ELECTROLYSIS AND STORAGE BATTERIES QUIZ

Under normal charging rate, the charging current should be

40% of capacity

30% of capacity

20% of capacity

10% of capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

In order that a hydrometer may float vertically in electrolyte its C.G. should be

displaced sideways

raised

lowered

undisturbed

TRUE ANSWER : ?
YOUR ANSWER : ?

The active material of the positive plates of silver-zinc batteries is

zinc powder

lead

silver oxide

lead oxide

TRUE ANSWER : ?
YOUR ANSWER : ?

A dead storage battery can be revived by

a dose of H₂SO₄

adding distilled water

adding so-called battery restorer

none of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Specific gravity of electrolyte in Edison cell is

1.1

1.5

2.0

1.21

TRUE ANSWER : ?
YOUR ANSWER : ?

The average charging voltage for alkali cell is about

2.1 V

1 V

1.2 V

1.7 V

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following cell has a reversible chemical reaction ?

Carbon-zinc

Lead-acid

Mercury oxide

Silver-oxide

TRUE ANSWER : ?
YOUR ANSWER : ?

Battery charging equipment is generally installed

In clean and dry place

In well ventilated location

As near as practical to the battery being charged

All of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

If a battery is wrongly connected on charge following will happen

current drawing will be very high

current drawing will be very small

current delivered by the battery will be high

current drawing will be nil

TRUE ANSWER : ?
YOUR ANSWER : ?

During the charging and discharging of a nickel-iron cell

nickel hydroxide remains unsplit

water is neither formed nor absorbed

corrosive fumes are produced

its e.m.f. remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

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