| 1. | The function of circuit breaker is ? | |
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to safe guard the circuit
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to On and Off the circuit
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to safe human life
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None of these
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View Answer
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Report Question| 2. | Wiring clips are usually made of ? | |
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copper
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steel
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Brass
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aluminium
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| 3. | The switch unit need not be on the what type of wire ? | |
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Phase
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Neutral
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earth
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any of the options
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| 4. | One unit of electrical energy equals ? | |
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1Kwh
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1Wh
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10 Wh
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100 Wh
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| 5. | Filaments of electric bulbs are usually made of ? | |
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Nichrome
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carbon
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copper
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tungsten
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| 6. | Insulation resistance is expressed by ? | |
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ohm
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milli ohm
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mega ohm
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micro ohm
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| 7. | In which of the following equipments, current rating is not necessary ? | |
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circuit breaker
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relay
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Isolator
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load break switch
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| 8. | Which type of fan used between dust collector and chimney in thermal power plant ? | |
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Forced draft
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Induced draft
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Ceiling fan
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Table fan
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| 9. | Who invented the electric bulb ? | |
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Tesla
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Marconi
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Edison
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Benjamin
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| 10. | Incandescent lamp is filled by ? | |
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argon gas
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oxygen gas
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carbon di-oxide
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Sulphur oxide
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