ELECTROLYSIS AND STORAGE BATTERIES QUIZ

In constant-current charging method, the supply voltage from discharged to fully charged condition

none of the listed here

remains constant

decreases

increases

TRUE ANSWER : ?
YOUR ANSWER : ?

For a cell to work, which of the following condition(s) become necessary ?

Electrolyte liquid or paste should be conducting

All of the listed here

Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other

Electrolyte must chemically react with one of the electrodes

TRUE ANSWER : ?
YOUR ANSWER : ?

Cells are connected in series in order to

increase the voltage rating

None of the listed here

increase the life of the cells

increase the current rating

TRUE ANSWER : ?
YOUR ANSWER : ?

Batteries are charged by

engine generator sets

any one of the listed here

motor generator sets

rectifiers

TRUE ANSWER : ?
YOUR ANSWER : ?

It is noticed that during discharging the following does not happen

voltage of the cell decreases

both anode and cathode become PbS04

specific gravity of H2SO4 decreases

the cell absorbs energy

TRUE ANSWER : ?
YOUR ANSWER : ?

In a lead-acid battery the energy is stored in the form of

electromagnetic energy

electrostatic energy

chemical energy

charged ions

TRUE ANSWER : ?
YOUR ANSWER : ?

In alkaline cell the electrolyte is

dilute sulphuric acid

kOH

concentrated sulphuric acid

NaOH

TRUE ANSWER : ?
YOUR ANSWER : ?

During the charging and discharging of a nickel-iron cell

corrosive fumes are produced

water is neither formed nor absorbed

its e.m.f. remains constant

nickel hydroxide remains unsplit

TRUE ANSWER : ?
YOUR ANSWER : ?

While preparing electrolyte for a lead-acid battery

acid is poured into water

none of the listed here

water is poured into acid

anyone of the two can be added to other chemical

TRUE ANSWER : ?
YOUR ANSWER : ?

A battery of 6 cells will show a drop of _____ volts from fully charged state to fully discharged state.

2.8

2.5

2.4

2.0

TRUE ANSWER : ?
YOUR ANSWER : ?

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