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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
When a lead-acid battery is in fully charged condition, the color of its positive plate is

dark grey
none of the listed here
brown
dark brown

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Electrolysis and Storage Batteries
48 ampere-hour capacity would deliver a current of

48 amperes for 1 hour
6 amperes for 8 hours
8 amperes for 6 hours
24 amperes for 2 hours

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Electrolysis and Storage Batteries
Following will happen if battery charging rate is too high

all of the listed here
bulging and buckling of plates will occur
temperature rise will occur
excessive gassing will occur

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Electrolysis and Storage Batteries
If a lead-acid cell is discharged below 1.8 V the following will happen.

Capacity of cell will reduce
All of the listed here
Internal resistance will increase
Sulphation of plates will occur

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

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

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Electrolysis and Storage Batteries
Electrolyte used in a lead-acid cell is

only H₂SO₄
NaOH
dilute H₂SO₄
only water

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MORE MCQ ON Electrolysis and Storage Batteries

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