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Full Mock Test & Solutions: GATE Engineering Sciences Mock Test - 2 (65 Questions)

You can boost your GATE Engineering Sciences 2026 exam preparation with this GATE Engineering Sciences Mock Test - 2 (available with detailed solutions).. This mock test has been designed with the analysis of important topics, recent trends of the exam, and previous year questions of the last 3-years. All the questions have been designed to mirror the official pattern of GATE Engineering Sciences 2026 exam, helping you build speed, accuracy as per the actual exam.

Mock Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 180 minutes
  • - Total Questions: 65
  • - Analysis: Detailed Solutions & Performance Insights
  • - Sections covered: General Aptitude, Engineering Mathematics (XE-A), Engineering Sciences (XE-B) & (XE-D)

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GATE Engineering Sciences Mock Test - 2 - Question 1

The village was situated in a lush area, _______ the mountains and the sea.

GATE Engineering Sciences Mock Test - 2 - Question 2

Given her belief in his honesty and reliability, she dismissed the idea that his assertion might have been ______________

Detailed Solution: Question 2

Because of the use of the conjunction 'since', meaning 'because', the second part of the sentence should corroborate what is stated in the first part. If she had believed that the person was candid (meaning frank) and trustworthy. She would obviously not have considered him to be insincere. So, (D) is the answer.

GATE Engineering Sciences Mock Test - 2 - Question 3

Which of the following choices represents the antonym of the word given below:

APPARENT

Detailed Solution: Question 3

Apparent mean visible, easy to see or understand while Ambiguous mean no clear stated or defined.

GATE Engineering Sciences Mock Test - 2 - Question 4

Numerous adults, regardless of their age, react to challenges by seeking guidance solely from their parents. Whether consciously or unconsciously, they revert to a psychological state of childhood reliance where the parent is regarded as the exclusive source of wisdom and solace. Conversely, adults who do not revert to a childlike mindset look for counsel during difficult times from other loved ones—such as a spouse or a close friend—who they view and associate with as equals. If all the statements above hold true, which of the following must also be accurate?

GATE Engineering Sciences Mock Test - 2 - Question 5

In a regular hexagon ABCDEF with each side measuring 6 cm, what is the area of triangle BDF?

Detailed Solution: Question 5

Subtract the area of 3 triangles DEF, BAF, BCD from area of hexagon.

Area of ΔDEF = ½ × 6 × 6 × sin 120° = 9√3 cm²
Area of all 3 triangles = 3 × 9√3 = 27√3 cm²
Area of regular hexagon = (3√3/2) × 6² = 54√3 cm²
Required area = 54√3 - 27√3 = 27√3 cm²

GATE Engineering Sciences Mock Test - 2 - Question 6

The probability density function of a random variable X is uniformly distributed between 0 and 10. What are the probability that X falls within the range of 2.5 to 7.5 and the mean square value of X?

Detailed Solution: Question 6

Mean square value, 

​​​​​​

GATE Engineering Sciences Mock Test - 2 - Question 7

Determine the value of , given that C is defined by the equation | z - 1 | = 1.

Detailed Solution: Question 7

z = π / 2 = 3.14 / 2 = 1.57 is a pole of order 2 that lies inside C.
, where f(x) = z cos z.

= 2πi (-π/2)
= -iπ²

GATE Engineering Sciences Mock Test - 2 - Question 8

Given that , what is the value of I?

Detailed Solution: Question 8

Solving I under the transformation,
 = v gives


= e16 - 1

*Multiple options can be correct
GATE Engineering Sciences Mock Test - 2 - Question 9

Analyze the differential equation shown below:

Which of the following statements is/are correct?

Detailed Solution: Question 9

Homogeneous differential equation:
If every term of a given differential equation contains either a dependent variable (or) its derivative, then the differential equation is called a homogeneous differential equation otherwise it is a non-homogeneous differential equation.
∴The given differential equation is a homogeneous differential equation.
The highest order derivative is second order and its power is 3
∴ The given differential equation is a second order and third degree differential equation.

Hence option b,c,d are correct.

GATE Engineering Sciences Mock Test - 2 - Question 10

An object moves along the line segment 'c' represented by the equations x = t, y = t2, and z = t3 from the point P(0, 0, 0) to the point Q(2, 4, 8), while subjected to the force . What is the work done by this force?

Detailed Solution: Question 10

Work done (W.D) = and 'c' is the curve x = t, y = t², z = t³.

Here, x = t gives t = 0, t = 2 for x = 0, x = 2.

