Text

Exam 2014-301 Draft RO Written Exam
	ML15092A733
Person / Time
Site:	Oconee
Issue date:	04/02/2015
From:	; Division of Reactor Safety II
To:	;
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	Download: ML15092A733 (84)
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ES-401 Site-Specific RO Written Examination Form ES-401-7 Cover Sheet U.S. Nuclear Regulatory Commission Site-Specific RO Written Examination Applicant Information Name:

Date: 06/18/2014 Facility/Unit: Oconee Region: I E ii iii E IV E Reactor Type: WE CE E BW GE E Start Time: Finish Time:

Instructions Use the answer sheets provided to document your answers. Staple this cover sheet on top of the answer sheets. To pass the examination, you must achieve a final grade of at least 80D0 percent. Examination papers will be collected 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months after the examination begins.

Applicant Certification All work done on this examination is my own. I have neither given nor received aid.

Applicants Signature Resu Its Examination Value 75 Points Applicants Score Points Applicants Grade Percent

Oconee Nuclear Station Question: I 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Reactor power = 100% stable

1) 1 RC-66 (PORV) will OPEN if the I RC-66 pilot valve solenoid is inadvertently (1)

2) If I RC-66 fails OPEN and NO operator action is taken, the reactor will trip on (2) RCS pressure A. 1. energized

2. Low B. I. energized 2 Variable Low C. 1. de-energized

2. Low D. I. de-energized

2. Variable Low Page 1 of 75

Oconee Nuclear Station Question: 2 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Time = 1700

Reactor power = 100%

Time = 1701

Reactor tripped due to a SBLOCA Time= 1706

RCS pressure = 425 psig slowly decreasing

All SCMs = 0°F and stable

HPI headerAflow=478gpm and stable

IA and lB HPI pumps operating

1C HPI pump breakerfailed open Which ONE of the following describes what valve must be opened and what flow limit is in effect in accordance with Rule 2 (Loss of SCM)?

A. Open I HP-409 and ensure total HPI flow is 950 gpm B. Open 1 HP-409 and ensure total HPI flow is 750 gpm C. Open 1 HP-41 0 and ensure total HPI flow is 950 gpm D. Open 1 HP-41 0 and ensure total HPI flow is . 750 gpm Page 2 of 75

Oconee Nuclear Station Question:

3 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit I conditions Initial conditions

Time = 0400

Reactor power = 100%

Current conditions:

Time=0415

ISA-02/D-4 (RC PRESS EMERG LOW) actuated

RCS pressure = 520 psig decreasing

ONLY ES Channels I and 2 actuated

1) The HIGHER pressure that will result in a RCS Low Pressure reactor trip is (1)

2) In accordance with EOP Enclosure 5.1 (ES Actuation) (2)

Which ONE of the following completes the statements above?

A. 1. 1810 psig

2. Diverse LPI must be placed in override B. 1. 1810 psig

2. ES Channels 3 and 4 trip push buttons must be depressed C. 1. l85Opsig

2. Diverse LPI must be placed in override D. 1. 1850 psig

2. ES Channels 3 and 4 trip push buttons must be depressed Page 3 of 75

Oconee Nuclear Station Question: 4 IL T45 ONS RO NRC Examination (1 point)

Given the following Unit 2 conditions:

Reactor power = 100%

2HP-31 (RCP Seal Flow Control) failed CLOSED

ALL individual RCP seal return valves CLOSED

2CC-8 (CC Return Block) failed CLOSED

1) 2HP-21 will (1)

2) In accordance with 2AP/14 (Loss of HPI Normal Makeup and/or Seal Injection), the operator will be directed to (2)

Which ONE of the following completes the statements above?

A. 1. remain OPEN

2. re-establish RCP seal injection flow by directing that 2HP-140 (RCP Seal Control Bypass) be opened B. 1. automatically CLOSE

2. re-establish RCP seal injection flow by directing that 2HP-140 (RCP Seal Control Bypass) be opened C. 1. remain OPEN

2. trip the reactor, and then secure ALL RCPs immediately D. 1. automatically CLOSE

2. trip the reactor, and then secure ALL RCPs immediately Page 4 of 75

Oconee Nuclear Station Question:

5 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

IHP-31 failed CLOSED

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

IHP-31 has been repaired

Seal injection flow is being re-established to the RCP seals

1) RCP seal injection flow is re-established slowly to prevent thermal shock and possible damage to the RCP (1)

2) In accordance with AP/14, (2) is/are throttled opened to re-establish RCP seal injection flow.

Which ONE of the following completes the statements above?

A. I thermal barrier

2. IHP-31 B. 1. thermal barrier

2. the individual RCP Seal Injection Throttle valves C. 1. seals

2. IHP-31 D. 1. seals

2. the individual RCP Seal Injection Throttle valves PageS of 75

Oconee Nuclear Station Question: 6 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

Heatup in progress

LPI in High Pressure mode Current conditions:

I LP-12 is inadvertently closed and will NOT open

AP/26 (Loss of Decay Heat Removal) initiated I) AP/26 will direct aligning LPI in the (1) Mode to restore RCS cooling.

2) When LPI flow is restored above, flow will be entering the reactor vessel via the (2)

Which ONE of the following completes the statements above 9

A. 1. Switch over

2. A CFT nozzle ONLY B. I. Switchover

2. A and B nozzles C. I. Series

2. A CFT nozzle ONLY D. I. Series

2. A and B nozzles Page 6 of 75

Oconee Nuclear Station Question:

7 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

IA and I B Letdown Coolers in service Current conditions:

IA Letdown Cooler is removed from service by the RO in the control room

1) CCflowtothe lB Letdown Coolerwill (1)

2) If letdown temperature increases, control rods will (2) as a result of the reactivity change.

Which ONE of the following completes the statements above?

A. 1. stay the same

2. insert B. 1. stay the same

2. withdraw C. 1. increase

2. insert D. 1. increase

2. withdraw Page 7 of 75

Oconee Nuclear Station Question:

8 ILT4S ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Time =0400

Reactor power = 100%

Current conditions:

Time =0401

A transient occurs

RCS pressure decreased to 2141 psig

RCS pressure = 2142 psig slowly increasing Which ONE of the following lists ALL of the Pzr heater banks that are energized at 0401?

A. Bank1ONLY B. Banks 1 and 2 ONLY C. Banks I and 3 ONLY D. Banksl,2,3and4 Page 8 of 75

Oconee Nuclear Station Question: 9 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions Initial conditions

Time =0400

Reactor power = 100%

Current conditions:

Time =0405

ITA lockout occurs

Reactor power = 90% decreasing

ONLY one RD is currently in the Unit 1 horseshoe area

1. At 0405, the RD will be directed to perform (1)

2. When initiated, Rule 1 (2) direct tripping the Main Turbine.

Which ONE of the following completes the statements above?

