Electrolysis and storage of batteries Archives - Page 5 of 10 - MCQ and Quiz for Exams

41. The capacity of a battery is expressed in terms of

current rating

voltage rating

ampere-hour rating

none of the above

Detailed SolutionThe capacity of a battery is expressed in terms of

42. Which of the following has lower specific gravity

Dilute H2SO4

Concentrated H2SO4

Water

Any of the above

Detailed SolutionWhich of the following has lower specific gravity

43. 48 ampere-hour capacity would deliver a current of

48 amperes for 1 hour

24 amperes for 2 hours

8 amperes for 6 hours

6 amperes for 8 hours

Detailed Solution48 ampere-hour capacity would deliver a current of

44. In a lead-acid cell, lead is called as

positive active material

negative active material

passive material

none of the above

Detailed SolutionIn a lead-acid cell, lead is called as

45. All the electrical connections between the battery and vehicle should be by

thin aluminium wires

thin copper wires

rigid cables

flexible cables

Detailed SolutionAll the electrical connections between the battery and vehicle should be by

46. Which among the following constitutes the major load for an automobile battery ?

Brake light

Self starter

Parking lights

Spark plugs

Detailed SolutionWhich among the following constitutes the major load for an automobile battery ?

47. Extent of corrosion in the underground metal work depends upon

amount of moisture

type of metals

type of soil chemicals

all above factors

Detailed SolutionExtent of corrosion in the underground metal work depends upon

48. The active material of the positive plates of silver-zinc batteries is

silver oxide

lead oxide

lead

zinc powder

Detailed SolutionThe active material of the positive plates of silver-zinc batteries is

49. The average charging voltage for alkali cell is about

1 V

1.2 V

1.7 V

2.1 V

Detailed SolutionThe average charging voltage for alkali cell is about

50. Cells are connected in parallel to

Increase the efficiency

Increase the current capacity

Increase the voltage output

Increase the internal resistance

Detailed SolutionCells are connected in parallel to

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