Exam (elaborations)
ABYC Marine Electrical Certification Day 2
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ABYC Marine Electrical Certification Day 2
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ABYC Marine Electrical Certification Day2
What is the max voltage to charge most gell cell batteries? - correct answer-14.1 volts
Range of specific gravity in fully charged 12v battery? - correct answer-1.260 to 1.285
Fully Charged battery is _____ volts. - correct answer-12.6
Batteries create ______ gas. - correct answer-Hydrogen
Two twelve volt batteries in parallel will create ________ volts - correct answer-12.6
(amperage doubles)
Two 12V batteries in series creates _______ volts, but amperage remains the same - correct
answer-24V
This type of battery is characterized by thicker plates and is meant for moderate loads for
long periods. - correct answer-Deep Cycle
This appliance is used to derive 12v from 24v system (or visa versa) and equalize batteries
charge and discharge rates. - correct answer-Battery Equalizer
Battery boxes must be _______________ due to release of gasses. - correct answer-vented
overboard
Over time switching solenoids tend to wear out creating an open circuit and .... - correct
answer-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. - correct answer-0.50
Battery charger selection should be based on __________ type. - correct answer-Battery
Bulging battery sides and a rotten egg smell are signs of what? - correct answer-Over
charging
Best practice to prevent corrosion on battery terminals is what? - correct answer-Spray a dry
film corrosion inhibitor.
Wing nuts are allowed on battery terminals for wires ______ AWG and smaller. - correct
answer-8
The battery switch rating shall equal the amps of the connected overcurrent protection or the
________ whichever is less. - correct answer-Feeder Cable
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