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Electrolysis and Storage of Batteries - Interview Questions and Answers

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31. On overcharging a battery
A. it will bring about chemical change in active materials
B. it will increase the capacity of the battery
C. it will raise the specific gravity of the electrolyte
D. none of the above will occur
Explanation:
32. Electrolyte used in a lead-acid cell is
A. NaOH
B. onlyH2S04
C. only water
D. dilute H2SO4
Explanation:
33. In ______ system the charging current is intermittently controlled at either a maximum or minimum value
A. two rate charge control
B. trickle charge
C. floating charge
D. an equalizing charge
Explanation:
34. The active material of the positive plates of silver-zinc batteries is
A. silver oxide
B. lead oxide
C. lead
D. zinc powder
Explanation:
35. Cells are connected in series in order to
A. increase the voltage rating
B. increase the current rating
C. increase the life of the cells
D. none of the above
Explanation:
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