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Transmission & Distribution

Transmission & Distribution
Which of the following D.C. distribution system is the simplest and lowest in first cost?

None of these
Ring system
Radial system
Interconnected system

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Transmission & Distribution
By using bundled conductors which of the following is reduced?

None of the listed here
Inductance of the circuit
Power loss due to corona
Capacitance of the circuit

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Transmission & Distribution
In a balanced 3 wire dc system, the voltage across the outers is 500V. The voltage between any outer and neutral wire is

250 V
125 V
500 V
100 V

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Transmission & Distribution
In a supply system, the cost of conductor is

Directly proportional to area of cross section
None of the listed here
Directly proportional to sqaure of area of cross section
Inveresely proportional to area of cross-section

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Transmission & Distribution
Skin effect is noticeable only at _____ frequencies.

Low
High
Audio
All

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

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

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