| 1. | In house wiring which type of insulation is used ? | |
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rubber
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P.V.C
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V.I.R
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Paper
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Report Question| 2. | The unit of solid angle is ? | |
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Solid angle
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Radian
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Steradian
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Candela
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| 3. | In case of frosted GLS lamps, frosting of shell is done by ........... ? | |
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Acid etching
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ammonia
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ozone
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salt water
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| 4. | The resistance of arc ? | |
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Decreases with increase of the current
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Increases with increase of the current
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Does not depend on current
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None of these
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| 5. | For welding duty the rectifier commonly used are ? | |
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Mercury arc rectifier
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Selenium metal rectifier
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Both Mercury arc rectifier and Selenium metal rectifier
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None of these
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| 6. | The device necessarily used for automatic temperature control in a furnace is ? | |
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Thermostat
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Auto-transformer
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Thermo-couple
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Any of the options
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| 7. | The ideal method of heating plastics is ? | |
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Coal/oil fired furnace
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Dielectric heating
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Induction heating
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Resistance heating
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| 8. | The merging of a free electron and a hole is known as ? | |
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recombination
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extrusion
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absorption
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adsorption
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| 9. | The circuit that would be used for 455 kHz, if amplifier is ? | |
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resistance loaded
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double tuned transformer
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video amplifier
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class C
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| 10. | A transistor is a combination of two p-n junction with their ? | |
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p region connected together
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n region connected together
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n region connected to other p region
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p region connected together and n region connected together
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