Electrolysis and Storage of Batteries - Interview Questions | Exam2Win

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71. 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

Explanation:

72. Capacity of dry cells is

A. more when it is supplying current for intermittent periods

B. more when it is supplying current for continuous periods

C. unaffected by the type of discharge

D. none of the above

Explanation:

73. Cell short circuit results in

A. low sp. gravity electrolyte

B. abnormal high temperature

C. reduced gassing on charge

D. all above

Explanation:

74. Shelf life of a small dry cell is

A. equal to that of large dry cell

B. less than that of large dry cell

C. more than that of large dry cell

D. none of the above

Explanation:

75. If a lead-acid cell is discharged below 1.8 V the following will happen.

A. Capacity of cell will reduce

B. Sulphation of plates will occur

C. Internal resistance will increase

D. All above will occur

Explanation: