ELECTROLYSIS AND STORAGE BATTERIES QUIZ

Lead-acid cell has a life of nearly charges and discharges

1000

1250

500

700

TRUE ANSWER : ?
YOUR ANSWER : ?

In a lead-acid cell, lead is called as

positive active material

passive material

negative active material

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The body of Edison cell is made of

rubber

aluminium

nickel plated steel

bakelite

TRUE ANSWER : ?
YOUR ANSWER : ?

The common impurity in the electrolyte of lead-acid battery is

lead crystals

dust particles

iron

chlorine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

lowered

displaced sideways

raised

undisturbed

TRUE ANSWER : ?
YOUR ANSWER : ?

Cells are connected in parallel to

Increase the voltage output

Increase the internal resistance

Increase the efficiency

Increase the current capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

The average charging voltage for alkali cell is about

1.7 V

1.2 V

1 V

2.1 V

TRUE ANSWER : ?
YOUR ANSWER : ?

The active materials of a nickel-iron battery are

all of these

nickel hydroxide

powdered iron and its oxide

21% solution of kOH

TRUE ANSWER : ?
YOUR ANSWER : ?

Over charging

produces excessive gassing

increases the temperature resulting in buckling of plates

loosens the active material

all of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

When the load resistance equals the generator resistance which of the following will be maximum ?

Efficiency of the circuit

Current

Voltage across the load resistance

Power in the load resistance

TRUE ANSWER : ?
YOUR ANSWER : ?

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