Related Questions

During the charging of a lead-acid cell
A Its voltage increases
B It gives out energy
C Its cathode becomes dark chocolate brown in colour
D Specific gravity of H2SO4 decreases
As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its
A compactness
B lower e.m.f.
C small quantity of electrolyte used
D higher internal resistance
In constant voltage charging method, the charging current from discharged to fully charged condition
A decreases
B increases
C remains constant
D none of the above
Under normal charging rate, the charging current should be
A 10% of capacity
B 20% of capacity
C 30% of capacity
D 40% of capacity
During charging the specific gravity of the electrolyte of a lead-acid battery
A increases
B decreases
C remains the same
D becomes zero
In a lead-acid cell, lead is called as
A positive active material
B negative active material
C passive material
D none of the above
In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following
A One part H2O, three parts H2SO4
B Two parts H2O, two parts H2SO4
C Three parts H2O, one part H2SO4
D All H2SO4
The internal resistance of a lead-acid cell is that of Edison cell
A Less than
B More than
C Equal to
D None of the above
The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.
A two
B three
C four
D five
Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower
A Price
B Corrosion resistance
C Thermal conductivity
D Abundant availability

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