Main Feed

Question 1

Unit 1 is at 100% power with all systems in a normal lineup.
Steam Generator water levels are stable at 50% NR.
‘A’ and ‘B’ Main Feed Pump speed is closest to:
A. 4155 rpm
B. 4500 rpm
C. 4900 rpm
D. 5500 rpm

Answer 1

C

Question 2

Unit 1 is at 100% power with all systems in a normal lineup.
NNN-D15 faults and is de-energized.
With no operator action, the ___(1)___ Main Feed Pump is no longer feeding steam generators, and Reactor Power Cutback has ___(2)___.
A. (1) A; (2) not actuated
B. (1) A; (2) actuated
C. (1) B; (2) not actuated
D. (1) B; (2) actuated

Answer 2

A

Question 3

The minimum speed for a Main Feed Pump running in automatic is:
A.  0 rpm
B.  1000 rpm
C.  3600 rpm
D.  4155 rpm

Answer 3

D

Question 4

Which of the following will cause a trip of the ‘A’ Main Feed Pump?
A. Condenser pressure of 11.5” HgA
B. Turbine speed of 5800 rpm
C. Feed pump discharge pressure 1810 psig
D. Feed pump suction pressure of 260 psig

Answer 4

C

Question 5

Unit 2 is at 100% power with all systems in a normal lineup.
Steam Generator water levels are stable at 50% NR.
‘A’ Main Feed Pump mini-flow recirculation valve is currently ___(1)___. If the ‘A’ Main Feed Pump is tripped from B06, the mini-flow recirculation valve will ___(2)___.
A. (1) closed; (2) close
B. (1) closed; (2) open
C. (1) open; (2) close
D. (1) open; (2) open

Answer 5

A