ABYC Marine Electrical Certification Day 2 questions
with verified answers
A _______ is what changes the AC power from the alternator to usable DC power.
Ans✓✓✓-rectifier (bridge rectifier)
A ________ tester is often required by manufacturers to determine battery
replacement Ans✓✓✓-Conductance
A drop in specific gravity of _____ (from the other cells) on a battery test is
indicative of a bad cell. Ans✓✓✓-0.50
A soldered connection that joins a battery terminal connector to a conductor
should be at least _______ times the diameter of the stranded portion of the
battery conductor. Ans✓✓✓-1.5
A traditional load test requires placing a load equal to ____% of the batteries CCA
for ______ seconds. Ans✓✓✓-50%, 15 seconds
An AC leakage of up to _______ past the diodes of an alternators rectifier is
considered normal. Ans✓✓✓-0.4 V
Appropriate GFCI for inverters is determined by what? Ans✓✓✓-The
manufacturer
Appropriate resistance between grounded and grounding conductors is ________
or higher Ans✓✓✓-25k ohms
, Batteries create ______ gas. Ans✓✓✓-Hydrogen
Batteries in a state of ______ can freeze and become a potential hazard [go
boom]. Ans✓✓✓-Discharge
Batteries must be securely installed and allow no more than ______ (inches)of
movement in any direction Ans✓✓✓-1"
Battery banks should be discharged at no more than ____% Ans✓✓✓-50%
Battery boxes must be _______________ due to release of gasses. Ans✓✓✓-
vented overboard
Battery boxes should vent at the __________ portion of the cover Ans✓✓✓-
uppermost
Battery charger selection should be based on __________ type. Ans✓✓✓-Battery
Battery charging systems should sense __________. Ans✓✓✓-at battery.
Battery switches shall be installed for battery banks over ______ CCA Ans✓✓✓-
801 (or 100 amp hours if CCA is unavailable)
Best practice to prevent corrosion on battery terminals is what? Ans✓✓✓-Spray
a dry film corrosion inhibitor.
with verified answers
A _______ is what changes the AC power from the alternator to usable DC power.
Ans✓✓✓-rectifier (bridge rectifier)
A ________ tester is often required by manufacturers to determine battery
replacement Ans✓✓✓-Conductance
A drop in specific gravity of _____ (from the other cells) on a battery test is
indicative of a bad cell. Ans✓✓✓-0.50
A soldered connection that joins a battery terminal connector to a conductor
should be at least _______ times the diameter of the stranded portion of the
battery conductor. Ans✓✓✓-1.5
A traditional load test requires placing a load equal to ____% of the batteries CCA
for ______ seconds. Ans✓✓✓-50%, 15 seconds
An AC leakage of up to _______ past the diodes of an alternators rectifier is
considered normal. Ans✓✓✓-0.4 V
Appropriate GFCI for inverters is determined by what? Ans✓✓✓-The
manufacturer
Appropriate resistance between grounded and grounding conductors is ________
or higher Ans✓✓✓-25k ohms
, Batteries create ______ gas. Ans✓✓✓-Hydrogen
Batteries in a state of ______ can freeze and become a potential hazard [go
boom]. Ans✓✓✓-Discharge
Batteries must be securely installed and allow no more than ______ (inches)of
movement in any direction Ans✓✓✓-1"
Battery banks should be discharged at no more than ____% Ans✓✓✓-50%
Battery boxes must be _______________ due to release of gasses. Ans✓✓✓-
vented overboard
Battery boxes should vent at the __________ portion of the cover Ans✓✓✓-
uppermost
Battery charger selection should be based on __________ type. Ans✓✓✓-Battery
Battery charging systems should sense __________. Ans✓✓✓-at battery.
Battery switches shall be installed for battery banks over ______ CCA Ans✓✓✓-
801 (or 100 amp hours if CCA is unavailable)
Best practice to prevent corrosion on battery terminals is what? Ans✓✓✓-Spray
a dry film corrosion inhibitor.