A. 1. Immediate Manual Actions

2. will B. 1. Immediate Manual Actions

2. will NOT C. 1. Rule I

2. will D. I. Rule 1

2. will NOT Page 9 of 75

Oconee Nuclear Station Question: 10 1LT45 ONS RO NRC Examination (1 point)

Given the foflowing Unit 1 conditions:

Time = 0400

Reactor power = 100%

TDEFDWpumpisOOS Time = 0401

Both Main FDW pumps trip

Loss of lAto 1FDW-316 occurs Time= 0410

IA SG level = 27 inches XSUR increasing

1 B SG level = 36 inches XSUR increasing

1) At0410, (1) SG has indicationsofatube leak.

2) At 0410 and in accordance with Rule 7 the MAXIMUMEFDW flow allowed to each SGis_(2)gpm.

Which ONE of the following completes the statements above?

A. 1.1A

2. 600 B. 1.1A

2. 1000 C. 1.1B

2. 60(

D. 1.11 2.

Page 10 of 75

Oconee Nuclear Station Question: 11 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

. Reactor power = 100%

Current conditions:

Total loss of Main and Emergency Feedwater

Rule 4 (Initiation of HPI Forced Cooling) initiated When Rule 4 is complete (1) RCP(s) and (2)_ HPIP(s) will be operating Which ONE of the following completes the statement above?

A. 1. ONLY one

2. ONLY two B. 1. ONLY one

2. three C. 1.two

2. ONLY two D. 1.two

2. three Page 11 of75

Oconee Nuclear Station Question: 12 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Time =0400

A station blackout has occurred Current conditions:

Time =0730

ICA bus voltage = 105 VDC At 0730 and in accordance with the Blackout tab, 1 CC-8 (1) required to be failed closed because it fails (2) .

Which ONE of the following completes the statement above?

A. 1.isNOT

2. closed on a loss of IA B. 1.isNOT

2. closed on a loss of DC power C. 1.is

2. open on a loss of IA D. 1 is

2. open on a loss of DC power Page 12 of 75

Oconee Nuclear Station Question:

13 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

CT-4 Transformer fans tagged out for repairs

Switchyard Isolation (LOOP) occurs Current conditions:

MFBs energized from Keowee via 01-4

SKI open

1) The HIGHER load allowed in accordance with AP/I I (Enclosure 5. IA, CT-4 Overload limits) is (I)

2) The reason for the above limit is to prevent damage to (2)

Which ONE of the following completes the statements above?

REFERENCE PROVIDED A. 1. 16 MWATTs and 14 MVARs

2. CT-4 B. 1. 16 MWATTs and 14 MVARs

2. SK2 C. I. 14 MWATTs and 10 MVARs

2. CT-4 D. I. I4MWATTsandIOMVARs

2. SK2 Page 13 of 75

Oconee Nuclear Station Question:

14 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

SASS in MANUAL

Pzr level I selected Current conditions:

I KVIA de-energized

1) 1HP-l2Owillthrottle (I)

2) The operator will select Pzr level (2) to restore a valid Pzr level.

Which ONE of the following completes the statements above?

A. 1. open

2. 2 B. 1. open

2. 3 C. 1. closed

2. 2 D. 1. closed

2. 3 Page 14 of 75

Oconee Nuclear Station Question:

15 1LT45 ONSRONRCExamination (1 point)

Given the following plant conditions:

ICA Battery Charger fails

> Output voltage = 0 VDC

ICA Battery voltage = 120 VDC

I DCB Bus voltage = 123 VDC

Unit 2 DCAIDCB Bus voltage 125 VDC

Unit 3 DCAIDCB Bus voltage = 127 VDC Which ONE of the following will automatically supply power to 1 DIA panelboard?

A. 1CA Battery B. Unit 3 DC Bus C. IDCB Bus D. Unit2DCBus Page 15 of 75

Oconee Nuclear Station Question: 16 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

A and B LPSW pumps operating Current conditions:

A LPSW pump trips due to breaker failure

Standby LPSW pump will NOT start

AP124 (Loss of LPSW) initiated

LPSW header pressure deceases to 15 psig and is now increasing

1) ILPSW-1121, 1122, 1123, and 1124 closed ata MAXIMUM LPSWheader pressure of (2) psig decreasing

2) In accordance with AP/24 the above valves closed to - (1)

Which ONE of the following completes the statements above?

A. 1. 18

2. prevent subsequent LPSW pump run out B. 1. 18

2. prevent water hammers in the LPSW system C. 1.25

2. prevent subsequent LPSW pump run out D. 1.25

2. prevent water hammers in the LPSW system Page 16 of 75

Oconee Nuclear Station Question:

17 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Reactor power= 100%

Current conditions:

IA Header pressure =25 psig decreasing

AlA Header pressure = 100 psig stable

Letdown temperature = 131°F stable IHP-5 is (1) because (2)

Which ONE of the following completes the statement above?

A. 1. open

2. it is backed up by Nitrogen B. 1. open

2. it is backed up by AlA C. 1. closed

2. IA Header pressure is low D. 1. closed

2. it closed on high Letdown temperature Page 17 of 75

Oconee Nuclear Station Question:

18 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Reactor trip due to loss of Main Feedwater

Emergency Feedwater is NOT available

Condensate Booster Pump feed has been established

RCS leak = 80 gpm slowly increasing Which ONE of the following describes:

I) actions required by the LOHT tab?

2) the reason for the actions?

A. 1. Reduce running RCPs to one oumr rer loon

2. To reduce heat inputto RCS B. I. Reduce running RCPs to one pump per loop

2. To reduce inventory lost from the RCS leak C. I. Reduce running RCPs to one

2. To reduce heat input to RCS D. I. Reduce running RCPs to one

2. To reduce inventory lostfrom the RCS leak Page 18 of 75

Oconee Nuclear Station Question: 19 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

Current conditions:

Main Turbine has tripped

Reactor power = 48% decreasing

Rule I (ATJVS/UNPP) in progress

IHP-24 will NOT open

1) In accordance with Rule 6, (HPI Pump Throttling Limits) (1)

2) In accordance with Rule 6, (HPI Pump Throttling Limits) the MAXIMUM reactor power which will allow throttling HPI is (2)

Which ONE of the following completes the statements above?

A. 1. total HPI flow must be throttled <950 gpm including seal injection

2. 1%

B. 1. total HPI flow must be throttled <950 gpm including seal injection

2. <5%

C. 1. HPI pump operation is limited to two HPIPs

2. <1%

D. 1. HPI pump operation is limited to two HPIPs 2 5%

Page 19 of 75

Oconee Nuclear Station Question:

20 1LT45 ONSRONRCExamination (1 point)

Unit I plant conditions:

Reactor power = 100%

5ogpdTubeLeak

An increase in activity is reported in Chemical Treatment Pond (CTP) #3 Which ONE of the following describes an event which would cause this increase?

