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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
The effect of sulphation is that the internal resistance

remains same
decreases
none of the listed here
increases

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Electrolysis and Storage Batteries
In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following

three parts H2O, one part H₂SO₄
one part H2O, three parts H₂SO₄
two parts H2O, two parts H₂SO₄
all H₂SO₄

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Electrolysis and Storage Batteries
Cell short circuit results in

abnormal high temperature
low sp. gravity electrolyte
all of the listed here
reduced gassing on charge

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Electrolysis and Storage Batteries
Following will happen if battery charging rate is too high

all of the listed here
bulging and buckling of plates will occur
excessive gassing will occur
temperature rise will occur

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Electrolysis and Storage Batteries
Self charge of a Ni-Fe cell is _____ Edison cell.

Much more than
More than
Less than
Equal to

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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.

passive
active
redundant
all

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