SPTAs Flashcards
Which of the following is not an entry criteria for SPTAs
a. REAC TRIP (CEDMCS BUS UNDV) alarm
b. Rapid Drop in Rx Power
c. CPIDS indicates all rods have inserted
d. RPS Setpoint has been exceeded
c
Unit 1 100% power
Pressurizer pressure is 2400# and rising
The CO presses the manual trip push buttons and the Reactor fails to trip.
What actions should the RO take?
a. open NGN-L03B2 ONLY
b. open NGN-L10B2 ONLY
c. Open NGN-L03B2 and NGN-L10B2 and then close the breakers 5 seconds later.
d. Open NGN-L03B2 AND NGN-L10B2 ONLY
c
What are the 4 ways to BORATE the RCS if all full strength CEAs fail to insert?
a. Appendix 103, Appendix 10, Appendix 11 or SI Flow
b. Appendix 103, Appendix 25, Appendix 11 or SI Flow
c. Appendix 103, Appendix 25, Appendix 11 or Charging flow
d. Appendix 103, Appendix 104, Appendix 105 or SI Flow
a
Unit 1 is at 100% power.
NAN-X03 loses the abilty to supply power.
Unit 1 disables the fast bus transfer for NA bus effected by this failure.
The unit 1 Rx trips.
Assuming all equipment responds as designed which ORP will the CRS most likley transition to at the end of SPTAs?
a. Reactor Trip
b. ESD
c. LOCA
d. LOOP/LOFC
a
Unit 1 trips from 100% power.
The CO reports the main turbine has failed to trip and the main generator output breakers are closed.
What contengency would the CO take?
a. Manually Trip the Generator output breakers and then manually trip the turbine
b. manually trip the turbine ONLY
c. Trip the turbine and close the MSIVs
d. Trip the main generator output breakers ONLY
b
What are the 5 things required to close the DG onto a dead PB bus?
Rated Voltage
Rated Frequency
Normal Supply Breaker open
Alt Supply Breaker open
No 86 Lockouts on the bus
What is the acceptance criteria for pressurizer level in SPTAs?
a. 33-53%
b. 33-65%
c. 10-53%
d. 10-65%
d
Unit 1 has tripped from 100% power.
During SPTAs RCS subcooling is reported to be 30 degrees subcooled?
What contengency action is required?
a. NONE
b. Trip ALL RCPs
c. Trip One RCP
d. Trip One RCP in each loop
a
Unit 1 has tripped from 100% power.
During SPTAs RCS subcooling is reported to be 15 degrees subcooled?
What contengency action is required?
a. NONE
b. Trip ALL RCPs
c. Trip One RCP
d. Trip One RCP in each loop
b
What three items are required for core heat removal acceptance criteria to be met in SPTAs?
a. All RCPs running, Loop Delta T less than 10 degrees, RCS at least 24 degrees subcooled
a. One RCPs running, Loop Delta T less than 10 degrees, RCS at least 24 degrees subcooled
a. All RCPs running, Loop Delta T less than 20 degrees, RCS at least 24 degrees subcooled
a. One RCPs running, Loop Delta T less than 10 degrees, RCS at least 28 degrees subcooled
b
