Exam (elaborations)
ABYC Marine Electrical Certification Day 2
- Course
- VNSG 1231 PHARM Ch 34 BSHP
- Institution
- VNSG 1231 PHARM Ch 34 BSHP
ABYC Marine Electrical Certification Day 2
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ABYC Marine Electrical Certification Day 2A _______ 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.
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