DU0-001 · Question #29
What are three core components of a standby generator? (Choose three.)
The correct answer is C. Governor. A standby generator has three core components: a prime mover (E), an alternator (D), and a governor (C). The prime mover is the engine that converts fuel into mechanical rotation. The alternator converts that mechanical energy into alternating current electricity. The governor…
Question
Options
- AInverter
- BRectifier
- CGovernor
- DAlternator
- EPrime mover
How the community answered
(45 responses)- A2% (1)
- B7% (3)
- C71% (32)
- D4% (2)
- E16% (7)
Explanation
A standby generator has three core components: a prime mover (E), an alternator (D), and a governor (C). The prime mover is the engine that converts fuel into mechanical rotation. The alternator converts that mechanical energy into alternating current electricity. The governor regulates engine speed to maintain a stable output frequency, typically 60 Hz.
An inverter (A) is not part of a standby generator - it converts DC power to AC and is found in solar or battery-backup systems. A rectifier (B) does the opposite, converting AC to DC, and belongs in battery chargers or UPS systems, not in a generator's core design.
Memory tip: Think "PGA" - Prime mover, Governor, Alternator. Like a golfer's PGA tour, these three work together to drive, control, and deliver power.
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