Civil Engineering Gate 2025 Set-2 Questions with Answer

Ques 1 GATE 2025 SET-2

Consider the following statements (P) and (Q):
(P): Fly ash and ground granulated blast furnace slag can be used as mineral admixtures in concrete.
(Q): As per IS 456:2000, the minimum moist curing period becomes higher when a mineral admixture is added to concrete.
Identify the CORRECT option from choices given below.

Both (P) and (Q) are TRUE.

(P) is TRUE and (Q) is FALSE.

(P) is FALSE and (Q) is TRUE.

Both (P) and (Q) are FALSE.

(a) is the correct answer.

Ques 2 GATE 2025 SET-2

In the context of construction materials, which of the following statements is/are CORRECT?

If the characteristic strength is defined as that value below which not more than 50% results are expected to fall, the target mean strength in mix design will be taken same as the characteristic strength irrespective of the degree of quality control expected at the site.

Ten percent fines value is a non-dimensional quantity.

The stress-strain curve of concrete for 1-day duration of loading is associated with a smaller secant modulus of elasticity compared to the stress-strain curve of the same concrete for 10-minutes duration of loading.

The increase of carbon in steel usually leads to an increase in its 0.2% proof stress.

(d) is the correct answer.

Ques 3 GATE 2025 SET-2

For the matrix [A] given below, the transpose is

(a) is the correct answer.

Ques 4 GATE 2025 SET-2

Integration of ln(x) with x i.e., ∫ ln(x)dx =

x.ln(x)-x+Constant

x-ln(x)+Constant

x.ln(x)+x+Constant

ln(x)-x+Constant

(a) is the correct answer.

Ques 5 GATE 2025 SET-2

Consider a velocity vector, &vec;V in (x, y, z) coordinates given below. Pick one or more CORRECT statements(s) from the choices given below.
&vec;V=u&vec;x+v&vec;y

z-component of Curl of velocity; ∇×&vec;V=(&partial;v/&partial;x-&partial;u/&partial;y)&vec;z

z-component of Curl of velocity; ∇×&vec;V=(&partial;u/&partial;x-&partial;v/&partial;y)&vec;z

Divergence of velocity; ∇⋅&vec;V=(&partial;u/&partial;x+&partial;v/&partial;y)

Divergence of velocity; ∇⋅&vec;V=(&partial;u/&partial;y+&partial;v/&partial;x)

(a) is the correct answer.

Ques 6 GATE 2025 SET-2

Given that A and B are not null sets, which of the following statements regarding probability is/are CORRECT?

P(A∩B)=PP(B). if A and B are mutually exclusive.

Conditional probability, P(A|B)=1 if B⊂A

P(A∪B)=P(A)+P(B), if A and B are mutually exclusive.

P(A∩B)=0 if A and B are independent.

Ques 7 GATE 2025 SET-2

The "order" of the following ordinary differential equation is
d³y/dx³ + (d²y/dx²)⁶ + (dy/dx)⁴ + y = 0

(3) is the correct answer.

Ques 8 GATE 2025 SET-2

Pick the CORRECT solution for the following differential equation
dy/dx = e^x-y

y=ln(e^x+Constant)

ln(y)=x+Constant

ln(y)=ln(e^x)+Constant

y=x+Constant

(a) is the correct answer.

Ques 9 GATE 2025 SET-2

Consider the function given below and pick one or more CORRECT statement(s) from the following choices.
f(x)=x³-(15/2)x²+18x+20

f(x) has a local minimum at x=3.

f(x) has a local maximum at x=3.

f(x) has a local minimum at x = 2.

f(x) has a local maximum at x=2.

(a) is the correct answer.

Ques 10 GATE 2025 SET-2

Pick the CORRECT eigen value(s) of the matrix [A] from the following choices.

-2

-10

(a) is the correct answer.

Ques 11 GATE 2025 SET-2

Consider a discrete random variable X whose probabilities are given below. The standard deviation of the random variable is ______ (round off to one decimal place).

X_i	1	2	4	8
P(X=x_i)	0.3	0.1	0.3	0.3

(2.4) is the correct answer.

Ques 12 GATE 2025 SET-2

The bacteria mainly responsible for crown corrosion in a sewer is

Methanogenic bacteria

Denitrifying bacteria

Sulphur reducing bacteria

Pseudomonas bacteria

Ques 13 GATE 2025 SET-2

Identify the treatment technology/technologies NOT recommended for highly biodegradable organic solid wastes.

Biohydrogenation

Anaerobic digestion

Composting

Open dumping

(a) is the correct answer.

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