Station Power System Practice

When the 4160VAC and 2400VAC buses are being transferred between Station Power and Startup Power, the WHITE breaker status light above the associated breaker handswitch indicates which of the following?

• Bus control power is available

• Fast transfer is available

• Undervoltage relays are reset

• Charging springs are charged

Load Center 13 (LCC-13) receives power from Bus __(1)__ and can supply alternate power to LCC-90 and LCC-91 in the event of a loss of power to Bus __(2)__.

• (1) 1C

  (2) 1E

• (1) 1E

  (2) 1A

• (1) 1E

  (2) 1D

• (1) 1C

  (2) 1A

The plant is at full power when a fault in the switchyard causes the 'F' Bus to deenergize. Which one of the following describes the effect of the 'F' Bus trip on the plant?

• Both D/Gs start and load their respective buses. Bus 1E is deenergized

• 4160VAC and 2400VAC buses fast transfer to Startup Power

• 2400VAC busses 1C, 1D and 1E fast transfer to Startup Power

• 4160VAC and 2400VAC buses continue to be powered from Station Power

Which of the following combinations of LCCs below CANNOT be crosstied?

• LCC-77 and LCC-78

• LCC-11 and LCC-12

• LCC-19 and LCC-20

• LCC-13 and LCC-14

The plant is in MODE 3 at and being cooled down and depressurized to MODE 5. Which of the following groups of indications represents the FIRST SET of conditions where the plant has reached MODE 4?

• PCS pressure = 475psia Tcolds = 302F, 301F, 300F, 299F

• PCS Pressure = 550psia Tcolds = 399F, 398F, 397F, 399F

• PCS Pressure = 390psia Tcolds = 297F, 299F, 300F, 299F

• PCS Pressure = 400psia Tcolds = 298F, 299F, 296F, 299F

Which of the following would be considered a CORE ALTERATION?

• The Upper Guide Structure is removed from the reactor with the refueling cavity flooded

• The Part Length control rods are inserted all the way into the core after the reactor is tripped and prior to cooling down to MODE 5

• A neutron source is removed from the core during refueling

• The Transfer Car is used to move a new fuel assembly from the Spent Fuel Pool to the Reactor Cavity

The definition of a HEAVY LOAD is a load, _____(1)_____ a fuel assembly, that weighs more than _____(2)_____ pounds?

• Not including, 1300

• Including, 1300

• Not including, 1800

• Including, 1800

Which of the following describes the LCO and APPLICABILITY for the qualified offsite AC circuits in accordance with LCO 3.8.1, "AC Sources - Operating" and LCO 3.8.2, "AC Sources - Shutdown"?

• Two qualified AC circuits are required to be OPERABLE in MODE 1, 2, 3, 4, 5, and 6 and during the movement of irradiated fuel assemblies

• Two qualified AC circuits are required to be OPERABLE in MODE 1, 2, 3, and 4

  One qualified AC circuit is required to be OPERABLE in MODE 5 and 6 and during the movement of irradiated fuel assemblies

• Two qualified AC circuits are required to be OPERABLE in MODE 1, 2, and 3

  One qualified AC circuit is required to be OPERABLE in MODE 4, 5 and 6 and during the movement of irradiated fuel assemblies

• Two qualified AC circuits are required to be OPERABLE in MODE 1, 2, 3, and 4 and during the movement of irradiated fuel assemblies

  One qualified AC circuit is required to be OPERABLE in MODE 5 and 6

With the plant at full power, the following alarm annunciates:

EK-0332, STA POWER TRANSFORMER 1-2 SUDDEN PRESSURE

Which of the following will occur?

• ONLY a transformer deluge actuation

• ONLY a plant trip

• A transformer deluge actuation AND a plant trip

• A transformer deluge actuation AND a plant trip AND automatic start of D/G 1-1 and D/G 1-2

The definition of AXIAL SHAPE INDEX (ASI) is

• The power generated in the upper half of the core less the power generated in the lower half of the core, divided by the sum of the power generated in the upper and lower halves of the core (determined using the EXCORE monitoring system)

• The power generated in the upper half of the core less the power generated in the lower half of the core, divided by the sum of the power generated in the upper and lower halves of the core (determined using the INCORE monitoring system)

• The power generated in the lower half of the core less the power generated in the upper half of the core, divided by the sum of the power generated in the lower and upper halves of the core (determined using the EXCORE monitoring system)

• The power generated in the lower half of the core less the power generated in the upper half of the core, divided by the sum of the power generated in the lower and upper halves of the core (determined using the INCORE monitoring system)