Electrolysis and storage of batteries

5. Internal resistance of a cell is reduced by

using vent plug to permit gas formed during discharge
increasing the plate area
putting plates very close together
all above methods

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class="read-more button" href="https://exam.pscnotes.com/mcq/internal-resistance-of-a-cell-is-reduced-by/#more-59350">Detailed SolutionInternal resistance of a cell is reduced by

6. The following indicate that battery on charge has attained full charge

colour of electrode
gassing
specific gravity
all above

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47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
class="read-more button" href="https://exam.pscnotes.com/mcq/the-following-indicate-that-battery-on-charge-has-attained-full-charge/#more-59152">Detailed SolutionThe following indicate that battery on charge has attained full charge

7. During discharge, the active material of both the positive and negative plates is changed to

Pb
PbO2
PbO
PbSO4

Detailed SolutionDuring

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288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
discharge, the active material of both the positive and negative plates is changed to

8. In ______ system the charging current is intermittently controlled at either a maximum or minimum value

two rate charge control
trickle charge
floating charge
an equalizing charge

Detailed SolutionIn

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______ system the charging current is intermittently controlled at either a maximum or minimum value

9. The effect of sulphation is that the internal resistance

increases
decreases
remains same
none of the above

Detailed

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SolutionThe effect of sulphation is that the internal resistance

10. In constant voltage charging method, the charging current from discharged to fully charged condition

decreases
increases
remains constant
none of the above

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condition" class="read-more button" href="https://exam.pscnotes.com/mcq/in-constant-voltage-charging-method-the-charging-current-from-discharged-to-fully-charged-condition/#more-58569">Detailed SolutionIn constant voltage charging method, the charging current from discharged to fully charged condition

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