ML082110224

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Exam 05000338-08-301 Final RO Written Exam with Answer Key and KAs
ML082110224
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 06/30/2008
From:
NRC/RGN-II
To:
References
IR-08-301
Download: ML082110224 (80)
v • d • e


See also: IR 05000338/2008301

Text

Final Submittal

(Blue Paper)

Reactor Operator Written Examination

L/'.s 7' &;= /..;!/fs Y-

HVSMJER- kEy

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: June 24, 2008 Facility/Unit: North Anna/ Units 1 & 2

Region: II Reactor Type: Westinghouse

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 80.00 percent. Examination papers will be collected 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after the examination

begins.

Applicant Certification

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

Applicant's Signature

Results

Examination Value Points

Applicant's Score Points

Applicant's Grade _____ Percent

NORTH ANNA 2008 RO/SRO WRITTEN EXAM

LIST OF KIA's & EXAM ANSWER KEY* FINAL

Page 1 of 3

1 001 G2.4.31 I C

2 003 A4.07 2 B

3 004 G2.2.3 3 A*

4 005 Kl.06 4 A

5 0661<2.825 Ii ~,,, i)t::LE,tGD

6 007 A4.10 6 C

7 007K3.01 7 A

8 008 AA2.24 8 0

9 008 K4.019 0

10 00902.4.4 10 B

11 010 KS.Ol 11 C

12 011 EK2.02 12 C

13 012 K6.0413 C

14 013 Al.07 14 D

15 013 K4.lS 15 D

16 015AK2.07 16 C

17 016Kl.0217 D

18 017 A4.02 18 C

19 022 A2.0619 D

-20 022 AIG.03 20 D j

t~(..t.l~ft* ..... All

21 022 KI.04 21 B

22 025 AAI.12 22 D

23 026 A4.0123 C1 tl<:(.(.,p t tAn:

24 026 AA2.01 24 C

25 026 K2.01 2S D

26 027 G2.2.42 26 A

27 028 K3.0127 A

28 029 EKl.05 28 B

29 029 K4.03 29 B

30 032 AIG.Ol 30 C

31 033 K4.05 31 D

32 036 AAI.0132 D

33 03902.1.3233 B

34 041 K6.03 34 D

35 054 AK3.01 35 C

36 055 A3.03 36 A

37 055 EAl.06 37 A

38 056 AA2.72 38 A

39 057 02.4.45 39 A

40 058

-.

AK.l.OI 40 B

41 059 K1.02 41 C

42 060 AA2.0S 42 C

43 061 G2.4.3 43 A

44 061 K2.0144 A

NORTH ANNA 2008 RO/SRO WRITTEN EXAM

LIST OF KIA's & EXAM ANSWER KEY * FINAL

Page 2 of 3

45 06202.1.274S

46 062 K3.03 46

47 063 K4.0147

48 064 K3~02 48

49 065 AK3.03 49

50 071 A2.02 50

51 073 AI.Ot 51

52 073 K5.02 52

53 976 Al.92 53

54 076 AK2.01 54

55 077 AAt.Ol 55

56 078 A4.01 S6

57 078 K4.03 57

S8 079 Kl.01 58

59 103 A3.0l 59

60 E03 EAl.2 60

61 EOS EIO.4 61

62 E09 EA2.162

63 E12 EK2 ..163

64 E15 EK2.1 64

65 E16 EK3.16S

66 G2.1.20 66

67 G2.1.3767

68 02.1.41 68

69 G2.2.169

70 02.2.3970

71 02.2.771

72 02.3.1572

73 02.3.473

74 02.4.3274

75 02.4.97S

76 005 AA2.02 76

77 005 02.2.40 77

78 006 A2.03 78

79 007 G2.2.44 79

80 008 02.4.8 80

81 012 A2.04 81

82 017 A2.02 82

83 025 AA2.03 83

84 026 02.1.784

as 027 02.2.25 85

86 034 A2.03 86

87 038 EA2.15 87

88 051 02.2.44 88

NORTH ANNA 2008 RO/SRO WRITTEN EXAM

LIST OF KIA's & EXAM ANSWER KEY* FINAL

Page 3 of 3

89 056 G2.2.36 89 A

90 059 G7.L23 90 C

91 061 AA2.04 91 D

92 062 AA2.05 92 -B-A

93 E13 02.4.20 93 A

94 G2.1.494 B

95 02.1.69S B

96 02.2.11 96 --9-G

97 02.2.35 97 B

98 02.3.698 A

99 G2.4.27 99 B

100 02.4.6 100 A

Name

North Anna Power Station

2008 RO EXAM

1.

Given the following:

  • During a Unit 1 load reduction for 1-PT-34.3, Turbine Valve Freedom Test, the

following alarm is received:

1A-D1, ROD CONTROL URGENT FAILURE

  • The Ramp has been held and power is approximately 93°~.
  • Tave is 2.5 0F higher than Tref.
  • Investigation reveals that a Logic Cabinet Oscillator Failure has occurred.

Which ONE of the following describes how this failure will affect the Rod Control

System, including the required action in accordance with the annunciator response

procedure?

A. Rod motion is NOT inhibited in 'Bank Select'; adjust Turbine load or use rods in

Bank Select to match Tave to Tref.

B. All rod motion is inhibited; adjust Turbine load ONLY to match Tave to Tref.

C. All rod motion is inhibited; adjust Turbine load or adjust RCS boron concentration to

match Tave to Tref.

D. Rod motion is NOT inhibited in 'Bank Select'; use rods in Bank Select ONLY to

match Tave to Tref.

1

North Anna Power Station

2008 RO EXAM

2.

Given the following:

Unit 1 cooldown and depressurization is in progress for refueling.

RCS temperature is 195 degrees F and slowly decreasing.

RCS pressure is 360 psig and slowly decreasing.

"A" and "C RCPs are running.

RHR is in service.

The crew observes the following indications:

Sealleakoff flow on all three RCPs is approximately 0.7 gpm and slowly

decreasing.

  • All RCP Pump Radial Bearing temperatures are approximately 130 degreesF

and stable.

  • All RCP Seal Water outlet temperatures are approximately 160 degrees F and

stable.

RCP standpipe alarms are all CLEAR.

Which ONE of the following is correct concerning operation of 1-CH-HCV-1307, RCP

Seal Bypass Isolation Valve?

A. Maintain closed and de-energized to address Appendix-R concerns.

B. Maintain closed and de-energized due to the potential for RCP seal damage.

C. Energize and open the valve to prevent overheating the #1 seals.

D. Energize and open the valve to prevent overheating pump radial bearing.

2

North Anna Power Station

2008 RO EXAM

3.

Which ONE of the following describes a NORMAL Unit 2 BAST alignment?

A. 'C' BAST through 1-CH-P-2D to Unit 2 Boric Acid Filter to Unit 2 BIT/Blender.

B. 'A' BAST through 1-CH-P-2A to Unit 2 Boric Acid Filter to Unit 2 BIT/Blender.

C. 'C' BAST through 1-CH-P-2D through recirc valve 1-CH-HCV-11 04 ONLY and back

to 'c' BAST.

D. 'B' BAST through 1-CH-P-2A to Unit 2 Boric Acid Filter to Unit 2 BIT/Blender.

3

North Anna Power Station

2008 RO EXAM

4.

Given the following:

  • Unit 1 is in Mode 6.
  • The unit has been shutdown for 11 days.

Cavity level is 22 feet above the reactor vessel flange.

  • RCS temperature is 109 degrees F.

RHR Loop 1A is in service.

Which ONE of the following is the MINIMUM RHR flow requirement based on these

plant conditions, including the reason for this minimum flow requirement, in accordance

with 1-0P-14.1, Residual Heat Removal?

A. 2500 GPM; prevents flow induced chatter on SI Accumulator check valves.

B. 3000 GPM; satisfies Technical Specification minimum flow requirements in Mode 6.

c. 3000 GPM; prevents flow induced chatter on SI Accumulator check valves.

D. 2500 GPM; satisfies Technical Specification minimum flow requirements in Mode 6.

4

North Anna Power Station

2008 RO EXAM

5.

Given the following:

Unit 1 is in Mode 4 with a plant cooldown to Mode 5 in progress.

RCS Pressure is 720 psig.

  • RCS temperature is 325°F.

Which ONE of the following states the power supply to 1-SI-MOV-1865A, 'A'

Accumulator Discharge Isolation Valve, and its required breaker position for the current

plant conditions?