Now,

GATE Engineering Sciences Mock Test - 2 - Question 11

Given that . Evaluate the following statements.
S1: A2 is invertible.
A2 - 5A 14I3 = 0.
Which of the following statements is true?

Detailed Solution: Question 11

Consider


|A| = 28, so |A²| = (28)² = 784.

Since A² is invertible, (A²)⁻¹ exists.
Consider 

A² - 5A - 14I3 = 0 confirms that A² satisfies the given property.

Hence, option (C) is true.

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 12

A container holds 30 tickets labeled with numbers from 1 to 30. Five tickets are randomly selected and organized in increasing order such that t1 < t2 < t3 < t4 < t5. What is the probability that t4 equals 25 (to two decimal places)?


Detailed Solution: Question 12

5 cards can be chosen from 30 cards in 30C5 ways.
∴ Total number of outcomes = 30C5
Assume t4 is 25. There are 24 cards preceding 25 t1, t2, t3 can be chosen from these 24 cards in 24C3 ways.
t5 should be greater than 25
Number of such cards = 5

GATE Engineering Sciences Mock Test - 2 - Question 13

Which of the following statements accurately describes fully developed pipe flow?

Detailed Solution: Question 13

For a fully developed pipe flow, inertia force is zero and the pressure gradient balances the wall shear stress only and has a constant value.

GATE Engineering Sciences Mock Test - 2 - Question 14

Consider the tetrahedral fluid element depicted with the standard nomenclature for the different traction components. What do you believe is the most suitable rationale for selecting this fluid element in the demonstration of Cauchy's theorem? 

Detailed Solution: Question 14

Out of the 4 faces one is arbitrarily oriented while rest 3 is the mutually orthogonal ones. Thus the traction on this 4th surface can be decomposed in 3 mutually perpendicular components directing along normal of the other 3 bounding surfaces.

GATE Engineering Sciences Mock Test - 2 - Question 15

A water tank is positioned on a cart with frictionless wheels as depicted in the figure. This cart is connected by a cable to a mass M = 10 kg. The coefficient of static friction between the mass and the ground is 0.55. When the gate that blocks the tank's exit is opened, the velocity of the jet is given by Vjet = √2gh, where h = 2 m represents the depth of the water. What is the minimum value of M, in kg, that is required to keep the tank stationary?

Detailed Solution: Question 15

Applying linear momentum equation
Rx = m(vf - vi)x
= ρAV(V cos θ - 0)
Rx = ρAV² cos θ ... ... (1)

Vjet = √2gh
= √2 × 9.81 × 2
Vjet = 6.26 m/s = V

∴ Rx = ρAV² cos θ
= 1000 × π/4 (0.05)² × (6.26)² × cos 60°

Rx = 38.5 N
∴ Rx = Mg.μ
⇒ M = Rx / g.μ
= 38.5 / (9.81 × 0.55)
= 7.15 kg

GATE Engineering Sciences Mock Test - 2 - Question 16

A sphere with a diameter of 3 cm and a relative density of 2.5 is connected to a string and hung from the ceiling of a wind tunnel. When an air stream moves past the sphere at a speed of 25 m/s, determine the angle of the string relative to the horizontal and the tension in the string.

Detailed Solution: Question 16

*Multiple options can be correct
GATE Engineering Sciences Mock Test - 2 - Question 17

A fluid with a viscosity of μ = 0.9 Ns/m² and a density of 1260 kg/m³ flows between two parallel plates of significant width, inclined at an angle of 45° to the horizontal, with a separation of 10 mm between them. The upper plate moves at a speed of 1.5 m/s in the opposite direction to the flow of the fluid, relative to the lower plate. Pressure gauges positioned 1 m apart vertically on the upper plate indicate pressures of 250 kPa and 80 kPa, respectively.

Detailed Solution: Question 17

Flow direction is determined from the direction of the pressure gradient.
At (1), P₁ + ρg z₁ = 250 + 9.81 × 1 × (1260 / 1000) = 262.36 kPa

At (2), P₂ + ρgz₂ = 80 KPa

If datum is taken at (2), so z = 0:

dp/dx = (262.36 - 80) / sin 45° = -182.36 / √2

⇒ P = (P + ρgz) = -128.95 KPa/m

It is known, for Couette flow:

u = (y/h)U - (1/2μ)(dp/dx)(hy - y²)

