Q22 — DC Battery SBO Duration
063 DC Electrical Distribution System-A1.01 (2.5)
Given:
Which ONE of the following completes the statement below?
During a STATION BLACKOUT and with the vital batteries discharging at their MAXIMUM rate, the vital batteries will supply DC power to emergency equipment for AT LEAST ___ hour(s).
Which ONE of the following completes the statement below?
During a STATION BLACKOUT and with the vital batteries discharging at their MAXIMUM rate, the vital batteries will supply DC power to emergency equipment for AT LEAST ___ hour(s).
A. 1
B. 2
C. 4
D. 6
▶ Show Answer & Explanation
✓ B. Correct. During a STATION BLACKOUT, the vital batteries will supply DC power to emergency equipment for AT LEAST 2 hours.
✗ A. Incorrect but plausible. All of the distractors are time frames that are close to 2 hours. Therefore, all of the distractors are plausible.
✗ C. Incorrect but plausible. All of the distractors are time frames that are close to 2 hours. Therefore, all of the distractors are plausible.
✗ D. Incorrect but plausible. All of the distractors are time frames that are close to 2 hours. Therefore, all of the distractors are plausible.
Ref: NOS05DCELEC-09 (DC ELECTRICAL SYSTEMS) | LO: Describe the design bases of the DC Electrical System | Source: Bank (ILOT 1601 NRC RO Q28) | Cognitive: Lower
Connections
- Related systems: DC Power
- Related exam: 2019 NRC Written Exam