Q29 — Charging Pump Power Supplies
011 PZR Level Control-K2.01 (3.1)
Which ONE of the following completes the statements below?
21 Centrifugal Charging Pump is powered from the _(1)_ 4KV Vital Bus.
22 Centrifugal Charging Pump is powered from the _(2)_ 4KV Vital Bus.
21 Centrifugal Charging Pump is powered from the _(1)_ 4KV Vital Bus.
22 Centrifugal Charging Pump is powered from the _(2)_ 4KV Vital Bus.
A. _(1)_ 2A _(2)_ 2B
B. _(1)_ 2A _(2)_ 2C
C. _(1)_ 2B _(2)_ 2A
D. _(1)_ 2B _(2)_ 2C
▶ Show Answer & Explanation
✓ D. Correct. 21 Centrifugal Charging Pump is powered from the 2B 4KV Vital Bus. 22 Centrifugal Charging Pump is powered from the 2C 4KV Vital Bus.
✗ A. Incorrect but plausible. Since there are three 4KV Vital Busses that power two trains of each type of ECCS pumps, selecting any combination of two separate 4KV Vital busses is plausible.
✗ B. Incorrect but plausible. Since there are three 4KV Vital Busses that power two trains of each ECCS pumps, selecting any combination of two separate 4KV Vital busses is plausible.
✗ C. Incorrect but plausible. Since there are three 4KV Vital Busses that power two trains of each ECCS pumps, selecting any combination of two separate 4KV Vital busses is plausible.
Ref: NOS05CVCS00-17 (CHEMICAL AND VOLUME CONTROL SYSTEM) | LO: 9 — State the power supply to the following Chemical and Volume Control System components: Charging Pumps, Boric Acid Transfer Pumps, Primary Water Pumps | Source: New | Cognitive: Lower
Connections
- Related systems: CVCS, 4KV
- Related exam: 2018 NRC Written Exam