A. 48 amperes for 1 hour
B. 24 amperes for 2 hours
C. 8 amperes for 6 hours
D. 6 amperes for 8 hours
Related Mcqs:
- The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is____________?
A. just one
B. always greater than one
C. always less than one
D. none of the above - Ampere hour capacity of an industrial battery is based on _______ hours discharge rate
A. 8
B. 12
C. 16
D. 24 - The ampere-hour efficiency of a lead acid cell is normally between_________?
A. 20 to 30%
B. 40 to 50%
C. 60 to 70%
D. 90 to 95% - On the average the ampere-hour efficiency of an Edison cell is about__________?
A. 40%
B. 60%
C. 70%
D. 80% - 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 - The watt-hour efficiency of a lead-acid cell varies between________?
A. 25 to 35%
B. 40 to 60%
C. 70 to 80%
D. 90 to 95% - Excessive formation of lead sulphate on the surface of the plates happens because of___________?
A. allowing a battery to stand in discharged condition for a long time
B. topping up with electrolyte
C. persistent undercharging
D. low level of electrolyte
E. all above - Battery container should be acid resistance, therefore it is made up of___________?
A. glass
B. plastic
C. wood
D. all above - The body of Edison cell is made of___________?
A. bakelite
B. rubber
C. nickel plated steel
D. aluminium - In a lead-acid battery the energy is stored in the form of___________?
A. charged ions
B. chemical energy
C. electrostatic energy
D. electromagnetic energy
