ELECTROLYSIS AND STORAGE BATTERIES QUIZ

When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in

discharged state

none of the listed here

active state

charged state

TRUE ANSWER : ?
YOUR ANSWER : ?

The best indication about the state of charge on a lead-acid battery is given by

none of the listed here

specific gravity of electrolyte

output voltage

temperature of electrolyte

TRUE ANSWER : ?
YOUR ANSWER : ?

Internal short circuits are caused by

both of the options given here

none of the listed here

breakdown of one or more separators

excess accumulation of sediment at the bottom of the cell

TRUE ANSWER : ?
YOUR ANSWER : ?

Under normal charging rate, the charging current should be

20% of capacity

40% of capacity

30% of capacity

10% of capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

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

4

3

5

2

TRUE ANSWER : ?
YOUR ANSWER : ?

Which among the following constitutes the major load for an automobile battery ?

Self starter

Parking lights

Brake light

Spark plugs

TRUE ANSWER : ?
YOUR ANSWER : ?

Mercury cell has which of the following characteristics?

High power to weight ratio

All of these

Flat discharge current-voltage curve

Comparatively longer shelf life under adverse conditions of high temperature and humidity

TRUE ANSWER : ?
YOUR ANSWER : ?

In a battery cover is placed over the element and sealed to the top of the battery container. This is done

to exclude dirt and foreign matter from the electrolyte

Both of the listed here

None of the listed here

to reduce evaporation of water from electrolyte

TRUE ANSWER : ?
YOUR ANSWER : ?

When a lead-acid battery is in fully charged condition, the color of its positive plate is

dark grey

none of the listed here

brown

dark brown

TRUE ANSWER : ?
YOUR ANSWER : ?

Ampere hour capacity of an industrial battery is based on ____ hours discharge rate.

8

24

10

12

TRUE ANSWER : ?
YOUR ANSWER : ?