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- 1. Multiple Choice
The storage battery generally used in electric power station is
Nickel-cadmium battery
Zinc carbon battery
Lead-acid battery
None of the above
- 2. Multiple Choice
Batteries are charged by
Rectifiers
Engine generator sets
Motor generator sets
Any of the above
- 3. Multiple Choice
In a single cell, the two electrodes are separated from each other by——
1mm
1cm
0.5mm
0.5cm
- 4. Multiple Choice
In voltaic cell, anode and cathode of the cell is
copper electrode, zinc
zinc, copper
aluminium, zinc
nickel, cobalt
- 5. Multiple Choice
The emf of the dry cell is about
0 V
0.5 V
1 V
1.5 V
- 6. Multiple Choice
Secondary’s cells are
lead acid cell
alkaline cell
both (a) and (b)
none of these
- 7. Multiple Choice
Which of the following battery is used for aircraft?
Lead acid battery
Nickel-iron battery
Dry cell battery
Silver oxide battery
- 8. Multiple Choice
The electrode for a battery must be
A semi conductor
An insulator
A good conductor of electricity
A bad conductor of electricity
- 9. Multiple Choice
Dry cell is the modification of
Deniell cell
Leclanche cell
Lead acid cell
Edison cell
- 10. Multiple Choice
The efficiency of a lead acid cell varies between
25 to 35%
40 to 60%
70 to 80%
90 to 95%
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