power is supplied by Which ONE of the following completes the statement above?

A. CX Transformer from Keowee Unit I B. IX Transformer from Keowee Unit I C. CX Transformer from Keowee Unit 2 D. IX Transformer from 230 KV Switchyard Page 49 of 75

Oconee Nuclear Station Question: 50 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1200

• Reactor power = 100%

• ACB-4 Closed

• Large Break LOCA occurs coincident with a total loss of offsite power Time = 1205

• Keowee Hydro Unit (KHU)-2 Emergency Lockout occurs At Time = 1210 the _(1)_ power path is being used to supply Unit I ECCS systems and _(2)_ LPI pumps are operating.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. Overhead

2. ALL3 B. 1. Overhead

2. ONLY 2 C. 1. Underground

2. ALL3 D. 1. Underground

2. ONLY 2 Page 50 of 75

Oconee Nuclear Station Question:

• 51 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

Time = 1200

• Unit I startup in progress

• RB Purge in progress

• RB activity levels are increasing Time = 1215

• 1 RIA-45 (Norm Vent Gas) found out of service with power available

1) AUTOMATIC termination of RB Purge operation _(1)_ close IPR-1 and IPR-6.

2) At Time = 1215, AUTOMATIC termination of RB Purge due to increasing RB activity 2)_ available.

Which ONE of the following completes the statements above?

A. 1. does

2. is B. 1. does

2. is NOT C. 1. does NOT

2. is D. 1. does NOT

2. is NOT Page 51 of 75

Oconee Nuclear Station Question:

• 52 1LT48 ON$RONRCExamination (1 point)

Given the following plant conditions:

Time = 1200

• Spent Fuel Pool level = 0.1 foot stable Time = 1215

• Spent Fuel Pool level = -3.4 feet decreasing

• IRIA-6 (Spent Fuel Pool Area Monitor) in HIGH alarm

• I RIA-41 (Spent Fuel Pool Building Gas) in HIGH alarm Time = 1216

• An AC is being dispatched to the SEP area to investigate the cause.

• The ACs dose for this year is 525 mrem

• The AC has NOT received a dose extension for this year Which ONE of the following is the MAXIMUM TEDE dose (mrem) allowed for the AC while performing the assigned task?

A. 1475 B. 4475 C. 5,000 D. 10,000 Page 52 of 75

Oconee Nuclear Station Question:

• 53 1LT48 ONSRONRCExarnination (1 point)

Given the following Unit 3 conditions:

Time = 1200

• Reactor power = 100%

• 3A Letdown cooler tube leak rate = 0.1 gpm Time = 1230

• 3A Letdown cooler tube leak rate = 5.0 gpm

1) An increase in LPSW flow to the Component Coolers _(1 )_ required to maintain 3A Letdown Cooler Component Cooling outlet temperature constant from 1200-1230.

2) The MINIMUM RCS letdown temperature that will result in an AUTOMATIC isolation of letdown is _(2)°F.

Which ONE of the following completes the statements above?

A. 1. is

2. 130 B. 1. is

2. 135 C. 1. is NOT

2. 130 D. 1. is NOT

2. 135 Page 53 of 75

Oconee Nuclear Station Question:

• 54 IL T48 ONS RO NRC Examination (1 point)

Given the following plant conditions:

lime = 0400:

• Backup IA Compressors in STBYI

• Primary IA Compressor tripped lime = 0405:

• Instrument Air pressure = 91 psig decreasing At Time = 0405...

1) Auxiliary IA Compressors are (1)

2) Backup IA Compressors are _(2)_.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. Operating

2. OFF B. 1. OFF

2. OFF C. 1. Operating

2. Operating D. 1. OFF

2. Operating Page 54 of 75

Oconee Nuclear Station Question:

• 55 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1200

• Reactor in MODE 5

• RCS Loops dropped

• Pressurizer level = 340 inches stable

• RB Purge in progress

• Reactor Building Normal Sump is being pumped Time = 1205

• I RIA-48 (Reactor Building Iodine) in HIGH alarm

• I RIA-49 (Reactor Building Gas) in HIGH alarm

1) The Containment Evacuation alarm _(1 )_ AUTOMATICALLY actuate.

