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GATE Mechanical (ME) Mock Test Engineering - 8 Free Online Test 2026


Full Mock Test & Solutions: GATE Mock Test Mechanical Engineering (ME) - 8 (65 Questions)

You can boost your Mechanical Engineering 2026 exam preparation with this GATE Mock Test Mechanical Engineering (ME) - 8 (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 Mechanical Engineering 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, Mechanical Engineering

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GATE Mock Test Mechanical Engineering (ME) - 8 - Question 1

Fill in the blank with the correct word.

Since she believed him to be both candid and trustworthy, she refused to consider the possibility that his statement had been______.

Detailed Solution: Question 1

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 believe that the person was candid (meaning frank) and trustworthy. she would obviously not have considered him to be insincere.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 2

Find the sentence that has a mistake in grammar or usage. If you find no mistake, mark choice 4.

Detailed Solution: Question 2

The correct verb form is 'has broken'.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 3

In a press meet on the recent scam, the minister said, "The buck stops here". What did the minister convey by the statement?

Detailed Solution: Question 3

If you say 'The buck stops here' or 'the buck stops with me' you mean that you have to take responsibility for something and will not try to pass the responsibility onto someone else. Therefore the right option is' C'. He will assume final responsibility.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 4

Directions: The following verbal analogy has two parts. One part is complete while the other one is incomplete. Complete the portion that is incomplete by selecting the right choice from the given options.

Son : Nuclear : : ______ : Extended

Detailed Solution: Question 4

A son is part of a nuclear family, and a cousin is part of an extended family.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 5

The variable cost (V) of manufacturing a product varies according to the equation V = 4q, where q is the quantity produced. The fixed cost (F) of production of same product reduces with q according to the equation F = 100/q. How many units should be produced to minimise the total cost (V + F)?

Detailed Solution: Question 5

To minimise the total cost (V + F), let f(q) = (V + F).
f(q) = 4q + 100/q
f'(q) = 4 - 100/q2
f'(q) = 0
Solving, q = 5, -5
Since q can not be negative, so q = 5 is the required answer to minimize total cost.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 6

Directions: Choose the sentence that best combines the given sentences.

The federal government has diversity of jobs and geographic locations. The federal government offers flexibility in job opportunities that is unmatched in the private sector.

Detailed Solution: Question 6

The subordinator 'because' in choice 3 establishes the logical causal relationship between the subordinate and main clause. Choices 1 and 2 do not make sense. Choice 4 has faulty construction.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 7

Choose the most appropriate alternative from the options given below to complete the following sentence.

Suresh's dog is the one ________ was hurt in the stampede.

Detailed Solution: Question 7

With indefinite pronouns, 'that' is used. Here, 'one' is the indefinite pronoun.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 8

The first term of an AP is equal to the sum of the common ratio of a GP and the first term of the GP, which is equal to the common difference of the AP. If the sum of the first two terms of the GP is equal to the sum of the first 2 terms of the AP, then the ratio of the first term of the GP to the first term of the AP is

Detailed Solution: Question 8

We know that the three term of the AP are α - β, α, α + β and those of the GP are a, ar, ar2.

So, according to the quesition,

a(1 + r) = 2 (r + a) + r + a

a(1+ r) = 3 (r + a)

a + r = a(1 + r)/3

Now, the required ratio is = a/(a + r) = (a × 3)/(a (1 + r)) = 3/(1 + r)

This is independent of the first term of the GP.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 9

12 men can finish a project in 20 days. 18 women can finish the same project in 16 days and 24 children can finish it in 18 days. 8 Women and 16 children worked for 9 days and then left. In how many days will 10 men complete the remaining project?

Detailed Solution: Question 9

Let a man, women and child per day work M. W and C respectively.

Given (12x20) M = (18x16) W = (24x18) C

5M= 6W=9C

Work done by 8 women and 16 children in 9 days = (8W + 16C) 9

= 140 m

Remaining work = 12 M x20-140M = 100 M

∴ 10 Men can complete it in = 100/10 = 10 days

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 10

Ramu is planning to get wireless internet service at his house. Two service providers A and B offer different rates as shown in the table below.

If Ramu plans on using 25 hours of internet service per month, which of the following statements is true?

Detailed Solution: Question 10

When used for 25 hours per month, provider A will cost $20 + 7.5 * $1 (for the hourly charge above the free hours).

This equals $27.50.

Provider B will cost $20 + 5 * $1.50 (for the hourly charge above the free hours).

This equals $20 + $7.50 = $27.50 as well.

