The body of Edison cell is made of___________?

Related Mcqs:

1. Self charge of a Ni-Fe cell is _______ Edison cell

   A. equal to
   B. less than
   C. more than
   D. much more than

2. The e.m.f. of an Edison cell, when fully charged, is nearly______________?

   A. 1.4 V
   B. 1 V
   C. 0.9 V
   D. 0.8 V

3. On the average the ampere-hour efficiency of an Edison cell is about__________?

   A. 40%
   B. 60%
   C. 70%
   D. 80%

4. Life of the Edison cell is at least_____________?

   A. five years
   B. seven years
   C. eight years
   D. ten years

5. Electrolyte used in an Edison cell is___________?

   A. NaOH
   B. KOH
   C. HC1
   D. HN03

6. The internal resistance of a lead-acid cell is that of Edison cell____________?

   A. less than
   B. more than
   C. equal to
   D. none of the above

7. Negative plate of an Edison cell is made of__________?

   A. copper
   B. lead
   C. iron
   D. silver oxide

8. Specific gravity of electrolyte in Edison cell is_____________?

   A. 0.8
   B. 0.95
   C. 1.1
   D. 1.21

9. As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of___________?

   A. reducing time of charging
   B. increasing cell capacity
   C. both (A) and (B)
   D. avoiding excessive gassing

10. When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in___________?

    A. charged state
    B. discharged state
    C. both (A) and (B)
    D. active state