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Transmission and Distribution MCQs

Free 90+ Transmission and Distribution MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Practise below with answers and explanations.

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Transmission and Distribution — MCQs for Pakistan government job tests

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Transmission and Distribution

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1.In which part of the electrical network is a 3-phase 4-wire system most frequently utilized?

2.Under which environmental condition is the likelihood of coronavirus transmission higher?

3.Which material is not used as a component in the manufacture of porcelain insulators?

4.Which material is commonly utilized for overhead power transmission lines?

5.When is the transmitted power at its highest level?

6.In a power transmission network, what does a feeder supply electricity to?

7.Why is ozone produced by corona discharge considered harmful?

8.What is the typical range of surge impedance for an overhead transmission line?

9.Which voltage level is generally uncommon as a generator's output voltage?

10.Compared to a 2-wire DC distributor operating at the same maximum voltage to earth, a 3-wire distributor requires what percentage of copper?

11.A D.C. distributor with a uniform load is supplied with the same voltage from both ends. How does the voltage drop at the midpoint compare to that of an identical distributor powered from only one end?

12.If the supply voltage of a DC 2-wire feeder is doubled while keeping the transmitted power constant, what percentage of copper savings is achieved?

13.At what voltage level is electrical power typically delivered to major industrial users?

14.What is the typical distance separating the phase conductors on a 220 kV transmission line?

15.What is the minimum required clearance between the ground and a 220 kV power line?

16.Which material is most frequently utilized for the outer covering of underground cables?

17.Which material is commonly employed as the protective armour for high voltage cables?

18.What material is commonly used to manufacture cross-arms in transmission lines?

19.Which type of conductor is most commonly used for overhead power lines?

20.What is the typical power factor characteristic of industrial electrical loads?

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