Time Left - 30:00 mins

GATE 2020 || Revision Test 6 (App update required to attempt this test)

Attempt now to get your rank among 311 students!

Question 1

Which of the following will have distorted output when applied to an op-amp of Slew Rate 5V/μsec?

Question 2

At which frequency does the Bode magnitude plot for the function

have Gain crossover frequency?

Question 3

Let the decimal value of a 6-bit 1’s complement number: 100000 be A and let the decimal value of a 6-bit 2’s complement number: 100000 be B. Then value of (A-B) is

Question 4

A moving-coil voltmeter has a resistance of 40 Ω. The scale is divided into 120 equal divisions. When a potential difference of 0.8 V is applied to the terminals of the voltmeter a deflection of 80 divisions is obtained. How much resistance(in KΩ) should be connected in series so that it read up to 220 V?

Question 5

In a 3-

transmission line voltage drop across each line is given by the following equation :

If the line has zero sequence reactance of

and positive sequence reactance of

then the values of and will be.

Question 6

In the circuit shown in figure below:

The minimum value of such that transistor is in saturation is

Question 7

The closed-loop transfer function of a system is

The steady state error due to unit step input is ___________.

Question 8

Identify the characteristic equation of X-Y flip flop whose truth table is given

Question 9

A 400 V dc shunt motor with a constant main field drives a load, the torque of which varies as square of speed. When running at 500 rpm, it takes 20 A. Find the speed in rpm at which it will run, if a 10 Ω resistor is connected in series with armature. Neglect motor losses.

Question 10

Consider a circuit as shown in fig below

Equivalent resistance across the terminals A & B is_____Ω.

Question 11

An LPF wattmeter of power factor 0.2 is having three voltage settings 300 V, 150 V and 75 V, and two current settings 5 A and 10 A. The full scale reading is 150. If the wattmeter is used with 150 V voltage setting and 10 A current setting, the multiplying factor of the wattmeter is _________.

Question 12

An overhead line with surge impedance of 400 ohm is connected to a terminal apparatus through a short length of cable of surge impedance of 50 ohm. A travelling wave of constant magnitude of 100 kV and infinite duration originates in the overhead line and travels towards with the cable. The energy transmitted into cable during a period of 9 µsec after the arrival of the wave at the junction is [in Joule]

Question 13

Two