480 Volt MCC ...

A. 1J1; breaker is closed.

B. 1H1; breaker is open.

C. 1H1; breaker is closed.

D. 1J1; breaker is open.

5

North Anna Power Station

2008 RO EXAM

6.

Given the following:

  • Unit 1 is in Mode 3.
  • PRT level is 740/0 and INCREASING SLOWLY.
  • PRT pressure is 12 psig and INCREASING SLOWLY.

PRT temperature is 132°F and INCREASING SLOWLY.

  • 1B-H1, PRZ RELIEF TK HI TEMP

1B-G2, PRZ SAFETY W LINE HI TEMP

  • 1B-H2, PRZ POWER RELIEF LINE HI TEMP
  • Acoustic monitor indications are NORMAL.

Which ONE of the following identifies the cause of the conditions above, and includes

the method used to identify the affected component in accordance with annunciator

response procedures?

A. Pressurizer PORV leaking by;

Check tailpipe temperature indication to determine which PORV is leaking.

B. Pressurizer Safety Valve leaking by;

Check tailpipe temperature indication to determine which Safety Valve is leaking.

C. Pressurizer PORV leaking by;

Close block valves one-at-a-time to determine which PORV is leaking.

D. Pressurizer Safety Valve leaking by;

Check tailpipe temperatures with a contact pyrometer to determine which Safety

Valve is leaking.

6

North Anna Power Station

2008 RO EXAM

7.

Given the following:

Unit 1 was initially at 100°A> power at the end of core life.

  • Fuel failures have resulted in increased RCS activity (still within Tech Spec

limits).

  • A spurious Safety Injection (SI) occurred.
  • One train of SI failed to reset from the control room.
  • Multiple PRZR PORV lifts occurred during the recovery.
  • PRT pressure is 115 psig.

Which ONE of the following identifies the current conditions in the Containment

including the raditation monitor indications in the Main Control Room?

A. Containment Sump level constant;

Containment Particulate and Gaseous Radiation Monitors constant.

B. Containment Sump level increasing;

Containment Particulate and Gaseous Radiation Monitors increasing.

C. Containment Sump level increasing;

Containment High Range radiation Monitors constant.

D. Containment Sump level increasing;

Containment High Range Radiation Monitors increasing.

7

North Anna Power Station

2008 RO EXAM

8.

Given the following:

  • Safety Injection is actuated.
  • RCS pressure is 1200 psig.

Containment pressure has peaked at 16 psia and is slowly trending down.

  • Pressurizer level is 100 % *
  • The crew is performing 1-E-0, Reactor Trip or Safety Injection.

Which ONE of the following describes the method used to control RCS temperature

and the approximate Main Steam pressure maintained?

A. Condenser Steam Dumps; 1035 psig.

B. SG PORVs; 1005 psig.

C. SG PORVs; 1035 psig.

D. Condenser Steam Dumps; 1005 psig.

8

North Anna Power Station

2008 RO EXAM

9.

Given the following:

Unit 1 is at 100% power.

  • CC Pump 1A is running and CC Pump 1B is in standby.
  • 4160 V Bus 1H normal feeder is inadvertantly opened.

Which ONE of the following describes the AUTOMATIC operation of CC Pumps for this

event?

A. CC Pump 1B starts 15 to 20 seconds after Bus 1H is reenergized; CC Pump 1A

does NOT re-start.

B. CC Pump 1B starts when Bus 1H is deenergized; CC Pump 1A starts as soon as

Bus 1H is reenergized.

C. CC Pump 1B starts 15 to 20 seconds after Bus 1H is reenergized; CC Pump 1A

starts 15 to 20 seconds after Bus 1H is reenergized.

D. CC Pump 1B starts when Bus 1H is deenergized; CC Pump 1A restarts 15 to 20

seconds after Bus 1H is reenergized.

9

North Anna Power Station

2008 RO EXAM

10.

Given the following:

  • A LOCA has occurred.
  • The crew is performing 1-E-1, Loss of Reactor or Secondary Coolant.
  • The following conditions exist:
  • All SG pressures - 930 psig and slowly trending down.
  • All SG levels - being controlled at 42% NR.
  • PZR level - off-scale high.
  • Containment Pressure - 23 psia.
  • RWST level - 32°A, and decreasing at 1% every 4 minutes.
  • RCS pressure - 1000 psig and stable.
  • Core Exit TCs - 500 degrees F.
  • RVLIS Full Range indication 74°A,.

Based on these indications, which ONE of the following procedure entry requirements

are met?

A. 1-ES-1.3, Transfer to Cold Leg Recirculation

B. 1-ES-1.2, Post-LOCA Cooldown and Depressurization

C. 1-ES-1.1, SI Termination

D. 1-FR-C.2, Response to Degraded Core Cooling

10

North Anna Power Station

2008 RO EXAM

11.

Given the following:

  • The RCS is solid in Mode 5.
  • The crew is preparing to draw a bubble in accordance with 1-0P-1.1, Unit

Startup From Mode 5 At Less Than 140 Degrees F To Mode 5 At Less Than

200 Degrees F.

PZR pressure is approximately 325 psig.

  • PZR temperature is 335 degrees F.
  • RCS temperature is 180 degrees F.

Assuming PZR Heatup rate is at the administrative limit of 1-0P-1.1, approximately

how long will it take to reach saturation conditions in the pressurizer, and what action

will be required when saturation conditions are reached?

A. 60 minutes; the letdown backpressure control valve potentiometer setpoint will be

increased.

B. 30 minutes; letdown flow will be manually increased.

C. 60 minutes; letdown flow will be manually increased.

D. 30 minutes; the letdown backpressure control valve potentiometer setpoint will be

increased.

11

North Anna Power Station

2008 RO EXAM

12.

Given the following:

  • A Large Break LOCA has occurred on Unit 1.
  • The crew has completed transition to 1-ES-1.3, Transfer to Cold Leg

Recirculation.

RWST level is 14 0ft> .

Given these current plant conditions, which ONE of the following identifies the required

ECCS and Charging pump alignment after the initial swapover to Cold Leg

Recirculation is performed in accordance with 1-ES-1.3?

A. Low Head SI Pump flowing to Charging pumps ONLY; Charging Pump suction from

LHSI Pumps.

B. Low Head SI Pump suction from Containment Sump; Charging- Pump suction from

RWST.

C. Low Head SI Pump suction from Containment Sump; Charging Pump suction from

LHSI Pumps.

D. Low Head 81 Pump flowing to Charging pumps ONLY; Charging Pump suction from

RWST.

12

North Anna Power Station

2008 RO EXAM

13.

Given the following:

  • A plant load reduction is in progress.
  • Turbine First Stage Pressure Channel, 1-MS-PT-1446, sticks at 50%.
  • Reactor power is currently 8%.

Which ONE of the following identifies the RPS permissive affected by this transmitter

failure, including the MINIMUM number of RCPs, which if lost, would cause a Reactor

Trip?

A. P-8 cannot be satisfied; the reactor would trip on loss of 2 RCPs.

B. P-7 cannot be satisfied; the reactor would trip on loss of ONLY 1 RCP.

C. P-7 cannot be satisfied; the reactor would trip on loss of 2 RCPs.

D. P-8 cannot be satisfied; the reactor would trip on loss of ONLY 1 RCP.

13

North Anna Power Station

2008 RO EXAM

14.

An event has occurred on Unit 1 resulting in core damage.

Containment pressure peaked at 28 psia.

Containment radiation peaked at 2E+5R/hr.

Current Plant parameters are as follows:

  • RCS temperature is slowly trending down.
  • All SGs are 15°k Narrow Range and rising.
  • AFW flow to each SG is 150 gpm.
  • Containment pressure is 16 psia and slowly trending down.
  • Containment radiation is 1E+4R/hr and slowly trending down.

Which ONE of the following identifies the AFW flow requirements in accordance with

1-E~0, Reactor Trip or Safety Injection, and the Adverse Containment criteria?

A. AFW may be reduced to 50 gpm to each SG since Containment pressure has

decreased to the current value.

B. AFW may be reduced to 50 gpm to each SG since Containment radiation has

decreased to the current value.

C. Total AFW flow must be maintained> 340 gpm because of the Containment

pressure transient.

D. Total AFW flow must be maintained> 340 gpm because of the Containment

radiation transient.

14

North Anna Power Station

2008 RO EXAM

15.

The Unit is at 1OOO~ power.

  • A failure of a semi-automatic tester board has occurred in the Solid State

Protection System resulting in a General Warning condition.