A. I RIA-42 (RCW) activity is increasing and this will increase activity levels in CTP#3.

B. I RIA-31 (LPI Cooler) activity is increasing and this will increase activity levels in CTP#3.

C. 1 RIA-54 (TBS) interlock has failed and the Turbine Building Sump is being continually pumped.

D. I RIA-33 (LW Release) interlock has failed and a Waste Monitor Tank release continues from the Radwaste Building.

Page 20 of 75

Oconee Nuclear Station Question: 21 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 100%

AP/50 (Challenging Plant Fire) has been initiated Current conditions:

AP/50, Section 4G (Unit 1 Control Room Evacuation) in progress

1) Section 4Gwill direct the OATC to (1)

2) The reason the above action is taken is to (2)

Which ONE of the following completes the statements above?

A. 1. take 1 FDW-315 and IFDW-316 to MANUAL and closed

2. ensure flow to the SGs can be controlled from the ASD Panel B. 1. take IFDW-315 and 1FDW-316to MANUAL and closed

2. prevent spurious operation of IFDW-315 and 1 FDW-31 6 due to fire damage C. 1. initiate feeding BOTH SGs to 96% OR.

2. ensure natural circulation develops when the RCPs are secured D. 1. initiate feeding BOTH SGsto 96% O.R.

2. maximize SG inventory prior to losing secondary pumps due to the fire Page 21 of 75

Oconee Nuclear Station Question:

22 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Time =0400

Reactor power = 100%

ISA3/B6 (FIRE ALARM) actuated

The BOP reviews the alarms at the Fire Alarm Control panel Current conditions:

Time =0415

Fire detector at the Unit 1 Main FDW pumps alarms

1) At 0400, the alarm at the Fire Alarm Control panel will be indicated by (1)

2) At0415, 1SA3/B6(FireAlarm) (2)reflash.

Which ONE of the following completes the statements above?

A. 1. a blinking LED ONLY

2. will B. 1. a blinking LED ONLY

2. will NOT C. 1. a blinking LED an audible alarm

2. will D. 1. a blinking LED an audible alarm 2 wilINOT Page 22 of 75

Oconee Nuclear Station Question:

23 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 3 conditions:

Control Room Evacuation complete due to a non-fire event

ASDP has been manned

ASDP indications:

> Turbine Header Pressure = 1011 psig and slowly decreasing TBVs demand is 12% in Automatic and decreasing

> RCS T Hot = 560° F and slowly decreasing Pzr Level = 140 inches increasing

> SG SU levels 48 inches and increasing

> ALL RCPs are operating Which ONE of the following describes the required action(s) (if any) per AP/8 (Loss of Control Room) and why?

A. NO actions are required, the plant is responding as expected.

B. Take manual control of TBVs to stabilize SG Pressure.

C. Take manual control and cycle 3B HPI pump to stabilize Pzr level.

D. Take manual control of FDW Startup Control Valves and lower SG levels Page 23 of 75

Oconee Nuclear Station Question:

24 IL T45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Reactor Power = 36%

IRIA-40Alertand High Alarm actuated

RC Makeup flow = 85 gpm

Seal Inlet Header flow= 32 gpm

Letdown Flow = 78 gpm

Total Seal Return Flow = 8.5 gpm

Pressurizer level = 220 inches stable

1) (l)_ is required to be entered at this time.

2) The procedure entered above will direct maintaining a Pzr level band of (2)

Which ONE of the following completes the statements above?

A. 1. EOP (Emergency Operating Procedure) SGTR Tab

2. 140 inches 180 inches B. 1. EOP (Emergency Operating Procedure) SGTR Tab

2. 220 inches260 inches C. 1. AP/31 (Primary to Secondary Leakage)

2. 140 inches 180 inches D. 1. AP/31 (Primary to Secondary Leakage)

2. 220 inches260 inches Page 24 of 75

Oconee Nuclear Station Question:

25 ILT4S ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Reactor power = 25% slowly increasing

Turbine trip Current conditions:

Reactor power = 22% decreasing

1) (1) will be used to direct plant activities after the Turbine trip.

2) The expected Steam Generator pressure is (2) psig.

Which ONE of the following completes the statements above?

A. 1. TheUNPPtab

2. 885 B. 1. The UNPP tab

2. 1010 C. 1. AP/1 (Unit Run back)

2. 885 D. 1. AP/1 (Unit Run back)

2. 1010 Page 25 of 75

Oconee Nuclear Station Question: 26 IL T45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions

Turbine Building Flood tab initiated

Main and Emergency Feedwater have been lost

1) In accordance with the TBF tab RCS decay heat will be removed using (1)

2) The above heat removal method is chosen because (2) .

Which ONE of the following completes the statements above?

A. I. HPI Forced Cooling

2. Raw lake water will damage the SGs B. 1. HPI Forced Cooling

2. SSF-ASW suction source is CCW and ALL CCW pumps will be secured C. 1. SSF-ASW

2. of anticipation of losing Condensate Booster Pumps D. 1. SSF.-ASW

2. of anticipation of losing LPSW pumps Page 26 of 75

Oconee Nuclear Station Question:

27 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

C0reSCM=0°F

LOCA Cooldown tab in progress

CETCs = 395°F slowly decreasing

1) In accordance with the LOCA CD tab (1) is required to be opened to establish the normal Boron dilution flow path.

2) The above valve will be operated from the (2) Control Room Which ONE of the following completes the statements above?

A. 1. 1 LP-1 03 (Post LOCA Boron Dilute)

2. Unit 1 B. 1. 1 LP-1 03 (Post LOCA Boron Dilute)

2. SSF C. 1. 1 LP-1 05 (Post LOCA Boron Dilute To LPI Suction)

2. Unit I D. 1. 1 LP-1 05 (Post LOCA Boron Dilute To LPI Suction)

2. SSF Page 27 of 75

Oconee Nuclear Station Question: 28 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Time =0400:00

Reactor power = 100%

1B1 RCPAmps=527 Current conditions:

Time =0400:01

IB1RCPAmps=255 Reactor power will (1) and feedwater will (2) .

Which ONE of the following completes the statement above?

A. 1. decrease

2. re-ratio B. 1. decrease

2. N CT re-ratio C. 1. staythesame

2. re-ratio D. 1. staythesame

2. NOT re-ratio Page 28 of 75

Oconee Nuclear Station Question: 29 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Time =0400

Reactor power = 15%

Current conditions:

Time =0430

RCS temperature = 535°F decreasing

RCS pressure = 2040 psig decreasing

Pzr level = 200 inches decreasing

LDST level = 65 inches decreasing

1) The highest LDST level that will automatically align the HPI pumps suction to the BWST is (1) inches.

