Secondary sampling system Flashcards
1
Q
What chemicals are added to the FW system and why?
A
Hydrazine to control O2, also contributes to pH control.
Also add MPA for pH control.
2
Q
Effect of loss of IA on system:
A
SD002s, SD005s, (Blowdown isolation and blowdown sample isolation) and PS179s (blowdown to primary sample panel) Close
3
Q
Blowdown is cooled by two stages of coolers. The rough stage sheds heat to ____ and the fine stage sheds heat to _____.
A
WS
Sampling chilled water system
4
Q
How does phase A signal affect this system?
A
SD002s and SD005s Close
5
Q
____ cools the fine and ____ cools the rough HX.
A
WO
WS
6
Q
PS179s close on ____ or _____.
A
Hi radiation signal
or
Loss of IA
7
Q
LCO 3.7.3 secondary activity spec
Modes
A
<=0.1 uci/g
Modes 1-4