2) _(2)_ will provide guidance to complete the system isolation initiated by I RIA-49.

Which ONE of the following completes the statements above?

A. 1. will

2. OP/1/A11104/007 (LWD System)

B. 1. will

2. OP/1/NIIO2/014 (RB Purge)

C. I. will NOT

2. OP/I/NIIO4/007 (LWD System)

D. I. will NOT

2. OP/I/NIIO2/014 (RB Purge)

Page 55 of 75

Oconee Nuclear Station Question: 56 1LT48 ONSRONRCExantination (1 point)

Which ONE of the following describes ALL of the MCCs which supply power to Unit ls Control Rod Drive System?

A. 1X9 and 2X2 B. 1X9 and 2X1 C. IXI and 2X9 D. IXI and 3X9 Page 56 of 75

Oconee Nuclear Station Question:

• 57 1LT48 ON$RONRCExamination (1 point)

Given the following Unit I conditions:

• Reactor in MODE 5

• Reactor Vessel level = 80 inches stable

• Reactor Vessel Cold Leg Ultrasonic level NOT available

1) In accordance with SD 1.3.5 (Shutdown Protection Plan), reducing the reactor vessel level to 40 inches _(1 )_ allowed.

2) Improper venting of the RCS results in RCS pressure greater than Containment pressure and LT-5 readings that are _(2)_ than actual.

Which ONE of the following completes the statements above?

A. 1. is

2. greater B. 1. is

2. less C. 1. is NOT

2. greater D. 1. is NOT

2. less Page 57 of 75

Oconee Nuclear Station Question:

• 58 IL T48 ONS R0 NRC Exantin ation (1 point)

Given the following Unit I conditions:

lime = 1200

• Plant is stable following a Reactor trip

• Pressurizer (Pzr) level = 100 inches stable lime = 1230

• IHP-120 fails closed

• Pressurizer level begins decreasing at 1 inch per minute

1) Assuming no operator actions, the EARLIEST time that Pzr heaters will become unavailable is_(1)_.

2) Based on the conditions above, AP/14 (Loss of Normal HPI Makeup And/Or RCP Seal Injection) _(2)_ direct closing IHP-5 while IHP-12f) is being repaired.

Which ONE of the following completes the statements above?

A. 1. 1245

2. will B. 1. 1245

2. will NOT C. 1. 1250

2. will D. 1. 1250

2. will NOT Page 58 of 75

Oconee Nuclear Station Question:

• 59 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Main Steam Line Break on the IA Steam Generator

• Reactor Building pressure = 6.3 psig slowly decreasing

• Indicated I B SC XSUR level = 75 inches decreasing

• ALL Subcooling Margins = 65°F stable I) Currently, actual lB SC level is_(I)_ indicated XSUR level.

2) I B SC level _(2)_ AUTOMATICALLY be controlled at the desired level in accordance with Rule 7 (SC Feed Control).

Which ONE of the following completes the statements above?

A. 1. lower than

2. will B. I. lowerthan

2. will NOT C. I. approximately the same as

2. will D. I. approximately the same as

2. will NOT Page 59 of 75

Oconee Nuclear Station Question:

• 60 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

Current conditions:

• Condenser vacuum = 18.5 inches Hg stable

• ITB de-energized Which ONE of the following is the Steam Generator level that will be automatically maintained?

