ML15009A337

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Initial Exam 2014-302 Final RO Written Exam
ML15009A337
Person / Time
Site: Oconee  Duke Energy icon.png
Issue date: 01/09/2015
From:
NRC/RGN-II
To:
Duke Energy Carolinas
References
50-269/OL-14, 50-270/OL-14, 50-287/OL-14
Download: ML15009A337 (78)
v • d • e


Text

Oconee Nuclear Station Question: I 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 2 conditions:

Initial conditions:

  • Reactor power = 100%
  • Both MFDW Pumps tripped
  • Subcooling margin monitors indicate as follows:

o 2A Loop SCM = 18°F decreasing o 2B Loop SCM 0°F stable o BOTH Core SCM = 12°F decreasing

1) Performing Rule 2 (Loss of SCM) _(1) required.
2) A reason RCPs are secured per Rule 2 is to (2)_.

Which ONE of the following completes the statements above?

A. 1. is

2. prevent pump damage that occurs from pumping a steam/water mixture B. 1. is
2. ensure RCPs are secured before the RCS can evolve to a void fraction of>

70%

C. 1. is NOT

2. prevent pump damage that occurs from pumping a steam/water mixture D. 1. is NOT
2. ensure RCPs are secured before the RCS can evolve to a void fraction of>

70%

Page 1 of 75

Oconee Nuclear Station Question:

  • 2 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 1200:00

  • Reactor Power = 100%
  • RCS Pressure = 2100 psig decreasing
  • RBNS level increasing
  • Reactor Building RL8s are in alarm Time 1202:00
  • Rule 2 directs tripping ALL RCPs due to SCM indications Time = 1204:30
  • IA1 RCP remains operating
  • IAI RCP Amps = 520 amps stable
1) In accordance with Rule 2 (Loss of SCM), at Time 1204:30 the 1A1 RCP should be(1).
2) If ANY RCP cannot be secured by the associated RCP Breaker switch on 1 UB2, Rule 2 directs de-energizing _(2)_ 6900V bus(es).

Which ONE of the following completes the statements above?

A. 1. left running

2. ONLY the associated B. 1. left running
2. BOTH C. 1. secured
2. ONLY the associated D. 1. secured
2. BOTH Page 2 of 75

Oconee Nuclear Station Question:

  • 3 1LT46 ONSRONRCExarnination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Time 0400:00
  • Reactor Power = 100%
  • RCS pressure 2100 psi9 rapidly decreasing
  • RB Pressure 0.3 psig rapidly increasing
  • Multiple RB RIA alarms Current conditions:
  • Time = 0402:30
  • RCS pressure 104 psig slowly decreasing
  • RB pressure = 16.2 psig slowly increasing
  • Operators have NOT adjusted the 1A RBCU alignment Which ONE of the following describes the lights that will be ILLUMINATED at Time =

0402:30 in the picture below?

DAMfS ,

0 a,

U A.

I Damper RED light and RBCU GREEN light B. Damper RED light and RBCU AMBER light C. Damper GREEN light and RBCU GREEN light D. Damper GREEN light and RBCU RED light Page 3 of 75

Oconee Nuclear Station Question:

  • 4 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 80%
  • lB Feedwater Flow = 4.4 x 106 LB/HR Current conditions:
1) Reactor power will AUTOMATICALLY be reduced to a MAXIMUM of (1) _%

Core Thermal Power.

2) When the MAXIMUM power level is reached, a MFDW flow of approximately (2)106 LB/HR will be established to the 1A Steam Generator.

Which ONE of the following completes the statements above?

A. 1.65

2. 5.4 B. 1.74
2. 5.4 C. 1.65
2. 6.1 D. 1.74
2. 6.1 Page 4 of 75

Oconee Nuclear Station Question: 5 IL T46 ONS RO NRC Examination (1 point)

1) When re-establishing seal injection flow to a RCP, the major concern with thermal shock to the ROP seals is seal failure resulting in _(1)_.
2) The MINIMUM condition that would require entry into AP/14 (Loss Of Normal HPI Makeup and/or RCP Seal Injection) is loss of seal injection to _(2)_ RCP(s).

Which ONE of the following completes the statements above?

A. 1. excessive RCS leakage

2. ANY B. 1. excessive RCS leakage
2. ALL C. 1. RCP shaft binding
2. ANY D. 1. RCP shaft binding
2. ALL Page 5 of 75

Oconee Nuclear Station Question:

  • 6 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 2 conditions:

  • ROS cooldown in progress
  • LPI aligned in the Series Mode
1) The reason Series Mode was developed for Unit 2 was to provide (1 )_.
2) A loss of the _(2) LPI Pumps would result in a total loss of Decay Heat Removal.

A. 1. a backup to the Switchover mode of LPI

2. 2A and 20 B. 1. a backup to the Switchover mode of LPI
2. 2B and 20
0. 1. additional cooling capacity during 2/0 pump ops
2. 2Aand2C D. 1. additional cooling capacity during 2/0 pump ops
2. 2B and 2C Page6of75

Oconee Nuclear Station Question: 7 1LT46 ONSRONRCExamination (1 point)

Given the following plant conditions:

Time = 1200:00

  • Unitl=100%
  • Unit2=MODE5
  • A and B LPSW Pumps are operating Time = 1205:00
  • A LPSW pump trips and will NOT restart
1) At Time = 1205:05 the C LPSW Pump _(1) received a signal to start.
2) At Time = 1206:00 Unit 1 _(2) meet the LCO requirements of Tech Spec 3.7.7 (LPSW).

Which ONE of the following completes the statement above?

ASSUME NO OPERATOR ACTIONS A. 1. has

2. does B. 1. has
2. does NOT C. 1. has NOT
2. does D. 1. has NOT
2. does NOT Page 7 of 75

Oconee Nuclear Station Question:

  • 8 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor power 62% stable
  • RCS pressure 2185 psig slowly decreasing
  • Pressurizer level = 229 inches slowly decreasing
  • Pressurizer temperature = 648.0°F slowly increasing
  • Pressurizer Heater Bank 1 switch is ON
  • Pressurizer Heater Bank 2 (Groups B & D) are in AUTO and OFF
  • Pressurizer Heater Banks 3 and 4 are in AUTO and OFF
1) The pressurizer is_(1)_.
2) The pressurizer saturation circuit (2) responding as expected.

