GATE CH purpose:exam-prep PYQs & Answers — Page 3

Questions 21–30 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 3 of 65

A two-dimensional temperature profile is given as

. If

and

are the unit vectors along x and y directions, respectively, which one of the following is the directional derivative of T at the location

Your answerChoose one option.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Which one of the following is the value of

Your answerChoose one option.

−1

∞

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Which one of the following is the pair of eigenvalues of the matrix

Your answerChoose one option.

−7, 7

−5, 5

−4, 3

−3, 4

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Which one of the following is produced by catalytic reforming of straight run gasoline and naptha?

Your answerChoose one option.

diesel oil

furnace oil

high octane gasoline

kerosene

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A process exhibits an inverse response to a step input. Which of the following statements is/are necessarily TRUE about the process?

Your answerSelect all correct options. You can choose more than one.

Its transfer function has a positive zero.

Its transfer function has a negative zero.

The initial direction of the step response is opposite to the final steady state value.

The system is unstable due to a zero in the right half of the s-plane.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Urea has its major use as a solid fertilizer for nitrogen fixation. Which of the following is/are other application(s) of urea?

Your answerSelect all correct options. You can choose more than one.

manufacturing of resin and plastics

melamine production

muriatic acid production

sulphamic acid production

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Which of the following statements regarding the heat of reaction is/are CORRECT?

Your answerSelect all correct options. You can choose more than one.

For endothermic reaction, it is positive.

For exothermic reaction, it is negative.

For exothermic reaction, it is positive.

It is the enthalpy change for a process in which stoichiometric quantities of reactants, at a temperature and pressure, react completely in a single reaction to form products at the same temperature and pressure.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In which of the following condition(s), Bernoulli’s equation is applicable?

Your answerSelect all correct options. You can choose more than one.

incompressible flow

inviscid flow

unsteady flow

flow along a streamline

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Which of the following methods for calculating profitability does/do NOT consider the time value of money?

Your answerSelect all correct options. You can choose more than one.

rate of return on investment

discounted cash flow rate of return

payback period

net present worth

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider two successive screen sizes in the Tyler standard screen scale, viz. 150 meshes per inch and 200 meshes per inch. Their linear sizes of the openings are L₁₅₀ and L₂₀₀, respectively. If the value of L₂₀₀ is 2.9 × 10⁻³ inch, then the value of L₁₅₀ (in inch) is ____ × 10⁻³ (rounded off to one decimal place).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE CH purpose:exam-prep PYQs

Question 21

Question 22

Question 23

Question 24

Question 25

Question 26

Question 27

Question 28

Question 29

Question 30