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JE 2019 || Day 27 || Power Generation, Transmission & Distribution Quiz 3

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Question 1

In order to improve p.f. in case of 3-phase loads, the capacitors are connected in

Question 2

A 3-phase, 5 kW induction motor has a p.f. of 0.75 lagging. A bank of capacitors is connected in delta across the supply terminals and p.f. raised to 0.9 lagging. The kVAR rating of capacitors connected in each phase is

Question 3

The total load taken from an a.c. supply consists of
A- a heating load of 15 kW
B- a motor load of 40 kVA at p.f. 0.6 lagging
C- a load of 20 kW at p.f. 0.8 lagging
A capacitor is connected in parallel with load and p.f. raised to unity. The kVAR rating of the capacitor should be

Question 4

If C is the capacitance per phase for delta-connected capacitor bank, then capacitance per phase for star-connected capacitor bank is

Question 5

A workshop is consuming 500 kW at 0.707 p.f. lagging. A synchronous motor is connected to improve the p.f. to 0.95 lagging. If the synchronous motor takes 100 kW, p.f. of the motor is

Question 6

The overall efficiency of a steam power station is ………….. its thermal efficiency.

Question 7

In an interconnected grid system, the diversity factor of the whole system

Question 8

In interconnected grid system, more efficient plants are used as

Question 9

The peak power supplied by peak load station is

Question 10

Which of the following generating plants has the minimum operating cost?

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ESE & GATE EE General

Jun 14ESE & GATE EE