| 1. | The operating voltage of extra high tension cables is upto ? | |
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6.6 kV
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11 Kv
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33 kV
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66 kV
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View Answer
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Report Question| 2. | Galvanised steel wire is generally used as ? | |
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stay wire
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earth wire
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structural components
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all of the above
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| 3. | ...... are the conductors, which connect the consumer's terminals to the distribution ? | |
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Distributors
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Service mains
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Feeders
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None of the above
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| 4. | The angular displacement between two interconnected stations is mainly due to ? | |
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armature reactance of both alternators
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reactance of the interconnector
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synchronous reactance of both the alternators
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all of the above
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| 5. | The ground ring transmission lines are used to ? | |
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reduce the transmission losses
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reduce the earth capacitance of the lowest unit
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increase the earth capacitance of the lowest unit
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none of the above
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| 6. | A 3-phase 4 wire system is commonly used on ? | |
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primary transmission
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secondary transmission
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primary distribution
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secondary distribution
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| 7. | The presence of ozone due to corona is harmful because it ? | |
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reduces power factor
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corrodes the material
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gives odour
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transfer energy to the ground
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| 8. | In transmission lines the cross-arms are made of ? | |
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copper
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wood
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R.C.C.
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steel
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| 9. | Besides a method of trial and error, which of the following methods is employed for solution of network problems in interconnected system ? | |
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Circulating current method
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Thevenin's theorem
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Superposition of currents
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All of the above
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| 10. | AC. S.R conductor having 7 steel stands surrounded by 25 aluminium conductors will be specified as ? | |
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25/7
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7/25
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50/15
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15/50
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