2) At 0430, the reactor (2) automatically tripped on low RCS pressure.

Which ONE of the following completes the statements above?

A. 1.60

2. has B. 1.60

2. has NOT C. 1.40

2. has D. 1.40

2. has NOT Page 29 of 75

Oconee Nuclear Station Question: 30 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Reactor in MODE 6

LPI is aligned in the Normal Decay Heat Removal flowpath

LT-5 = 65 stable I) Aligning LPI to the Purification Demineralizers (I) allowed at this

2) IC LPI Pump (2) the desired LPI pump to use during this alignmenl Which ONE of the following completes the statements above?

A. 1.is

2. is B. I.is

2. is NOT C. I. is NOT

2. is D. I. is NOT

2. is NOT Page 30 of 75

Oconee Nuclear Station Question: 31 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit I plant conditions:

Reactor in MODE 5

LPI in normal DHR alignment (I) temperatures will be used to ensure compliance with Tech Spec allowed cooldown rates and (2) will be used to adjust cooldown rate.

Which ONE of the following completes the statement above?

A. I. LPI Cooler Outlet

2. LPSW flow B. I. LPI Cooler Outlet

2. LPI flow C. I. Core Exit Thermocouples

2. LPSW flow D. I. Core Exit Thermocouples

2. LPI flow Page 31 of 75

Oconee Nuclear Station Question:

32 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions

RCS cooldown in progress

RCS pressure = 1780 psig slowly decreasing The HPI ES bypass permissive is activated ata MA)(IML.JM RCS pressure of _(1) and (2) require manual actions to be re-instated when RCS pressure is returned to normal operating pressure Which ONE of the following completes the statement above?

A. 1. 1715

2. will B. 1. 1715

2. will NOT C. 1. 1740

2. will D. 1. 1740

2. will NOT Page 32 of 75

Oconee Nuclear Station Question: 33 ILT4S ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Reactor power 100%

Current conditions:

ES Channels 1 8 actuated

EOP Enclosure 5.1 (ES Actuation) initiated

HPI Flow Train A = 520 gpm

HPI Flow Train B = 468 gpm

RC Make Up Flow= 160 gpm

Seal Inlet Header Flow = 32 gpm In accordance with the EOP is/are required to be throttled to prevent HPI pump runout Which ONE of the following completes the statement above?

A. 1 HP-26 ONLY B. 1 HP-27 ONLY C. 1 HP-26 and 1 HP-27 D. NO valve Page 33 of 75

Oconee Nuclear Station Question:

34 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

OP/I/All 1 03/002, (Filling and Venting RCS) Enclosure 4.14 (Establishing Pzr Steam Bubble And RCS Final Vent) in progress

Quench Tank level =82 inches

Quench Tank pressure = 0.5 psig

The Pressurizer is vented to the Quench Tank for 30 minutes Which ONE of the following describes QT parameters that would indicate that Pzr Steam Bubble Formation is complete?

QT level (inches) QT pressure (psig)

A. 82.1 0.6 B. 84.1 0.6 C. 82.1 2.5 D. 84.1 2.5 Page 34 of 75

Oconee Nuclear Station Question: 35 1LT45 ONSRO NRC Examination (1 point)

Which ONE of the following will result in the Standby Component Cooling pump receiving an automatic start signal?

A. CC Total Flow = 568 gpm B. CRD Outlet HDR Flow = 136 gpm C. Component Cooling Pump Pressure = 95 psig D. ONE Main Feeder Buses de-energized for 21 seconds Page 35 of 75

Oconee Nuclear Station Question:

36 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

BWST Temperature = 85°F

LDST Temperature = 105°F

RCS pressure = 685 psig

1) The (1) isan allowable suction source for Auxiliary Pressurizer Spray.

2) The reason for the applicable limit in accordance with SLC 16.5.8 (Pressurizer) is to reduce (2)

Which ONE of the following completes the statements above?

A. 1. LDSTONLY

2. thermal stress on the Pzr spray nozzle B. 1. LDSTortheBWST

2. thermal stress on the Pzr spray nozzle C. 1. LDSTONLY

2. the potential for exceeding Pzr heater capacity D. 1. LDSTortheBWST

2. the potential for exceeding Pzr heater capacity Page 36 of 75

Oconee Nuclear Station Question: 37 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Reactor power 100%

IRC-1 failed OPEN

RCS pressure =2150 psig decreasing

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

IRC-3failedOPEN

1) RCS pressure will (1)_

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

Which ONE of the following completes the statements above?

A. 1. continue to decrease below the reactor trip setpoint

2. IA1 RCP ONLY B. 1. continue to decrease below the reactor trip setpoint

2. IAI and 1A2 RCP C. 1. be maintained above the reactor trip setpoint by the Pzr heaters

2. 1A1 RCP ONLY D. 1. be maintained above the reactor trip setpoint by the Pzr heaters

2. 1A1 and 1A2 RCP Page 37 of 75

Oconee Nuclear Station Question: 38 1LT45 ONS RO NRC Examination (1 point)

Which ONE of the following would result in a trip of the ID RPS Channel AND the 1D CRD Breaker?

A. 1 D RPS channel Manual Trip keyswitch is placed in the trip position B. Reactor Building Pressure Switch in the 1 D RPS channel fails OPEN C. Loss of I DCB pan elboard D. Loss of the IKVID panelboard Page 38 of 75

Oconee Nuclear Station Question: 39 ILT4S ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Reactor power = 100%

IA RPS Thot RTD fails HIGH Which ONE of the following describes:

1) ALL RPS trips affected by the failure?

2) the action preferred, in accordance with OP/I/All 105/0 14 (Control Room Instrumentation Operation And Information)?

A. 1. RCS High Outlet Temperature ONLY

2. Place MANUAL TRIP Keyswitch in TRIP.

B 1 RCS High Outlet Temperature ONLY

2. Place affected RPS Channel MANUAL BYPASS keyswitch in BYP.

C. I. RCS High Outlet Temperature and RCS Variable Low Pressure

2. Place MANUAL TRIP Keyswitch in TRIP.

D. 1. RCS High Outlet Temperature and RCS Variable Low Pressure

2. Place affected RPS Channel MANUAL BYPASS keyswitch in BYP.

Page 39 of 75

Oconee Nuclear Station Question: 40 IL T45 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

Main Steam Line break inside the Reactor Building

RCS pressure decreased to 974 psig and is now increasing

Reactor Building pressure increased to 34 psig and is now decreasing Which ONE of the following lists ALL ECCS systems that have actuated?