Which ONE of the following describes how the system is designed for the operator to

identify the condition and determine the affected Train?

A. A common Safeguards Trouble annunciator is provided in the control room;

RED GENERAL WARNING light in the affected train's logic cabinet will be

extinguished.

B. Train-specific Safeguards Trouble annunciators are provided in the control room;

RED GENERAL WARNING light in the affected train's logic cabinet will be

extinguished.

c. A common Safeguards Trouble annunciator is provided in the control room;

RED GENERAL WARNING light in the affected train's logic cabinet will be LIT.

D. Train-specific Safeguards Trouble annunciators are provided in the control room;

RED GENERAL WARNING light in the affected train's logic cabinet will be LIT.

15

North Anna Power Station

2008 RO EXAM

16.

Given the following:

  • Unit 1 is at 1OOO~ power.
  • The following alarm is received:

1C-G7, RCP 1A-B-C SEAL LEAK HI FLOW

  • RCP 1B Seal Leakoff flow indicates 6 GPM.
  • RCP 1B No. 1 Seal DP indicates 220 psid and stable.
  • Sealleakoff has lowered on RCP 1A and 1C.
  • Seal Return temperature is rising slowly.

Which ONE of the following identifies the RCP seal problem, including the required

actions in accordance with 1-AP-33.1, Reactor Coolant Pump Seal Failure?

A. RCP #1 seal;

monitor RCP bearing temperatures and initiate a plant shutdown to Hot Standby.

B. RCP #2 seal;

trip the reactor, trip the RCP, and isolate sealleakoff within 5 minutes.

C. RCP #1 seal;

trip the reactor, trip the RCP, and isolate sealleakoff within 5 minutes.

D. RCP #2 seal;

monitor RCP bearing temperatures and initiate a plant shutdown to Hot Standby.

16

North Anna Power Station

2008 RO EXAM

17.

The Unit is currently at 100% and stable. Control group heaters are operating

properly and one additional set of PRZR backup heaters are locked on.

Which ONE of the following malfunctions can occur WITHOUT affecting PRZR heater

status regardless of the position of the Pressurizer Level Control selector switch?

A. PRZR level ChanneI1-RC-LT-460 failing LOW.

B. PRZR level ChanneI1-RC-LT-459 failing HIGH.

C. PRZR level ChanneI1-RC-LT-459 failing LOW.

D. PRZR level ChanneI1-RC-LT-460 failing HIGH.

17

North Anna Power Station

2008 RO EXAM

18.

Given the following:

  • A LOCA has occurred on Unit 1.
  • 1A Charging Pump is tripped.
  • 1B Charging Pump is running.
  • BOTH LHSI Pumps are tripped.

RCPs are running.

RCS pressure is 1600 psig and lowering.

  • Containment pressure peaked at 21 psia and is now slowly trending down.
  • Core Exit TICs are 545 degrees F.

Which ONE of the following identifies the requirement for operation of RCPs in

accordance with 1-E-0, Reactor Trip or Safety Injection, including the reason?

A. Leave RCPs running because forced circulation provides sufficient core cooling.

B. Stop RCPs because continued operation will result in damage to the RCPs due to

loss of cooling water.

C. Stop RCPs because an inadequate core cooling condition could develop if RCPs

were tripped or lost later in the event.

D. Leave RCPs running because ECCS flow is inadequate to ensure adequate core

cooling.

18

North Anna Power Station

2008 RO EXAM

19.

Given the following:

  • Unit 1 is at 100 % power.

The Mechanical Chiller has tripped and cannot be restarted.

  • The crew enters 1-AP-35, Loss of Containment Air Recirculation Cooling.

Which ONE of the following identifies the Containment temperature that requires

entering the action statement for TS 3.6.5, Containment Air Temperature, and also

identifies the required actions to be taken for these plant conditions in accordance with

1-AP-35?

A. 115 degrees F; ensure Containment Air Recirc Fans are running with backdraft

dampers closed.

B. 105 degrees F; ensure steam chiller running or align Service Water to Containment

Air Recirc Fans.

C. 105 degrees F; ensure Containment Air Recirc Fans are running with backdraft

dampers closed.

D. 115 degrees F; ensure steam chiller running or align Service Water to Containment

Air Recirc Fans.

19

North Anna Power Station

2008 RO EXAM

20.

Given the following:

  • Unit 1 is at 100 % power following a refueling outage.
  • The crew has isolated a Letdown line leak in accordance with 1-AP-16,

Increasing Primary Plant Leakage.

  • The crew is preparing to place Excess Letdown in service.

Excess Letdown will be aligned to the VCT.

Which ONE of the following identifies 1) an Excess Letdown Lineup restriction and 2)

the reason why reactor power must be monitored when placing excess letdown in

service in accordance with 1-0P-8.5, Operation of Excess Letdown?

A. Flow through ONLY one loop drain to prevent the possibility of bypassing SI flow to

the 2 intact loops in a design basis accident;

a dilution may occur due to lower boron concentrations in the Excess Letdown

piping.

B. Excess Letdown Pressure must NOT exceed 75 psig to prevent overpressurizing

the VCT;

a dilution may occur due to lower boron concentrations in the Excess Letdown

piping.

C. Excess Letdown Pressure must NOT exceed 75 psig to prevent overpressurizing

the VCT;

a boration may occur due to higher boron concentrations in the Excess Letdown

piping.

D. Flow through ONLY one loop drain to prevent the possibility of bypassing SI flow to

the 2 intact loops in a design basis accident;

a boration may occur due to higher boron concentrations in the Excess Letdown

piping.

20

North Anna Power Station

2008 RO EXAM

21.

Both Units are at 100%.

  • A fault on the Unit 2B station service bus results in a Main Generator Lockout

and Reactor Trip.

  • All Unit 2 Station Service Busses are deenergized due to the feeder breaker to

2B Station Service bus failing to open on the fault.

Which ONE of the following describes the status of Containment cooling to the Units?

A. Containment Air Recire Fans remain running on BOTH Units; Chilled water flow to

Containment Air Recirc Fans is lost on Unit 2 ONLY.

B. Containment Air Recirc Fans remain running on BOTH Units; Chilled water flow to

Containment Air Recire Fans is lost on BOTH Units.

C. Containment Air Recire Fans trip on Unit 2; Chilled water flow to Containment Air

Recirc Fans is lost on Unit 2 ONLY.

D. Containment Air Recire Fans trip on Unit 2; Chilled water flow to Containment Air

Recirc Fans is lost on BOTH Units.

21

North Anna Power Station

2008 RO EXAM

22.

Given the following:

  • Unit 1 has just entered Mode 4 with cooldown to Mode 5 in progress.

RHR Pump 1A is in service.

The OATC notes the following:

  • RHR Pump 1A motor amps indicate 10 and stable.
  • 1-RH-FCV-1605 in automatic indicates 100 % demand.

Which ONE of the following identifies the status of the 1-RH-FCV-1605, RHR Heat

EXchanger Bypass Valve AND predicts the trend on Core Exit TCs?

A. 1-RH-FCV-1605 operating as designed;

Core Exit TCs stable.

B. 1-RH-FCV-1605 failed;

Core Exit TCs lowering.

C. 1-RH-FCV-1605 failed;

Core Exit TCs increasing.

D. 1-RH-FCV-1605 operating as designed;

Core Exit TCs increasing.

22

North Anna Power Station

2008 RO EXAM

23.

Given the following:

RCS pressure is 1000 psig and stable.

Containment pressure is 23 psia and rising slowly.

  • The crew is performing 1-E-0, Reactor Trip or Safety Injection.

Which ONE of the following describes the appropriate operator action and the

SEQUENCE of the action required?

A. COA is not required, however Quench Spray is required; start Quench Spray

Pumps and then open Quench Spray discharge valves.

B. COA is required; manually actuate COA, stop RCPs, verify Quench Spray running,

and verify Containment Isolation Phase B.

C. COA is not required, however Quench Spray is required; open Quench Spray

Discharge Valves and then start Quench Spray Pumps.

D. CDA is required; manually actuate COA, stop CC pumps, verify Quench Spray

running, verify Containment Isolation Phase B, and stop RCPs.

23

North Anna Power Station

2008 RO EXAM

24.

Given the following:

  • The unit is operating at 100°A> power.
  • CC Surge Tank level indication on 1-CC-LI-101 is 50% and lowering.

Which ONE (1) of the following is a possible source of the leak and the source of water

for maintaining CC System inventory?

