ELECTROLYSIS AND STORAGE BATTERIES QUIZ

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

All of the listed here

Sulphation of plates will occur

Capacity of cell will reduce

Internal resistance will increase

TRUE ANSWER : ?
YOUR ANSWER : ?

Internal resistance of a cell is due to

resistance of electrolyte

electrode resistance

surface contact resistance between electrode and electrolyte

all of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

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

none of the listed here

remains constant

decreases

increases

TRUE ANSWER : ?
YOUR ANSWER : ?

Internal short circuits are caused by

excess accumulation of sediment at the bottom of the cell

breakdown of one or more separators

both of the options given here

none of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Extent of corrosion in the underground metal work depends upon

all of these

type of soil chemicals

amount of moisture

type of metals

TRUE ANSWER : ?
YOUR ANSWER : ?

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

always greater than one

always less than one

just one

none of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following factors adversely affects the capacity of the leadacid battery ?

Specific gravity of electrolyte

All of these

Rate of discharge

Temperature of surroundings

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following primary cells has the highest voltage ?

Mercury

Carbon-zinc

Manganese-alkaline

Lithium

TRUE ANSWER : ?
YOUR ANSWER : ?

The storage battery generally used in electric power station is

nickel-cadmium battery

none of the listed here

lead-acid battery

zinc-carbon battery

TRUE ANSWER : ?
YOUR ANSWER : ?

Specific gravity of electrolyte in Edison cell is

1.21

1.5

2.0

1.1

TRUE ANSWER : ?
YOUR ANSWER : ?

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