Q.1
Capacity of dry cells is
Q.2
As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its
Q.3
Dry cell is modification of
Q.4
Five 2 V cells are connected in parallel. The output voltage is
Q.5
Charging a sulphated battery at high rate results in
Q.6
During the idle period of the battery, strong electrolyte tends to change the active material of the cell into
Q.7
In order that a hydrometer may float vertically in electrolyte its C.G. should be
Q.8
Which of the following factors adversely affects the capacity of the leadacid battery ?
Q.9
During the charging and discharging of a nickel-iron cell
Q.10
Excessive charging a battery tends to
Q.11
_______ of electrolyte indicates the state of charge of the battery
Q.12
On overcharging a battery
Q.13
Batteries are charged by
Q.14
The active material of the positive plates of silver-zinc batteries is
Q.15
Persons preparing electrolyte should wear
Q.16
48 ampere-hour capacity would deliver a current of
Q.17
Electrolyte used in an Edison cell is
Q.18
Life of the batteries is in the following ascending order.
Q.19
In alkaline cell the electrolyte is
Q.20
The current flow through electrolyte is due to the movement of
Q.21
The active materials on the positive and negative plates of a fully charged lead-acid battery are
Q.22
As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of
Q.23
Mercury cell has which of the following characteristics?
Q.24
Following will happen if battery charging rate is too high
Q.25
Extent of corrosion in the underground metal work depends upon
Q.26
The average charging voltage for alkali cell is about
Q.27
For a cell to work, which of the following condition(s) become necessary ?
Q.28
It is noticed that durum charging
Q.29
The internal resistance of a lead-acid cell is that of Edison cell
Q.30
Satellite power requirement is provided through
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