A. Non-Regenerative Heat Exchanger; Condensate System

B. Non-Regenerative Heat Exchanger; PG water

C. 1A CC Heat Exchanger; Condensate System

D. 1A CC Heat Exchanger; PG water

24

North Anna Power Station

2008 RO EXAM

25.

Given the following on Unit 1:

Reactor Trip due to a LOCA.

Safety Injection was actuated 11 minutes ago.

CDA was automatically actuated 7 minutes ago.

RCS pressure is 1125 psig.

RWST level is 72°A, and lowering.

Which ONE of the following describes the operational status of Inside Recirculation

Spray Pump 1-RS-P-1 B?

A. NOT running; power is available directly from 4160 volt bus 1J.

B. Running; power is supplied directly from 480 volt bus 1J1.

C. Running, power is supplied directly from 4160 volt bus 1J.

,D. NOT running; power is available directly from 480 volt bus 1J1.

25

North Anna Power Station

2008 RO EXAM

26.

Given the following:

  • Unit 1 is operating at 100 % power.
  • An instrument failure causes PORV 1-RC-PCV-1455C to lift.
  • RCS Pressure is recovering at a much slower rate than expected.
  • The operator closes the PORV Block Valve, 1-RC-MOV-1536, and pressure is

now 2100 psig and increasing as expected.

  • All other equipment appears to be operating normally.

Which ONE (1) of the following describes the action(s) required within ONE hour in

accordance with Technical Specifications?

A. Maintain closed and maintain power to 1-RC-MOV-1536.

B. Restore RCS pressure to within limits of the COLR.

C. Verify P-11 interlock is in required state for existing unit condition ..

D. Maintain closed and remove power from 1-RC-MOV-1536.

26

North Anna Power Station

2008 RO EXAM

27.

Given the following:

  • Unit 1 was initially at 100 0/0.
  • Unit 1 experienced a large break LOCA
  • The crew placed 1-HC-HC-1, Hydrogen Recombiner in service on Unit 1

Containment.

The Recombiner tripped within 5 minutes and could not be restarted.

Given these plant conditions which ONE of the following identifies the required

operator response in accordance with 1-E-1, Loss of Reactor or Secondary Coolant?

A. Place 2-HC-HC-1, Hydrogen Recombiner, in service on Unit 1 Containment.

B. Place 1-HC-F-1, Containment Atmosphere Purge Blower, in service on Unit 1

Containment.

C. Place 2-HC-F-1, Containment Atmosphere Purge Blower, in service on Unit 1

Containment.

D. Vent Unit-1 containment through the Auxiliary Building Iodine Filters.

27

North Anna Power Station

2008 RO EXAM

28.

During an ATWS at 1000/0 Reactor Power, EOl conditions, which ONE of the following

actions will insert the MOST negative reactivity within the FIRST 30 seconds of the

ATWS?

A. Initiation of Emergency Boration

B. Manual Turbine Trip

C. Automatic Control Rod Insertion

D. Manual Control Rod Insertion

28

North Anna Power Station

2008 RO EXAM

29.

Given the following:

Both units are in Mode 5.

  • Containment Purge is in progress on each unit in preparation for Containment

entry. \tJ \'\~ b'\)\~ ~uKt;jQ.. S'1Af~~ ~ s f'\,\,~V\\'f\~1

  • Unit 1 Manipulator Crane Area Radialion Monitor RM-1 ~2 indication is rising.
  • Unit 1 Containment Particulate and Gaseous Radiation Monitors, RM-159 and

160 are in alarm.

  • Unit 2 containment conditions are normal.

Which ONE of the following predicts the final status of Containment Purge after ALL

automatic actuations have taken place?

A. Purge Supply Fans 1-HV-F-4A and 1-HV-F-4B NOT running;

Containment Purge Supply isolation valves closed on BOTH units.

B. Purge Supply Fans 1-HV-F-4A and 1-HV-F-4B both running;

Unit 1 Containment Purge Supply isolation valves closed;

Unit 2 Containment Purge Supply isolation valves open.

C. Purge Supply Fans 1-HV-F-4A and 1-HV-F-4B NOT running;

Unit 1 Containment Purge Supply isolation valves closed;

Unit 2 Containment Purge Supply isolation valves open.

D. Purge Supply Fans 1-HV-F-4A and 1-HV-F-4B both running;

Containment Purge Supply isolation valves closed on BOTH units.

29

North Anna Power Station

2008 RO EXAM

30.

Given the following conditions:

  • A reactor startup is in progress and operators have just completed a rod pull.

Both Intermediate Range channels indicate approximately 3 E -11 amps and

trending up.

  • Source Range Channel N-31 indicates 1X103 CPS and is trending down slowly.

Source Range Channel N-32 indicates approximately 6X103 CPS and trending

up slowly.

Which ONE of the following describes the required operator response in accordance

with 1-AP-4.1, Malfunction of Source Range Nuclear Instrumentation, and the reason

for the response?

A. Suspend the reactor startup; due to insufficient overlap between Source Range and

Intermediate Range channels.

B. Continue the reactor startup; the operable Source Range channel is adequate to

provide protection against a boron dilution event.

C. Suspend the reactor startup; with only one Source Range channel operable, there

is inadequate protection against an uncontrolled rod withdrawal.

D. Continue the reactor startup; the operable Source Range channel is adequate to

provide protection against an uncontrolled rod withdrawal.

30

North Anna Power Station

2008 RO EXAM

31.

  • Operators are performing a blended make-up to the Spent Fuel Pool (SFP)

following completion of cask loading operations.

  • A calibration error results in 1-CH-FT-1114, PG Water to blender flow transmitter

indicating less than the actual flowrate.

Which ONE of the following predicts the effect on boron concentration of the blended

flow based on these plant conditions, and identifies the Technical Specification

minimum required boron concentration for the SFP?

A. Boron concentration of the blended flow will be greater than the calculated value;

2600 ppm.

B. Boron concentration of the blended flow will be less than the calculated value;

2500 ppm.

C. Boron concentration of the blended flow will be greater than the calculated value;

2500 ppm.

D. Boron concentration of the blended flow will be less than the calculated value;

2600 ppm.

31

North Anna Power Station

2008 RO EXAM

32.

Given the following:

  • Unit 1 is in Mode 6 with Core offload in progress.
  • A fuel assembly becomes visibly damaged when removed from the core.
  • Containment radiation is rising slowly.
  • The assembly is returned to its location.
  • Containment evacuation has been initiated.

Which ONE of the following identifies 1) the expected indications and 2) the crew's

response in accordance with 0-AP-5.2, MGP Radiation Monitoring System?

A. Vent Stack 'B' Radiation Monitor indication increases;

Verify Containment Purge Exhaust automatically isolates when Vent Stack 'B'

Radiation Monitor exceeds alarm setpoint.

B. Vent Stack 'A' Radiation Monitor indication increases;

Verify Containment Purge Exhaust automatically isolates when Vent Stack 'A'

Radiation Monitor exceeds alarm setpoint.

C. Vent Stack 'A' Radiation Monitor indication increases;

Manually divert Containment Purge Exhaust through the Auxiliary Building Iodine

Filters

D. Vent Stack 'B' Radiation Monitor indication increases;

Manually divert Containment Purge Exhaust through the Auxiliary Building Iodine

Filters.

32

North Anna Power Station

2008 RO EXAM

33.

Which ONE of the following describes the reason for equalizing Main Steam pressure

when opening a Main Steam NRV that has been closed?

A. Prevent damage to valve internals due to excessive DP when opening the NRV.

B. Prevent excessive swell of SG volume.

C. Prevent themal overload of breaker for NRV due to excessive DP when opening the

NRV.

D. Prevent inadvertent Hi Steam Line Differential Pressure SI.

33

North Anna Power Station

2008 RO EXAM

34.

Given the following:

  • Unit 1 is at 100% power.
  • Rod Control is in MAN UAL.
  • All other controls are in AUTO.
  • A Turbine control valve failure results in a load rejection.
  • Tavg - Tref deviation indicates 11 degrees F.
  • 1M-D4, STEAM DUMP ARMED, is illuminated.

Which ONE of the following describes Steam Dump response?

A. Two banks of steam dumps are modulating open;

Two banks of steam dumps are closed.

B. One bank of steam dumps is tripped open;

One bank of steam dumps is modulating open.

C. Four banks of steam dumps are tripped open.

D. Two banks of steam dumps are tripped open;

One bank of steam dumps is modulating open.

34

North Anna Power Station

2008 RO EXAM

35.

