Gaseous radwaste

Question 1

____provides cover gas for HUTs and ____ provides a backup at _____#.

Answer 1

One gas decay tank
Nitrogen
0.7#

Question 2

____ and ____ are the major isotopes of concern in the event of a single GDT rupture.

Answer 2

Kr-85 and Xe-133

Question 3

What provides cooling for the waste gas compressor seal water?

Answer 3

CC

Question 4

Separator tank discharge AOV auto opens when pressure builds to _____.

Answer 4

60#

Question 5

What automatic function is controlled by 0PR02J?

Answer 5

GWRCV014 gas release valve trips shut

Question 6

What interlocks are required to cause the 0GW014 light to be lit?

Answer 6

Rad level <setpoint

Valve CS in open

Valve positioner>0% demand

Question 7

What will cause an auto swap of in service GDT?

Answer 7

GDT pressure of 95#

Question 8

Where are gaseous releases directed?

Answer 8

AB exhaust plenum

Question 9

Design basis

Answer 9

1. full power with 1% fuel failure
2. Hold for 45 day decay time
3. Tank rupture releasing isotopes of concern

Question 10

The concentration of oxygen in the WASTE GAS HOLDUP SYSTEM
shall be _____by volume whenever the hydrogen concentration
is _____ by volume.

Answer 10

<=2% by volume
whenever hydrogen concentration is
>4% by volume

Question 11

The quantity of radioactive material, excluding tritium and
dissolved or entrained noble gases, shall be limited to the
following:
a. Primary Water Storage Tank_____
b. Outside Temporary Tank _____

Answer 11

PWST ≤ 2000 Curies

Outside temporary tank ≤ 10 Curies

Question 12

Gas decay tank is protected by a ______ relief valve?

Answer 12

150#

Question 13

The limit for curie content storage of a gas decay tank is ______ and that prevents dose rates from exceeding ____ on a release at site boundary.

Answer 13

50000 Curies
0.5rem gamma

Question 14

Which flowpaths vent to the cover gas header?

Answer 14

U1 and 2 PRT and RCDT
SRST
Gas analyzer