A. HPI ONLY B. HPI AND Core Flood ONLY C. HP! AND LPI ONLY D. HPI, LPI, AND Core Flood Page 40 of 75

Oconee Nuclear Station Question: 41 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 3 conditions Initial conditions:

Time =0400

Reactor power = 100%

3A HPI Pump operating Current conditions:

Time = 0401

Reactor tripped due to SBLOCA

ES Digital Channels 2, 4, and 6 failed to automatically actuate At 0405, which ONE of the following lists only safety related components that will be in their ES condition?

ASSUME NO OPERATOR ACTIONS A. KHU#2 / 3HP-5 B. 3BHPI Pump / 3PR-10 C. KHU #2 / 3A LPI Pump D. 3B HPI Pump / 3LPSW-24 Page 41 of 75

Oconee Nuclear Station Question: 42 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

Reactor power = 50% stable Current conditions:

LBLOCA occurs

ITC de-energized Which ONE of the following describes the status of the below listed Reactor Building Cooling Units five (5) minutes after ES actuates?

ASSUME NO OPERATOR ACTIONS IARBCU IBRBCU A. LOW LOW B. LOW OFF C. OFF LOW D. OFF OFF Page 42 of 75

Oconee Nuclear Station Question: 43 1LT45 ONS RO NRC Examination (1 point)

Given the following plant conditions:

SBLOCA has occurred on Unit 1 Reactor Building Pressure = 11 .2 psig slowly decreasing I Unit 2 Reactor Power= 100%

Which ONE of the following describes the actions directed by Enclosure 5 1 (ES Actuation) to ensure the required LPSW flow exists in the 1A LPI cooler 9

A. Place ILPSW-251 in Failed Open ONLY B. Place ILPSW-251 in Failed Open AND fully open 1LPSW-4 C. Place 1LPSW-251 in Failed Open AND Throttle LPSW flow to approximately 3000 gpm using 1 LPSW-4 D. Place ILPSW-251 in Failed Open AND Throttle LPSW flow to approximately 5200 gpm using I LPSW-4 Page 43 of 75

Oconee Nuclear Station Question: 44 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Reactor power = 75% stable Current conditions:

IATBVsfaiIOPEN

1) (1) will be used to mitigate this event.

2) Reactor power will increase and then stabilize at (2)

Which ONE of the following completes the statements above?

A. 1. OPIIIAI1IO6IOOI (Turbine Generator)

2. a higher power level B. 1. OPIIIAIIIO6IOOI (Turbine Generator)

2. approximately the pre-transient value C. 1. APII/A/17001028 (ICS Instrument Failures)

2. a higher power level D. 1. APII/A117001028 (ICS Instrument Failures)

2. approximately the pre-transient value Page 44 of 75

Oconee Nuclear Station Question: 45 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit 3 conditions:

Time = 0400

Reactor power = 70% stable

3B2 RCP trips At 0430, which ONE of the following describes the response in FDW pump suction flows that has occurred over the previous 30 minutes?

A. 3A FDW Pump suction flow has increased and 3B FDW Pump suction flow has decreased B. 3B FDW Pump suction flow has increased and 3A FDW Pump suction flow has decreased C. 3A and 3B FDW Pump suction flows have decreased D. 3A 3B FDW Pump suction flows remain unchanged Page 45 of 75

Oconee Nuclear Station Question: 46 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Unit cooldown in progress

IA and I B MD EFDWPs operating

EOP Enclosure 5.9 (Extended EFDW Operation) in progress Current conditions:

UST level = 3.5 feet decreasing In accordance with EOP Enclosure 5.9,

1) both MD EFDWPs are required to be secured at the HIGHER UST level of less than _jI_.

2) vacuum is (2)to be broken prior to the MD EFDWPs taking suction on the H otwe II.

Which ONE of the following completes the statements above?

A. 1. one foot

2. required B. 1. one foot

2. NOT required C. 1. one inch

2. required D. 1. one inch

2. NOT required Page 46 of 75

Oconee Nuclear Station Question: 47 ILT4S ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Reactor power = 100%

1 DCA Bus Voltage = 125 VDC

I DCB Bus Voltage = 126 VDC

2DCA Bus Voltage = 127 VDC

2DCB Bus Voltage = 127 VDC Current conditions:

IXS1 incoming feederbreakertrips Based on the current conditions, which ONE of the following is correct re ling the DC power systems?

ASSUME NO OPERATOR ACTIONS A. 1 DCA will be powered from the standby charger B. 1DCB loads will be powered from Battery ICB C. 1 KX lnverter will be powered from I DCB D. I DIC Inverter will be powered from I DCB Page 47 of 75

Oconee Nuclear Station Question: 48 1LT45 ONS RO NRC Examination (1 point)

1) 600 volt MCC 1XS2 is normally powered from a power string that begins at 4 KV switchgear (1)

2) If the normal power supply to IXS2 is lost, the alternate power supply (2) automatically energize IXS2.

Which ONE of the following completes the statements above?

A. 1.1TD

2. will B. 1.1TD

2. will NOT C. 1.1TE

2. will D. 1.1TE

2. will NOT Page 48 of 75

Oconee Nuclear Station Question: 49 1LT45 ONSRONRCExamination (1 point)

Station initial conditions:

All three units Reactor power = 1 00%

Current conditions:

All Units 41 60v Main Feeder Busses are de-energized

Unit 1, 2, and 3 EOP Blackout tabs in progress Based on the above conditions, which ONE of the following describes the required status of Unit I Essential Inverters per the EOP Enclosure 5.38 (Restoration of Power) and why?

Unit ls Essential Inverters...

A. remain energized to provide power to ES channels.

B. remain energized to provide control power to 4160v.

C. are de-energized to prevent inverter damage.

D. are de-energized to extend available battery life.

Page 49 of 75

Oconee Nuclear Station Question: 50 ILT4S ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

. Time =0400

Reactor power = 100%

SLlandSL2closed

ACB-4 closed Current conditions:

Time = 0401

RCS pressure = 200 psig decreasing

Switchyard Isolation occurs

Keowee Unit 2 Emergency Locked out IA and 1 B LPI pumps will be .

Which ONE of the following completes the statement above?

A. manually energized from CT-5 B. automatically energized from CT-5 C. manually energized from Keowee Unit I D. automatically energized from Keowee Unit I Page 50 of 75

Oconee Nuclear Station Question: 51 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

Time=1200

Reactor power = 35% stable

lAsteamgeneratortubeleak=2.i gpd stable

RCS activity = 0.25 pCi/mI DEl increasing Current conditions:

Time=1400

NO change in 1A SG tube leak rate

RCS activity = 0.65 pCi/mi DEl and increasing Which ONE of the following describes the response of the radiation monitors between 1200 and 14009 A. 1 RIA-16 (Main Steam Line Monitor) and 1RIA-40 (CSAE Off-gas) increased.