Which ONE of the following completes the statements above?

A. 1. subcooled

2. is B. 1. subcooled
2. is NOT C. 1. saturated
2. is D. 1. saturated
2. is NOT Page 8 of 75

Oconee Nuclear Station Question:

  • 9 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%
  • BOTH MFDW pumps trip Current conditions:
  • Reactor power = 57% slowly decreasing
1) In accordance with Rule 1 (ATWS), the CRD breakers are opened (1) aligning HPI injection from the BWST.
2) The direction given to the operator opening the CRD breaker is to _(2)_ Arc Flash PPE.

Which ONE of the following completes the statements above?

A. 1. priorto

2. wear B. 1. priorto
2. NOT wear C. 1. after
2. wear D. 1. after
2. NOT wear Page 9 of 75

Oconee Nuclear Station Question:

  • 10 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

  • Loss of Heat Transfer has occurred
  • 1A SG level = 8 XSUR slowly decreasing
  • 1A SG pressure = 412 psig slowly decreasing
  • 1 B SG level 5 XSUR slowly decreasing
  • 1 B 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).

Which ONE of the following completes the statement above?

A. 1. 100

2. damage to the Steam Generators B. 1. 100
2. an RCS overcooling event C. 1.50
2. damage to the Steam Generators D. 1.50
2. an RCS overcooling event Page 10 of 75

Oconee Nuclear Station Question:

  • 11 1LT46 ONSRONRCExamination (1 point)

Oconee plant conditions:

  • Station blackout has occurred
  • The EOP Blackout tab has been in progress for three hours
  • ICA voltage 104 VDC Which ONE of the following describes why the Blackout tab directs the crew to FAIL 1CC-8 (CC RETURN PENT (54) OUTSIDE BLOCK) closed?

A. 100-8 will fail open if IA pressure decreases to <35 psig.

B. Prevents auto restart of CC pumps once AC power is restored.

C. CC will not be needed in the Reactor Building during the shutdown following the blackout.

D. 100-8 will fail open if DC power is lost to the solenoid.

Page 11 of 75

Oconee Nuclear Station Question:

  • 12 1LT46 ONSRONRCExamination (1 point>

Given the following Unit 1 conditions:

Initial conditions:

  • CT-I lockout Current conditions:
  • AP/1 1 (Recovery from Loss of Power) initiated
  • Si1 (STBY BUS ito MFB1) Breaker will NOT close
  • LOAD SHED COMPLETE is NOT lit on the ES Component Status Panel In accordance with AP/i 1, electrical loads are secured to Which ONE of the following completes the statement above?

A. prevent exceeding CT-4 Overload Limits B. prevent exceeding CT-5 Overload Limits C. ensure Si 2 (STBY BUS 2 to MFB2) Breaker is operated within limits D. ensure adequate voltage to ES equipment during a subsequent LOCA Page 12 of 75

Oconee Nuclear Station Question:

  • 13 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 1200

  • Reactor Power = 100%
  • 1 KVIA is de-energized
1) At Time = 1300 Backup Incore Instrumentation _(1) preferred to be used for Quadrant Power Tilt indications in accordance with OP/I/All 105/014 (Control Room Instrumentation Operation And Information) Enclosure 4.13 (Reactor Parameter Information).
2) The MINIMUM power level at which the Tech Spec Quadrant Power Tilt limits in the COLR apply is _(2)_.

Which ONE of the following completes the statements above?

A. 1, is

2. 20%

B. 1. is

2. 40%

C. 1. is NOT

2. 20%

D. 1, is NOT

2. 40%

Page 13 of 75

Oconee Nuclear Station Queston:

  • 14 1LT46 ONS RO NRC Examination (1 point)

Given the following plant conditions:

  • KHU-1 generating to grid
  • 1 DA input breaker (Ki -DA-1 A, Batt #1 Ckt Bkr) fails OPEN
  • 2SA-17/A3 (Unit 1 Alarm Lockout) actuates
1) KHU #1 _(1 )_ trip.
2) The reason DC power is used for Keowee control power is that it will be available for a MINIMUM of approximately (2) hour(s) following a loss of ALL AC power.

Which ONE of the following completes the statements above?

A. 1.willNOT

2. one B. 1,will NOT
2. four C. 1.will
2. one D. 1.will
2. four Page 14 of 75

Oconee Nuclear Station Question: 15 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

  • Reactor Power = 100%
  • AP/22 (Loss of Instrument Air) in progress
1) Auxiliary Instrument Air (AlA) (1 )_ provide a backup source of air to 1 HP-31.
2) With ALL motive force lost, the operator sent to manually operate 1HP-31 will INITIALLY be required to throttle 1 HP-31 in the _(2)_ direction.

Which ONE of the following completes the statements above?

A. 1. does

2. closed B. 1. does
2. open C. 1,does NOT
2. closed D. 1.does NOT
2. open Page 15 of 75

Oconee Nuclear Station Question:

  • 16 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

  • 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. RCS pressure is decreasing B. 1. may NOT
2. CETCs are increasing C. 1. may
2. Pzr Level is increasing D. 1. may
2. CETCs are decreasing Page 16 of 75

Oconee Nuclear Station Question: 17 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%
  • Reactor has tripped
  • RCS Tave = 544°F slowly increasing
  • 1A SG Pressure 0 psig
  • 1 B SG Pressure = 990 psig slowly increasing
  • Reactor Building pressure = 0.2 psig stable Which ONE of the following describes:
1) the status of the TDEFWP?
2) how subsequent operation of the TDEFWP would be performed?

A. 1. Operating

2. Can be secured with TDEFWP control switch before AFIS is reset B. 1. Operating
2. Can be secured with TDEFWP control switch ONLY after AFIS is reset C. 1. NOT operating
2. Can be started with TDEFWP control switch before AFIS is reset D. 1. NOToperating
2. Can be started with TDEFWP control switch ONLY after AFIS is reset Page 17 of 75

Oconee Nuclear Station Question:

  • 18 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor tripped from 100% power
  • Main Steam pressure is being reduced in an attempt to reseat 1 MS-i 0 In accordance with Subsequent Actions of the EOP,
1) Main Steam pressure will be reduced in (1)_ psig increments.
2) the MINIMUM RCS temperature allowed while reseating a MSRV is _(2) °F.