A. 25 inches Startup Range B. 3OinchesXSUR C. 50% Operating Range D. 240 inchesXSUR Page 60 of 75

Oconee Nuclear Station Question:

• 61 IL T48 ONS R0 NRC Exan;ination (1 point)

Given the following Unit 1 conditions:

Time = 0800:

• Reactor power = 27% stable

• Main Condenser vacuum = 22 inches Hg and degrading Time = 0810:

• Main Condenser vacuum = 20 inches Hg and degrading

1) The EARLIEST time stated above that AP/27 (Loss of Condenser Vacuum) would direct a MANUAL trip of the Main Turbine is (1 )_.

2) After the Main Turbine has been tripped, ICS will maintain Tave at approximately

_(2)_ degrees F.

Which ONE of the following completes the statements above?

A. 1. 0800

2. 555

5. 1. 0800

2. 579 C. 1. 0810

2. 555 D. 1. 0810

2. 579 Page 61 of 75

Oconee Nuclear Station Question:

• 62 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 35% stable

• Air Ejector off-gas activity increasing In accordance with API3I (Primary to Secondary Leakage)...

I) IRL-59 and IRIA-60 _(I)_ be used to determine which SG has the tube leak.

2) I RIA-40 _(2)_ be used to determine Primary to Secondary leak rate.

Which ONE of the following completes the statements above?

A. I. can

2. can B. I. can

2. can NOT C. I. can NOT

2. can D. I. can NOT

2. can NOT Page 62 of 75

Oconee Nuclear Station Question: 63 1LT48 ON$RONRCExan;ination (1 point)

The Limits and Precautions of OP/I -2/All 104/018 (GWD System) state:

1) An isolated GWD tank must be sampled for Hydrogen within _(1)_ hours of isolation.

2) If GWD tank Hydrogen concentration > 3% but <4% volume, concentration must be reduced to < 3% within (2)_ hours.

Which ONE of the following completes the statements above?

A. 1.24

2. 24 B. 1.24

2. 48 C. 1.48

2. 24 D. 1.48

2. 48 Page 63 of 75

Oconee Nuclear Station Question:

• 64 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit I conditions:

• Reactor power= 100%

• Instrument Air (IA) header pressure = 89 psig decreasing

1) Unit _f1)_ AP/22 (Loss of Instrument Air) directs dispatching an operator to perform End. 5.4 (Emergency Start of the Diesel Air Compressors).

2) IF IA header pressure reaches 85 psig the Service Air compressors will _(2)_

the instrument air header.

Which ONE of the following completes the statements above?

A. 1. one

2. manually be aligned to B. 1.two

2. manually be aligned to C. 1. one

2. automatically begin to supply D. 1. two

2. automatically begin to supply Page 64 of 75

Oconee Nuclear Station Question:

• 65 1LT48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• Reactor power = 100%

• An Active fire has been reported in lTD switchgear I) De-energizing lTD switchgear will result in a loss of the (1)_ Motor Driven Emergency Feedwater Pump.

2) In accordance with the Fire Plan, the above lTD switchgear _(2)_ REQUIRED to be de-energized prior to application of water using a fog pattern.

Which ONE of the following completes the statements above?

A. 1.IA

2. is NOT B. 1.IA

2. is C. l.IB

2. is NOT D. 1.IB

2. is Page 65 of 75

Oconee Nuclear Station Question: 66 IL T48 ONS R 0 NRC Examiation (1 point)

Given the following conditions:

• As an extra RO on shift, you have been assigned to escort visitors

1) The MAXIMUM number of visitors you can escort into a Vital Area is _(1)_.

2) If a Site Assembly occurs while you are in a Vital Area with visitors, the public address performed per RPIO/N10001009 (Procedure for Site Assembly) will direct you to assemble at your location _(2)_.

Which ONE of the following completes the statements above?

A. 1.5

2. once you have returned the visitors to Security at the PAP B. 1.5

2. immediately, taking the visitors with you C. 1. 10

2. once you have returned the visitors to Security at the PAP D. 1. 10

2. immediately, taking the visitors with you Page 66 of 75

Oconee Nuclear Station Question: 67 1LT48 ON$RONRCExamination (1 point)

Given the following Unit 3 conditions:

• Reactor in MODE 6

• Refueling in progress

• All SR NIs are operable While refueling the reactor in accordance with OP/31N1502/007 (Operations Defueling/Refueling Responsibilities)...

