Electrolysis and storage batteries. Part – 1

1. Internal resistance of cell is

A. Increase with increase in distance between two electrode

B. Increase with increase in area of plate inside electrolyte

C. Increase by increasing the size of electrode

D. Decrease with increase of age of cell

2. A 6V lead acid cell having internal resistance 0.02Ω how much current will flow when battery is short circuited?

A. 300A

B. 6A

C. 12A

D. 200A

3. 1 Ah charge =______

A. 36 columbs

B. 360 columbs

C. 3600 columbs

D. 36000 columbs

4. The normal charging rate of (Ni-Fe) Edison alkali cell is

A. 1/2 of rated Ah capacity

B. 1/8 of rated Ah capacity

C. 1/10 of rated Ah capacity

D. 1/8 of rated Ah capacity

5. In Edison cell the positive plate consist of

A. Nickel hydroxide

B. Iron

C. Nickel oxide

D. Copper

6. Battery capacity is measured in

A. ampere  

B. voltage  

C. ampere hour

D. none of above

7. The storage battery generally used in electric power station is

A. Nickel cadmium

B. Zinc carbon battery

C. Lead acid battery

D. None of the above

8. Electrolyte used in an Edison cell is-

A. NaOH

B. KOH

C. HCL

D. NHO₃

9. Internal short circuits are caused by-

A. break down of one or more separators

B. excess accumulation of sediment at the bottom of the cell

C. both A and B

D. none of the above 

10. Batteries are charged by-

A. Rectifiers

B. Engine generator sets

C. Motor generator sets

D. Any one of the above method