129) What is the purpose of separators in a lead-acid battery ?

To reduce the buckling

To reduce internal resistance

To avoid internal short circuit

To reduce the sulphation

Answer is:

To avoid internal short circuit

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130) What defect will occur in the lead-acid battery of over charged or over discharged ?

Sulphation

Buckling

Local action

Partial short

Answer is:

Buckling

131) Which factor is NOT depending on the capacity of the cell ?

Size of the plates

Number of plates

Terminal voltage

Strength of the electrolyte

Answer is:

Terminal voltage

132) When the battery is charged at a very low rate 2 to 3% of the normal rate for a long period, it is said to be :

constant current charge

trickle charge

constant voltage charge

rectifier charge

Answer is:

trickle charge

133) The capacity of a battery is expressed in :

watt-hour

ampere/sec

Ampere hour

kilo watt

Answer is:

Ampere hour

Explanation:

Battery capacity (AH) is defined as a product of the current that is drawn from the battery while the battery is able to supply the load until its voltage is dropped to lower than a certain value for each cell. Capacity of batteries usually expressed in Ampere Hour (AH).

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