The open circuit voltage of any storage cell depends wholly upon___________?

Related Mcqs:

1. Extent of corrosion in the underground metal work depends upon___________?

   A. amount of moisture
   B. type of metals
   C. type of soil chemicals
   D. all above factors

2. Cell short circuit results in_________?

   A. low sp. gravity electrolyte
   B. abnormal high temperature
   C. reduced gassing on charge
   D. all above

3. The average charging voltage for alkali cell is about__________?

   A. 1 V
   B. 1.2 V
   C. 1.7 V
   D. 2.1 V

4. 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

5. Weston standard cell at 20°C has voltage of _______ volts

   A. 0.8
   B. 0.9
   C. 1.0187
   D. 1.5

6. The capacity of a lead-acid cell depends on

   A. rate of discharge
   B. temperature
   C. density of electrolyte
   D. quantity of active materials
   E. all above

7. 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

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

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

9. 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

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

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