B. 1 RIA-16 (Main Steam Line Monitor) increased while 1 RIA-40 (CSAE Off-gas) remained constant.

C. 1 RIA-59 (N-i 6 monitor) and I RIA-40 (CSAE Off-gas) increased.

D I RIA-59 (N-i 6 monitor) increased whilel RIA-40 (CSAE Off-gas) remained constant Page 51 of 75

Oconee Nuclear Station Question: 52 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit 1 and 2 conditions:

Initial conditions:

A & B LPSW pump operating Current conditions:

I SA9/A9 LPSW HEADER A PRESS LOW

A LPSW pump amps = 15 35 fluctuating

B LPSW pump amps 55 stable

LPSW HDR PRESS = rapidly fluctuating between 60 & 75 psig

1) The A LPSW pump (1)

2) AP/24 (Loss of LPSW) will direct (2)

Which ONE of the following completes the statements above?

A. 1. is cavitating

2. placing the Unit 1/2 STANDBY LPSW PUMP AUTO START CIRCUIT in DISABLE then stopping LPSW Pump A and starting LPSW Pump C B. 1. has a sheared shaft

2. placing the Unit 1/2 STANDBY LPSW PUMP AUTO START CIRCUIT in DISABLE then stopping LPSW Pump A and starting LPSW Pump C C. 1. iscavitating

2. starting LPSW Pump C then stopping LPSW Pump A D. 1. has a sheared shaft

2. starting LPSW Pump C then stopping LPSW Pump A Page 52 of 75

Oconee Nuclear Station Question: 53 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit I conditions:

Initial conditions:

Time = 0400

Reactor power = 100%

Current conditions:

Time=0415

RCS pressure = 248 psig decreasing

1) At 0415, (1) LPSW pumps will be supplying loads on Unit 1.

2) The B LPSW pump is powered from (2)

Which ONE of the following completes the statements above?

A. 1. ONLYtwo

2. lTD ONLY B. 1. ONLYtwo

2. ITDor2TD C. 1. three

2. lTD ONLY D. 1. three

2. 1TDpj2TD Page 53 of 75

Oconee Nuclear Station Question: 54 1LT45 ONS RO NRC Examination (1 point)

Given the following plant conditions:

Large IA leak occurs

. Service air header pressure = 87 psig decreasing

. Turbine Building air header pressure per gage below BLDG 180 140 120 100 80 60 40 20 Which ONE of the following describes the air compressors that will be operating?

The Primary IA Compressor AND...

A. Diesel Air Compressors ONLY B. Diesel Air Compressors AND AlA Compressors C. AlA Compressors AND Backup IA Compressors D. Backup IA Compressors ONLY Page 54 of 75

Oconee Nuclear Station Question:

55 1LT45 ONSRONRCExamination (1 point)

Given the foflowing Unit 1 conditions:

Initial conditions:

Time =0400

Reactor power = 100%

Current conditions:

Time =0415

RCS pressure = 1500 psig decreasing

RB pressure = 1.2 psig increasing

EOP Enclosure 5.1 (ES Actuation) initiated

1) At 0415, 1LPSW-l5is (1)

2) If closed due to ES actuation and in accordance with Enclosure 5.1, prior to opening 1 LPSW-1 5, the associated (2)

Which ONE of the following completes the statements above?

A. 1. open

2. voter is taken to override B. 1. open

2. ES channel(s) is/are taken to manual C. 1. closed

2. voter is taken to override D. 1. closed

2. ES channel(s) is/are taken to manual Page 55 of 75

Oconee Nuclear Station Question: 56 ILT4S ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 0400

Reactor trip from 100% power due to a loss of offsite power

Forced Cooldown tab in progress

Tcold = 5 50°F stable Time = 0500

RCS pressure = 2155 psig stable

A Natural Circulation cooldown is initiated

1 RC-1 59 (RX Vessel Head Vent) will NOT open

1) At 0400 and in accordance with the FCD tab, the MAXIMUM allowable cooldown rate is (2)

2) During the cooldown, Reactor Vessel head voids (1) expected to occur.

Which ONE of the following completes the statements above?

A. 1. <50°F/hr

2. are B. 1. <50°F/hr

2. are NOT C. 1 <50°F/

/2hr 1

2. are D. 1. 150°F/

h 2

/ r

2. are NOT Page 56 of 75

Oconee Nuclear Station Question: 57 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

A LOCA occurs from 100% power

Multiple equipment failures have occurred Current conditions:

LOCA CD tab in progress

A significant increase is noted on the Source Range

1) AtransfertothelCCtabis required (2)

2) A possible cause for the increase of the Source Range is significant voiding in the (1)

Which ONE of the following completes the statements above?

A. 1. when ANY SCM indicates superheat

2. core B. 1. when ANY SCM indicates superheat

2. downcomer C. 1. ONLY when the Core SCM indicates superheat

2. core D. 1. ONLY when the Core SCM indicates superheat

2. downcomer Page 57 of 75

Oconee Nuclear Station Question:

58 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Reactor power = 100%

1) ICS AUTO power to the TBVs is supplied by (1) .

2) ICS HAND power to the TBV5 is supplied by (2)

Which ONE of the following completes the statements above?

A. 1.lKl

2. 1KU B. 1.lKl

2. 1KX C. 1.IKU

2. 1KI D. 1.1KU

2. 1KX Page 58 of 75

Oconee Nuclear Station Question:

59 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Refueling in progress

RB Purge in operation

1) If the RB Main Purge fan trips due an RIA alarm, Spent Fuel Pool level will (1)

2) When the RB Main Purge fan trips above, PR valves (2) will automatically close.

Which ONE of the following completes the statements above?

A. 1. increase

2. 25 ONLY B. 1. increase

2. 16 C. 1. decrease

2. 25 ONLY D. 1. decrease

2. 16 Page 59 of 75

Oconee Nuclear Station Question: 60 1LT45 ONSRONRCExamination (1 point)

Given the following plant conditions:

Initial conditions:

Time =0400

A SEP pump operating Current conditions:

Time =0401

Spent Fuel Storage Cask has been dropped in Unit 1&2 SEP

Spent Fuel damage is visible

RIA-6 and RIA-41 HIGH alarm actuates

Spent Fuel Pool level = -3.5 feet decreasing

1) The Unit (1) _Reactor Building Purge filters will be used to reduce off site re leases.

2) At 0401 the A SFP pump is (2)

Which ONE of the following completes the statements above?

A. 1.1 2.ON B. 1.1

2. OFF C. 1.2 2.ON D. 1.2

2. OFF Page 60 of 75

Oconee Nuclear Station Question: 61 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Reactor power = 100%

1SA-02/B-11 (ICS AUTO POWER FAILURE)

As a result of the above failure:

1) 1 HP-120 is operable in _(1)

2) The Turbine Bypass Valves are operable in (2)

Which ONE of the following completes the statements above?

