ELECTROLYSIS AND STORAGE BATTERIES QUIZ

Which of the following primary cells has the highest voltage ?

Lithium

Carbon-zinc

Mercury

Manganese-alkaline

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1000

1250

500

700

TRUE ANSWER : ?
YOUR ANSWER : ?

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

remains constant

increases

none of the listed here

decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

Persons preparing electrolyte should wear

rubber boots and gloves

rubber

all of these

goggles or other face shield

TRUE ANSWER : ?
YOUR ANSWER : ?

For a cell to work, which of the following condition(s) become necessary ?

Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other

Electrolyte liquid or paste should be conducting

All of the listed here

Electrolyte must chemically react with one of the electrodes

TRUE ANSWER : ?
YOUR ANSWER : ?

When two batteries are connected in parallel, it should be ensured that

they have same ampere-hour capacity

they have same e.m.f.

they have identical internal resistance

they have same make

TRUE ANSWER : ?
YOUR ANSWER : ?

The charge required to liberate one gram equivalent of any substance is known as ______ constant

Boltzman

None of the listed here

Faraday’s

Time

TRUE ANSWER : ?
YOUR ANSWER : ?

When the lead-acid cell is fully charged, the electrolyte assumes _____ appearance

milky

dull

bright

reddish

TRUE ANSWER : ?
YOUR ANSWER : ?

The ampere-hour efficiency of a leadacid cell is normally between

80 to 85%

20 to 35%

70 to 75%

90 to 95%

TRUE ANSWER : ?
YOUR ANSWER : ?

Cells are connected in parallel to

Increase the internal resistance

Increase the efficiency

Increase the current capacity

Increase the voltage output

TRUE ANSWER : ?
YOUR ANSWER : ?