A. 8
B. 12
C. 16
D. 24
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 - 48 ampere-hour capacity would deliver a current of___________?
A. 48 amperes for 1 hour
B. 24 amperes for 2 hours
C. 8 amperes for 6 hours
D. 6 amperes for 8 hours - 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% - In a battery cover is placed over the element and sealed to the top of the battery container. This is done____________?
A. to reduce evaporation of water from electrolyte
B. to exclude dirt and foreign matter from the electrolyte
C. to discharge both of the above functions
D. to discharge none of the above functions - 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 - Which of the following factors adversely affects the capacity of the leadacid battery ?
A. Temperature of surroundings
B. Specific gravity of electrolyte
C. Rate of discharge
D. All of the above - A battery of 6 cells will show a drop of _______ volts from fully charged state to fully discharged state
A. 1.0
B. 1.5
C. 2.4
D. 2.9 - Following will happen if battery charging rate is too high______________?
A. excessive gassing will occur
B. temperature rise will occur
C. bulging and buckling of plates will occur
D. all above will occur - Charging a sulphated battery at high rate results in___________?
A. boiling of electrolyte due to gassing
B. warping of plates
C. damage to separators, cell caps covers and battery case due to excessive temperature
D. all above
