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SSC JE 2019-20 Technical Quiz 45

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Question 1

Power factor of fluorescent lamp is about

Question 2

Setting depth of poles is

Question 3

What will happen if field winding Is disconnected accidently from rotating dc shunt motor?

Question 4

Which one of the following is the CORRECT value of magnetic permeability In free apace?

Question 5

Determine the reluctance (in Amp-turns/Wb) of a coil, when the flux through the coil is 15 Wb and the produced mmf is 30 Amp-turns.

Question 6

Which of the following is the dimension of capacitance?

Question 7

Power consumed by a balanced star connected 3-phase load is measured using two-wattmeter method. The phase voltage and phase current in the load is 220 V and 10 A respectively. What will be difference in reading (in W) of the two wattmeters, if the power factor of the system is 0.8 lagging?

Question 8

A delta connected 3-phase circuit has three equal resistances of 36 Ohms in each phase. What is the value of per phase resistance (in Ohms) of the equivalent star connected circuit?

Question 9

What is the value of capacitance (in μF) in the RLC circuit given below?

Question 10

Calculate the phase angle between the voltage and current phasor of a series RL circuit having resistance of 65 Ohms and inductive reactance of 37.53 Ohms when supplied by a frequency of 60 Hz.
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Apr 17ESE & GATE EE