ELECTROLYSIS AND STORAGE BATTERIES QUIZ

The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.

4

5

2

3

TRUE ANSWER : ?
YOUR ANSWER : ?

During discharge, the active material of both the positive and negative plates is changed to

Pb

PbS02

Pb02

PbS04

TRUE ANSWER : ?
YOUR ANSWER : ?

The open circuit voltage of any storage cell depends wholly upon

on the strength of its electrolyte

its temperature

all of the listed here

its chemical constituents

TRUE ANSWER : ?
YOUR ANSWER : ?

The body of Edison cell is made of

bakelite

aluminium

nickel plated steel

rubber

TRUE ANSWER : ?
YOUR ANSWER : ?

Level of electrolyte in a cell should be _____ the level of plates

above

below

none of the listed here

equal to

TRUE ANSWER : ?
YOUR ANSWER : ?

Following will happen if battery charging rate is too high

temperature rise will occur

excessive gassing will occur

all of the listed here

bulging and buckling of plates will occur

TRUE ANSWER : ?
YOUR ANSWER : ?

It is noticed that during discharging the following does not happen

specific gravity of H2SO4 decreases

both anode and cathode become PbS04

voltage of the cell decreases

the cell absorbs energy

TRUE ANSWER : ?
YOUR ANSWER : ?

Electrolyte used in an Edison cell is

HN03

NaOH

kOH

HC1

TRUE ANSWER : ?
YOUR ANSWER : ?

Cell short circuit results in

low sp. gravity electrolyte

abnormal high temperature

reduced gassing on charge

all of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Excessive charging a battery tends to

increase the internal resistance of the battery

to corrode the positive plates into lead peroxide thereby weakening them physically

bring about all above changes

produce gassing

TRUE ANSWER : ?
YOUR ANSWER : ?

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