Related Questions

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
The ampere-hour efficiency of a leadacid cell is normally between
A 20 to 30%
B 40 to 50%
C 60 to 70%
D 90 to 95%
There are 87 balls in a jar. Each ball is painted with at least one of two colors, red or green. It is observed that 2/7 of the balls that have red color also have green color, while 3/7 of the balls that have green color also have red color. what fraction of the balls in the jar has both red and green colors?
A 6/14
B 2/7
C 6/35
D 6/29
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
The composition of the electrolyte in a fully charged battery is that
A The electrolyte is pure distilled water
B The electrolyte is pure sulphuric acid
C The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight
D The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight
The specific gravity of acid in a fully charged battery is generally
A 1.00
B 1.28
C 1.82
D 2.81
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
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
For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as
A 2E
B 3E
C 4E
D 6E
Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface.
A Plane
B Curved
C Ribbed
D Either A or B

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