Condensate Flashcards
Unit 1 is at 100% power with all systems in a normal lineup.
A ground develops on NNN-D12 and it de-energizes.
What is the effect on the feed and condensate systems with no operator action?
A. One condensate mini-flow valve fails open. Main feed pump suction pressure is adequate to prevent a feed pump trip.
B. Two condensate mini-flow valves fail open. Main feed pump suction pressure is adequate to prevent a feed pump trip.
C. One condensate mini-flow valve fails open. Main feed pump suction pressure is inadequate and a feed pump will trip.
D. Two condensate mini-flow valves fail open. Main feed pump suction pressure is inadequate and a feed pump will trip.
D
The condensate service header supplies which of the following loads? A. Main Feed Water Pump seals B. Heater Drain Pump seals C. Condensate Pump seals D. Main Circulating Water Pump cooling
C
Which of the following will cause a trip of the ‘A’ Condensate Pump?
A. Undervoltage on NBN-S02
B. Motor operated suction valve not fully open
C. Low level of 30” in the 2C hotwell
D. Low pump flow of 4000 gpm
C
Unit 1 is at 100% power with all systems in a normal lineup.
Which of the following will cause a trip of the ‘B’ Condensate Pump?
A. Undervoltage on NBN-S02
B. Motor operated suction valve CDN-HV-1 not fully open
C. Low level of 36” in the 2C hotwell
D. Low pump flow of 3500 gpm
D
Normal running amps for a condensate pump is closest to: A. 100 A B. 200 A C. 400 A D. 600 A
C
CDN-HV-1: CDN-P01B suction from #1 Hotwell
CDN-HV-2: CDN-P01B suction from #2 Hotwell
Which of the following conditions will NOT cause a trip of the ‘B’ Condensate Pump?
A. Low level of 30” in the 1C hotwell when CDN-HV-1 and CDN-HV-2 are both open
B. Low level of 30” in the 2C hotwell when CDN-HV-2 is open and CDN-HV-1 is closed
C. CDN-HV-1 and CDN-HV-2 are both closed
D. Undervoltage on NBN-S01
B
Low Pressure Feedwater heater condensate flow will automatically isolate on ___(1)___. When the condition clears, the isolation valves ___(2)___.
A. (1) Hi-Hi heater level; (2) will automatically reopen
B. (1) Hi-Hi heater level; (2) will stop closing and must be manually reopened
C. (1) Lo-Lo heater level; (2) will automatically reopen
D. (1) Lo-Lo heater level; (2) will stop closing and must be manually reopened
B
Condenser Vacuum Breakers are \_\_\_(1)\_\_\_ and fail \_\_\_(2)\_\_\_. A. (1) motor-operated valves; (2) as is B. (1) air operated; (2) closed C. (1) air operated; (2) open D. (1) manual valves; (2) as is
B
RK alarm 5B14A, CNDS SYS TRBL, can be caused by which of the following? A. Condensate Pump Lo Recirc Flow B. Condensate Pump Strainer Lo D/P C. Condensate Demineralizer Lo D/P D. Condensate Service Header Hi Pressure
A & D.
Recirc low flow is 3700 gpm, and CSH header has a hi and low alarm: 100psig high and 50 psig low. Per 40AL-9RK5B. -Nick Hart
Unit 1 is at 58% power following an electrical fault on the ‘B’ Main Condensate Pump.
‘B’ Main Feed Pump tripped on the transient.
‘B’ Condensate Pump suction valves CDN-HV-1 and CDN-HV-2 were closed to prevent pump rotation to allow motor inspection.
A condensate pipe break results in the following alarm windows:
5B16C COND C HOTWELLS LVL TRBL
5B16D HOTWELL 2C LVL LO-LO
Which of the following statements is accurate?
A. ‘A’ Condensate Pump tripped immediately when 5B16D came into alarm.
B. ‘C’ Condensate Pump tripped immediately when 5B16D came into alarm.
C. ‘A’ Condensate Pump did not immediately trip when 5B16D came into alarm, but will trip as 2C hotwell continues to lower.
D. ‘C’ Condensate Pump did not immediately trip when 5B16D came into alarm, but will trip as 2C hotwell continues to lower.
C
The CST level requirement of LCO 3.7.6, Condensate Storage Tank, is based on maintaining the unit in Mode 3 for ___(1)____, followed by a cooldown to SDC entry conditions at ___(2)___,
A. (1) 4 hours; (2) 75 degrees per hour
B. (1) 8 hours; (2) 75 degrees per hour
C. (1) 4 hours; (2) 100 degrees per hour
D. (1) 8 hours; (2) 100 degrees per hour
B