Which ONE of the following completes the statements above?

A. 1. 10

2. 532 B. 1.20
2. 532 C. 1.10
2. 525 D. 1.20
2. 525 Page 18 of 75

Oconee Nuclear Station Question:

  • 19 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor Power = 98% decreasing
  • Control Rod 4 in Group 6 = 0% withdrawn i> los will automatically reduce Reactor power to _(1)_% Core Thermal Power.
2) The basis for decreasing reactor power to the above level is to ensure (2).

Which ONE of the following completes the statements above?

A. 1.65

2. Local Linear Heat Rate limits are not exceeded B. 1,65
2. adequate margin in preparation for resetting RPS trip set points C. 1.55
2. Local Linear Heat Rate limits are not exceeded D. 1.55
2. adequate margin in preparation for resetting RPS trip set points Page 19 of 75

Oconee Nuclear Station Question:

  • 20 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor in MODE 3 Current conditions:
  • 1 DIB inverter DC Input breaker trips The associated source range power will be restored using the Which ONE of the following completes the statement above?

A. ASCO Switch B. Static Transfer Switch C. Manual Bypass Switch D. lnverter Bypass Switches Page 20 of 75

Oconee Nuclear Station Question: 21 IL T46 ONS RO NRC Examination (1 point)

Which ONE of the following is the condenser vacuum (inches Hg) SETPOINT stated in AP/27 (Loss Of Condenser Vacuum) that will require manually tripping the Reactor when in MODE 1?

A. 25 B. 24 C. 22 D. 19 Page 21 of75

Oconee Nuclear Station Question: 22 IL T46 ONS RO NRC Examination (1 point) 1 RIA-3, (Refueling Canal Wall Area Monitor),...

1) HIGH alarm _(1)_ cause a Reactor Building Evacuation alarm.
2) is NOT in HIGH alarm during Power Operations because the _(2)_.

Which ONE of the following completes the statements above?

A. 1. will

2. setpoint is raised to provide for indication of RCS leakage B. 1. will
2. detector is removed from the Reactor Building C. 1. will NOT
2. setpoint is raised to provide for indication of RCS leakage D. 1. will NOT
2. detector is removed from the Reactor Building Page 22 of 75

Oconee Nuclear Station Question: 23 IL T46 ONS RO NRC Examination (1 point)

Given the following plant conditions:

  • An Active Fire is taking place in Unit 2 Equipment Room
  • The SRO dispatches you to the Unit 1 Equipment Room to determine Control Room Ventilation and Fire Damper positions
1) Control Room Ventilation system damper positions _(1)_ be determined by observing the linkage pointing to either the OPEN or CLOSED tag.
2) Observing that all damper blades are aligned in either the open or closed position

_(2) the ONLY way to determine Fire Damper positions between Unit 1 and Unit 2 Equipment Rooms.

Which ONE of the following completes the statements above?

A. 1. can

2. is B. 1. can
2. is NOT C. 1. can NOT
2. is D. 1. can NOT
2. is NOT Page 23 of 75

Oconee Nuclear Station Question: 24 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 2 conditions:

Initial conditions:

  • Reactor power = 90%
  • Loop A Controlling Thot fails HIGH
  • 2SA2/B4 (RC AVERAGE TEMP HIGH/LOW) actuated Current conditions:
  • The Diamond and BOTH FDW Masters taken to HAND Which ONE of the following describes the INITIAL action taken by an RO, and the reason for the action, in accordance with OMP 1-18 (Implementation Standard During Abnormal And Emergency Events)?

A. Decrease Feedwater to stabilize reactor power B. Decrease Feedwater to stabilize RCS pressure C. Insert control rods to stabilize RCS pressure D. Insert control rods to stabilize reactor power Page 24 of 75

Oconee Nuclear Station Question: 25 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 2 conditions:

  • Reactor power 100%
  • 2SA-18/A-11, TURBINE BSMT WATER EMERGENCY HIGH LEVEL, is in alarm
  • Turbine Building flooding is confirmed In accordance with the Turbine Building Flood tab of the EOP,,.

1> Emergency Feedwater pumps 1) required to be utilized to fill the Steam Generators in addition to the Main Feedwater pumps.

2) While maximizing feed to the SGs, the MAXIMUM feed rate limits of Rule 7 (SG Feed Control> _(2)____ apply while maintaining Tave > 532 °F.

Which ONE of the following completes the statements above?

A. 1. are

2. do B. 1. are
2. do NOT C. 1. are NOT
2. do D, 1. are NOT
2. do NOT Page 25 of 75

Oconee Nuclear Station Question: 26 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 1200

  • BOTH 1A and lB SG pressures rapidly decreasing
  • CoreSCM=0°F Time = 1204
  • Tcold reaches lowest value of 416°F Time = 1215
  • Tcold = 498°F stable
  • Core SCM = 78°F stable
  • Rule 2 (Loss of SCM) is complete
1) (1) was the EOP tab that was required to be entered first from Subsequent Actions.
2) Rule 8 (Pressurized Thermal Shock) (2) required to be invoked.

Which ONE of the following completes the statements above?

A. 1. Loss of SCM

2. is B. 1. Loss of SCM
2. is NOT C. 1. Excessive Heat Transfer
2. is D. 1. Excessive Heat Transfer
2. is NOT Page 26 of 75

Oconee Nuclear Station Question:

  • 27 1LT46 ONSRONRCExamination (1 point)

Given the following Unit I conditions:

Time 1200

  • EOL Unit shutdown in progress
  • RCS Thot 439°F stable Time = 1205
  • Electrical disturbance occurs
  • The following statalarms actuate o iSA-i 5/E6 (EL Swyd Isolation Confirmed Chnl A Logic) o 1SA-141E6 (EL Swyd Isolation Confirmed Chnl B Logic) o 1 SA-21A3 (RC Loop A Flow Low) o 1SA-2/A4 (RC Loop B Flow Low) o 1 SA-2/A5 (RC Total Flow Low)
1) Assuming no additional operator actions, at Time 1230, Thot will be (1)_

439°F.

2) Entry into the EOP _(2) required.

Which ONE of the following completes the statements above?

