ABYC Electrical Study 3 - Questions With Full
Explanations
All of the following could cause a conductor to overheat except:
correct answer - insulation temperature rating too low
The minimum battery reserve capacity in hours or minutes for
supplied battery power is_____based on abyc correct answer -
90 minutes
What is ohm's law the measure of correct answer - resistance
Tech a says that a faulty circuit breaker could require an overhaul.
Tech b says that circuit breakers used in recreational marine
applications must be replaced if found defective. Which tech is
correct? Correct answer - tech b
The maximum allowable voltage drop permitted for panelboard dc
feeders based on abyc is: correct answer - 3%
When installing a 120 volt receptacle in a galley, the technician
should do all of the following except correct answer - install
the receptacle in the countertop
To test a 120v ac element in a water heater, the technician should
run a correct answer - continuity test
If resistance is added to a series circuit, the current flow correct
answer - decreases
When clamping a shore power cord and activating ac circuits one by
one, the technician notices that the ac leakage current measured
keeps getting higher as each appliance is turned on. This most likely
, indicates: correct answer - a neutral-to-ground link at the
boat's ac panel board
The rms multiplier you use to determine harmonic distortion in an
ac power supply is: correct answer - 414
A polarity indicator light that is glowing more dimly than normal
could be an indicator of: correct answer - an open circuit in the
neutral-to-ground link at an ac generator
To actually view harmonic distortion a technician might use a
correct answer - oscilloscope
All of the following appliances commonly used on new boats can be
affected by excessive harmonic distortion except, correct answer -
water heaters
Industry accepted standards for harmonic distortion levels are
normally ______ as a maximum correct answer - 2-3%
The tool of choice based on the study guide for checking ac wiring
on a boat is the: correct answer - sure test
Appropiate bonding conductor sizing for a system tied in to offer
lightning protection is ___________ based on abyc. Correct answer -
6 awg
The most common tool used in a corrosion survey is a(n): correct
answer - portable hull potential meter
The purpose of a neutral safety switch is to: correct answer -
not allow the engine to start in gear
Explanations
All of the following could cause a conductor to overheat except:
correct answer - insulation temperature rating too low
The minimum battery reserve capacity in hours or minutes for
supplied battery power is_____based on abyc correct answer -
90 minutes
What is ohm's law the measure of correct answer - resistance
Tech a says that a faulty circuit breaker could require an overhaul.
Tech b says that circuit breakers used in recreational marine
applications must be replaced if found defective. Which tech is
correct? Correct answer - tech b
The maximum allowable voltage drop permitted for panelboard dc
feeders based on abyc is: correct answer - 3%
When installing a 120 volt receptacle in a galley, the technician
should do all of the following except correct answer - install
the receptacle in the countertop
To test a 120v ac element in a water heater, the technician should
run a correct answer - continuity test
If resistance is added to a series circuit, the current flow correct
answer - decreases
When clamping a shore power cord and activating ac circuits one by
one, the technician notices that the ac leakage current measured
keeps getting higher as each appliance is turned on. This most likely
, indicates: correct answer - a neutral-to-ground link at the
boat's ac panel board
The rms multiplier you use to determine harmonic distortion in an
ac power supply is: correct answer - 414
A polarity indicator light that is glowing more dimly than normal
could be an indicator of: correct answer - an open circuit in the
neutral-to-ground link at an ac generator
To actually view harmonic distortion a technician might use a
correct answer - oscilloscope
All of the following appliances commonly used on new boats can be
affected by excessive harmonic distortion except, correct answer -
water heaters
Industry accepted standards for harmonic distortion levels are
normally ______ as a maximum correct answer - 2-3%
The tool of choice based on the study guide for checking ac wiring
on a boat is the: correct answer - sure test
Appropiate bonding conductor sizing for a system tied in to offer
lightning protection is ___________ based on abyc. Correct answer -
6 awg
The most common tool used in a corrosion survey is a(n): correct
answer - portable hull potential meter
The purpose of a neutral safety switch is to: correct answer -
not allow the engine to start in gear
