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Electrolysis and Storage of Batteries - Interview Questions and Answers

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76. Persons preparing electrolyte should wear
A. goggles or other face shield
B. rubber
C. rubber boots and gloves
D. all above safety devices
Explanation:
77. During discharge, the active material of both the positive and negative plates is changed to
A. Pb
B. Pb02
C. PbO
D. PbS04
Explanation:
78. Internal resistance of a cell is reduced by
A. using vent plug to permit gas formed during discharge
B. increasing the plate area
C. putting plates very close together
D. all above methods
Explanation:
79. The ampere-hour efficiency of a leadacid cell is normally between
A. 20 to 30%
B. 40 to 50%
C. 60 to 70%
D. 90 to 95%
Explanation:
80. In constant voltage charging method, the charging current from discharged to fully charged condition
A. decreases
B. increases
C. remains constant
D. none of the above
Explanation:
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