A. 2%
B. 4%
C. 6%
D. 8%
Related Mcqs:
- In constant voltage charging method, the charging current from discharged to fully charged condition_____________?
A. decreases
B. increases
C. remains constant
D. none of the above - Under normal charging rate, the charging current should be__________?
A. 10% of capacity
B. 20% of capacity
C. 30% of capacity
D. 40% of capacity - Charging of sulfated battery produces _________ heat
A. no
B. very little
C. less
D. more - During charging the specific gravity of the electrolyte of a lead-acid battery
A. increases
B. decreases
C. remains the same
D. becomes zero - During the charging of a lead-acid cell__________?
A. its voltage increases
B. it gives out energy
C. its cathode becomes dark chocolate brown in colour
D. specific gravity of H2SO4 decreases - During the charging and discharging of a nickel-iron cell____________?
A. corrosive fumes are produced
B. water is neither formed nor absorbed
C. nickel hydroxide remains unsplit
D. its e.m.f. remains constant - Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as________materials
A. passive
B. active
C. redundant
D. inert - In ________ system the charging current is intermittently controlled at either a maximum or minimum value
A. two rate charge control
B. trickle charge
C. floating charge
D. an equalizing charge - Excessive charging a battery tends to____________?
A. produce gassing
B. increase the internal resistance of the battery
C. to corrode the positive plates into lead peroxide thereby weakening them physically
D. bring about all above changes - 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
