Month: December 2018

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

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

A. 20 to 30%
B. 40 to 50%
C. 60 to 70%
D. 90 to 95%

A. dull
B. reddish
C. bright
D. milky

A. silver oxide
B. lead oxide
C. lead
D. zinc powder

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

A. 25 to 35%
B. 40 to 60%
C. 70 to 80%
D. 90 to 95%

A. maintain proper electrolyte level
B. increase its reserve capacity
C. prevent sulphation
D. keep it fresh and fully charged

A. there is a rise in voltage
B. energy is absorbed by the cell
C. specific gravity of H2SO4 is increased
D. the anode becomes chocolate brown in colour (PbCfe) and cathode becomes grey metallic lead (Pb)
E. all of the above

A. compactness
B. lower e.m.f.
C. small quantity of electrolyte used
D. higher internal resistance