GA, DS, DW (Service Gas, Domestic Service, Demin Water)

Question 1

In the event that both the Demineralized Water Pumps or the Demineralized Water Tank are unavailable:

A. Demineralized Water is unavailable for Condensate Storage Tank make-up, CST level must be monitored more closely
B. The Demineralized Water system can be supplied directly from the booster pump at WRF at a lower pressure
C. The Demineralized Water system can be supplied directly from the booster pump at WRF at a higher pressure
D. Condensate Storage Tank make-up is available, but the rest of the Demineralized Water system is unavailable

Answer 1

B. The Demineralized Water system can be supplied directly from the booster pump at WRF at a lower pressure

Question 2

Which of the following systems provide quench water for the blow down stack?

A. Domestic Service Water
B. Demineralized Water
C. Turbine Cooling Water
D. Condensate Service Header

Answer 2

A. Domestic Service Water

Question 3

Which of the following will result in a Liquid Nitrogen Pump TRIP?

A. Active nitrogen storage bank drops to 1400 psig
B. Active nitrogen storage bank rises to 2400 psig
C. Liquid storage tank level of 75”
D. High pressure nitrogen header pressure of 700 psig

Answer 3

B. Active nitrogen storage bank rises to 2400 psig

Question 4

Why is High Pressure Nitrogen supplied to containment?

A. Reactor Drain Tank cover gas
B. Steam Generator cover gas
C. Emergency operation of air operated valves
D. Safety Injection Tank pressurization

Answer 4

D. Safety Injection Tank Pressurization

Question 5

How will the Hydrogen Supply system respond to a pipe break at the 140” of the turbine building?

A. Both the active and reserve banks will depressurization
B. Only the active hydrogen bank will depressurization
C. The excess flow valve would seat and hydrogen could not be restored to main turbine until the pressure across the valve is equalized
D. The hydrogen active and reserve regulators will sense a high flow condition and secure hydrogen supply

Answer 5

C. The excess flow would seat and hydrogen could not be restored to main turbine until the pressure across the valve is equalized