Life of the Edison cell is at least_____________?
Life of the Edison cell is at least_____________?
A. five years
B. seven years
C. eight years
D. ten years
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Which of the following battery is used for air-craft _____________?
Which of the following battery is used for air-craft _____________?A. Lead-acid battery
B. Nickel-iron battery
C. Dry cell battery
D. Silver oxide batteryIf a battery is wrongly connected on charge following will happen__________?
If a battery is wrongly connected on charge following will happen__________?A. current delivered by the battery will be high
B. current drawing will be nil
C. current drawing will be very small
D. current drawing will be very highWhich of the following has lower specific gravity V__________?
Which of the following has lower specific gravity V__________?A. Dilute H2S04
B. Concentrated H2SO4
C. Water
D. Any of the aboveWhen the load resistance equals the generator resistance which of the following will be maximum __________?
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 resistanceFor a cell to work, which of the following condition(s) become necessary ___________?
For a cell to work, which of the following condition(s) become necessary ___________?A. Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other
B. Electrolyte must chemically react with one of the electrodes
C. Electrolyte liquid or paste should be conducting
D. All above three conditions are necessaryUndercharging___________?
Undercharging___________?A. reduces specific gravity of the electrolyte
B. increases specific gravity of the electrolyte
C. produces excessive gassing
D. increases the temperature