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Transmission & Distribution

Transmission & Distribution
As a rough guide, the most economical transmission voltage is _____of the length of the line.

3 kV/km
2kV/km
1.6 kV/km
3.2kV/km

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Transmission & Distribution
Which of the following faults is most likely to occur in cables?

All of these
Breakdown of cable insulation
Cross or short-circuit fault
Open circuit fault

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Transmission & Distribution
Voltage of primary distribution system is

400 V
11 kV
230 V
33 kV

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Transmission & Distribution
The wooden poles well impregnated with creosote oil or any preservative compound has life

60 to 70 years
10 to 15 years
25 to 30 years
From 2 to 5 years

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Transmission & Distribution
With the increase in the values of voltage and power factor, the cost of transmission line conductor

Is unaffected
Decreases
Increases exponentals
Increases

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Transmission & Distribution
The angular displacement between two interconnected stations is mainly due to

Armature reactance of both alternators
All of these
Synchronous reactance of both the alternators
Reactance of the interconnector

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