Dry cell is modification of____________?

Related Mcqs:

1. Shelf life of a small dry cell is___________?

   A. equal to that of large dry cell
   B. less than that of large dry cell
   C. more than that of large dry cell
   D. none of the above

2. As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its__________?

   A. compactness
   B. lower e.m.f.
   C. small quantity of electrolyte used
   D. higher internal resistance

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

   A. two
   B. three
   C. four
   D. five

4. 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

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

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

6. Capacity of dry cells is_________?

   A. more when it is supplying current for intermittent periods
   B. more when it is supplying current for continuous periods
   C. unaffected by the type of discharge
   D. none of the above

7. The capacity of a battery is expressed in terms of____________?

   A. current rating
   B. voltage rating
   C. ampere-hour rating
   D. none of the above

8. The current flow through electrolyte is due to the movement of____________?

   A. ions
   B. holes
   C. electrons
   D. none of the above

9. Short circuiting of a cell may be caused____________?

   A. buckling of plates
   B. faulty separators
   C. lead particles forming circuit between positive and negative plates
   D. excessive accumulation of sediment
   E. any one of above

10. Which of the following cell has a. reversible chemical reaction ___________?

    A. Lead-acid
    B. Mercury oxide
    C. Carbon-zinc
    D. Silver-oxide