ELECTROLYSIS AND STORAGE BATTERIES QUIZ

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

All of these

Specific gravity of electrolyte

Temperature of surroundings

Rate of discharge

TRUE ANSWER : ?
YOUR ANSWER : ?

Under normal charging rate, the charging current should be

40% of capacity

20% of capacity

10% of capacity

30% of capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

Excessive formation of lead sulphate on the surface of the plates happens because of

persistent undercharging

all of the listed here

low level of electrolyte

allowing a battery to stand in discharged condition for a long time

TRUE ANSWER : ?
YOUR ANSWER : ?

On the average the ampere-hour efficiency of an Edison cell is about

0.4

0.7

0.8

0.6

TRUE ANSWER : ?
YOUR ANSWER : ?

In a lead-acid battery the energy is stored in the form of

electromagnetic energy

charged ions

chemical energy

electrostatic energy

TRUE ANSWER : ?
YOUR ANSWER : ?

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

None of the listed here

Decreases

Increases

Remains same

TRUE ANSWER : ?
YOUR ANSWER : ?

Cells are connected in series in order to

increase the voltage rating

increase the current rating

None of the listed here

increase the life of the cells

TRUE ANSWER : ?
YOUR ANSWER : ?

Dry cell is modification of

Deniell cell

Lead-acid cell

Leclanche cell

Edison cell

TRUE ANSWER : ?
YOUR ANSWER : ?

Batteries are charged by

motor generator sets

any one of the listed here

rectifiers

engine generator sets

TRUE ANSWER : ?
YOUR ANSWER : ?

The open circuit voltage of any storage cell depends wholly upon

its temperature

on the strength of its electrolyte

its chemical constituents

all of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

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