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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
Which among the following constitutes the major load for an automobile battery ?

Spark plugs
Brake light
Self starter
Parking lights

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Electrolysis and Storage Batteries
Local action in a battery is indicated by

excessive gassing under load conditions
none of the listed here
excessive drop in the specific gravity of electrolyte even when the cell is on open circuit
both of the listed here

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Electrolysis and Storage Batteries
In a battery cover is placed over the element and sealed to the top of the battery container. This is done

to reduce evaporation of water from electrolyte
None of the listed here
to exclude dirt and foreign matter from the electrolyte
Both of the listed here

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Electrolysis and Storage Batteries
It is noticed that during discharging the following does not happen

specific gravity of H2SO4 decreases
the cell absorbs energy
voltage of the cell decreases
both anode and cathode become PbS04

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Electrolysis and Storage Batteries
48 ampere-hour capacity would deliver a current of

6 amperes for 8 hours
48 amperes for 1 hour
8 amperes for 6 hours
24 amperes for 2 hours

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Electrolysis and Storage Batteries
Specific gravity of electrolyte in Edison cell is

1.1
1.21
2.0
1.5

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