Given the following:

Reactor power is 75%.

1B MFW Pump is out of service for pump coupling repairs.

  • The following alarms are received:

1F-F1/F2/F3, SG 1A11 B/1C LEVEL ERROR

  • 1F-D1/D2/D3, STM GEN 1A11B/1C FW<STM FLOW CH III-IV
  • The BOP determines that 1C MFW Pump is tripped.

Which ONE of the following describes the action required, and reason for the action?

A. Reduce load; prevent operating MFW pump motor windings from overheating due

to excessive current.

B. Trip the reactor; prevents damage to operating Main Feedwater Pump due to pump

runout flow and cavitation.

C. Trip the reactor; prevents a challenge to the Reactor Protection System from loss of

secondary heat sink.

D. Reduce load; reduces steam flow to within the capacity of the operating MFW

pump.

35

North Anna Power Station

2008 RO EXAM

36.

Initial Conditions:

  • Condenser Air Ejector Radiation Monitor 1-SV-RM-121 is in Hi-Hi alarm.

Current conditions:

  • Safety Injection is actuated.
  • The crew is performing actions of 1-E-0, Reactor Trip or Safety Injection.

Which ONE of the following describes the alignment of the Condenser Air Ejector

steam supply and exhaust for the current conditions?

A. Exhaust isolated on Phase A isolation; steam supply to air ejectors isolated on

Phase A isolation.

B. Exhaust diverted to Containment on Phase A isolation; steam supply to air ejectors

isolated on Phase A isolation.

C. Exhaust diverted to Containment on HI-HI radiation; steam supply to air ejectors

isolated on HI-HI radiation.

D. Exhaust isolated on HI-HI radiation; steam supply to air ejectors isolated on HI-HI

radiation.

36

North Anna Power Station

2008 RO EXAM

37.

Given the following:

  • A loss of all AC Power has occurred.
  • The crew is performing actions of 1-ECA-0.0, Loss of All AC Power.
  • 1H EDG has failed and CANNOT be restarted.
  • The crew is performing 1-ECA-O.0, Attachment 4, Attempting to restore power to

1H (1 J) Emergency Bus.

  • Attempts to start EDG 1J are in progress.
  • RCP Seal Water Outlet temperature is 200°F and rising at 2°F per minute.

Which ONE of the following describes the action required in accordance with ECA-O.O?

A. Place 1J EDG in MANUAL-LOCAL, press EMER GEN Alarm & Shutdown RESET

Button, and verify Shutdown Relay Status Light is lit. After one minute, place 1J

EDG in MANUAL - REMOTE and determine if the EDG starts.

B. Place Charging Pumps in PTL prior to attempting to start 1J EDG in MANUAL -

LOCAL.

C. Perform Attachment 3, RCP seal isolation, prior to attempting to start 1J EDG in

MANUAL- LOCAL.

D. Place 1J EDG in MANUAL-REMOTE, press EMER GEN Alarm & Shutdown

RESET Button, and verify Shutdown Relay Status Light is lit. After one minute,

place 1J EDG in MANUAL - LOCAL and determine if the EDG starts.

37

North Anna Power Station

2008 RO EXAM

38.

Given the following:

Unit 1 reactor trip from 100 % power.

  • Severe weather causes a Loss of Off-Site power.
  • An electrical fault on 1H Bus has caused a bus lockout.

Which ONE of the following describes the response of the AFW System during this

event?

A. 1-FW-P-3B starts as soon as the 4160 Volt emergency bus is energized;

AFW will be supplied to B SG.

B. 1-FW-P-3B starts approximately 20 seconds after the 4160 Volt emergency bus is

energized;

AFW will be supplied to C SG.

C. 1-FW-P-3B starts approximately 20 seconds after the 4160 Volt emergency bus is

energized;

AFW will be supplied to B SG.

D. 1-FW-P-3B starts as soon as the 4160 Volt emergency bus is energized;

AFW will be supplied to C SG.

38

North Anna Power Station

2008 RO EXAM

39.

The Unit is in MODE 3 preparing to startup.

Loss of vital bus 1-1 occurred and power has not yet been restored.

Station Emergency Manager just declared a Notification of Unusual Event.

Which ONE of the following describes the correct response and required notifications?

A. Monitor RCP temperatures due to loss of CC flow;

Notification of State and Local authorities is required within the next 15 minutes.

B. Monitor RCP temperatures due to loss of CC flow;

Notification of State and Local authorities is required within the next 60 minutes.

C. Monitor SG PORVs due to loss of condenser steam dumps;

Notification of State and Local authorities is required within the next 15 minutes.

D. Monitor SG PORVs due to loss of condenser steam dumps;

Notification of State and Local authorities is required within the next 60 minutes.

39

North Anna Power Station

2008 RO EXAM

40.

Given the following:

  • Unit 1 is at 100% power.
  • All DC Bus voltages are approximately 131 VDC.
  • The following alarm is received in the control room:

1H-B3, BATTERY CHGR 1-111 TROUBLE

  • Battery Charger 1-111 DC Output breaker has tripped and CANNOT be reset.
  • DC Bus 1-111 voltage is 118 volts and lowering.

Which ONE of the following describes the action that will be taken to restore DC Bus

1-111 in accordance with 1-0P-26.4.3, Main Station Swing Battery Chargers 1C-I and

1C-II Operation?

A. Place Swing Battery Charger 1C-I in service with the NORMAL/EQUALIZE switch in

EQUALIZE.

B. Place Swing Battery Charger 1C-II in service with the NORMAL/EQUALIZE switch

in NORMAL.

C. Place Swing Battery Charger 1C-II in service with the NORMAL/EQUALIZE switch

in EQUALIZE.

D. Place Swing Battery Charger 1C-I in service with the NORMAL/EQUALIZE switch in

NORMAL.

40

North Anna Power Station

2008 RO EXAM

41.

Given the following:

The plant is at 25% power.

  • A Condensate header rupture occurs, and the following conditions are present:
  • 10 seconds later SG levels are 30o~ narrow range and lowering.

Reactor power remains at 25°~.

Which ONE of the following describes the operation of the Reactor Protection System

and the Auxiliary Feedwater (AFW) Pumps for this condition?

A. A reactor trip setpoint has NOT been exceeded; AFW Pumps are NOT running.

B. A reactor trip setpoint has been exceeded; AFW Pumps are running.

C. A reactor trip setpoint has NOT been exceeded; AFW Pumps are running.

D. A reactor trip setpoint has been exceeded; AFW Pumps are NOT running.

41

North Anna Power Station

2008 RO EXAM

42.

Given the following:

Release of Waste Gas Decay Tank 1B is in progress.

  • 1-GW-RI-178-1, Process Vent Normal Range Monitor, indication is rising.
  • 1-GW-RI-178-2, Process Vent High Range Monitor, indication is just coming on

scale.

The following alarms are received:

  • 2B-A5, PROCESS VENT VNT STACK A&B LOW RAD MON

ALERT/RAD

  • 2B-B5, PROCESS VENT VNT STACK A&B HI HI RADIATION

Which ONE of the following describes the status of the Waste Gas Decay Tank

release lineup?

A. 1-GW-FCV-101 AND 1-GW-PCV-117 closed when 1-GW-RI-178-1 HI radiation

alarm was received.

B. 1-GW-FCV-101 remained open UNTIL 1-GW-RI-178-2 HI radiation alarm was

received. 1-GW-PCV-117 does NOT receive a close signal.

C. 1-GW-FCV-101 closed when 1-GW-RI-178-1 HI radiation alarm was received.

1-GW-PCV-117 does NOT receive a close signal.

D. 1-GW-FCV-101 AND 1-GW-PCV-117 remained open untiI1-GW-RI-178-2 HI

radiation alarm was received.

42

North Anna Power Station

2008 RO EXAM

43.

Given the following:

  • A LOCA occurred on Unit 1 thirty minutes ago.
  • The crew is performing 1-E-1, Loss of Reactor or Secondary Coolant.
  • 1-RM-RMS-165 and 1-RM-RMS-166, Containment High Range Radiation

Monitors, both have amber and red lights illuminated in the control room.

Which ONE of the following describes the additional indications observed if an actual

high radiation condition exists?

A. SAFE/RESET green light on drawers LIT;

UNIT 1 CONT HI RANGE RADIATION TROUBLE annunciator received on Unit 2.

B. SAFE/RESET green light on drawers LIT;

UNIT 1 CONT HI RANGE RADIATION TROUBLE annunciator received on Unit 1.

