Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

NLO - Systems > RD- Radioactive Drains > Flashcards

RD- Radioactive Drains Flashcards

1
Q

Where are the drains that are collected by the RD system sent to for processing, minus the reactor cavity sump and Decon and laundry facility sump?

A

Liquid Radwaste TDS holdup tanks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The RD system is used to detect leakage from what areas of the plant?

A

RCS, Refueling Pool, ESF equipment and the Spent Fuel Pool

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Lube water to the [RD] sump pumps seals?

A

DW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What system operates the RD Containment Isolation valves?

A

Instrument Air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What system supplies power to the Sump Pump motors?

A

NH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What provides power to the DW solenoid valves supplying cooling water to all the sump pumps?

A

NK

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where is the RD system vented to?

A

HR, HA, HS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the maximum usable volume in the Reactor Cavity Sump?

A

520 gallons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where is the Reactor Cavity Sump vented to?

A

Containment Building atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where is the Reactor Cavity Sump located?

A

55’ containment building, accessed from the 80’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the two Reactor Cavity Sump Pumps rated for?

A

100% each, delivering 30 gal/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the maximum usable volume of the East and West Containment Sumps? Where are they vented to?

A

390 gallons

containment building atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Where is the “overflow” line located in the East/West Containment Sumps? How many pumps are in each sump?

A

About 3 inches above the hi-hi level

one per sump

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The West Containment sump collects what drains through how many penetrations?

A

One 4” penetration receiving effluent from floor drains, equipment drains, refueling pool and the refueling pool liner plate leak detector compartment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The East Containment sump collects what drains through how many penetrations?

A

Two penetrations: one is a 4” penetration receiving effluent from floor drains, equipment drains, and the refueling pool and the second is a 2.5” penetration receiving effluent from the Reactor Cavity Sump Pumps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where are the Containment Radwaste Sumps located?

A

80’ Containment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the capacity of the Containment Sump Pumps?

A

100% capacity each, capable of delivering 50 gpm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the maximum usable volume of the ESF sumps? How many trains of RD ESF drain subsystems are there?

A

1320 gallons

two, A and B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How many penetrations does each ESF sump have and where do they come from?

A

Five penetrations

Shutdown cooling heat exchanger room, Containment Spray Pump room, High Pressure Safety Injection Pump room, Low Pressure Safety Injection room, and pipe chase room

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Where do the ESF sumps vent to? What type of cover plate do these sumps have?

A

Aux Building HVAC exhaust duct

gas tight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Where are the ESF sumps located?

A

40’ Aux building

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What lubricates the ESF sump pumps?

A

DW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the capacity of the ESF sump pumps? Where do they pump to?

A

100% capacity each and capable of delivering 50 gpm

Liquid radwaste TDS holdup tanks

24
Q

What is the maximum usable volume of the Non-ESF sump?

A

880 gallons

25
There’s a 4” penetration that directs non-ESF drains and equipment drains throughout the Aux building to the non-ESF sump. What is directed through the 6” penetration?
Equipment Drain Tank relief valve
26
Where is the Non-ESF sump located? Where is it vented to?
40’ Aux Building Aux. building HVAC exhaust duct
27
What are the Non-ESF sump pumps capacities?
100% capacity each and capable of delivering 50 gpm
28
What is the maximum usable volume of the Radwaste Building Sump? Where is it vent to?
920 gallons radwaste hvac exhaust duct
29
Besides Radwaste Building floor drains and equipment drains, what else drains directly to the Radwaste Building Sump?
Water in Charging Pump Oil Drain Tank after transferring oil to a 55 gallon drum
30
Where is the Radwaste Building Sump located?
88’ Radwaste Building
31
What is the capacity of the Radwaste Building Sump pumps? Where do they pump to?
100% capacity each and capable of delivering 50 gpm LR TDS holdup tanks
32
What is the maximum usable volume of the Fuel Building Sump? Where is it vented to?
1700 gallons fuel building atmosphere
33
How many penetrations are there in the Fuel Building Sump and where do they come from?
Four: floor drains/equipment drains in fuel building cask decontamination pit fuel pool liner plate leak detector compartment the cask pit
34
Where is the Fuel Building Sump located?
95’ Fuel Building
35
What is the capacity of the Fuel building sump pumps? Where do they pump to?
100% capacity and capable of delivering 100 gpm Liquid radwaste TDS holdup tanks
36
What is the maximum usable volume of the Holdup Tank Area Sump? Where is it vented to?
1660 gallons outside atmosphere
37
What two pipe penetrations go into the Holdup Tank Area Sump?
line from the Reactor Makeup Tank, CVCS holdup pump room, and refueling water tank overflows line from the holdup tank overflow
38
Where is the Holdup Tank Area Sump located? Where does it pump its contents to?
100’ outside Radwaste Building near the Holdup Tanks in the RCA yard plant east side of the CVCS HUT LR TDS holdup tanks
39
What is the capacity of the Holdup Tank Area Sump pumps?
100% capacity each and capable of delivering 150 gpm
40
What is the maximum usable volume of the Decontamination Facility Sump?
790 gallons
41
How many penetrations does Decontamination Facility Sump have?
Two 4” penetrations
42
Where is the Decontamination Facility Sump located?
Unit 1, decontamination side of the building
43
Where does the Decontamination Facility Sump pump to?
Chemical Drain Tanks
44
What is the capacity of the Decontamination Facility Sump Pumps?
100% capacity each and capable of delivering 50 gpm
45
How is the plant affected by a loss of RD system?
Sumps would eventually overflow and become a radioactive spill. If level gets high enough it could cause a loss of safety equipment
46
What is the purpose of the RD (radioactive drains) system? Where are the collected wastes sent?
The radioactive waste drain system collects and transports noncorrosive, radioactive, or potentially radioactive liquid wastes from equipment and floor drains of the Containment, aux, fuel, radwaste buildings, MSSS, yard holdup tank area, decontamination and laundry facility(unit 1 only) Liquid radwaste
47
Where does the RD containment inboard isolation valve get power from?
PH
48
How is the RD system affected by a CIAS?
RD containment isolation valves close and containment east and west sump pumps stop
49
Describe the level indication and alarms for the reactor cavity sump and containment sumps.
level continuously monitored by control room alarms generated on high level, rate of level increase greater than 1gpm for an hour, and excessive pump run time
50
Where does the reactor cavity sump pump to?
the east containment sump
51
How often are the sump run times, located on the MCC breakers, logged by the Aux. building AO?
shiftly
52
What are the maximum normal and abnormal leakages to each ESF sump?
normal- 10 gallons per day abnormal- 50 gallons per day
53
When does DW water start cooling the RD system sump pump bearings?
when a pump starts
54
What can potentially cause RD system sump pump run times to become excessive?
discharge line check valves become stuck open so when the alternate pump starts, much of the sump will just recycle until the hi-hi level comes in and starts the second pump
55
Where does the decontamination and laundry facility sump pump to?
Chemical drain tank

NLO - Systems (70 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions