| 1. | The motor used on small lathes is usually ? | |
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universal motor
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D.C. shunt motor
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single-phase capacitor run motor
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3-phase synchronous motor 3-W
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Report Question| 2. | If the centrifugal switch does not open at 70 to 80 percent of synchronous speed of motor, it would result in ? | |
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damage to the starting winding
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damage to the centrifugal switch
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overloading of running winding
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None of these
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| 3. | Under no load conditions the current in a transmission line is due to ? | |
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corona effect
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capacitance of the line
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back low from earth
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Spinning reserve
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| 4. | If a fixed amount of power is to be transmitted over a certain length with fixed power loss, then ? | |
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the weight of the conductor required will be proportional to the voltage
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the weight of the conductor required will be inversely proportional to the voltage and that of power factor of the load
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the weight of the conductor required will be inversely proportional to the square of the voltage and that of power factor of the load
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the weight of the conductor will be proportional to the square of the voltage and directly proportional to the power factor of the load
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| 5. | Which of the following is a static exciter ? | |
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DC separately excited generator
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Amplidyne
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metadyne
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Rectifier
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| 6. | In cables, the thickness of the layer of insulation on the conductor depends upon ? | |
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current carrying capacity
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voltage
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power factor
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reactive power
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| 7. | In transmission line generally, the wires used are ? | |
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ASCR wires
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copper wires
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iron wires
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aluminium wires
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| 8. | Which one of the material is used to fix the screw on concrete wall and ceiling ? | |
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Link clips
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Bushings
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Saddles
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Rowl plug
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| 9. | Which type of insulation covering the conductor used for low voltage ? | |
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Poly-Vinyl Chloride (P.V.C)
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Paper
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Vulcanised Indian Rubber (V.I.R)
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Cotton and Silk Insulation
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| 10. | Cheapest system of wiring is ? | |
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casing and capping
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cleat wiring
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batten wiring
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conduit wiring
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