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ESE 2021 Technical Quiz 1

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Question 1

Norton current (I­N) is ________A, across A & B.

Question 2

For also A commutation (Load commutation) the commutation circuit parametric L = 20 μH, C = 50 μF. For proper commutation what will be the value of load resistance

Question 3

In a cascade amplifier β of CE configuration BJT is 100 and re = 10 Ω. The values of CD and CT are 10nF and 20 nF respectively. Find the bandwidth of amplifiers.

Question 4

The unit step response of a first order system is shown in figure below. The transfer function is

Question 5

Which of the following statements about root locus technique is/ are correct?

1) This method is used for analysing transient as well as steady state response.

2) This method can handle more than one variable at a time.

3) Root locus is symmetrical about real axis in s-plane and moves away from real axis at breakaway points.

Question 6

A star connected load is supplied by a 50 Hz source. The rating of load is 20 KVA, 0.8 pf lagging. If the receiving end voltage is 400 V then what is the per phase capacitance of delta connected bank required to bring power factor to unity?

Question 7

Statement 1: Damping windings are used for starting a synchronous motor.

Statement 2: Damping windings are heavy copper bar inserted in slots of pole faces which are short circuited at both ends of the rotor thus acting as squirrel cage winding.

Question 8

Which of the following statement is true for Induction generator.

Question 9

A signal x(t) is having Fourier transform X(ω). At ω = 0, X(ω) = 3. Then the area of signal x(t) is

Question 10

For time varying filed correct relation is (= Vector potential of magnetic field and  = Electric filed intensity).
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Jan 29ESE & GATE EE