A. 1. greaterthan

2. is NOT B. 1. greaterthan
2. is C. 1. approximately
2. is NOT D. 1. approximately
2. is Page 27 of 75

Oconee Nuclear Station Question:

  • 28 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor power 100% stable
  • Delta Tc ICS station in HAND
  • 1A1 RCP shaft shears When RCP 1A1 shears, the plant will automatically run back at (1) and when power stabilizes, 1 A loop Tc will be (2) 1 B loop Tc.

Which ONE of the following completes the statement above?

ASSUME NO OPERATOR ACTIONS A. 1. 20% per minute

2. less than B. 1. 20% per minute
2. approximately the same as C. 1. 25%perminute
2. less than D. 1. 25%perminute
2. approximately the same as Page 28 of 75

Oconee Nuclear Station Question: 29 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

nitial conditions:

  • 1A1 RCP start in progress
  • AC oil lift pump is started Current conditions:
  • Oil lift pump low discharge pressure does NOT clear
1) The AC oil lift pump _(1)_ automatically stop after a time delay.
2) The bypass position on the RCP start/stop switch (2) bypass ALL RCP starting interlocks.

Which ONE of the following completes the statements above?

A. 1. will

2. will B. 1. will
2. will NOT C. 1, will NOT
2. will D. 1, will NOT
2. will NOT Page 29 of 75

Oconee Nuclear Station Question:

  • 30 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 3 conditions:

  • Reactor Power = 100% for previous 7 months
  • lOS in automatic
  • 3A Purification IX was taken out of service 6 months ago
  • 3A Purification IX was just placed back in service without being saturated to current ROS boron concentration
1) Group 7 control rods will be (1)_.
2) Assuming no other operator actions, taking the lOS Reactor Bailey station ONLY to HAND _(2) stop the rod motion.

Which ONE of the following completes the statements above?

A. 1. inserting

2. will B. 1. inserting
2. will NOT C. 1. withdrawing
2. will D. 1. withdrawing
2. will NOT Page 30 of 75

Oconee Nuclear Station Question: 31 1LT46 ONSRONRCExamination (1 point)

Which ONE of the following consists of ONLY components powered from 2TD?

A. 20 LPI pump and 2B HPI pump B. 20 LPI pump and 20 HPI pump C. 2B LPI pump and 2B HPI pump D. 2B LPI pump and 20 HPI pump Page 31 of 75

Oconee Nuclear Station Question:

  • 32 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 3 conditions:

  • Reactor power = 100%
  • 3A Core Flood Tank o Pressure = 587 psig stable o Level = 12.87 ft stable
  • 3B Core Flood Tank o Pressure = 629 psig stable o Level= 13.36 ft stable Which ONE of the following describes the potential adverse effect and its cause that could occur during a design basis large break LOCA?

A. 3A CFT will discharge an inadequate volume of water into the core due to the CFT level.

B. 3A CFT will discharge an inadequate volume of water into the core due to the CFT pressure.

C. 3B CFT will discharge too much inventory during the blow down phase and not cover the hotspot during re-flood due to OFT level.

D. 3B OFT will discharge too much inventory during the blow down phase and not cover the hotspot during re-flood due to OFT pressure.

Page 32 of 75

Oconee Nuclear Station Question: 33 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Large Break LOCA has occurred In accordance with EOP End. 5.12 (ECCS Suction Swap to RBES), which ONE of the following describes:

1) the range of BWST levels (ft) where LPI pump suction would be aligned to both the RB Emergency Sump and the BWST simultaneously?
2) the action(s) that would be required if 1 LP-22 failed to close when isolating the BWST?

A. 1. 159

2. stop the 1 B LPI pump AND 1 B RBS pump B. 1. 159
2. Maximize total LPI flow < 3100 gpm C. 1. 96
2. stop the 1 B LPI pump AND 1 B RBS pump D. 1. 96
2. Maximize total LP flow < 3100 gpm Page 33 of 75

Oconee Nuclear Station Question:

  • 34 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor in MODE 1
  • Quench Tank is being pumped to 1A BHUT using the Quench Tank Pump AND the Component Drain Pump
1) In accordance with OPI1/A111041017 (Quench Tank Operations), Quench Tank Level shall be maintained at a MAXIMUM of _(1)_ inches.
2) The Component Drain Pump (2)_ automatically trip once Quench Tank level reaches 80 inches 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 34 of 75

Oconee Nuclear Station Question:

  • 35 1LT46 ONSRONRCExarnination (1 point)

Given the f000wing Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%
  • 1 A and I B Letdown Coolers in service
  • Letdown flow 78 gpm Current conditions:
  • IA Letdown Cooler is removed from service by the RO in the Control Room
1) CC flow to the 1 B Letdown Cooler will (1)
2) In accordance with OP/1/A11104/002 (HPI System), once the 1A Letdown Cooler is isolated the MAXIMUM letdown flow is _(2)_ gpm.

Which ONE of the following completes the statements above?

A. 1. stay the same 2.88 B. 1. stay the same

2. 125 C. 1. increase 2.88 D. 1. increase
2. 125 Page 35 of 75

Oconee Nuclear Station Question: 36 1LT46 ONS RO NRC Examination (1 point>

Which ONE of the following sets of components are BOTH cooled by the Component Cooling system.

A. RCP Seal Return Coolers AND Quench Tank Coolers B. RCP Seal Return Coolers AND RCP Motor Coolers C. RCP Seal Coolers AND Quench Tank Coolers D. RCP Seal Coolers AND RCP Motor Coolers Page 36 of 75

Oconee Nuclear Station Question:

  • 37 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 3 conditions:

  • Time=1200
  • Reactor power = 100%
  • Channel A AND Channel B narrow range RCS pressure fail HIGH
1) At Time = 1200 an AUTOMATIC reactor trip _(1 )_ occur.
2) At Time = 1205 a low RCS pressure ES actuation (2) occurred.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. will

2. has B. 1. will
2. has NOT C. 1. will NOT
2. has D. 1. will NOT
2. has NOT Page 37 of 75

Oconee Nuclear Station Question:

  • 38 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor power = 100%
  • 1 Bi Reactor coolant pump trips Based on the above conditions, which ONE of the following RPS trips will prevent exceeding the Departure from Nucleate Boiling Ratio (DNBR) safety limit?

