Civil Engineering Gate Yearwise 

Civil Engineering Gate 2023 Set-1 Questions with Answer

Ques 1 GATE 2023 SET-1

Creep of concrete under compression is defined as the _______.

A

increase in the magnitude of strain under constant stress

B

increase in the magnitude of stress under constant strain

C

decrease in the magnitude of strain under constant stress

D

decrease in the magnitude of stress under constant strain


(a) is the correct answer.

Ques 2 GATE 2023 SET-1

In cement concrete mix design, with the increase in water-cement ratio, which one of the following statements is TRUE?

A

Compressive strength decreases but workability increases

B

Compressive strength increases but workability decreases

C

Both compressive strength and workability decrease

D

Both compressive strength and workability increase


(a) is the correct answer.

Ques 3 GATE 2023 SET-1

If M is an arbitrary real n x n matrix, then which of the following matrices will have non-negative eigenvalues?

A

M2

B

MMT

C

MTM

D

(MT)2


(b, c) is the correct answer.

Ques 4 GATE 2023 SET-1

The following function is defined over the interval [-L, L]:
f(x) = px4 + qx5
. If it is expressed as a Fourier series,

, which options amongst the following are true?

A

an, n = 1, 2, · · ·, ∞ depend on p

B

an, n = 1, 2, · · ·, ∞ depend on q

C

bn, n = 1, 2, · · ·, ∞ depend on p

D

bn, n = 1, 2, · · ·, ∞ depend on q


(b, c) is the correct answer.

Ques 5 GATE 2023 SET-1

The probabilities of occurrences of two independent events A and B are 0.5 and 0.8, respectively. What is the probability of occurrence of at least A or B (rounded off to one decimal place)?


(0.9) is the correct answer.

Ques 6 GATE 2023 SET-1

In the differential equation dy⁄dx + αxy = 0, a is a positive constant. If y = 1.0 at x = 0.0, and y = 0.8 at x = 1.0, the value of a is _______. (rounded off to three decimal places)


(0.446) is the correct answer.

Ques 7 GATE 2023 SET-1

For the matrix

which of the following statements is/are TRUE?

A

The eigenvalues of [𝐴]T are same as the eigenvalues of [𝐴]

B

The eigenvalues of [𝐴]-1 are the reciprocals of the eigenvalues of [𝐴]

C

The eigenvectors of [𝐴]T are same as the eigenvectors of [𝐴]

D

The eigenvectors of [𝐴]-1 are same as the eigenvectors of [𝐴]


(a) is the correct answer.

Ques 8 GATE 2023 SET-1

For the integral

which of the following statements is TRUE?

A

I = 0

B

I = 2

C

I = -2

D

The integral does not converge


(d) is the correct answer.

Ques 9 GATE 2023 SET-1

Which one of the following statements is TRUE for Greenhouse Gas (GHG) in the atmosphere?

A

GHG absorbs the incoming short wavelength solar radiation to the earth surface, and allows the long wavelength radiation coming from the earth surface to pass through

B

GHG allows the incoming long wavelength solar radiation to pass through to the earth surface, and absorbs the short wavelength radiation coming from the earth surface

C

GHG allows the incoming long wavelength solar radiation to pass through to the earth surface, and allows the short wavelength radiation coming from the earth surface to pass through

D

GHG allows the incoming short wavelength solar radiation to pass through to the earth surface, and absorbs the long wavelength radiation coming from the earth surface


(d) is the correct answer.

Ques 10 GATE 2023 SET-1

Identify the waterborne diseases caused by viral pathogens:

A

Acute anterior poliomyelitis

B

Cholera

C

Infectious hepatitis

D

Typhoid fever


(a, c) is the correct answer.

Ques 11 GATE 2023 SET-1

Which of the following statements is/are TRUE for the Refuse-Derived Fuel (RDF) in the context of Municipal Solid Waste (MSW) management?

A

Higher Heating Value (HHV) of the unprocessed MSW is higher than the HHV of RDF processed from the same MSW

B

RDF can be made in the powdered form

C

Inorganic fraction of MSW is mostly converted to RDF

D

RDF cannot be used in conjunction with oil


(a, b) is the correct answer.

Ques 12 GATE 2023 SET-1

In the following table, identify the correct set of associations between the entries in Column-1 and Column-2.

A

P-II, Q-I, S-III

B

Q-III, R-II, S-IV

C

P-IV, R-I, S-II

D

P-III, Q-I, R-IV


(a) is the correct answer.

Ques 13 GATE 2023 SET-1

Which of the following statements is/are TRUE in relation to the Maximum Mixing Depth (or Height) '${D_{max}}^{\prime}$ in the atmosphere?

(A) $D_{max}$ is always equal to the height of the layer of unstable air
(B) Ventilation coefficient depends on $D_{max}$
(C) A smaller $D_{max}$ will have a smaller air pollution potential if other meteorological conditions remain same
(D) Vertical dispersion of pollutants occurs up to $D_{max}$

A

$D_{max}$ is always equal to the height of the layer of unstable air

B

Ventilation coefficient depends on $D_{max}$

C

A smaller $D_{max}$ will have a smaller air pollution potential if other meteorological conditions remain same

D

Vertical dispersion of pollutants occurs up to $D_{max}$


(a, b) is the correct answer.

Unique Visitor Count

Total Unique Visitors

Loading......

Question Options

Contributed by: