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ABYC Marine Electrical Certification Day 2 Exam Questions and Answers
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ABYC Marine Electrical Certification Day 2 Exam Questions and Answers
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ABYC Marine Electrical Certification Day2 Exam Questions and Answers
What is the max voltage to charge most gell cell batteries? - Answers -14.1 volts
Range of specific gravity in fully charged 12v battery? - Answers -1.260 to 1.285
Fully Charged battery is _____ volts. - Answers -12.6
Batteries create ______ gas. - Answers -Hydrogen
Two twelve volt batteries in parallel will create ________ volts - Answers -12.6
(amperage doubles)
Two 12V batteries in series creates _______ volts, but amperage remains the same -
Answers -24V
This type of battery is characterized by thicker plates and is meant for moderate loads
for long periods. - Answers -Deep Cycle
This appliance is used to derive 12v from 24v system (or visa versa) and equalize
batteries charge and discharge rates. - Answers -Battery Equalizer
Battery boxes must be _______________ due to release of gasses. - Answers -vented
overboard
Over time switching solenoids tend to wear out creating an open circuit and .... -
Answers -One of the batteries does not charge and goes dead.
A drop in specific gravity of _____ (from the other cells) on a battery test is indicative of
a bad cell. - Answers -0.50
Battery charger selection should be based on __________ type. - Answers -Battery
Bulging battery sides and a rotten egg smell are signs of what? - Answers -Over
charging
Best practice to prevent corrosion on battery terminals is what? - Answers -Spray a dry
film corrosion inhibitor.
, Wing nuts are allowed on battery terminals for wires ______ AWG and smaller. -
Answers -8
The battery switch rating shall equal the amps of the connected overcurrent protection
or the ________ whichever is less. - Answers -Feeder Cable
In a flooded cell battery, fluid should be checked. - Answers -Frequently
Batteries in a state of ______ can freeze and become a potential hazard [go boom]. -
Answers -Discharge
Circuit Breakers should be of the _______ variety. - Answers -trip free
When can connections to batteries can be made with spring loaded (alligator)
fasteners? - Answers -Never
Batteries must be securely installed and allow no more than ______ (inches)of
movement in any direction - Answers -1"
True or False? Batteries may be installed directly above fuel tanks. - Answers -False
The baseline for specific gravity in Flooded batteries is what? - Answers -1.0
Each metal fuel line and fuel line component within ______ inches of batteries should
be shielded to protect against short circuiting. - Answers -12
Battery boxes should vent at the __________ portion of the cover - Answers -
uppermost
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. -
Answers -1.5
On a battery post with multiple terminals of different sizes, the ______ terminal should
be closest to the battery. - Answers -Largest
Battery switches shall be installed for battery banks over ______ CCA - Answers -801
(or 100 amp hours if CCA is unavailable)
The abyc provides a chart for determining the AIC for overcurrent protection on battery
banks less than ______ CCA or _______Ah. - Answers -2200, 500
Overcurrent protection should be located as close as practical to power source. The
basic rule is within _____ inches. - Answers -7
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