C. SAFE/RESET green light on drawers NOT LIT;

UNIT 1 CONT HI RANGE RADIATION TROUBLE annunciator received on Unit 2.

D. SAFE/RESET green light on drawers NOT LIT;

UNIT 1 CONT HI RANGE RADIATION TROUBLE annunciator received on Unit 1.

43

North Anna Power Station

2008 RO EXAM

44.

Which ONE of the following states the power supplies to AFW Discharge MOVs,

1-FW-MOV-100A, B, C?

A. MCC 1J1-2N

B. 1A Semi-Vital Bus

C. 1B Semi-Vital Bus

D. MCC1H1-2N

44

North Anna Power Station

2008 RO EXAM

45.

In accordance with the applicable Fire Contingency Action (FCA) procedure, which

ONE of the following describes actions required to maintain power supply to the Unit-1

remote monitoring excore neutron flux detector (channel one) following a fire in the

given location?

A. Following a fire in the Main Control Room, supplied from Unit-2 vital bus inverter

2-1, which will be disconnected from vital bus 2-1.

B. Following a fire in Unit-1 emergency switchgear, supplied from Unit-2 vital bus

inverter 2-1, which will be disconnected from vital bus 2-1.

c. Following a fire in the Main Control Room, supplied from Unit-1 vital bus inverter

1-1, which will be disconnected from vital bus 1-1.

D. Following a fire in Unit-1 emergency switchgear, supplied from Unit-1 vital bus

inverter 1-1, which will be disconnected from vital bus 1-1.

45

North Anna Power Station

2008 RO EXAM

46.

Given the following:

Both Units are at 1OOO~ power.

  • A Fire in RSST 'A' causes an overcurrent lockout on Transfer Bus D.

Which ONE of the following describes the battery chargers that are temporarily

deenergized?

A. 1-111 and 1-IV

B. 2-1 and 2-11

C. 2-111 and 2-IV

D.1-land1-11

46

North Anna Power Station

2008 RO EXAM

47.

If a loss of Battery Charger 1-1 were to occur, what would be the effect on the operation

of its associated inverter and the vital DC bus?

A. NO static switch automatic transfer; vital DC bus voltage initially decreases by

several volts and then continues to decrease at the same rate over time.

B. Static switch automatic transfer occurs; vital DC bus voltage initially decreases by

several volts and then continues to decrease at a faster rate over time.

C. Static switch automatic transfer occurs; vital DC bus voltage initially decreases by

several volts and then continues to decrease at the same rate over time.

D. NO static switch automatic transfer; vital DC bus voltage initially decreases by

several volts and then continues to decrease at a faster rate over time.

47

North Anna Power Station

2008 RO EXAM

48.

Given the following:

  • A lightning strike has occurred resulting in a loss of the North Anna Switchyard.
  • The 1J EDG Battery and Battery Charger are BOTH lost.
  • 125 VDC Bus 1-1 is lost.
  • A spurious SI occurs.
  • The crew has entered 1-E-0, Reactor Trip or Safety Injection, and manually

actuated SI.

Which ONE of the following describes the reason that no J Train ESF equipment is

running?

A. 1J EDG did NOT start due to loss of the DC fuel oil pump.

B. 1J EDG started, but the EDG output breaker did NOT close due to loss of DC field

flash capability.

C. 1J EDG started and the EDG output breaker is closed, but no control power is

available to 1J Bus load breakers.

D. 1J EDG did NOT start due to loss of power to both start circuits.

48

North Anna Power Station

2008 RO EXAM

49.

Unit 1 is operating at 100°,<<, power.

The following alarm is received:

The OATC notes instrument air pressure is 85 psig and rapidly decreasing.

The crew initiates 1-AP-28, LOSS OF INSTRUMENT AIR.

  • Instrument Air pressure continues to lower.

The SRO directs tripping the reactor and closing Main Steam Trip Valves.

Which ONE of the following identifies the reason for manually closing the Main Steam

Trip Valves?

A. To avoid a High Steam Line Delta P safety injection due to closure of a single main

steam trip valve.

B. To avoid a High Steam Flow safety injection due to closure of a single main steam

trip valve.

C. To avoid a Lo-Lo SG level reactor trip due to closure of all main steam trip valves.

D. To avoid a High PZR Pressure reactor trip due to closure of all main steam trip

valves.

49

North Anna Power Station

2008 RO EXAM

50.

Given the following:

  • The crew is preparing to release WGDT 1B.
  • The maximum allowed flowrate per the release permit is 300 SCFM.

Which ONE of the following describes the preferred method for controlling the WGDT

release flow rate in accordance with 0-OP-23.2, WGDT and Waste Gas Diaphragm

Compressors?

A. 1-GW-FCV-101, WGDT to Process Vent, should be placed in AUTOMATIC and

adjusted to control flow rate at less than 3 SCFM.

B. 1-GW-FCV-1 01, WGDT to Process Vent, should be placed in MANUAL and

adjusted to control flow rate at less than 3 SCFM.

C. 1-GW-FCV-101, WGDT to Process Vent, should be placed in AUTOMATIC and

adjusted to control flow rate at 290 +/- 5 SCFM.

D. 1-GW-FCV-1 01, WGDT to Process Vent, should be placed in MANUAL and

adjusted to control flow rate at 290 +/- 5 SCFM.

50

North Anna Power Station

2008 RO EXAM

51.

Given the following:

  • Each Unit has a containment vacuum pump running.

1-GW-RI-178-3, Process Vent particulate radiation Monitor indication spiked,

causing an ALERT and HIGH alarm to lock in.

Which ONE of the following describes the plant response?

A. ONLY the unit 1 vacuum pump discharge valve will automatically close.

B. ONLY the unit 1 vacuum pump will trip.

c. Both units' vacuum pumps will trip; discharge valves remain open.

D. Both units' vacuum pump discharge valves will automatically close.

51

North Anna Power Station

2008 RO EXAM

52.

Initial Conditions:

Letdown Monitor.

  • Health Physics identified a hot spot in the letdown piping four (4) feet from

1-CH-RM-128 detector.

  • General area survey taken at 1-CH-RM-128 detector was 60 mRem/hour prior to

flushing the hot spot.

  • No Radiation Monitors in alarm.

Current Conditions:

  • Operations flushed the hot spot and relocated it to two (2) feet from

1-CH-RM-128 detector.

  • 1-CH-RM-128 Hi alarm -LIT.

Based on current conditions, which ONE of the following identifies the expected

general area survey at 1-CH-RM-128 detector, and also predicts the response of

Annunciator 1K-D2, if a high alarm subsequently occurs on 1-SV-RM-121, Condenser

Air Ejector Radiation Monitor?

A. 120 mRem/hour;

Annunciator 1K-D2 will remain LIT solid.

B. 240 mRem/hour;

Annunciator 1K-D2 will remain LIT solid.

C. 120 mRem/hour;

Annunciator 1K-D2 will blink and horn will sound until acknowledged.

D. 240 mRem/hour;

Annunciator 1K-D2 will blink and horn will sound until acknowledged.

52

North Anna Power Station

2008 RO EXAM

53.

Given the following:

  • Unit 1 is at 100% power.
  • Three BC fans are running in SLOW speed and the fourth is in standby.
  • Computer alarms are received on several components cooled by the Bearing

Cooling System.

  • Subsequently, the following alarms are received 90 seconds apart:

1A-F4, BASIN TEMP HI/LOW

1T-C1, HYDROGEN TEMP OR CORE MONITOR

  • The crew enters 1-AP-19, Loss of Bearing Cooling Water, and verifies a Bearing

Cooling Pump is running.

Which ONE of the following describes the initial action required in accordance with

1-AP-19?

A. Bypass 1-BC-TCV-104, Generator Hydrogen Cooler TCV, to lower hydrogen

temperature.

B. Place Bearing Cooling in Lake - to - Lake Mode and verify the operation of the Circ

Water System to ensure cooling requirements are met.

C. Start available Bearing Cooling Tower Fans or shift fans to high speed; verify

Bearing Cooling temperatures are decreasing.

D. Verify Generator Hydrogen temperature is above the alarm setpoint and initiate a

plant load reduction until the alarm is clear.

53

North Anna Power Station

2008 RO EXAM

54.

Given the following:

Unit 1 is at 40% power.

  • The B SG has developed a 60 gpd tube leak.
  • Operators are preparing to shutdown the Unit due to fuel failure resulting in ReS

activity increasing at a steady rate.

