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Electrolysis and Storage Batteries

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

2.4
2.8
2.5
2.0

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Electrolysis and Storage Batteries
The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.

5
2
4
3

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Electrolysis and Storage Batteries
Over charging

all of the listed here
loosens the active material
increases the temperature resulting in buckling of plates
produces excessive gassing

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Electrolysis and Storage Batteries
_______ of electrolyte indicates the state of charge of the battery

colour
mass
viscosity
specific gravity

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Electrolysis and Storage Batteries
Which of the following is incorrect?

A lead-acid cell can be recharged
A carbon-zinc cell has unlimited shelf life
A primary cell has an irreversible chemical reaction
A storage cell has a reversible chemical reaction

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Electrolysis and Storage Batteries
A constant-voltage generator has

minimum current capacity
low internal resistance
high internal resistance
minimum efficiency

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