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.Management Sciences
Category: Electrolysis and Storage of Batteries
Life of the Edison cell is at least_____________?
A. five years
B. seven years
C. eight years
D. ten years
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
Which among the following constitutes the major load for an automobile battery _________?
A. Brake light
B. Self starter
C. Parking lights
D. Spark plugs
The internal resistance of a lead-acid cell is that of Edison cell____________?
A. less than
B. more than
C. equal to
D. none of the above
Over charging______________?
A. produces excessive gassing
B. loosens the active material
C. increases the temperature resulting in buckling of plates
D. all above
Capacity of dry cells is_________?
A. more when it is supplying current for intermittent periods
B. more when it is supplying current for continuous periods
C. unaffected by the type of discharge
D. none of the above
A constant-voltage generator has___________?
A. minimum efficiency
B. minimum current capacity
C. low internal resistance
D. high internal resistance
When the load resistance equals the generator resistance which of the following will be maximum __________?
A. Current
B. Efficiency of the circuit
C. Power in the load resistance
D. Voltage across the load resistance
When the lead-acid cell is fully charged, the electrolyte assumes _______ appearance
A. dull
B. reddish
C. bright
D. milky
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%
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