A. 1. HANDONLY

2. HAND orAUTO B. 1. HANDONLY

2. HAND ONLY C 1 HAND 0rAUTO

2. HAND orAUTO D. 1. HAND orAUTO

2. HAND ONLY Page 61 of 75

Oconee Nuclear Station Question:

62 1LT45 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Time = 1200:00

Reactor power = 80% stable

IA and lB CBP operating Time= 1201:00

IACBPtrips

Feedwater Pump suction pressure = 225 psig slowly decreasing Time = 1203:00

Feedwater Pump suction pressure = 220 slowly increasing Which ONE of the following describes the:

I) runback rate (%Imin) inserted at 1201:00 to lOS?

2) procedure that will be directed by the Procedure Director at 1203:00?

A. 1.15

2. AP/1/A/I 700/001 (Unit Runback)

B. 1.15

2. EOP C. 1.20

2. AP/1/A11700/001 (Unit Runback)

D. 1.20

2. EOP Page 62 of 75

Oconee Nuclear Station Question:

63 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Reactor power = 63% decreasing

Control Rod Group 5 Rod 6 Asymmetric Alarm light on the P1 panel is lit

Control Rod Group 5 Rod In Limit light on the P1 panel is lit

Asymmetric Fault light on Diamond Panel is lit

1) The Asymmetric Alarm light indicates that the rod is misaligned from the group averagebyaMlNiMUMof (1) inches.

2) Plant conditions for an Asymmetric runback to occur (2) met.

Which ONE of the following completes the statements above?

A. 1. seven

2. are B. I. seven

2. are NOT C. 1. nine

2. are D. I. nine

2. are NOT Page 63 of 75

Oconee Nuclear Station Question:

64 ILT4S ONSRO NRC Examination (1 point)

Given the foflowing Unit I conditions:

Reactor power = 32% decreasing

A unit shutdown is in progress due to a primary to secondary leak

1) (1) provides the operator with a readout in GPM.

2) At this time, the above RIA (2) procedurally allowed to be used to determine the primary to secondary leak rate.

Which ONE of the following completes the statements above?

A. 1. 1 RIA-1 6 (Main Steam Line Monitor)

2. is B. 1. 1 RIA-1 6 (Main Steam Line Monitor)

2. is NOT C. 1. 1RIA-59(N-16 monitor)

2. is D. 1. IRIA-59(N-16 monitor)

2. is NOT Page 64 of 75

Oconee Nuclear Station Question:

65 ILT4S ONSRONRCExamination (1 point)

Given the foflowing Unit 2 conditions:

Initial conditions:

Reactor power = 100%

A and B LPSW pumps operating

Switchyard Isolate occurs Current conditions:

Unit 2 MFB I & 2 energized

1) Unit 1 & 2 LPSW is supplied via the ECCW (1)

2) A and B LPSW pumps will restart (2) after power is restored.

Which ONE of the following completes the statements above?

A. 1. flrstsiphon

2. immediately B. 1. second siphon

2. immediately C. 1. first siphon

2. 10 seconds D. 1. second siphon

2. 10 seconds Page 65 of 75

Oconee Nuclear Station Question:

66 1LT45 ONSRONRCExamination (1 point)

Given the following plant conditions:

B Shift is on duty

The OATC asks to be temporarily relieved to go to the canteen.

The BOP has previously received a formal turnover on the unit.

Which ONE of the following describes whose permission is required to turn over the OATC position to the BOP and items that are required to be included in the turnover per OMP 2-01 (Duties and Responsibilities of On-Shift Operations Personnel)?

A. Control Room SRO / review of Ops Guides and outstanding R&Rs B. Control Room SRO / review RCS temperature/pressure and operating band C. Any B shift SRO / review of Ops Guides and outstanding R&Rs D. Any B shift SRO / review RCS temperature/pressure and operating band Page 66 of 75

Oconee Nuclear Station Question: 67 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 0400

Generator output = 850 MWe stable

Generator Hydrogen pressure = 50 psig stable Time = 0500

Generator output = 600 MWe stable

Generator Hydrogen pressure = 30 psig stable At 0500 and in accordance with OP/1/A111061001 End. 4.5 (Capability Curve), the MAXIMUM MVARs allowed is approximately Which ONE of the following completes the statement above?

REFERENCE PROVIDED A. 325 B. 340 C. 370 D. 450 Page 67 of 75

Oconee Nuclear Station Question: 68 1LT45 ONSRONRCExamination (1 point)

Which ONE of the following is the LOWER limit on RCS activity that would require entry into AP/21 (RCS Activity)?

A. Xe-I 33 = 0.25 Ci/gm B. Xe-i 33 = 1.0 pCi/gm C. DEl = 0.25 pCi/gm D. DEI=i.OpCi/gm Page 68 of 75

Oconee Nuclear Station Question: 69 1LT45 ONSRO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 0000

Unit shutdown in progress

Reactor power = 2.5% decreasing Time = 2300

RCS Tave = 240°F decreasing

1) At0000thereactorisin MODE (l)_.

2) At 2300, the reactor is in MODE (2)

Which ONE of the following completes the statements above 9

A 1 one

2. four B. 1. one 2.five C. 1.two

2. four D. 1.two

2. five Page 69 of 75

Oconee Nuclear Station Question: 70 1LT45 ONSRONRCExaminalion (1 point)

Given the following Unit I conditions:

Reactor power = 100%

Group 3 Rod 6 drops into the core

Rod cannot be recovered Which ONE of the following describes action(s) required and the associated MAXIMUM completion time(s) in accordance with TS 3.1.5 (Safety Rod Position Limits)?

A. Verify SDM within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ONLY B. Verify SDM within 30 minutes ONLY C. Verify SDM within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months AND reduce reactor power to less than 60%

within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months D. Verify SDM within 30 minutes AND reduce reactor power to less than 60%

within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Page 70 of 75

Oconee Nuclear Station Question: 71 1LT45 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Reactor power = 100%

Which ONE of the following describes a condition that would require entry into a Tech Spec ACTIONS table?

A. UST level = 7.6 feet B. Pressurizer= 291 inches C. 1 D RPS channel in Manual bypass D. 230KV Dacus Black and White lines isolated Page 71 of 75

Oconee Nuclear Station Question: 72 1LT45 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Reactor in MODE 5

Reactor Building Main Purge in operation Which ONE of the following will cause the RB Purge fan to trip?

