ABYC Marine Electrical Certification Day 2 Exam Questions and Answers(GRADED A+)
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Course
ABYC Marine Electrical Certification Day 2
Institution
ABYC Marine Electrical Certification Day 2
Range of specific gravity in fully charged 12v battery? - ANSWER -1.260 to 1.285
Fully Charged battery is _____ volts. - ANSWER -12.6
Batteries create ______ gas. - ANSWER -Hydrogen
Two twelve volt batteries in parallel will create ________ volts - ANSWER -12.6 (amperage doubles)
Two 12...
ABYC Marine Electrical Certification Day
2 Exam Questions and Answers(GRADED A+)
What is the max voltage to charge most gell cell batteries? - ANSWER -14.1 volts
Range of specific gravity in fully charged 12v battery? - ANSWER -1.260 to 1.285
Fully Charged battery is _____ volts. - ANSWER -12.6
Batteries create ______ gas. - ANSWER -Hydrogen
Two twelve volt batteries in parallel will create ________ volts - ANSWER -12.6 (amperage doubles)
Two 12V batteries in series creates _______ volts, but amperage remains the same - ANSWER -24V
This type of battery is characterized by thicker plates and is meant for moderate loads for long periods. - ANSWER -Deep Cycle
This appliance is used to derive 12v from 24v system (or visa versa) and equalize batteries charge and discharge rates. - ANSWER -Battery Equalizer
Battery boxes must be _______________ due to release of gasses. - ANSWER -vented
overboard
Over time switching solenoids tend to wear out creating an open circuit and .... - 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. - ANSWER -0.50
Battery charger selection should be based on __________ type. - ANSWER -Battery
Bulging battery sides and a rotten egg smell are signs of what? - ANSWER -Over charging
Best practice to prevent corrosion on battery terminals is what? - ANSWER -Spray a dry
film corrosion inhibitor. Wing nuts are allowed on battery terminals for wires ______ AWG and smaller. - ANSWER -8
The battery switch rating shall equal the amps of the connected overcurrent protection or the ________ whichever is less. - ANSWER -Feeder Cable
In a flooded cell battery, fluid should be checked. - ANSWER -Frequently
Batteries in a state of ______ can freeze and become a potential hazard [go boom]. - ANSWER -Discharge
Circuit Breakers should be of the _______ variety. - ANSWER -trip free
When can connections to batteries can be made with spring loaded (alligator) fasteners? - ANSWER -Never
Batteries must be securely installed and allow no more than ______ (inches)of movement in any direction - ANSWER -1"
True or False? Batteries may be installed directly above fuel tanks. - ANSWER -False
The baseline for specific gravity in Flooded batteries is what? - ANSWER -1.0
Each metal fuel line and fuel line component within ______ inches of batteries should be shielded to protect against short circuiting. - ANSWER -12
Battery boxes should vent at the __________ portion of the cover - ANSWER -
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. - ANSWER -1.5
On a battery post with multiple terminals of different sizes, the ______ terminal should be closest to the battery. - ANSWER -Largest
Battery switches shall be installed for battery banks over ______ CCA - ANSWER -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. - ANSWER -2200, 500
Overcurrent protection should be located as close as practical to power source. The basic rule is within _____ inches. - ANSWER -7
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