A. Flux/Pump B. LowRCS Pressure C. Flux/Flow/Imbalance D. High RCS Temperature Page 38 of 75

Oconee Nuclear Station Question:

  • 39 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor Power = 100%
  • 1 KVIB panelboard is de-energized
1) The (1)_ Voters will NOT actuate their associated safeguards equipment.
2) Engineered Safeguards System Instrument Channels are in a _(2) out of two trip condition.

Which ONE of the following completes the statements above?

A. 1. ODD

2. one B. 1. ODD
2. two C. 1. EVEN
2. one D. 1. EVEN
2. two Page 39 of 75

Oconee Nuclear Station Question:

  • 40 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

  • Reactor power = 100%
  • Reactor Building Pressure peaks at 22.4 psig
1) The pump whose switch is pictured below _(1)_ received an ES signal to start.
2) The valve whose switch is pictured below _(2) received an ES signal to OPEN.

CLPSW PUMP 1LPSW1E 1 OPEN CLOSED Which ONE of the following completes the statements above?

A. 1. has NOT

2. has NOT 1.hasNOT t I
2. has li II C- 1. has
2. has NOT
1. has
2. has Page 40 of 75

Oconee Nuclear Station Question: 41 1LT46 ONSRO NRCExamination (1 point)

Given the following Unit 1 conditions

  • Reactor in MODE 1
1) The LOWER Reactor Building Pressure that will result in an automatic start of the Reactor Building Spray pumps is (1)_ psig.
2) The BWST to RBS pump suction valve 1 LP-22 (2)_ receive a signal to OPEN on ECCS actuation.

Which ONE of the following completes the statements above?

A. 1. 4.2

2. does NOT B. 1. 4.2
2. does C. 1. 11.5
2. does NOT D. 1. 11.5
2. does Page 41 of 75

Oconee Nuclear Station Question:

  • 42 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%
  • 1TC locked out
  • I BS-2 breaker is open and will not close Current conditions:
  • ES 1 8 actuates due to a Large Break LOCA
1) Based on the above conditions, the RBS system (1) be able to perform its safety function.
2) When in recirculation mode, one of the RBS system purposes is to (2) .

Which ONE of the following completes the statements above?

A. 1. will 2 entrain Iodine thus reducing offsite dose B. 1. will NOT

2. entrain Iodine thus reducing offsite dose C
2. minimize hydrogen production D. 1. will NOT
2. minimize hydrogen production Page 32 of 75

Oconee Nuclear Station Question: 43 IL T46 ONS RO NRC Examination 1 point)

Given the following Unit 3 conditions:

Initial conditions:

  • Reactor power = 100%
  • 3MS-77, 78, 80, 81 (MS to SSRHs) control switches in OPEN Current conditions:
1) 3MS-112&3MS-173wil1(1).
2) 3MS-77, 78, 80, 81 will (2)

Which ONE of the following completes the statements above?

A. 1. close

2. close B. 1.close
2. remain open C. 1.remainopen
2. close D. 1. remain open
2. remain open Page 43 of 75

Oconee Nuclear Station Question:

  • 44 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions Initial conditions:

  • Reactor power = 70% stable Current conditions:
  • 1HPE-6 (Heater IA1 Bleed Inlet) closed Which ONE of the following predicts the:
1) impact of the malfunction on Feedwater flow assuming no operator action?
2) procedure which can be used to reopen 1 HPE-6?

A. 1. higher

2. OP/i /A/1106/23 (High and Low Pressure Extraction)

B. 1. higher

2. OP/i /A/i 106/002 (Condensate and FDW system)

C. 1. lower

2. OP/i/A/iiO6/23 (High and Low Pressure Extraction)

D. 1. lower

2. OP/1/A/1i06/002 (Condensate and FDWsystem)

Page 44 of 75

Oconee Nuclear Station Question: 45 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%

Current conditions:

  • Condenser vacuum = 18.5 inches Hg stable
  • ITA and 1TB de-energized SG levels will be automatically controlled at Which ONE of the following completes the statement above?

A. 25 inches Startup Range B. 30 inches XSUR C. 50% Operating Range D. 240 inches XSUR Page 45 of 75

Oconee Nuclear Station Question: 46 IL T46 ONS RO NRC Examination (1 point)

Which ONE of the following utilizes the 1TE ES Power String as its source of electrical power?

A. C LPSW pump B. 1CRBCU C. 1BMDEFWP D. 1BRBS pump Page 46 of 75

Oconee Nuclear Station Question: 47 IL T46 ONS RO NRC Examination (1 point)

Given the following plant conditions:

  • The Standby Buses are being powered from the 100 kV line
  • The SL Breakers Auto/Manual Selector switches are in AUTO
  • The TRIP INTERLOCK DEFEAT SWITCH is in the LEE position Which ONE of the following conditions will cause the SL Breakers to open?

A. An undervoltage condition occurs on Standby Bus 1 ONLY.

B. An undervoltage condition would have to occur on BOTH Standby Bus 1 AND Standby Bus 2.

C. The 1st level 100KV Degraded Voltage Relay has been satisfied for 9 seconds AND the 2nd level 100KV Degraded Voltage Relay is now satisfied.

D. The 1st level 100KV Degraded Voltage Relay is satisfied now AND the 2nd level 100KV Degraded Voltage Relay has been satisfied for 9 seconds.

Page 47 of 75

Oconee Nuclear Station Question:

  • 48 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%
  • 1 PA Battery is inoperable In accordance with SLC 16.8.3 (Power Battery Parameters):
1) The MAXIMUM Completion time allowed to declare the Unit 1 TDEFDW pump inoperable is _(1)_.
2) Cross connecting (2) buses is required.

Which ONE of the following completes the statements above?

A. 1. immediately

2. 1PA and 1PB B. 1. immediately
2. 1PA,2PAand3PA C. 1. within one hour
2. 1PA and 1PB D. 1. within one hour
2. 1PA, 2PAand 3PA Page 48 of 75

Oconee Nuclear Station Question: 49 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Time = 1200

  • Reactor power 100%
  • ACB-4 Closed
  • Large LOCA occurs coincident with a total loss of offsite power Time = 1205
  • Keowee Hydro Unit (KHU)-2 Emergency Lockout occurs Which ONE of the following describes how ECCS systems are being powered at Time

= 1210?

