USCG Exam PracticeElectrical basics — generators, motors, and safety
A generator rated at 50 volts or more must be equipped with which instruments under 46 CFR §183.320?
- A. A voltmeter and a wattmeter
- B. An ammeter and a frequency meter only
- ✓ A voltmeter and an ammeter; for AC generators, also a means of measuring frequencyCorrect
- D. A voltmeter, ammeter, and power factor meter for all generator types
Why C is correct
46 CFR §183.320(c) requires a voltmeter and an ammeter for any generator rated at 50 volts or more. For alternating current generators specifically, a means for measuring frequency must also be provided. A power factor meter is not required by this section.
Cited:46 CFR §183.320