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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
The ampere-hour efficiency of a leadacid cell is normally between

70 to 75%
80 to 85%
20 to 35%
90 to 95%

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Electrolysis and Storage Batteries
In constant voltage charging method, the charging current from discharged to fully charged condition

None of the listed here
Decreases
Increases
Remains same

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Electrolysis and Storage Batteries
Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as______materials.

all
active
redundant
passive

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Electrolysis and Storage Batteries
Each cell has a vent cap

to add water to the cell if needed
to check the level of electrolyte
all of the listed here
to allow gases out when the cell is on charge

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Electrolysis and Storage Batteries
The open circuit voltage of any storage cell depends wholly upon

on the strength of its electrolyte
all of the listed here
its temperature
its chemical constituents

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Electrolysis and Storage Batteries
The active materials on the positive and negative plates of a fully charged lead-acid battery are

lead sulphate and lead
lead and lead peroxide
lead peroxide and lead
None of these

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