electrical

Electrolysis and Storage Batteries MCQ With Answers Page - 2

1.

Electrolyte used in an Edison cell is

Answer/ Hint      

Answer : B

Explanation :

2.

Electrolytes used in a lead-acid cell is

Answer/ Hint      

Answer : D

Explanation :

3.

Negative plate of an Edison cell is made of

Answer/ Hint      

Answer : C

Explanation :

4.

The open circuit voltage of any storage cell depends wholly upon

Answer/ Hint      

Answer : D

Explanation :

5.

The specific gravity of electrolyte is measured by

Answer/ Hint      

Answer : C

Explanation :

6.

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

Answer/ Hint      

Answer : B

Explanation :

7.

In …….. system the charging current is intermittently controlled at either a maximum or minimum value

Answer/ Hint      

Answer : A

Explanation :

8.

Over charging……

Answer/ Hint      

Answer : D

Explanation :

9.

Undercharging………..

Answer/ Hint      

Answer : A

Explanation :

10.

Internal short circuits are caused by

Answer/ Hint      

Answer : C

Explanation :

11.

The effect of sulphation is that the internal resistance

Answer/ Hint      

Answer : A

Explanation :

12.

Excessive formation of lead sulphate on the surface of the plates happens because of

Answer/ Hint      

Answer : D

Explanation :

13.

The substances which combine together to store electrical energy during the charge are called ……… materials

Answer/ Hint      

Answer : A

Explanation :

14.

In a lead-cell, lead is called as

Answer/ Hint      

Answer : B

Explanation :

15.

The lead-cell should never be discharged beyond

Answer/ Hint      

Answer : A

Explanation :

16.

On overcharging a battery

Answer/ Hint      

Answer : D

Explanation :

17.

Each cell has a vent cap

Answer/ Hint      

Answer : D

Explanation :

18.

Following will occur if level of electrolyte falls below plates

Answer/ Hint      

Answer : D

Explanation :

19.

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

Answer/ Hint      

Answer : A

Explanation :

20.

48 ampere-hour capacity would deliver a current of

Answer/ Hint      

Answer : D

Explanation :

21.

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

Answer/ Hint      

Answer : B

Explanation :

22.

Battery charging equipment is generally installed

Answer/ Hint      

Answer : D

Explanation :

23.

What will be happen if the specific gravity of electrolyte becomes more than 1.23?

Answer/ Hint      

Answer : D

Explanation :

24.

Batteries are charged by

Answer/ Hint      

Answer : D

Explanation :

25.

Cell short circuits results in

Answer/ Hint      

Answer : D

Explanation :

26.

Internal resistance of a cell is reduced by

Answer/ Hint      

Answer : D

Explanation :

27.

Capacity of dry cell is

Answer/ Hint      

Answer : A

Explanation :

28.

Battery container should be acid resistance, therefore it is made up of

Answer/ Hint      

Answer : D

Explanation :

29.

Sulphated cells are indicated by

Answer/ Hint      

Answer : D

Explanation :

30.

Local action in a battery is indicated by

Answer/ Hint      

Answer : D

Explanation :

31.

Following will happen if battery charging rate is too high

Answer/ Hint      

Answer : D

Explanation :

32.

Internal resistance of a cell is due to

Answer/ Hint      

Answer : D

Explanation :

33.

If a battery is wrongly connected on charge following will happen

Answer/ Hint      

Answer : D

Explanation :

34.

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

Answer/ Hint      

Answer : A

Explanation :

35.

If a lead-acid cell is discharged below 1.8 V the following will happen.

Answer/ Hint      

Answer : D

Explanation :

36.

Life of the batteries is in the following ascending order

Answer/ Hint      

Answer : A

Explanation :

37.

Persons preparing electrolytes should wear

Answer/ Hint      

Answer : D

Explanation :

38.

Excessive charging a battery tends to

Answer/ Hint      

Answer : D

Explanation :

39.

Shelf life of a small dry cell is

Answer/ Hint      

Answer : B

Explanation :

40.

The current flow through electrolyte is due to the movement of

Answer/ Hint      

Answer : A

Explanation :

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