A. rectifiers
B. engine generator sets
C. motor generator sets
D. any one of the above methods
Related Mcqs:
- The active material of the positive plates of silver-zinc batteries is_________?
A. silver oxide
B. lead oxide
C. lead
D. zinc powder - Life of the batteries is in the following ascending order____________?
A. Lead-acid cell, Edison cell, Nickel cadmium cell
B. Lead-acid cell, Nickel-cadmium cell, Edison cell
C. Edison cell, Nickel-cadmium cell, lead-acid cell
D. Nickel-cadmium cell, Edison cell, lead-acid cell - When two batteries are connected in parallel, it should be ensured that___________?
A. they have same e.m.f.
B. they have same make
C. they have same ampere-hour capacity
D. they have identical internal resistance - When a lead-acid battery is in fully charged condition, the color of its positive plate is__________?
A. dark grey
B. brown
C. dark brown
D. none of above - The active materials on the positive and negative plates of a fully charged lead-acid battery are_______?
A. lead and lead peroxide
B. lead sulphate and lead
C. lead peroxide and lead
D. none of the above - When the lead-acid cell is fully charged, the electrolyte assumes _______ appearance
A. dull
B. reddish
C. bright
D. milky - The e.m.f. of an Edison cell, when fully charged, is nearly______________?
A. 1.4 V
B. 1 V
C. 0.9 V
D. 0.8 V - In constant-current charging method, the supply voltage from discharged to fully charged condition____________?
A. decreases
B. increases
C. remains constant
D. none of the above - 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 - 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
