| 1. | Ground wire is used to ? | |
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avoid overloading
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give the support to the tower
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give good regulation
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connect a circuit conductor or other device to an earth-plate
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View Answer
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Report Question| 2. | Transmission lines link ? | |
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generating station to receiving end station
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receiving end station to distribution transformer
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distribution transformer to consumer premises
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service points to consumer premises
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| 3. | High voltage is primarily used, for long distance power transmission, to ? | |
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reduce the time of transmission
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reduce the transmission losses
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make the system reliable
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none of the above
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| 4. | Steepness of the travelling waves is alternated by ....... of the line ? | |
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capacitance
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inductance
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resistance
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all of the above
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| 5. | By which o{ the following factors is the sag of a transmission line least affected ? | |
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Current through the conductor
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lee deposited on the conductor
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Self weight of conductor
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Temperature of surrounding air
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| 6. | Induction regulators are used for voltage control in ? | |
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alternators
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primary distribution
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secondary distribution
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none of the above
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| 7. | The following system is not generally used ? | |
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1-phase 3 wire
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1-phase 4 wire
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3-phase 3 wire
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3-phase 4 wire
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| 8. | Which of the following relays is used on long transmission lines ? | |
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Impedance relay
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Mho's relay
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Reactance relay
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None of the above
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| 9. | The power factor of industrial loads is generally ? | |
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unity
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lagging
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leading
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zero
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| 10. | Overhead lines generally use ? | |
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copper conductors
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all aluminium conductors
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AC .S.R conductors
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none of these
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