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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
Negative plate of an Edison cell is made of

copper
silver oxide
iron
lead

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Electrolysis and Storage Batteries
Batteries are charged by

motor generator sets
any one of the listed here
engine generator sets
rectifiers

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Electrolysis and Storage Batteries
The internal resistance of a lead-acid cell is that of Edison cell

More than
None of the listed here
Equal to
Less than

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Electrolysis and Storage Batteries
Following will occur if level of electrolyte falls below plates

capacity of the cell is reduced
life of the cell is reduced
open plates are converted to lead sulphate
all of these

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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
Remains same
Decreases
Increases

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Electrolysis and Storage Batteries
Which of the following primary cells has the lowest voltage ?

Mercury
Zinc-chloride
Carbon-zinc
Lithium

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