Based on these plant conditions, which ONE of the following identifies how

1-SV-RM-121, Condenser Air Ejector Radiation Monitor, and 1-MS-RI-191,

"B" SG N-16 Radiation Monitor, will respond as RCS activity increases?

A. 1-SV-RM-121 indication will not change;

1-MS-RI-191 indication will not change.

B. 1-SV-RM-121 indication will not change;

1-MS-RI-191 indication will increase.

C. 1-SV-RM-121 indication will increase;

1-MS-RI-191 indication will not change.

D. 1-SV-RM-121 indication will increase;

1-MS-RI-191 indication will increase.

54

North Anna Power Station

2008 RO EXAM

55.

Given the following:

  • Both units are at 100% power.

Due to voltage and frequency fluctuations on the grid, the crew is performing

actions contained in 0-AP-8, Response to Grid Instability.

  • The crew has verified equipment operability.

Which ONE of the following describes the operation of the Main Generator Voltage

Regulators per 0-AP-8, and the condition that requires the offsite power source to be

declared inoperable?

A. Place voltage regulators in MANUAL; grid voltage decreases to 504 kV

B. Maintain voltage regulators in AUTO; grid voltage increases to 536 kV

c. Place voltage regulators in MANUAL; grid voltage increases to 536 kV

D. Maintain voltage regulators in AUTO; grid voltage decreases to 504 kV

55

North Anna Power Station

2008 RO EXAM

56.

Which ONE (1) of the following describes the operation of Instrument Air Compressor

"1-IA-C-1" when it is placed in AUTO?

A. Compressor will start and run continuously for an indefinite period of time.

Unloader valves will CLOSE when pressure drops to 103 psig. Unloader valves will

OPEN when pressure rises to 109 psig.

B. Compressor will start and run continuously for an indefinite period of time.

Unloader valves will CLOSE when pressure drops to 98 psig. Unloader valves will

OPEN when pressure rises to 106 psig.

C. Compressor will start and load when pressure drops to 98 psig. Compressor will

unload when pressure rises to 106 psig.

D. Compressor will start and load when pressure drops to 103 psig. Compressor will

unload and shut down when pressure increases to 109 psig.

56

North Anna Power Station

2008 RO EXAM

57.

Instrument Air Compressor 1-IA-C-1 has been running loaded for the past 15 minutes.

Which ONE of the following choices completes the following sentence?

Either a OR a will result in a trip of the Air Compressor.

A. Low Oil Pressure;

Cooling System Fault caused by low cooling system DP

B. High Discharge Pressure;

Cooling System Fault caused by high pressure on surge line

C. High Discharge Pressure;

Cooling System Fault caused by low cooling system DP

D. Low Oil Pressure;

Cooling System Fault caused by high pressure on surge line

57

North Anna Power Station

2008 RO EXAM

58.

Given the following:

  • A loss of Instrument Air is occurring on Unit 1.
  • The immediate actions of 1-AP-28, Loss of Instrument Air, are complete.

Instrument Air pressure is 90 psig and dropping slowly.

Which ONE of the following describes the compressor status and the action to be

taken based on the system pressure in accordance with 1-AP-28?

A. All Service Air Compressors running and loaded; all Instrument Air Compressors

running unloaded;

Isolate Instrument Air to Containment by closing 1-IA-TV-1 02A or 1-IA-TV-1 028,

Containment Instrument Air Trip Valves.

8. All Service Air Compressors running and loaded; all Instrument Air Compressors

running unloaded;

Verify Instrument Air supplied to Containment by verifying open 1-IA-TV-1 02A and

1-IA-TV-1028, Containment Instrument Air Trip Valves.

C. All Instrument and Service Air Compressors running and loaded;

Isolate Instrument Air to Containment by closing 1-IA-TV-102A or 1-IA-TV-1 028,

Containment Instrument Air Trip Valves.

D. All Instrument and Service Air Compressors running and loaded;

Verify Instrument Air supplied to Containment by verifying open 1-IA-TV-1 02A and

1-IA-TV-1028, Containment Instrument Air Trip Valves.

58

North Anna Power Station

2008 RO EXAM

59.

Given the following:

  • A LOCA has occurred on Unit 1.
  • The following conditions exist:
  • RCS pressure is 1700 psig.
  • Containment pressure has peaked at 21 psia and is now slowly decreasing.
  • The crew is performing 1-E-0, Reactor Trip or Safety Injection.
  • The RO is performing Attachment 5, Verification of Phase A Isolation.
  • The following valves are identified as OPEN:
  • 1-CH-MOV-1115B, RWST To Charging Pumps Isolation
  • 1-CH-MOV-1289B, Normal Charging Line Isolation
  • 1-IA-TV-102A, Containment Instrument Air Trip Valve

For the current plant conditions, which ONE of the following valves must be

repositioned to place it in the required accident configuration?

A. 1-SW-MOV-108A

B. 1-CH-MOV-1115B

C. 1-IA-TV-102A

D. 1-CH-MOV-1289B

59

North Anna Power Station

2008 RO EXAM

60.

Given the following:

  • A LOCA has occurred on Unit 1.

The crew is performing 1-ES-1.2, Post LOCA Cooldown and Depressurization.

During the SI flow reduction sequence, the following conditions exist:

  • All RCPs are stopped.

Two Charging Pumps are running.

  • RCS pressure is 1100 psig and stable.

RCS Subcooling based on Core Exit TCs is 55°F

Pressurizer level is 44°A>.

Containment pressure is 20.9 psia.

Which ONE of the following describes the response to these conditions in accordance

with 1-ES-1.2, and the reason for this response?

A. Continue the RCS cooldown while stopping one Charging Pump;

RCS subcooling is adequate to prevent loss of subcooling margin when one

Charging Pump is stopped.

B. One Charging Pump may be stopped ONLY IF at least one Low Head SI pump is

running;

RCS subcooling is NOT adequate to prevent loss of subcooling margin when one

Charging Pump is stopped.

C. Maintain PZR level stable or increasing while stopping one Charging Pump;

RCS subcooling is adequate to prevent loss of subcooling margin when one

Charging Pump is stopped.

D. Charging Pumps must remain running with flow aligned to the BIT;

RCS subcooling is NOT adequate to prevent loss of subcooling margin when one

Charging Pump is stopped.

60

North Anna Power Station

2008 RO EXAM

61.

Initial Conditions:

Unit 1 tripped from 100% power due to a loss of all feed flow.

Multiple failures caused a loss of all AFW.

Current conditions:

  • ALL SG Wide Range levels are 12°A> and slowly lowering.

RCS Hot Leg Temperatures are 5600F and slowly lowering.

  • Core Exit TCs are 565 0F and slowly lowering.

Local actions have restored the capability to feed from AFW.

Which ONE of the following describes the method for recovery of Heat Sink in

accordance with 1-FR-H.1, Loss of Secondary Heat Sink, and includes the Basis for

that method?

A. Feed only ONE SG at 100 gpm;

Minimum flow to ensure adequate heat sink.

B. Feed all three SGs at 340 gpm total flow;

Minimum flow to ensure adequate heat sink.

C. Feed all three SGs at 340 gpm total flow;

Ensure symetric cooling during Natural Circulation.

D. Feed only ONE SG at 100 gpm;

Limit thermal stresses to SG components.

61

North Anna Power Station

2008 RO EXAM

62.

Given the following:

  • A loss of off-site power due to a Tornado hitting the switchyard.
  • The crew has stabilized the Unit using 1-ES-0.1, Reactor Trip Response.
  • Operations Management has directed performance of a Natural Circulation

Cooldown.

Which ONE of the following procedures will be used to perform the RCS Cooldown,

and which ONE of the following is the MAXIMUM cooldown rate allowable in

accordance with the EOP that will be used?

A. ES-0.2A, Natural Circulation Cooldown with CRDM Fans; 15 degrees F/Hr.

B. ES-0.2B, Natural Circulation Cooldown without CRDM Fans; 25 degrees F/Hr.

C. ES-0.2B, Natural Circulation Cooldown without CRDM Fans; 15 degrees F/Hr.

D. ES-0.2A, Natural Circulation Cooldown with CRDM Fans; 25 degrees F/Hr.

62

North Anna Power Station

2008 RO EXAM

63.

Upon entry into 1-ECA-2.1, Uncontrolled Depressurization of All Steam Generators, the

crew determines that RCS cooldown rate is 109oF/Hr.

Which ONE (1) of the following identifies the requirement for controlling AFW flow in

accordance with 1-ECA-2.1?

