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Electrolysis and Storage of Batteries - Interview Questions and Answers

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51. Over charging
A. produces excessive gassing
B. loosens the active material
C. increases the temperature resulting in buckling of plates
D. all above
Explanation:
52. Internal short circuits are caused by
A. breakdown of one or more separators
B. excess accumulation of sediment at the bottom of the cell
C. both (a) and (b)
D. none of the above
Explanation:
53. Electrolyte used in an Edison cell is
A. NaOH
B. KOH
C. HC1
D. HN03
Explanation:
54. Excessive formation of lead sulphate on the surface of the plates happens because of
A. allowing a battery to stand in discharged condition for a long time
B. topping up with electrolyte
C. persistent undercharging
D. low level of electrolyte
Explanation:
55. The lead-acid cell should never be discharged beyond
A. 1.8 V
B. 1.9 V
C. 2 V
D. 2.1 V
Explanation:
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