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AE 2019 || Day 40 || Combined Syllabus Quiz 4

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Question 1

For a BJT, and then the value of β is

Question 2

The system transfer function for the block diagram shown in figure below is given by

Question 3

Which one of the following is the correct free body diagram for the physical system as shown in the figure below?


and are displacements
and are velocities.

Question 4

Find the number of flip-flops required to count 16 clock pulses?

Question 5

Two's Complement of -19 in six digit representation will be:

Question 6

For a given applied voltage and current, the speed of a universal motor will be

Question 7

At 1200 rpm the induced emf of a dc machine is 200 V. For an armature current of 15 A the electromagnetic torque produced would be

Question 8

The desirable features of a servomotor are

Question 9

In a coil of 2mH inductance, current changes from 0.2 A to 1.5 A in 0.2 s. Find the magnitude of average induced emf in the coil.

Question 10

Varnish coating is done in transformer in order to:

Question 11

Consider the following statements regarding measurement of 3-phase power by two-wattmeter method; one of the wattmeter reads negative implying:
1) Power factor is less than 0.5.
2) Power flow is in the reverse direction.
3) Load power factor angle is greater than 60 °.
4) Load is unbalanced.
Which of the above statements are correct?

Question 12

The voltage coil of a single-phase house service energy meter

Question 13

The current and potential coils of a dynamometer type wattmeter were accidentally interchanged while connecting.
After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due to the

Question 14

The pole zero diagram of an impedance Z(s) is shown in the below figure. pole, zero

Poles are at and and zero (O) is at
For a signal the steady state response across is What is the value of θ?

Question 15

The poles and zeroes of a driving point impedance function, Z(s) are as follows:

i)  Poles 0, - 2                                  ii)   Zeroes -1, -3     

Also given that Z(∞) = 4 then Find the function Z(s)?

Question 16

The resonant frequency of an RLC series circuit is 1.5 MHz with the resonating capacitor of 150 pF. The bandwidth is 10 kHz. The effective value of the resistor is

Question 17

It is required to control the speed and braking operation of a dc shunt motor in both the directions of rotation. The most suitable power electronic circuit will be

Question 18

If a full wave fully controlled converter is modified as a full wave half controlled converter, what will be the maximum value of active power (P) and the maximum value of reactive power demand (Q)?

Question 19

Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching

Question 20

The Making and Breaking currents of 3 phase AC Circuit Breakers in Power system are respectively : 

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May 29ESE & GATE EE