ELECTROLYSIS AND STORAGE BATTERIES QUIZ

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

decreases

remains the same

none of the listed here

increases

TRUE ANSWER : ?
YOUR ANSWER : ?

As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its

compactness

lower e.m.f.

higher internal resistance

small quantity of electrolyte used

TRUE ANSWER : ?
YOUR ANSWER : ?

In a lead-acid cell, lead is called as

None of the listed here

passive material

positive active material

negative active material

TRUE ANSWER : ?
YOUR ANSWER : ?

During the charging and discharging of a nickel-iron cell

water is neither formed nor absorbed

corrosive fumes are produced

nickel hydroxide remains unsplit

its e.m.f. remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

A battery of 6 cells will show a drop of _____ volts from fully charged state to fully discharged state.

2.4

2.5

2.0

2.8

TRUE ANSWER : ?
YOUR ANSWER : ?

The output voltage of a charger is

the same as the battery voltage

less than the battery voltage

higher than the battery voltage

none of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The lead-acid cell should never be discharged beyond

2.1 V

1.9 V

2 V

1.8 V

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following primary cells has the lowest voltage ?

Carbon-zinc

Mercury

Lithium

Zinc-chloride

TRUE ANSWER : ?
YOUR ANSWER : ?

The current flow through electrolyte is due to the movement of

holes

None of these

ions

electrons

TRUE ANSWER : ?
YOUR ANSWER : ?

Over charging

all of the listed here

increases the temperature resulting in buckling of plates

produces excessive gassing

loosens the active material

TRUE ANSWER : ?
YOUR ANSWER : ?

↑