[amp_mcq option1=”current rating” option2=”voltage rating” option3=”ampere-hour rating” option4=”none of the above” correct=”option3″]
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
[amp_mcq option1=”Dilute H2SO4″ option2=”Concentrated H2SO4″ option3=”Water” option4=”Any of the above” correct=”option1″]
Detailed SolutionWhich of the following has lower specific gravity
43. 48 ampere-hour capacity would deliver a current of
[amp_mcq option1=”48 amperes for 1 hour” option2=”24 amperes for 2 hours” option3=”8 amperes for 6 hours” option4=”6 amperes for 8 hours” correct=”option1″]
Detailed Solution48 ampere-hour capacity would deliver a current of
44. In a lead-acid cell, lead is called as
[amp_mcq option1=”positive active material” option2=”negative active material” option3=”passive material” option4=”none of the above” correct=”option2″]
45. All the electrical connections between the battery and vehicle should be by
[amp_mcq option1=”thin aluminium wires” option2=”thin copper wires” option3=”rigid cables” option4=”flexible cables” correct=”option4″]
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 ?
[amp_mcq option1=”Brake light” option2=”Self starter” option3=”Parking lights” option4=”Spark plugs” correct=”option2″]
Detailed SolutionWhich among the following constitutes the major load for an automobile battery ?
47. Extent of corrosion in the underground metal work depends upon
[amp_mcq option1=”amount of moisture” option2=”type of metals” option3=”type of soil chemicals” option4=”all above factors” correct=”option4″]
Detailed SolutionExtent of corrosion in the underground metal work depends upon
48. The active material of the positive plates of silver-zinc batteries is
[amp_mcq option1=”silver oxide” option2=”lead oxide” option3=”lead” option4=”zinc powder” correct=”option1″]
Detailed SolutionThe active material of the positive plates of silver-zinc batteries is
49. The average charging voltage for alkali cell is about
[amp_mcq option1=”1 V” option2=”1.2 V” option3=”1.7 V” option4=”2.1 V” correct=”option2″]
Detailed SolutionThe average charging voltage for alkali cell is about
50. Cells are connected in parallel to
[amp_mcq option1=”Increase the efficiency” option2=”Increase the current capacity” option3=”Increase the voltage output” option4=”Increase the internal resistance” correct=”option4″]