current rating
voltage rating
ampere-hour rating
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe capacity of a battery is expressed in terms of
Electrolysis and storage of batteries
42. Which of the following has lower specific gravity
Dilute H2SO4
Concentrated H2SO4
Water
Any of the above
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!
45. All the electrical connections between the battery and vehicle should be by
thin aluminium wires
thin copper wires
rigid cables
flexible cables
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!
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
Answer is Right!
Answer is Wrong!