ELECTROLYSIS AND STORAGE BATTERIES QUIZ

The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is

none of the listed here

always greater than one

just one

always less than one

TRUE ANSWER : ?
YOUR ANSWER : ?

Cells are connected in series in order to

increase the voltage rating

increase the current rating

increase the life of the cells

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

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

PbS04

Pb02

PbS02

Pb

TRUE ANSWER : ?
YOUR ANSWER : ?

The lead-acid cell should never be discharged beyond

2.1 V

1.8 V

2 V

1.9 V

TRUE ANSWER : ?
YOUR ANSWER : ?

The internal resistance of a lead-acid cell is that of Edison cell

Equal to

More than

None of the listed here

Less than

TRUE ANSWER : ?
YOUR ANSWER : ?

Specific gravity of electrolyte in Edison cell is

1.5

1.21

1.1

2.0

TRUE ANSWER : ?
YOUR ANSWER : ?

During charging the specific gravity of the electrolyte of a lead-acid battery

remains the same

decreases

increases

none of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The capacity of a lead-acid cell does not depend on its

rate of discharge

rate of charge

temperature

quantity of active material

TRUE ANSWER : ?
YOUR ANSWER : ?

Satellite power requirement is provided through

solar cells

dry cells

lead-acid batteries

nickel-cadmium cells

TRUE ANSWER : ?
YOUR ANSWER : ?

Internal resistance of a cell is due to

all of the listed here

electrode resistance

resistance of electrolyte

surface contact resistance between electrode and electrolyte

TRUE ANSWER : ?
YOUR ANSWER : ?

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