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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
Which of the following battery is used for aircraft ?

Silver oxide battery
Lead-acid battery
Dry cell battery
Nickel-iron battery

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Electrolysis and Storage Batteries
A battery of 6 cells will show a drop of _____ volts from fully charged state to fully discharged state.

2.0
2.4
2.8
2.5

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Electrolysis and Storage Batteries
During discharge, the active material of both the positive and negative plates is changed to

Pb
PbS02
Pb02
PbS04

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Electrolysis and Storage Batteries
Following will occur if level of electrolyte falls below plates

open plates are converted to lead sulphate
capacity of the cell is reduced
life of the cell is reduced
all of these

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Electrolysis and Storage Batteries
Capacity of dry cells is

None of these
unaffected by the type of discharge
more when it is supplying current for intermittent periods
more when it is supplying current for continuous periods

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Electrolysis and Storage Batteries
Mercury cell has which of the following characteristics?

High power to weight ratio
Flat discharge current-voltage curve
All of these
Comparatively longer shelf life under adverse conditions of high temperature and humidity

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