ASSUME NO OPERATOR ACTIONS A. KHU-1 through the Overhead power path B. KHU-1 through the underground power path C. CT-5 powered from Lee combustion turbine D. CT5 powered from Central Switchyard Page 49 of 75

Oconee Nuclear Station Question: 50 1LT46 ONSRONRCExamination (1 point)

Which ONE of the following describes the operation of the Unit Vent Radiation Monitors RIA-45 and RL-46 when the switchover acceptance range setpoint is reached?

RIA-45 (1) read ZERO and RL-46 will provide (2)

A. 1,will

2. only alarm and unit vent radiation level indication B. 1.will
2. the same interlock functions that RIA-45 performs C. 1.willNOT
2. only alarm and unit vent radiation level indication D. 1.willNOT
2. the same interlock functions that RIA-45 performs Page 50 of 75

Oconee Nuclear Station Question:

  • 51 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor power 100%
  • A and B LPSW pumps are turned OFF and cannot be restarted
  • 1AP124 (Loss of LPSW) initiated
1) The LOWEST CRD temperature that will require a Reactor trip is (1)_ °F in accordance with 1AP/20 (Loss of Component Cooling).
2) PRIOR to the reactor trip, the RCW heat exchanger outlet temperatures would be expected to _(2)_.

Which ONE of the following completes the statements above?

A. 1. 140

2. increase B. 1. 140
2. remain unchanged C. 1. 180
2. increase D. 1. 180
2. remain unchanged Page 51 of 75

Oconee Nuclear Station Question:

  • 52 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit I conditions:

  • Reactor Power = 25% stable
  • Instrument Air pressure = 63 psig slowly decreasing AP/22 (Loss of Instrument Air) will direct the operator to trip the Which ONE of the following completes the statement above?

A. Reactor ONLY B. Main Turbine ONLY C. Main Feedwater Pumps ONLY D. Reactor and Main Feedwater Pumps ONLY Page 52 of 75

Oconee Nuclear Station Question: 53 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • 1FDW-316 pneumatic supply line has ruptured and the valve cannot be operated from Control Room
  • Enclosure 5.27 (Alternate Methods of Feeding the Steam Generator) in progress
  • SRO notified that the startup path to the 1 B SO CANNOT be used Which ONE of the following is the NEXT method specified in Enclosure 5.27 to control RCS temperature?

A. Using ONLY the 1A SG B. Use 1A SG AND feed lB SG with Alternate Units EFDW C. Use 1A SG AND feed lB SG by manually throttling 1FDW-316 D. Use 1A SG AND feed lB SG with TDEFWP using 1MS-94 spindle to throttle TDEFWP speed Page 53 of 75

Oconee Nuclear Station Question:

  • 54 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Time = 1200

  • Reactor in MODE 5
  • RCS Loops dropped
  • Pressurizer level = 340 stable
  • RB Cavity washdown in progress
  • RB Purge in progress
  • Reactor Building Sump is being pumped Time = 1205
  • Pressurizer level 322 decreasing
  • 1RIA-49 (Reactor Building High Gas) in HK3H alarm
1) The Containment Evacuation alarm (1) AUTOMATICALLY actuate as a result of the 1RLA-49 HIGH alarm.
2) _(2) is the procedure that is required to be entered FIRST.

Which ONE of the following completes the statements above?

A. 1. will

2. AP/26 (Loss of Decay Heat Removal)

B. 1. will

2. AP/2 (Excessive RCS Leakage)

C. 1. will NOT

2. AP/26 (Loss of Decay Heat Removal)

D. 1. will NOT

2. AP/2 (Excessive RCS Leakage)

Page 54 of 75

Oconee Nuclear Station Question: 55 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor in MODE 5
  • RB Main Purge in operation Which ONE of the following will cause the RB Main Purge Fan to AUTOMATICALLY trip OFF?

A. Suction pressure = 5 of water vacuum B. 1 RLA-45, UNIT VENT GAS NORM, reaches its ALERT setpoint C. Statalarm 1SA9/B-3, RBV PURGE INLET TEMPERATURE LOW, alarms D. 1 PR-3 (RB PURGE CONTROL) green CLOSED light is lit and red OPEN light is off on 1VB2 Page 55 of 75

Oconee Nuclear Station Question:

  • 56 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit I conditions

  • Reactor startup in progress
  • ALL Control Rods 0% withdrawn In accordance with AD-OP-ALL-0203 (Reactivity Management), which ONE of the following is the EARLIEST condition during a reactor startup where criticality should be expected?

When operators begin withdrawing A. CRD Safety Groups B. CRD Regulating Groups C. rods after the -.75% delta K/K ECP position is reached D. rods after the -1% delta K/K ECP position is reached Page 56 of 75

Oconee Nuclear Station Question:

  • 57 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Time = 1200

  • Reactor has tripped from 100%

Time 1205

  • BOTH 1A and lB SGs are dry
  • RCS temperature = 584°F slowly increasing
  • RCS pressure = 2044 psig slowly increasing
1) Assuming NO operator actions, RCS _(1)_ will stop increasing FIRST.
2) The NEXT method of decay heat removal required by the EOP will be (2)_.

Which ONE of the following completes the statements above?

A. 1. pressure

2. HPI Forced Cooling B. 1. pressure
2. SSFASW C. 1.temperature
2. HPI Forced Cooling D. 1.temperature
2. SSFASW Page 57 of 75

Oconee Nuclear Station Question: 58 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial Conditions:

  • Reactor Power = 100%
  • 1 B RPS channel in Manual Bypass due to failed RB pressure transmitter Current Conditions:
1) (1) AUTOMATICALLY trip.
2) _(2)_ required to be placed in Manual Bypass in accordance with OP/i IA/i 105/014 (Control Room Instrumentation).

Which ONE of the following completes the statements above?

A. 1, did

2. is B. 1. did
2. is NOT C. 1. did NOT
2. is D. 1. did NOT 2, is NOT Page 58 of 75

Oconee Nuclear Station Question:

  • 59 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor power = 90% stable
  • 1A and I B Main FDW Control valves are in HAND
1) The initial response to the above failure is that Steam Generator levels (1) increase.
2) IF the conditions above result in a Reactor trip, the FDW Control Valve ICS Hand/Auto stations will _(2)_.

Which ONE of the following completes the statements above?

