ELECTRICAL ENGINEERING PRACTICE EXAM
QUESTIONS AND ANSWERS.
A flickering ground detection lamp on an AC electrical power panel could
be caused by a ________.
Correct Answer -Ground in a coil of an operating pump motor.
Accidental grounds in a shipboard electrical system must be repaired as
soon as possible as they will __________.
Correct Answer -Damage insulation and may cause outages.
A megohmmeter can be used to test for __________.
Correct Answer -An open field coil.
A megohmmeter is connected to each end of an individual motor
winding. A low ohm reading indicates ___________.
Correct Answer -Good continuity.
When the insulation breaks down within a metal encased, portable,
electrical tool, __________.
Correct Answer -Line voltage may be placed on the tool casing making it
dangerous to operate.
When a fluorescent lamp has reached the end of its useful life, it should
be replaced immediately, or the resultant flashing may _________.
Correct Answer -Damage the lamps starter and ballast circuit.
In the illustrated one line diagram, if the turbo generator fails, the diesel
generator _________.