Mechanical Engineering Gate 2022 Set-1 Questions with Answer

Ques 40 Gate 2022 Set-1


The average of the monthly salaries of M, N and S is β‚Ή 4000. The average of the monthly salaries of N, S and P is β‚Ή 5000. The monthly salary of P is β‚Ή 6000.What is the monthly salary of M as a percentage of the monthly salary of P?

A

50

B

75%

C

100%

D

125%


(a) is the correct answer.

Ques 41 Gate 2022 Set-1


Solution of βˆ‡2𝑇 = 0 in a square domain (0 < π‘₯ < 1 and 0 < 𝑦 < 1) with boundary conditions:

𝑇(π‘₯, 0) = π‘₯; 𝑇(0, 𝑦) = 𝑦; 𝑇(π‘₯, 1) = 1 + π‘₯; 𝑇(1, 𝑦) = 1 + 𝑦

is

A

T(x, y) = x βˆ’ xy+ y

B

T(x,y)=x+y

C

T(x,y)=-x+y

D

T(x,y)=x+xy+y


(b) is the correct answer.

Ques 42 Gate 2022 Set-1


The Fourier series expansion of x3 in the interval βˆ’1 ≀ π‘₯ < 1 with periodic continuation has

A

only sine terms

B

only cosine terms

C

both sine and cosine terms

D

only sine terms and a non-zero constant


(a) is the correct answer.

Ques 43 GATE 2022 SET-1


The limit has a finite value for a real Ξ±. The value of Ξ± and the corresponding limit p are?

A

Ξ± = βˆ’3Ο€, p = Ο€

B

Ξ± = βˆ’2Ο€, p = 2Ο€

C

Ξ± = Ο€, p = Ο€

D

Ξ± = 2Ο€, p = 3Ο€


(b) is the correct answer.

Ques 44 GATE 2022 SET-1


Given a function πœ‘ = 1/2(x2 + y2 + z2) in three-dimensional Cartesian space, the value of the surface integral

where 𝑆 is the surface of a sphere of unit radius and 𝐧' is the outward unit normal vector on 𝑆, is

A

4Ο€

B

3Ο€

C

4Ο€/3

D

0


(a) is the correct answer.

Ques 45 GATE 2022 SET-1


If is a symmetric matrix, the value of k is?

A

8

B

5

C

βˆ’0.4

D

(1 + √1561)/12


(b) is the correct answer.

Ques 46 GATE 2022 SET-1


The value of the integral

evaluated over a counter-clockwise circular contour in the complex plane enclosing only the pole z = i, where i is the imaginary unit, is?

A

(-1 + i)Ο€

B

(1 + i)Ο€

C

2(1 - i)Ο€

D

(2 + i)Ο€


(c) is the correct answer.

Ques 47 GATE 2022 SET-1


The system of linear equations in real (x, y) given by

involves a real parameter 𝛼 and has infinitely many non-trivial solutions for special value(s) of 𝛼. Which one or more among the following options is/are non-trivial solution(s) of (π‘₯,𝑦) for such special value(s) of 𝛼?

A

x = 2, y = -2

B

x = -1, y = 4

C

x = 1, y = 1

D

x = 4, y = -2


(a, b) is the correct answer.

Ques 48 GATE 2022 SET-1


Let a random variable X follow Poisson distribution such that

The value of Prob(X = 3) is __________ (round off to 2 decimal places).


(0.18) is the correct answer.

Ques 49 GATE 2022 SET-1


Consider two vectors
A⃗ = 5i + 7j + 2k
B⃗ = 3i - j + 6k.
Magnitude of the component of π‘Žβƒ— orthogonal to 𝑏⃗ in the plane containing the vectors π‘Žβƒ— and 𝑏⃗ is __________ (round off to 2 decimal places).


(5.92) is the correct answer.

Ques 50 GATE 2022 SET-1


In a linear programming problem, if a resource is not fully utilized, the shadow price of that resource is?

A

Positive

B

Negative

C

Zero

D

Infinity


(c) is the correct answer.

Ques 51 GATE 2022 SET-1


Which one of the following is NOT a form of inventory?

A

Raw materials

B

Work-in-process materials

C

Finished goods

D

CNC Milling Machines


(d) is the correct answer.

Ques 52 GATE 2022 SET-1


Assuming the material considered in each statement is homogeneous, isotropic, linear elastic, and the deformations are in the elastic range, which one or more of the following statement(s) is/are TRUE?

A

A body subjected to hydrostatic pressure has no shear stress.

B

If a long solid steel rod is subjected to tensile load, then its volume increases.

C

Maximum shear stress theory is suitable for failure analysis of brittle materials.

D

If a portion of a beam has zero shear force, then the corresponding portion of the elastic curve of the beam is always straight.


(a, b, c) is the correct answer.

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