ASSUME NO OPERATOR ACTIONS A. 1. will

2. remain in HAND B. 1. will
2. revertto AUTO C. 1. will NOT
2. remain in HAND
1. will NOT
2. revert to AUTO Page 59 of 75

Oconee Nuclear Station Question:

  • 60 1LT46 ONSRONRCExamination (1 point)

Given the following plant conditions:

Time = 1200

  • Fuel Handling activities in progress in Unit 1&2 Spent Fuel Pool
  • Fuel Cask is dropped damaging the Spent Fuel Pool liner Time = 1205
  • Spent Fuel Pool level = -2.9 feet decreasing
  • Spent Fuel Pool Ventilation system is in operation At TIME 1205:
1) The Unit 1 &2 Spent Fuel Cooling Pumps _(1)_ tripped off on low Spent Fuel Pool level.
2) Spent Fuel Pool Ventilation system is using the Unit _(2)_ Main Purge Filters.

Which ONE of the following competes the statements above?

A. 1. have

2. One B. 1. have
2. Two C. 1. have NOT
2. One D. 1. have NOT
2. Two Page 60 of 75

Oconee Nuclear Station Question:

  • 61 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor power = 100%
  • 1 KU is de-energized
1) The TBVs are _(1)_.
2) The TBVs (2)_ manually operable from the Control Room.

Which ONE of the following completes the statements above?

A. 1. closed

2. are B. 1, 50% open
2. are C. 1. closed
2. are NOT D. 1. 50% open
2. are NOT Page 61 of75

Oconee Nuclear Station Question:

  • 62 IL T46 ONS RO NRC Examination (1 point>

Given the following Unit 1 conditions:

0359:45

  • Reactor power = 70% stable
  • lBCBPtrips 0400:00
  • Main FDW Pump suction pressure = 235 psig decreasing 0401:00
  • Main FDW Pump suction pressure = 230 psig decreasing 0401:30
  • Main FDW Pump suction pressure = 225 psig stable Based on the above conditions, complete the following statements:
1) Of the times listed above. 1 0-61 (Cond Cooler Bypass Control) will fkt open at (1)_.
2) At 0401:35, the entry conditions for the EOP (2) met.

Which ONE of the following completes the statements above?

A. 1. 0400:00

2. are B. 1. 0400:00
2. are NOT C. 1. 0401:30
2. are D. 1. 0401:30
2. are NOT Page 62 of 75

Oconee Nuclear Station Quesbon:

  • 63 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • 1A GWD tank release in progress
  • 1SA-8/B9 (Process Monitor Radiation High) actuates
1) Which ONE of the following describes the impact on the Gaseous Waste Disposal (GWD) system?
2) AP/1 8 (Abnormal Release of Radioactivity) (2)_ required to be performed prior to re-initiating the release?

A. 1. Closes 1A GWD tank inlet AND outlet valves

2. is B. 1. Closes 1A GWD tank inlet AND outlet valves
2. is NOT C. 1. Closes 1A GWD tank outlet valves but does NOT close the 1A GWD tank inlet valves
2. is D. 1. Closes 1A GWD tank outlet valves but does NOT close the 1A GWD tank inlet valves
2. is NOT Page 63 of 75

Oconee Nuclear Station Question:

  • 64 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • PTIOIAIO23OIOO1 Radiation Monitor Check completed on Unit I
  • 1RIA.-57 = .75 R/HR Which ONE of the following is an indication of a satisfactory source check?

A. Alert Alarm Actuation ONLY B. Alert AND High Alarm Actuation ONLY C. Area Monitor Fault Alarm Actuation ONLY D. NO alarms actuate during the source check Page 64 of 75

Oconee Nuclear Station Question: 65 1LT46 ONS RO NRC Examination (1 point)

IA Pressure vs. Time 1

w 2

U)

(1) w 2

U 1200 1210 1220 T ME Based on the graph above, which ONE of the following describes the EARLIEST time at which SA-141 (SA to IA Controller) will automatically open?

A. 1207 B. 1210 C. 1212 D. 1215 Page 65 of 75

Oconee Nuclear Station Question:

  • 66 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 plant conditions:

  • Reactor Power = 100%
  • An evolution is about to begin in the Control room in which an annunciator alarm has been deemed expected In accordance with AD-OP-ALL-bOO (Conduct of Operations)...
1) The CRS_(1)_ suspend the requirement to verbally announce the alarm.
2) Once the annunciator response procedure has been referenced for an Expected alarm, it

_(2)_ required to be reviewed for subsequent alarms received during that shift.

Which ONE of the following completes the statements above?

A. 1. may

2. is B. 1. may
2. is NOT C. 1. may NOT
2. is D. 1. may NOT
2. is NOT Page 66 of 75

Oconee Nuclear Station Question: 67 1LT46 ONSRONRCExamination (1 point)

Note: Drawing not representative of actual plant conditions.

Given the following Unit 1 conditions:

Initial conditions:

  • Time = 0400
  • Reactor power = 100% decreasing
  • Control Rod Group 1 Rod 3 = 0% withdrawn Current conditions:
  • Time = 0430
  • Reactor power = 68% decreasing
1) At 0400, the power to which the ICS is running the plant back is displayed in the (1) window. (refer to the drawing above)
2) The unit (2) automatically stabilize at the required reactor power for plant conditions.

Which ONE of the following completes the statements above?

A. 1. upper

2. will
8. 1. upper
2. will NOT C. 1. lower
2. will D. 1. lower
2. will NOT Page 67 of 75

Oconee Nuclear Station Question:

  • 68 1LT46 ONSRONRCExamination (1 point)

Given the following plant conditions:

  • Unit 1 Reactor power 100%
  • Unit 2 Reactor in MODE 3
  • No events in progress that would require activation of the SSF In accordance with OMP 2-01 Attachment D (SSF Staffing Requirements)...
1) for the given conditions, a minimum of(1) Reactor Operators is maintained within the Unit 1 & 2 Control Room (inside the CAD doors), with the following potential exception:
2) if one BOP/SSF operator leaves the Unit 1 & 2 Control Room for a short period of time, it is required that _(2)_.

NOTE: Consider the two statements separately; i.e., if it is permissible for the BOP/SSF operator to leave the Control Room for a short time, include that individual in the minimum number of the first statement.

Which ONE of the following completes the statements above?

