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.Management Sciences
Category: Electrolysis and Storage of Batteries
In a lead-acid battery the energy is stored in the form of___________?
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A. charged ions
B. chemical energy
C. electrostatic energy
D. electromagnetic energy
All the electrical connections between the battery and vehicle should be by____________?
A. thin aluminium wires
B. thin copper wires
C. rigid cables
D. flexible cables
The internal resistance of an alkali cell is nearly _________ times that of the lead-acid cell
A. two
B. three
C. four
D. five
The effect of sulphation is that the internal resistance__________?
A. increases
B. decreases
C. remains same
D. none of the above
The capacity of a lead-acid cell depends on
A. rate of discharge
B. temperature
C. density of electrolyte
D. quantity of active materials
E. all above
When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in___________?
A. charged state
B. discharged state
C. both (A) and (B)
D. active state
As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of___________?
A. reducing time of charging
B. increasing cell capacity
C. both (A) and (B)
D. avoiding excessive gassing
During discharge, the active material of both the positive and negative plates is changed to___________?
A. Pb
B. Pb02
C. PbO
D. PbS04
Satellite power requirement is provided through________?
A. solar cells
B. dry cells
C. nickel-cadmium cells
D. lead-acid batteries
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