ABYC Marine Electrical - Set Three questions with
verified answers
___ circuits function by turning a solenoid (which operates at a relatively low
amperage draw, but allows high-amperage current delivery to the load in
question) on and off.
A. AC
B. Open
C. Dual-current
D. Short Ans✓✓✓-C. Dual-current
___ lighting transformer units are only useful for relatively small installs, with
around a 60-watt maximum load.
A. High-frequency electronic
B. Low-frequency electronic
C. Magnetic
D. LED Ans✓✓✓-A. High-frequency electronic
___ procedures are important so that another worker or the boat owner does not
mistakenly activate a partially disassembled device or circuit.
A. Isolation
B. Grounding
C. Lockout/tagout
D. Start-up Ans✓✓✓-C. Lockout/tagout
___ protection shall be installed to prevent starting an engine while in gear.
, A. Ignition
B. Start-in-gear
C. Overcurrent
D. Chafe Ans✓✓✓-B. Start-in-gear
A ___ detection system shall be installed on all boats with an enclosed
accommodation compartment(s) and, a gasoline generator set, or an inboard
gasoline propulsion engine.
A. carbon monoxide
B. fire/smoke
C. harmonic distortion
D. lightning Ans✓✓✓-A. carbon monoxide
A lightning protection system offers no protection when the boat is ___.
A. not secured to a dock
B. anchored in the water
C. idled in the water
D. out of water Ans✓✓✓-D. out of water
A polarity indicator light that is glowing more dimly than normal could be an
indicator of:
A. An open circuit in the neutral to ground link at an AC generator
B. An open circuit in the hot wire connection
C. A ground connection with very low impedance
D. Excessive AC frequency Ans✓✓✓-A. An open circuit in the neutral to ground
link at an AC generator
verified answers
___ circuits function by turning a solenoid (which operates at a relatively low
amperage draw, but allows high-amperage current delivery to the load in
question) on and off.
A. AC
B. Open
C. Dual-current
D. Short Ans✓✓✓-C. Dual-current
___ lighting transformer units are only useful for relatively small installs, with
around a 60-watt maximum load.
A. High-frequency electronic
B. Low-frequency electronic
C. Magnetic
D. LED Ans✓✓✓-A. High-frequency electronic
___ procedures are important so that another worker or the boat owner does not
mistakenly activate a partially disassembled device or circuit.
A. Isolation
B. Grounding
C. Lockout/tagout
D. Start-up Ans✓✓✓-C. Lockout/tagout
___ protection shall be installed to prevent starting an engine while in gear.
, A. Ignition
B. Start-in-gear
C. Overcurrent
D. Chafe Ans✓✓✓-B. Start-in-gear
A ___ detection system shall be installed on all boats with an enclosed
accommodation compartment(s) and, a gasoline generator set, or an inboard
gasoline propulsion engine.
A. carbon monoxide
B. fire/smoke
C. harmonic distortion
D. lightning Ans✓✓✓-A. carbon monoxide
A lightning protection system offers no protection when the boat is ___.
A. not secured to a dock
B. anchored in the water
C. idled in the water
D. out of water Ans✓✓✓-D. out of water
A polarity indicator light that is glowing more dimly than normal could be an
indicator of:
A. An open circuit in the neutral to ground link at an AC generator
B. An open circuit in the hot wire connection
C. A ground connection with very low impedance
D. Excessive AC frequency Ans✓✓✓-A. An open circuit in the neutral to ground
link at an AC generator
