| 1. | Which of the following regulations is considered best ? | |
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50%
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20%
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10%
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2%
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Report Question| 2. | When the interconnector between two stations has large reactance ? | |
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the transfer of power will take place with voltage fluctuation and noise
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the transfer of power will take place with least loss
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the stations will fall out of step because of large angular displacement between the stations
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none of the above
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| 3. | In a tap changing transformer, the tappings are provided on ? | |
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primary winding
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secondary winding
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high voltage winding
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any of the above
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| 4. | Owing to skin effect ? | |
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current flows through the half cross-section of the conductor
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portion of the conductor near the surface carries more current and core of the conductor carries less current
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portion of the conductor near the surface carries less current and core of the conductor carries more current
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any of the above
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| 5. | The voltage of the single phase supply to residential consumers is ? | |
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110 V
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210 V
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230 V
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400 V
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| 6. | The distributors for residential areas are ? | |
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single phase
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three-phase three wire
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three-phase four wire
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none of the above
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| 7. | Which of the following are the constants of the transmission lines ? | |
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Resistance
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Inductance
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Capacitance
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All of the above
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| 8. | The cause of damage to the lead sheath of a cable is ? | |
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crystallisation of the lead through vibration
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chemical action on the lead when buried in the earth
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mechanical damage
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all of the above
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| 9. | Which of the following is usually not the generating voltage ? | |
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6.6 kV
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8.8 kV
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11 KV
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13.2 KV
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| 10. | Which of the following characteristics should the line supports for transmission lines possess ? | |
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Low cost
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High mechanical strength
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Longer life
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All of the above
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