ELECTROLYSIS AND STORAGE BATTERIES QUIZ

In constant-current charging method, the supply voltage from discharged to fully charged condition

remains constant

decreases

increases

none of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Following will occur if level of electrolyte falls below plates

open plates are converted to lead sulphate

capacity of the cell is reduced

all of these

life of the cell is reduced

TRUE ANSWER : ?
YOUR ANSWER : ?

Excessive charging a battery tends to

bring about all above changes

produce gassing

increase the internal resistance of the battery

to corrode the positive plates into lead peroxide thereby weakening them physically

TRUE ANSWER : ?
YOUR ANSWER : ?

Persons preparing electrolyte should wear

goggles or other face shield

all of these

rubber boots and gloves

rubber

TRUE ANSWER : ?
YOUR ANSWER : ?

Cells are connected in parallel to

Increase the current capacity

Increase the internal resistance

Increase the efficiency

Increase the voltage output

TRUE ANSWER : ?
YOUR ANSWER : ?

The active materials of a nickel-iron battery are

powdered iron and its oxide

21% solution of kOH

nickel hydroxide

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Dry cell is modification of

Lead-acid cell

Leclanche cell

Deniell cell

Edison cell

TRUE ANSWER : ?
YOUR ANSWER : ?

Level of electrolyte in a cell should be _____ the level of plates

equal to

below

none of the listed here

above

TRUE ANSWER : ?
YOUR ANSWER : ?

Over charging

increases the temperature resulting in buckling of plates

all of the listed here

loosens the active material

produces excessive gassing

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Less than

Equal to

None of the listed here

More than

TRUE ANSWER : ?
YOUR ANSWER : ?

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