Transmission and distribution

1. Low voltage cables are meant for use up to

1.1 kV
3.3 kV
6.6 kV
11 kV

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2. Which of the following are the constants of the transmission lines?

Resistance
Inductance
Capacitance
All of the above

Detailed SolutionWhich

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of the following are the constants of the transmission lines?

3. The use of strain type insulators is made where the conductors are

Dead ended
At intermediate anchor towers
Any of the above
None of the above

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type insulators is made where the conductors are" class="read-more button" href="https://exam.pscnotes.com/mcq/the-use-of-strain-type-insulators-is-made-where-the-conductors-are/#more-49546">Detailed SolutionThe use of strain type insulators is made where the conductors are

4. are the conductors, which connect the consumer’s terminals to the distribution

Distributors
Service mains
Feeders
None of the above

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the distribution" class="read-more button" href="https://exam.pscnotes.com/mcq/are-the-conductors-which-connect-the-consumers-terminals-to-the-distribution/#more-49450">Detailed Solutionare the conductors, which connect the consumer’s terminals to the distribution

5. The following system is not generally used

1-phase 3-wire
1-phase 4-wire
3-phase 3-wire
3-phase 4-wire

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6. Which of the following methods is used for laying of underground cables?

Direct laying
Draw-in-system
Solid system
All of the above

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href="https://exam.pscnotes.com/mcq/which-of-the-following-methods-is-used-for-laying-of-underground-cables/#more-48833">Detailed SolutionWhich of the following methods is used for laying of underground cables?

7. Transmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is

25 percent
50 percent
2-wire feeder is increased 100 percent, saving in copper is A. 25 percent B. 50 percent C. 75 percent
100 percent

Detailed SolutionTransmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is

8. Which of the following materials is used for overhead transmission lines?

Steel cored aluminium
Galvanised steel
Cadmium copper
Any of the above

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href="https://exam.pscnotes.com/mcq/which-of-the-following-materials-is-used-for-overhead-transmission-lines/#more-48716">Detailed SolutionWhich of the following materials is used for overhead transmission lines?

9. Constant voltage transmission entails the following disadvantage

Large conductor area is required for same power transmission
Short-circuit current of the system is increased
Either of the above
None of the above

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class="read-more-container">Detailed SolutionConstant voltage transmission entails the following disadvantage

10. The power factor of industrial loads is generally

Unity
Lagging
Leading
Zero

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href="https://exam.pscnotes.com/mcq/the-power-factor-of-industrial-loads-is-generally/#more-48330">Detailed SolutionThe power factor of industrial loads is generally

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