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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
In order that a hydrometer may float vertically in electrolyte its C.G. should be

raised
undisturbed
lowered
displaced sideways

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Electrolysis and Storage Batteries
The specific gravity of electrolyte is measured by

a mechanical gauge
manometer
psychrometer
hydrometer

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Electrolysis and Storage Batteries
On the average the ampere-hour efficiency of an Edison cell is about

0.6
0.7
0.4
0.8

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Electrolysis and Storage Batteries
Internal resistance of a cell is due to

all of the listed here
surface contact resistance between electrode and electrolyte
electrode resistance
resistance of electrolyte

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Electrolysis and Storage Batteries
While preparing electrolyte for a lead-acid battery

none of the listed here
anyone of the two can be added to other chemical
water is poured into acid
acid is poured into water

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

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

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