During the idle period of the battery, strong electrolyte tends to change the active material of the cell into

During charging the specific gravity of the electrolyte of a lead-acid battery

A

increases

B

decreases

C

remains the same

D

becomes zero

While preparing electrolyte for a lead-acid battery

A

water is poured into acid

B

acid is poured into water

C

anyone of the two can be added to other chemical

D

none of the above

The composition of the electrolyte in a fully charged battery is that

A

The electrolyte is pure distilled water

B

The electrolyte is pure sulphuric acid

C

The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight

D

The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight

_______ of electrolyte indicates the state of charge of the battery

A

colour

B

mass

C

viscosity

D

specific gravity

The common impurity in the electrolyte of lead-acid battery is

A

chlorine

B

dust particles

C

lead crystals

D

iron

Which of the following acids serves as an electrolyte in a lead storage battery?

A

Sulphuric acid

B

Lactic acid

C

Hydrochloric acid

D

Nitric acid

With the increase of battery temperature, the specific gravity of electrolyte

A

Increases

B

Decreases

C

Remains the same

D

None of these

Excessive charging a battery tends to

A

produce gassing

B

increase the internal resistance of the battery

C

to corrode the positive plates into lead peroxide thereby weakening them physically

D

bring about all above changes

When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the

A

Le-Chatelier principle

B

Kopp's rule

C

Law of corresponding state

D

Arrehenius hypothesis

In a battery cover is placed over the element and sealed to the top of the battery container. This is done

A

to reduce evaporation of water from electrolyte

B

to exclude dirt and foreign matter from the electrolyte

C

to discharge both of the above functions

D

to discharge none of the above functions

During the idle period of the battery, strong electrolyte tends to change the active material of the cell into

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