Civil Engineering GATE 2025 Set-2 Questions with Answer

Ques 1 Concrete Technology

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.

Ques 2 Concrete Technology

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.

Ques 3 Engineering Mathematics

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

Ques 4 Engineering Mathematics

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

Ques 5 Engineering Mathematics

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)

Ques 6 Engineering Mathematics

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 Engineering Mathematics

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

Ques 8 Engineering Mathematics

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

Ques 9 Engineering Mathematics

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.

Ques 10 Engineering Mathematics

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

-2

-10

Ques 11 Engineering Mathematics

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

Ques 12 Environmental Engineering

The bacteria mainly responsible for crown corrosion in a sewer is

Methanogenic bacteria

Denitrifying bacteria

Sulphur reducing bacteria

Pseudomonas bacteria

Ques 13 Environmental Engineering

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

Biohydrogenation

Anaerobic digestion

Composting

Open dumping

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Civil Engineering GATE 2025 Set-2 Questions with Answer