A. 1. three

2. a method of communication is established to ensure the BOP/SSF operator outside the Control Room can be informed if the SSF needs to be activated B. 1. three
2. another qualified licensed operator with no other concurrent duties relieves the BOP/SSF operator and stays within the Unit 1 & 2 Control Room (inside the CAD doors) until the first individual returns (if SSF activation not required)

C. 1. four

2. a method of communication is established to ensure the BOP/SSF operator outside the Control Room can be informed if the SSF needs to be activated D. 1. four
2. another qualified licensed operator with no other concurrent duties relieves the BOP/SSF operator and stays within the Unit 1 & 2 Control Room (inside the CAD doors) until the first individual returns (if SSF activation not required)

Page 68 of 75

Oconee Nuclear Station Question:

  • 69 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

  • Startup in progress with extra licensed operators in Control Room
  • An SRO has been assigned oversight of the startup as the Reactivity Manager
  • The OATC is training an individual on OJT from License Class In accordance with AD-OP-ALL-0203 (Reactivity Management)...
1) (1) withdrawal(s) of Safety Rods is/are required to be announced to the Reactivity Manger PRIOR to Rod withdrawal.
2) the OATC _(2)_ allowed to peer-check the withdrawal of Safety Rods being done by the trainee.

Which ONE of the following completes the statements above?

A. 1. ALL

2. is B. 1. ALL
2. is NOT C. 1. ONLYthefirst
2. is D. 1. ONLY the first
2. is NOT Page 69 of 75

Oconee Nuclear Station Question:

  • 70 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor in MODE 5
  • An electric valve is being tagged closed with its breaker open In accordance with OMP 1-02 (Rules of Practice)...
1) When closing the electric valve from the Control Room for the tagout, a peer check (1) required.
2) Diverse verification of the breaker position in the OPEN position _(2)_ require direct observation of the breaker position by opening the breaker cubicle door.

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 70 of 75

Oconee Nuclear Station Question: 71 1LT46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

  • Reactor power = 35% stable
  • RCS Pressure = 2150 psig stable
1) The low Pressurizer level cutoff of Pressurizer heaters occurs when Control Room indication of Pressurizer level reaches _(1 )_.
2) Based on the above conditions, if Pressurizer level is above the low level cutoff setpoint and all Pressurizer heaters Manually energized, an RPS trip on high RCS pressure (2)_ occur.

Which ONE of the following completes the statements above?

ASSUME NO ADDITIONAL OPERATOR ACTIONS A. 1. 80

2. will B. 1. 85
2. will C. 1. 80
2. will NOT D. 1. 85
2. will NOT Page 71 of75

Oconee Nuclear Station Question:

  • 72 IL T46 ONS RO NRC Examination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor in MODE 6
  • RB Purge in progress Current conditions:
  • IRIA-47 (RB Particulate) in HIGH alarm
  • API18, Abnormal Release of Radioactivity is initiated
1) RB Purge (1)_ automatically terminate.
2) AP/1 8 _(2)_ ensure the evacuation of non-essential personnel from the RB A. 1. will
2. does B. 1. will
2. does NOT C. 1, will NOT
2. does D. 1. will NOT
2. does NOT Page 72 of 75

Oconee Nuclear Station Question:

  • 73 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 3 conditions:

  • 3A GWD gas tank release in progress
  • Release is at 2/3 Station Limit
1) 1 RIA-45 (Norm Vent Gas) High and Alert setpoints will be set at (1) the normal 1/3 Station Limit as listed in PT/O/A/230/OO1 (Radiation Monitor Check).
2) If 3RIA-45 High alarm setpoint is reached, the 3A GWD gas tank release _(2)_

AUTOMATICALLY termi nate.

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 73 of 75

Oconee Nuclear Station QuestIon: 74 ILT46 ONS RO NRC Examination (1 pod)

Given the following Plant conditions:

  • Unitl=100%
  • UnIt 2 has an event in progress that requires 8SF ASW activation
1) In accordance with OMP 2-1 (Duties and Responsibilities of On-Shift Operations Personnel), the _(1)_ BOP will be dispatched to perform AP125 (8SF Activation).
2) Prior to leaving the Control Room for the 5SF, AP125 directs tripping _(2)_

RCP(s).

Which ONE of the following completes the statements above?

A. 1. Unitl

2. ALL B. 1. UnitI
2. aUbutONE C. 1. Unit2
2. ALL D. 1. Unit2
2. all but ONE Page 74 of 75

Oconee Nuclear Station Question: 75 1LT46 ONSRONRCExamination (1 point)

Given the following Unit 1 conditions:

Initial conditions:

  • Reactor in MODE 6
  • LPI aligned in NORMAL Mode
  • RCS level = 75 on LT-5 stable
  • 1 B LPI Pump tagged out Current conditions:
  • RCS level = 72 on LT-5 decreasing
1) In accordance with OP/11A111041004 (LPI System), the _(1)_ LPI pump will be in operation?
2) In accordance with AP/26 (Loss of Decay Heat Removal), ALL LPI pumps _(2)_

required to be secured in an effort to identify the leak location?

A. 1.1C

2. are B. 1.1A
2. are C. 1.1C
2. are NOT D. 1.1A
2. are NOT Page 75 of 75

Examination KEYfor: 1LT46 ONS RO NRC Examina Question Answer Number 1 B 2 B 3 C 4 B 5 B 6 C 7 D 8 B 9 D 10 A 11 D 12 A 13 A 14 A 15 A 16 D 17 C 18 A 19 C 20 C 21 C 22 D 23 A 24 A 25 A Printed 12/18/2014 10:53:30 AM Page 1 of 3

Examination KEYfor: 1LT46 ONS RO NRC Examina Question Answer Number 26 A 27 B 28 B 29 B 30 D 31 D 32 D 33 C 34 C 35 D 36 C 37 A 38 C 39 D 40 C 41 C 42 B 43 B 44 C 45 D 46 C 47 B 48 B 49 A 50 B Printed 12/18/2014 i0:S3:3IAM Page 2 f3

Examination KEYfor: 1LT46 ONS RO NRC Examina Question Answer Number 51 D 52 D 53 C 54 B 55 D 56 A 57 A 58 D 59 B 60 B 61 A 62 A 63 D 64 D 65 D 66 B 67 D 68 C 69 B 70 D 71 C 72 C 73 D 74 C 75 B Printed 12/18/2014 10:53:30 AM Page 3 f3

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