A. Inadvertent actuation of ES Channel 5 B. 1 RIA-45 reaches HIGH alarm setpoint C. Suction piping pressure = 5 inches of water vacuum D. I PR-3 (RB PURGE CONTROL) 5% open Page 72 of 75

Oconee Nuclear Station Question: 73 ILT4S ONSRONRCExamination (1 point)

An RWP that you are preparing to work under states that the highest dose rate in a particular area (at 30 cm) is 325 mR/hr. Mien you arrive at the work site, a flashing yellow light is noted in the entry path to the area.

1. How would an area with the dose rate specified in the RWP be designated?

2. What is the significance of the flashing yellow light?

A. 1. Radiation Area

2. Radiography is in progress B. 1. High Radiation Area

2. Radiography is in progress C. 1. Radiation Area

2. The area has been designated as a Locked High Radiation Area D. 1. High Radiation Area

2. The area has been designated as a Locked High Radiation Area Page 73 of 75

Oconee Nuclear Station Question:

74 ILT4S ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Initial conditions:

Time =0400

CTPB=75%stable

IA HPI pump operating

Transient occurs Current conditions:

Time =0405

CTPB = 76% stable

Letdown Flow = 78 gpm stable

HPI Flow Train A = 176 gpm decreasing slowly In accordance with OMP 1-18 (Implementation Standard During Abnormal and Emergency Events) at 0405:

1) Unit 1 (1) considered stable.

2) RCS makeup flow (2) within normal makeup capability.

Which ONE of the following completes the statements above?

A. 1.is

2. is B. 1.is

2. is NOT C. 1. is NOT

2. is D I sNOT 2 isNOT Page 74 of 75

Oconee Nuclear Station Question: 75 IL T45 ONS RO NRC Examination (1 point)

1) The emergency facility that assumes responsibility for communications with offsite Agencies, including the NRC once it is activated, is the (1)

2) The lowest classification level that requires this facilitys activation is a/an (2)

Which ONE of the following completes the statements above?

A. 1. Technical Support Center (TSC)

2. Alert B. 1. Technical Support Center (TSC)

2. Site Area Emergency C. 1. Operations Support Center (OSC)

2. Alert D. 1. Operations Support Center (OSC)

2. Site Area Emergency Page 75 of 75

Reference Listfor: ILT4S ONS RO NRC Examination AP/il End. 5iA OP/i 106/001 End. 45 Printed 4/2/2014 4:3 7:49 PM

Enclosure 5.1A AP/1/A/1700/0l 1 CT-4 Overload Limits{

}

17 Page 1 of 5 ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION Maximum transformer oil limit of 120°C should NEVER be exceeded.

NOTE

The following statalarms may provide early warning that transformer limits are being approached:

SA-18/B-4 (TRANSFORMER CT-4 OIL TEMPERATURE HIGH)

SA-18/C-4 (TRANSFORMER CT-4 WINDING TEMP HIGH)

01A0836 maximum readout is 150°C. The local gage must be used above 150°C.

Some single failure events could cause CT-4 winding temperature to exceed 160°C when only supplying essential loads. It is acceptable to exceed 160°C if supplying essential loads only and oil temperature remains below 120°C.

1. IAAT either of the following limits are exceeded:

Indicator Maximum 01A0835 120°C OR CT-4 Oil local gage Temperature 01A0836 160°C OR CT-4 Winding local gage Temperature THEN take immediate action to reduce non-essential loads on CT-4.

2. IAAT NO CT-4 transformer cooling is GO TO Step 5.

available (no transformer fans operating),

THEN perform Steps 3 4. -

Enclosure 5.1A AP/1/A/1700/Ol I CT-4 Overload Limits{

}

17 Page 3 of 5 ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE

CT-4 is limited to 17.5 MVA per curve in Step 4 or the 0.73 AC KILOAMPERES Incoming value in Step 3 RNO column, if in effect, until modifications are complete to install a spray system on CT-4. This procedure will be changed once modifications are complete.

This NOTE applies to Steps 3 and 4.

3. Verify jçi of the following available: 1. Use Unit I Switchyard Mimic board AC KILOAMPERES (on 2EF1) or OAC CT-4 MEGA WATTS point 01A0795 XFMR CT4 AMPS to CT-4 MEGA VARS maintain loads <limits determined above.

2._ GO TO Step 5.

Enclosure 5.1A AP/1/A/l700/Ol 1 CT-4 Overload Limits{}

17 Page 5 of 5 ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED I

4. Maintain CT-4 < 17.5 MVA curve (Limit with no forced cooling) of Figure 1.

FIGURE I{20}

CT-4 MEGAWATTS 24 --------j L1 23 -

--+ 1-+ + -4 1-22 100%

21 *-it wit only one

+++++. -

20 breacer 19 18 :::::::::::::::

17 16 TTTITT 112% - - -

15 : : : : : : :iiiiii: : : : : : : : : : : : : : : : : :

14 C/)

13 -

12 -

CD Lirr it wit iD F w 11 Forced oolin

.1- .i.-I. .I---- .

10 9

8 7 I IEEE[ :EHH PceptaDIe Region witt - - - -

j No Cooling available 6 JJ.L 5 ::::::: : : ::: : ::::: : :::: : : : ::

4 3

2

-HHH HH HHH H I

L 0

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2021 22 23 CT-4 Mvar Mwat. Rev. 3 10/26/12 rtr

5. WHEN directed by CR SRO, THEN EXIT this enclosure.

... END...

Enclosure 4.5 OP/i/A/i 106/00 1 Capability Curve {48} Page 1 of i Reference Use 900 800 700 600 500 400 300 200 f

100 0

100 200 300 400 500 600 700 CURVE AB LIMITED BY FIELD HEATING CURVE BC LIMITED BY ARMATURE HEATING CURIE CD LIMITED BY ARMATURE CORE END HEATING

Examination KEYfor: ILT4S ONS RO NRCExamina Question Answer Number 1 B 2 A 3 B 4 D 5 D 6 B 7 D 8 C 9 B 10 C 11 B 12 D 13 C 14 B 15 D 16 17 20 C 21 B 22 C 23 D 24 B 25 C Printed 4/4/2014 1:57:23 PM Page 1 of3

Examination KEYfor: IL T45 ONS RO NRC Examina Question Answer Number 26 D 27 B 28 A 29 D 30 B 31 A 32 B 33 D 34 B 35 A 36 A 37 B 38 D 39 D 40 C 41 C 42 C 43 B 44 D 45 D

46 A 47 C 48 B 49 D 50 B Printed 4/4/2014 1:57:23 PM Page 2 of3

Examination KEYfor: 1LT45 ONS RO NRC Examina Question Answer Number 51 A 52 A 53 D 54 D 55 B 56 A 57 D 58 A 59 A 60 D 61 D 62 D 63 A 64 D 65 A 66 67 70 A 71 B 72 B 73 D 74 C 75 A Printed 4/4/2014 1:5 7:23 PM Page 3 of3

ML15092A733

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