1) _(1 )_ source range Ni(s) is/are required.

2) The required NI(s) _(2)_.

Which ONE of the following completes the statements above?

A. 1.two

2. can be chosen by a Reactor Operator B. 1. two

2. must be specified by Reactor Engineering C. 1. one

2. can be chosen by a Reactor Operator D. 1. one

2. must be specified by Reactor Engineering Page 67 of 75

Oconee Nuclear Station Question:

• 68 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit 1 condition:

• Reactor in MODE I Which ONE of the following is the MINIMUM Pressurizer level (inches) that would require declaring Tech Spec 3.4.9 (Pressurizer) LCO NOT met in accordance with PT/I /N0600/OOI (Periodic Instrument Surveillance)?

A. 240 B. 260 C. 285 D. 340 Page 68 of 75

Oconee Nuclear Station Question:

• 69 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 100%

Current conditions:

• Keowee Emergency Start channels I and 2 inoperable

1) In accordance with Tech Spec 3.3.21 (EPSL Keowee Emergency Start Function),

the MAXIMUM time allowed to declare both KHUs inoperable is _(1 )_.

2) In accordance with Tech Spec 3.8.1 (AC Systems-Operating), _(2)_ Standby Busfes) is/are required to be energized from a Lee Combustion Turbine via an isolated power path.

Which ONE of the following completes the statements above?

A. 1. immediately

2. BOTH B. 1. 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

2. BOTH C. I. immediately

2. only ONE D. 1. 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

2. only ONE Page 69 of 75

Oconee Nuclear Station Question:

• 70 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit 3 conditions:

• 3A GWD gas tank release in progress

• Release is at 2/3 Station Limit

1) 3RIA-45 (Norm Vent Gas) High and Alert setpoints will be set at_(1)_the normal 1/3 Station Limit setpoint in accordance with PT/O/N0230/OO1 (Radiation Monitor Check).

2)11 3RIA-45 (Norm Vent Gas) High alarm setpoint is reached, the 3A GWD gas tank release _(2)_ automatically terminate.

Which ONE of the following completes the statements above?

A. 1. double

2. will B. 1. double

2. will NOT C. 1. half

2. will D. 1. half

2. will NOT Page 70 of 75

Oconee Nuclear Station Question:

• 71 IL T48 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

• 36 gpm primary to secondary eak in IA SG

• RCS cooldown in progress

• RCS temperature = 395°F decreasing

• The SRO has determined that current method of maintaining SCM is inadequate

1) The reason that the SGTR tab makes every effort to prevent a Reactor trip during shutdown isto minimize the chance of _(1)_.

2) If an operator is dispatched to align Auxiliary Pressurizer Spray during the subsequent RCS cooldown and receives a dose alarm while performing this task, per OMP 1-18 (Implementation Standard During Abnorma and Emergency Events) they _(2)_.

Which ONE of the following completes the statements above?

A. 1. lifting the MSRVs and causing a radiation release to the environment

2. may complete the task while monitoring their dose B. 1. lifting the MSRVs and causing a radiation release to the environment

2. must immediately stop and leave the area C. 1. RCS pressure transients and causing the Primary to Secondary leak rate to increase

2. may complete the task while monitoring their dose D. I RCS pressure transients and causing the Primary to Secondary leak rate to increase

2. must immediately stop and leave the area Page 71 of 75

Oconee Nuclear Station Question: 72 1LT48 ON$RONRClixarnination (1 point)

In accordance with PD-RP-ALL-0001 (Radiation Worker Responsibilities), which ONE of the following states...

1) the MAXIMUM annual Dose Limit (REM) allowed by the NRC?

2) the MAXIMUM lifetime Planned Special Exposure limit (REM) allowed by the NRC?

