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LOIT Systems 2018 > SQ: Radiation Monitoring > Flashcards

SQ: Radiation Monitoring Flashcards

1
Q

What are the ESFAS related signals that are generated by SQ?

A

CREFAS
FBEVAS
CPIAS

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2
Q

What are the non-safety related automatic functions generated by SQ?

A

Through Filter Mode in AR
GR isolation
AS condensate to LR

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3
Q

What is the power supply to the safety related radiation monitors?

A

PN

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4
Q

From where can you read radiation monitors?

A

Locally
RMS workstation
ERFDADS

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5
Q

What does Green signify in SQ?

A

Normal Reading

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6
Q

What does Yellow signify in SQ?

A

Alert Reading

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7
Q

What does Orange signify in SQ?

A

Problem

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8
Q

What does Red signify in SQ?

A

Alarm Reading

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9
Q

Which radiation monitors are covered under the ODCM?

A 
Waste Gas (RU-12)
Plant Vent (RU-143/144)
Fuel Building Vent (RU-145/146)
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10
Q

What is RU-1

A

Containment Atmosphere

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11
Q

What are RU-2 and RU-3?

A

EW System Radiation Monitors

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12
Q

What are RU-4 and RU-5?

A

SG Blowdown

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13
Q

What is RU-6?

A

NC System Monitor

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14
Q

What is RU-7?

A

AS Condensate Receiver Tank monitor

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15
Q

What is RU-12?

A

Waste Gas Decay Tank Discharge

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16
Q

What is RU-14?

A

Radwaste Building Vent

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17
Q

What is RU-15?

A

Waste Gas Area combined vent

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18
Q

What is RU-17?

A

Incore Instrument Containment area monitor

- De-energized while at power!

19
Q

What is RU-18?

A

Control Room Area monitor

20
Q

What is RU-19?

A

New Fuel Area monitor

21
Q

What are RU-29 and RU-30?

A

Control Room Vent Intake

22
Q

What is RU-31?

A

Spent Fuel Pool Area monitor

23
Q

What is RU-33?

A

Refueling Machine Area monitor

24
Q

What is RU-34?

A

Refueling Purge Exhaust monitor

25
Q

What are RU-37 and RU-38?

A

Power Access Purge Area monitors

26
Q

What are RU-139 and RU-140?

A

Rad monitors on MS lines in MSSS

27
Q

What is RU-141?

A

Condenser Vacuum/Gland Seal monitors

28
Q

What is RU-142A-D?

A

Rad monitors on MS lines inside Turbine Building

29
Q

What are RU-143 and RU-144?

A

Plant Vent Low/High Range Monitor

- Also monitors humidity

30
Q

What are RU-145 and RU-146?

A

Fuel Building Low/Mid/High Range Monitors

31
Q

What are RU-148 and RU-149?

A

High Range Containment Area Monitors

32
Q

What are RU-150 and RU-151?

A

Primary Coolant Monitors

33
Q

What is RU-155D?

A

Letdown Line Monitor

34
Q

What ESFAS Signal will isolate RU-1?

A

CIAS

35
Q

What is the basis for RU-1?

A

It will detect a 1 gpm leak in Containment in 1 hour

36
Q

Which RU monitor will be the first to alarm during SGTR

A

RU-7

37
Q

When RU-7 reaches its setpoint, what happens?

A

AS Condensate is directed to the LRS

38
Q

What signal is generated when RU-29 or RU-30 reaches its setpoint?

A

CREFAS

39
Q

What signal is generated when RU-31 reaches its setpoint?

A

FBEVAS

40
Q

What happens when RU-37 or RU-38 reaches its hi-hi setpoint?

A

CPIAS

41
Q

What is the basis for RU-141?

A

1 gpm SGTR with 1% failed fuel

42
Q

What is the basis for RU-142A-D?

A

30 gallon per day upper tube bundle leak on the hot side

43
Q

What will RU-143/RU-145 and RU-144/RU-146 do when they reach their max range?

A

They’ll start their associated high range monitors and then shut down.

44
Q

What is the basis for the alarm on RU-155D?

A

Based on 1% failed fuel. Has a “keep alive source” so that rad levels have to reach >10 mrem/hr before they register.

LOIT Systems 2018 (33 decks)

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