GATE CH year:2017 PYQs & Answers

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–10 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 1 of 7

The value of

is _____.

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The real part of

is _____.

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The number of positive roots of the function

shown below in the range

is .

Diagram for Chemical Engineering question 3

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Let i and j be the unit vectors in the x and y directions, respectively. For the function

the gradient of the function, i.e.,

is given by

Your answerChoose one option.

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The marks obtained by a set of students are: 38, 84, 45, 70, 75, 60, 48. The mean and median marks, respectively, are

Your answerChoose one option.

45 and 75

55 and 48

60 and 60

60 and 70

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The volumetric properties of two gases M and N are described by the generalized compressibility chart which expresses the compressibility factor (

) as a function of reduced pressure and reduced temperature only. The operating pressure (

) and temperature (

) of two gases M and N along with their critical properties (

) are given in the table below.

Gas	(bar)	(K)	(bar)	(K)
M	25	300	75	150
N	75	1000	225	500

and

are the compressibility factor of the gases M and N under the given operating conditions, respectively. The relation between

and

Your answerChoose one option.

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Water is heated at atmospheric pressure from 40°C to 80°C using two different processes. In process I, the heating is done by a source at 80°C. In process II, the water is first heated from 40°C to 60°C by a source at 60°C, and then from 60°C to 80°C by another source at 80°C.

Identify the correct statement.

Your answerChoose one option.

Enthalpy change of water in process I is greater than enthalpy change in process II

Enthalpy change of water in process II is greater than enthalpy change in process I

Process I is closer to reversibility

Process II is closer to reversibility

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In a venturi meter,

and

are the pressure drops corresponding to volumetric flowrates

and

. If

, then

equals

Your answerChoose one option.

0.5

0.25

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The thickness of laminar boundary layer over a flat plate varies along the distance from the leading edge of the plate. As the distance increases, the boundary layer thickness

Your answerChoose one option.

increases

decreases

initially increases and then decreases

initially decreases and then increases

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Which of the following is the correct sequence of equipment for size reduction of solids?

Your answerChoose one option.

Diagram for Chemical Engineering question 10

Diagram for Chemical Engineering question 10 (figure 2)

Diagram for Chemical Engineering question 10 (figure 3)

Diagram for Chemical Engineering question 10 (figure 4)

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GATE CH year:2017 PYQs

How to practice year:2017

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10