A. 1.5

2. 25 B. 1.5

2. 50 C. 1.2

2. 25 D. 1.2

2. 50 Page 72 of 75

Oconee Nuclear Station Question:

• 73 1LT48 ON$RONRCExarnination (1 point)

Given the following Unit I conditions:

Initial conditions:

• Reactor power = 90% slowly decreasing

• SG Primary to Secondary leak rate = 6 gpm stable

• AP/31 (Primary to Secondary Leakage) in progress

• Unit shutdown in progress Current conditions:

• Reactor power = 60% slowly decreasing

• SG Primary to Secondary leak rate = 28 gpm slowly increasing Which ONE of the following describes the actions required in accordance with plant procedures?

A. Continue unit shutdown using AP/31 B. Exit API3I and go directly to SGTR tab C. Exit, perform IMAs, then go to SGTR tab D. Perform AP/31 in parallel with performing the SGTR tab Page 73 of 75

Oconee Nuclear Station Question:

• 74 IL T48 ONS R 0 NRC Examination (1 point)

Given the following Unit 1 conditions:

• Reactor tripped from 100% power

• The following Statalarms actuate:

ISA-I/C-Il (ES Channel 7 Trip)

ISA-l/D-Il (ES Channel 8 Trip)

- I SA-2/C-4 (RC Pressurizer Level Emerg High/Low)

ISA-2/C-8 (AFIS Header A Initiated)

- ISA-2/D-5 (HP LDST Level Interlock Initiated)

- I SA-8/A-3 (FDWPT A Trip)

- ISA-8/A-6 (FDWPT B Trip)

Which ONE of the following emergency procedures has the highest priority?

A. EOP Enclosure 5.1 (ES Actuation)

B. Rule 5 (Main Steam Line Break)

C. EOP Enclosure 5.5 (Pzr and LDST Level Control)

D. Rule 3 (Loss of Main or Emergency Feedwater)

Page 74 of 75

Oconee Nuclear Station Question:

• 75 IL T48 ONS R0 NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

• Reactor power = 100%

• Both Main Feedwater pumps trip Current conditions:

• REACTOR TRIP pushbutton has been depressed

• Reactor power = 3% slowly decreasing Which ONE of the following describes the NEXT action required in accordance with EOP Immediate Manual Actions?

A. Perform Rule I B. Verify all turbine stop valves closed C. Verify RCP seal injection available D. Depress the Turbine TRIP pushbutton Page 75 of 75

Examination KEYfor: 1LT48 ONS RO NRC Examina Question Answer Number I B 2 D 3 B 4 D 5 D 6 A 7 B 8 B 9 B 10 A II C 12 A 13 A 14 B 15 C 16 A 17 C 18 D 19 C 20 A 21 A 22 B 23 C 24 B 25 D Printed 12/15/2015 11:48:12AM Page 1 of3

Examination KEYfor: IL T48 ONS R 0 NRC Examina Question Answer Number 26 D 27 B 28 A 29 C 30 B 31 C 32 D 33 A 34 A 35 D 36 C 37 C 38 A 39 C 40 A 41 A 42 B 43 C 44 A 45 A 46 D 47 C 48 C 49 A 50 B Printed 12/15/2015 11:48:13 AM Page 2 of3

Examination KEYfor: 1LT48 ONSRONRCExamina Question Answer Number 51 C 52 C 53 B 54 D 55 A 56 B 57 C 58 D 59 B 60 B 61 B 62 C 63 B 64 D 65 A 66 B 67 B 68 B 69 A 70 B 71 A 72 A 73 B 74 B 75 D Printed 12/15/2015 11:48:13 AM Page 3 of3

OCONEE 2015-302 RO Written Exam References

1. Question 10: EP/1/N1800/001 Enclosure 5.21, Full Range SG Level For Water In Steam Lines.

2. Question 16: AP/1/N1700/034 Enclosure 5.1, Generator Capability Curve.