GATE EE format:mcq PYQs & Answers — Page 26

Questions 251–260 of 437. Imported answers require independent review unless marked reviewed.

Topic practice 437 questionsPage 26 of 44

Out of the following options, the most relevant information needed to specify the real power (P) at the PV buses in a load flow analysis is

Your answerChoose one option.

solution of economic load dispatch

rated power output of the generator

rated voltage of the generator

base power of the generator

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Consider a linear time-invariant system whose input

and output

are related by the following differential equation:

The poles of this system are at

Your answerChoose one option.

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A single-phase, full-bridge diode rectifier fed from a 230 V, 50 Hz sinusoidal source supplies a series combination of finite resistance, R, and a very large inductance, L. The two most dominant frequency components in the source current are:

Your answerChoose one option.

50 Hz, 0 Hz

50 Hz, 100 Hz

50 Hz, 150 Hz

150 Hz, 250 Hz

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Thyristor

is triggered at an angle

(in degree), and

at angle

, in each cycle of the sinusoidal input voltage. Assume both thyristors to be ideal. To control the load power over the range 0 to 2 kW, the minimum range of variation in

is:

Diagram for Electrical Engineering question 12

Your answerChoose one option.

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Which of the options is an equivalent representation of the signal flow graph shown here?

Diagram for Electrical Engineering question 13

Your answerChoose one option.

Diagram for Electrical Engineering question 13 (figure 2)

Diagram for Electrical Engineering question 13 (figure 3)

Diagram for Electrical Engineering question 13 (figure 4)

Diagram for Electrical Engineering question 13 (figure 5)

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A common-source amplifier with a drain resistance,

, is powered using a 10 V power supply. Assuming that the transconductance,

, is 520

A/V, the voltage gain of the amplifier is closest to:

Your answerChoose one option.

−2.44

−1.22

1.22

2.44

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A sequence detector is designed to detect precisely 3 digital inputs, with overlap sequences detectable. For the sequence (1,0,1) and input data (1,1,0,1,0,0,1,1,0,1,0,1,1,0), what is the output of this detector?

Your answerChoose one option.

1,0,0,0,0,1,1,0,1,0,0

0,1,0,0,0,0,1,0,1,0,0

0,1,0,0,0,0,1,0,1,1,0

0,1,0,0,0,0,0,1,0,0,0

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For real numbers,

and

, with

, the maximum and minimum value of

for

are respectively, ________.

Your answerChoose one option.

7 and 1/4.

7 and 1.

−2 and −1/2.

1 and 1/4.

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The vector function expressed by

represents a conservative field, where

are unit vectors along x, y and z directions, respectively. The values of constants

are given by:

Your answerChoose one option.

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A 250 V dc shunt motor has an armature resistance of 0.2

and a field resistance of 100

. When the motor is operated on no-load at rated voltage, it draws an armature current of 5 A and runs at 1200 rpm. When a load is coupled to the motor, it draws total line current of 50 A at rated voltage, with a 5 % reduction in the air-gap flux due to armature reaction. Voltage drop across the brushes can be taken as 1 V per brush under all operating conditions. The speed of the motor, in rpm, under this load condition, is closest to:

Your answerChoose one option.

1200

1000

1220

900

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GATE EE format:mcq PYQs

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14

Question 15

Question 26

Question 27

Question 28