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Study MCQ
Wireman
CELLS AND BATTERIES
Set 3
Set 3
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Q13620
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Which method is used to charge the battery at very low rate and long period?
A
Rectifier method
B
Trickle charging method
C
Constant current method
D
Constant potential method
Q13621
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Which instrument is used to measure electrolyte specific gravity?
A
Barometer
B
Hydrometer
C
Lactometer
D
Thermometer
Q13622
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Why the vent plugs are kept open during charging of lead acid battery?
A
Check the level of electrolyte
B
Release the gas produced
C
Enter the oxygen from atmospheric air
D
Check the condition of plates
Q13623
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Which is applied on the battery terminals to avoid corrosion?
A
Solid grease
B
Petroleum jelly
C
Lubricating oil
D
Liquid grease
Q13624
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What happens to the terminal voltage of a cell if load is increased?
A
Decreases
B
Increases
C
Remain same
D
Falls to zero
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