Exam (elaborations)
IYRS ELECTRICAL ABYC EXAM QUESTIONS AND ANSWERS
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IYRS ELECTRICAL ABYC EXAM QUESTIONS AND ANSWERS
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a true RMS voltmeter is required to accurately check output voltage from a
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non-sinusoidal output inverter
On an inverter that does not provide a true sine wave output, low- voltage
troubleshooting must be accomplished using a(n) _______-type DVOM
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True RMS
Sheathed, ungrounded conductors connected directly to a battery must have
overcurrent protection devices located within _______ of connection to the battery
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40 Inches
ABYC standard ________ applies to inverters
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A-31
The RMS multiplier you use to determine harmonic distortion in an AC power supply
is
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1.414
the most common electrical circuit problem in marine applications is
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unwanted open
the maximum allowable voltage drop permitted for panel board DC feeders based
on ABYC is
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3%
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust
section is
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9 inches (225 mm)
the primary by-product of excessive electrical resistance is
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heat
Tech A says that voltage supplied to the rotor controls alternator output voltage. Tech
B says that the alternator output is proportional to rotor voltage. Which Technician is
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