Given U = -1.5 m/s ; h = 0.01 m:

u = (-1.5y/0.01) + (128.95 × 10³) / (2 × 0.9)(0.01y - y²)

u = -1.50y + 716.4y - 71.64 × 10³y²

u = 566.4y - 71.64 × 10³y² -------- (a)

du/dy = 566.4 - 143.28 × 10³y --------- (1)

Shear stress distribution is:

τy = μ(du/dy)

⇒ τy = 0.9(566.4 - 143.28 × 10³y)

τy = 509.76 - 128.95 × 10³y

umax occurs where du/dy = 0:

From (1): 566.4 = 143.28 × 10³ × y

⇒ y = 0.395 × 10⁻² m

Using equation (a):

umax = 566.4 × 0.00395 - 71.64 × 10³ × (0.00395)²

umax = 3.36 m/s

Shear stress on upper plate is given by:

τy = μ(du/dy)

= 509.76 - 128.95 × 10³ × 0.395 × 10⁻²

τy = 780 KPa

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 18

At one side of a pond, the shoreline takes the shape of a half-body as illustrated in the figure. A vertical porous pipe is positioned close to the end of the pond to facilitate water extraction. When water is drawn at a rate of 0.06 m3/s through a pipe that is 3m in length, the velocity at point 'A' is __________ x 10-4 m/s


Detailed Solution: Question 18


For a flow rate of 0.06 m³/s in a 3m long pipe the source strength is 0.06/3 m²/s.

GATE Engineering Sciences Mock Test - 2 - Question 19

True stress σ is related with conventional stress σ₀ as:

Detailed Solution: Question 19

σ/σ₀ = 1 + ε

True stress σ = (1 + ε) σ₀

GATE Engineering Sciences Mock Test - 2 - Question 20

Two shafts made of different materials, both having the same length, are connected in series and subjected to a torque of 100 kNm. Given that the ratio of their diameters and their moduli of rigidity is 2:1 and 3:2 respectively, what is the ratio of their angles of twist?

Detailed Solution: Question 20

Angle of twist, θ = TL / GJ

θ₁ / θ₂ = G₂J₂ / G₁J₁ = (2 / 3) × (d₂ / d₁)⁴

θ₁ / θ₂ = 2 / 3 × (1 / 2)⁴ = 1 / 24

GATE Engineering Sciences Mock Test - 2 - Question 21

A weightless cantilever beam of length L is subjected to loads as depicted in the diagram. Throughout the full length of the beam, the material properties remain uniform, and the cross-section is rectangular with a constant width.

Considering the flexural critical aspects, the most cost-effective longitudinal profile of the beam to support the specified loads among the provided options is

Detailed Solution: Question 21

Moment about the point A,
MA  = -PL + PL
MA  = 0


Most economical longitudinal profile of the beam, maximum crosssection is given where maximum B.M occurs. So from the given option "B" is right option.

*Multiple options can be correct
GATE Engineering Sciences Mock Test - 2 - Question 22

Which of the following statements is/are TRUE with respect to Mohr's circle for stresses in the context of plane stress?

Detailed Solution: Question 22

Mohr’s circle for a plane state of stress is shown below:


 

From above, it can be said that:

  • Mohr’s circle is drawn for the state of stress at a point, not on the variation of stress with time.
  • Radius of Mohr’s circle,
    R = τmax =  (σ₁ - σ₂) / 2
  • Diameter of Mohr’s circle,
    D = 2R = σ₁ - σ₂

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 23

A conventional steel profile is utilized to bear the loads, with the measurements from the top and bottom of the profile to the centroidal axis illustrated below. Given that the maximum bending moment M = 13.61 kN m, calculate the bending stress at the maximum positive moment, expressed in ______MPa (Round your answer to one decimal place). Assume Iz = 16.7 X 106 mm4.


Detailed Solution: Question 23

Iz = 16.7 X 106 mm4 

= 133.9 MPa(T)

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 24

A cylindrical shell with hemispherical ends is subjected to an internal pressure of 30 MPa. If the circumferential strain remains constant at the junction, what should be the ratio of the thickness of a thin cylindrical shell to the thickness of its hemispherical ends? (Take, E = 210 GPa, μ = 0.23) (Round your answer to one decimal place)


Detailed Solution: Question 24

At junction, (Ec)cyinder = (Ec)sphere

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 25

The cantilever truss with pin joints is subjected to the loading configuration depicted in the accompanying diagram. What is the value of the force (in kN) acting in the member ED?


Detailed Solution: Question 25

F.B.D of joint C is shown below:

FBC sin 45 = 130 → (1)
FBC cos 45 = FCD → (2)

From (1) and (2), we get FCD = 130 kN.

