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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
During discharge, the active material of both the positive and negative plates is changed to

PbS02
Pb
PbS04
Pb02

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Electrolysis and Storage Batteries
In order that a hydrometer may float vertically in electrolyte its C.G. should be

lowered
undisturbed
displaced sideways
raised

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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
The e.m.f. of an Edison cell, when fully charged, is nearly

2.0 V
2.5 V
1.8 V
1.4 V

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Electrolysis and Storage Batteries
Mercury cell has which of the following characteristics?

Flat discharge current-voltage curve
Comparatively longer shelf life under adverse conditions of high temperature and humidity
All of these
High power to weight ratio

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Electrolysis and Storage Batteries
When the load resistance equals the generator resistance which of the following will be maximum ?

Efficiency of the circuit
Power in the load resistance
Current
Voltage across the load resistance

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MORE MCQ ON Electrolysis and Storage Batteries

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