A. Total flow is maintained >340 gpm until ANY SG narrow range level is >11 0/0.

B. Total flow is maintained >340 gpm until ALL SG narrow range levels are >110/0.

c. Flow is reduced to 100 gpm to each SG, and narrow range level in ALL SG's is

controlled at less than 50 0/0.

D. Flow is reduced to 100 gpm to each SG, and narrow range level in ALL SG's is

controlled at greater than 110/0.

63

North Anna Power Station

2008 RO EXAM

64.

Given the following:

  • A small-break LOCA occurred on Unit 1.
  • The crew transitions to 1-E-1, Loss of Reactor or Secondary Coolant.

Which ONE of the following will FIRST cause an ORANGE condition on the

Containment CSF Status Tree?

A. Recirc Spray sump level at 4 feet 10 inches.

B. Annunciator 1J-A6, RX CONT SUMP HI LEVEL, is LIT.

C. Containment circular sump level indication off-scale high.

D. Recirc Spray sump level at 11 feet 10 inches.

64

North Anna Power Station

2008 RO EXAM

65.

A Small Break LOCA has occurred on Unit 1.

The following plant conditions exist:

Complications in recovery have resulted in some core damage.

Containment Pressure peaked at 22 psia and is slowly decreasing.

The team has transitioned to 1-FR-Z.3, Response to High Containment

Radiation Level.

Which ONE of the following describes a strategy provided by 1-FR-Z.3 to mitigate the

condition?

A. Place Containment Atmosphere Filtration System in service.

B. Start Outside Recirc Spray pumps and injecting the CAT.

C. Start Inside Recirc Spray pumps and injecting the CAT.

D. Vent Containment via the Iodine Filter banks.

65

North Anna Power Station

2008 RO EXAM

66.

In Emergency Operating Procedure 1-E-0, Reactor Trip or Safety Injection, steps

designated with an asterisk (*) next to the step are _

these steps apply from the time they are encountered until _

A. Continuous Action Steps;

transition from 1-E-0 is made

B. Decision Making Steps;

the EOP Network is exited

C. Decision Making Steps;

transition from 1-E-0 is made

D. Continuous Action Steps;

the EOP Network is exited

66

North Anna Power Station

2008 RO EXAM

67.

In accordance with OP-AP-300, Reactivity Management, reactor power is required to

be reduced below 100 % PRIOR to performing which ONE of the following evolutions?

A. Reducing Steam Generator Blowdown Flow Rate

B. Performing a blended makeup to the RCS

C. Operating the Steam Driven Aux Feed Pump Turbine

D. Raising Letdown temperature

67

North Anna Power Station

2008 RO EXAM

68. Given the following:

Unit 1 is shut down in preparation for Refueling in accordance with 1-0P-4.1,

Controlling procedure for Refueling.

In accordance with 1-0P-4.1, which ONE of the following choices describes

(1) the method of filling the Refueling Cavity

and

(2) which evolution constitutes the FIRST Core Alteration?

A. (1) Gravity fill from RWST, then LHSI pump

(2) Lifting of the Reactor Vessel Upper Internals

B. (1) LHSI pump ONLY

(2) Lifting of the Reactor Vessel Upper Internals

C. (1) LHSI pump ONLY

(2) Control Rod Drive Shaft unlatching

D. (1) Gravity fill from RWST, then LHSI pump

(2) Control Rod Drive Shaft unlatching

68

North Anna Power Station

2008 RO EXAM

69.

Given the following:

  • An approach to criticality is in progress in accordance with 1-0P-1.5, Unit

Startup from Mode 3 to Mode 2.

Source Range count rate prior to the last rod withdrawal was 4,000 CPS.

  • Source Range count rate is now 7,000 CPS and slowly increasing.

Source Range startup rate is +0.3 OPM and stable.

Two minutes have elapsed since the last rod withdrawal.

Control Bank 'C' is at 11 0 steps.

Which ONE of the following describe the sequence of actions required by 1-0P-1.5?

A. Initiate Boration at greater than or equal to 10 gpm, then trip the reactor.

B. Allow Source Range count rate to stabilize, then continue rod withdrawal.

C. Insert Control Bank '0' to 5 steps, then trip the reactor.

O. Initiate Boration at greater than or equal to 10 gpm, then insert Control Bank '0' to 5

steps.

69

North Anna Power Station

2008 RO EXAM

70.

Given the following:

Unit 1 is at 45% power.

  • Plant startup is in progress.

No other evolutions are in progress

Which ONE of the following parameter values requires Technical Specification action

within ONE (1) hour?

A. Containment air partial pressure 12.9 psia.

B. Quadrant Power Tilt Ratio 1.022.

C. RCS unidentified leakage is 1.20 gpm.

D. RWST temperature 38 degrees F.

70

North Anna Power Station

2008 RO EXAM

71.

Which ONE of the following Periodic Tests is designated as an Infrequently Conducted

or Complex Evolution?

A. Rod operability testing in accordance with 1-PT-17.1, Control Rod Operability.

B. Turbine overspeed trip test in accordance with 1-PT-34.5, Turbine-Generator

Overspeed Trip Test.

C. Turbine valve freedom test in accordance with 1-PT-34.3, Turbine Valve Freedom

Test.

D. Solid State Protection System testing in accordance with 1-PT-36.1A, Train A

Reactor Protection and ESF Logic Actuation Test.

71

North Anna Power Station

2008 RO EXAM

72.

Given the following:

  • Unit 1 is defueled and the fuel assembly insert shuffle is in progress.
  • The new fuel storage area radiation monitor is noted to be pegged high and

unresponsive to source check.

  • The fuel pit bridge radiation monitor indication has not changed.
  • Health Physics reports radiation levels in the fuel building have not changed.

Which ONE of the following describes the FIRST action that will be required in

accordance with 0-AP-5.1, Common Unit Radiation Monitoring System?

A. Verify the fuel building ventilation exhaust is aligned to the charcoal filter.

B. Reset the new fuel storage area radiation monitor by pulling and reinserting fuses.

C. Place the fuel building radiation automatic interlock key switch in DISABLE within

two minutes.

D. Place the fuel building radiation automatic interlock key switch in ENABLE within

two minutes.

72

North Anna Power Station

2008 RO EXAM

73.

Which ONE of the following identifies the 10 CFR 20 annual limit for TEDE and also

identifies the EPIP 4.04 Emergency Exposure Limit for saving valuable equipment?

A. 5 rem;

25 rem

B. 3 rem;

10 rem

C. 5 rem;

10 rem

D. 3 rem;

25 rem

73

North Anna Power Station

2008 RO EXAM

74.

Given the following:

  • Both Units are at 100% power.
  • The following alarm is received on Unit 2 Panel F:
  • UNIT #1 ANN SYS POWER SUPPLY FAILURE
  • The crew enters 1-AP-6, Loss of Main Control Room Annunciators.

Which ONE of the following describes requirements in accordance with 1-AP-6 if the

Unit 1 Annunciators are not immediately restored?

A. NOT required to station an additional operator to monitor the unit-1 PCS;

Log AFD every 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.

B. Station an additional operator to monitor the unit-1 pes;

Log AFD every hour.

C. NOT required to station an additional operator to monitor the unit-1 PCS;

Log AFD every hour.

D. Station an additional operator to monitor the unit-1 PCS;

Log AFD every 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.

74

North Anna Power Station

2008 RO EXAM

75.

Given the following:

  • Unit 1 is in Mode 5.
  • RCS Drain Down to Mid Loop is in progress in preparation for welding on a Hot

Leg opening.

  • RHR Pump 1A is in service.
  • RHR Pump 1B is available.
  • During the drain down, RHR amps and discharge pressure begin fluctuating

erratically.

RCS temperature has risen from 121 degrees F to 127 degrees F.

  • The crew enters 1-AP-11, Loss of RHR, and stops the RCS drain down.

Which ONE (1) of the following describes the next actions that will be required in

accordance with 1-AP-11?

A. Reduce RHR flow to minimum required to maintain RCS temperature and/or raise

RCS level to ensure at least 10 inches above the Hot Leg centerline.

B. Reduce RHR flow to minimum required to maintain RCS temperature and maximize

CC flow to inservice RHR heat exchangers.

C. Stop RHR Pump 1A and initiate Attachment 8, Reflux Boiling to control RCS

temperature.

D. Stop RHR Pump 1A and immediately start RHR Pump 1B, then verify that RCS

temperature stabilizes.

75

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