F.B.D of joint D is shown below:


FCD = FED = 80 kN.

GATE Engineering Sciences Mock Test - 2 - Question 26

A rectangular beam is subjected to a shear force of F = 1 kN and a bending moment of −1 × 106 N·mm. The dimensions of the beam are B = 20 mm and D = 60 mm. Determine the stress tensor for an element positioned 15 mm below the top surface in MPa.

Detailed Solution: Question 26

M = -1 × 10⁶ N·mm (producing convexity)

I = second moment of area about the neutral plane
I = BD² / 12 = 20 × 60³ / 12 = 36 × 10⁴ mm⁴

y = 15 mm from the neutral layer

Bending stress, σxx:
σxx = My / I
= (1 × 10⁶ × 15) / (36 × 10⁴)
= 41.66 N/mm²

To determine shear stress at y = 15 mm from the neutral layer, τxy:
τxy = F × Ay / Ib

Where:
Area, A = 15 × 20 = 300 mm² (area of section above the layer under consideration)
y̅ = 22.5 mm (distance of CG of area A from the neutral layer)
b = breadth = 20 mm
I = 36 × 10⁴ mm⁴
F = 1 kN = 1,000 N
τxy = (1,000 × 300 × 22.5) / (36 × 10⁴ × 20)
= 0.9375 N/mm²

Stress tensor for this state of stress at a layer 15 mm below the top surface:

GATE Engineering Sciences Mock Test - 2 - Question 27

A slender steel bar with a rectangular cross-section measuring 6 mm × 4 mm is subjected to an axial compression from a load of 200 kN between two plates that maintain a fixed separation of 160 mm, as depicted in the illustration. The setup is established at a temperature of 24°C. What is the maximum temperature increase of the bar that would allow for a Factor of Safety (FOS) of 2 against buckling?

Given:
E = 200 GPa, α = 15 × 10-6/°C.

Detailed Solution: Question 27


Section, A = 4 × 6 mm²
Imin = (6 × 4³) / 12 = 32 mm⁴
E = 2,00,000 N/mm²

End conditions: both ends hinged.
L = 160 mm

Euler’s buckling load, Pe:
Pe = π²EI / L² (both ends hinged)
Pe = (π² × 2,00,000 × 32) / (160 × 160)
Pe = 2467.4 N

Factor of safety (FOS):
FOS = 2
Safe load = 2467.4 / 2 = 1233.7 N

Initial compressive load = 200 N
Balance load to be applied through expansion of the column (prevented by fixed ends):
1233.7 − 200 = 1033.7 N

Say temperature rise is ΔT.

Relation:
αΔT EA = 1033.7 N

Where A = area of the cross-section of the column:
15 × 10⁻⁶ × ΔT × 2,00,000 × 24 = 1033.7

Temperature rise, ΔT:
ΔT = 1033.7 / 72 = 14.36°C

Final temperature:
24 + 14.36 = 38.36°C.

GATE Engineering Sciences Mock Test - 2 - Question 28

The stresses generated at a critical location in a steel machine component (Syt = 500 MPa) are shown in the image below:

According to Rankine's theory, what is the factor of safety?

Detailed Solution: Question 28

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 29

A bearing pad made of elastomeric material, featuring two steel plates adhered to a chloroprene elastomer, experiences a shear force V during a static loading evaluation as depicted in the illustration. The pad's measurements are a = 150 mm, b = 250 mm, and the elastomer's thickness is t = 50 mm. When the applied force V reaches 12 kN, it is observed that the top plate has shifted laterally by 8 mm in relation to the bottom plate.

The shear modulus of elasticity G (in MPa) of the chloroprene is:


Detailed Solution: Question 29

Bearing pad subjected to shear
V = 12 kN, a = 150 mm, b = 250 mm
d = 8 mm, t = 50 mm

Shear stress τ_over = V / ab = (12 × 10^3) / ((150 × 10^-3) × (250 × 10^-3)) = 0.32 MPa

Shear strain γ_over = d / t = 8 / 50 = 0.16

Hence G = τ / γ = 0.32 / 0.16 = 2 MPa

*Answer can only contain numeric values
GATE Engineering Sciences Mock Test - 2 - Question 30

A circular cross-section bar features two different diameters, d and 2d, as illustrated in the figure.

Given that the length L is 600 mm, the diameter d is 40 mm, the modulus of elasticity E is 105 GPa, and the applied load P is 27 kN, what is the strain energy stored in the bar, expressed in J?


Detailed Solution: Question 30

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