*Multiple options can be correct
GATE Mock Test Mechanical Engineering (ME) - 8 - Question 11

A jet is flying at a speed of 900 km/hr. If the ambient pressure is 0.75 bar and temperature is —30°C. TakeStagnation y = 1.4 and R= 287 kJ/kgK, then

Detailed Solution: Question 11

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 12

The Expression curl (grad f), where f is a scalar function, is

Detailed Solution: Question 12

*Answer can only contain numeric values
GATE Mock Test Mechanical Engineering (ME) - 8 - Question 13

A vapour compression refrigerator cycle works between temperature limits of 25°C and —10°C. The vapour at the end of isentropic compression is dry. Assuming there is no sub cooling.

If mass flow rate of refrigerant is 5 kg/min, then the capacity of refrigerator (in kW) is —---------------------.


Detailed Solution: Question 13

Using Clapeyron equation for calculating entropy change sf92 during evaporation

Entropy at the state 2

Similarly

For isentropic compression

Capacity of Refrigerator RC = m’r * (h1 - h4)

RC = 84.88Kw

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 14

Detailed Solution: Question 14

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 15

A rod of circular cross section is subjected to an alternating tensile force, varying from 20 kN to 70 kN S„ = 1000 MPa; Sy = 550 MPa; FOS = 2.0 Neglect stress concentration effect and other correction factors The diameter of the rod according to Gerber's theory (in mm) is

Detailed Solution: Question 15

Using Gerber’s Theory

*Answer can only contain numeric values
GATE Mock Test Mechanical Engineering (ME) - 8 - Question 16

The state of plane stress in a plate of 100 mm thickness is given as

= 100 N/mm2, = 200 N/mm2

Young's modulus = 300 N/mm2

Poisson's ratio = 0.3

The stress developed in the direction of thickness is(Answer up to the nearest integer)


Detailed Solution: Question 16

If the stress state at a material particle is such that the only non-zero stress components act in one plane only, the particle is said to be in plane stress.

No stress will be developed in the direction of thickness i.e. in the z direction, as no stress exists there.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 17

Choose the correct meaning of NC program block `N10 GO1 X 100 M03 S500 F50' can be expressed by

Detailed Solution: Question 17

GO1 is for "Linear interpolation of 100 units in x-direction" M03 is for "spindle on in clockwise direction" S500 is for "spindle speed 500 rpm" F50 is for "feed 50 mm/min"

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 18

The amplitude versus time curve of a damped-free vibration is shown in the below figure. Curve labelled 'A' is

Detailed Solution: Question 18

The damping factor such as the vibration motion is allowed. However, the amplitude of motion reduce with time in an exponential manner.

*Answer can only contain numeric values
GATE Mock Test Mechanical Engineering (ME) - 8 - Question 19

In a hole and shaft combination of 25 mm nominal size H7 hole limits are +0.021 mm and —0.000 mm E8 shaft limits are —0.040 mm and —0.073 mm The allowance (in microns) during the assembly is


Detailed Solution: Question 19

Allowance = difference between maximum material limits = Lhole — Hshaft = 25.00 — 24.96 = 0.040 mm = 40 microns

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 20

A rotating shaft carries a flywheel which overhangs on the bearing as a cantilever. If this flywheel weight is reduced to half of its original weight, the whirling speed will

Detailed Solution: Question 20

*Answer can only contain numeric values
GATE Mock Test Mechanical Engineering (ME) - 8 - Question 21

In electro chemical machining of pure iron a material removal rate of 600 mm3/min is required. If atomic weight of the work material is 56, valency of the work material is 2, Faraday's constant is 96500 coulombs and density of work material is 7.89 gm/cc, then the current required (in A) is


Detailed Solution: Question 21

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 22

Kinematic similarly between the model and prototype is the similarity of:

Detailed Solution: Question 22

Kinematic similarity: The motions of two systems are kinematically similar if homogeneous particles lie at same points at same time. In a specific sense, the velocities at corresponding points are in the same direction (i.e. same streamline patterns) and are related in magnitude by a constant scale factor. Hence, kinematic similarly between the model and prototype is the similarity of discharge.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 23

Time estimates of an activity in a PERT network are to = 9 days; tp = 21 days; t,„ = 15 days. The approximate probability of completion of this activity in 14 days is

Detailed Solution: Question 23

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 24

The value of friction factor is misjudged by +25% in using Darcy - Weisbach equation. The resulting error in the discharge will be

Detailed Solution: Question 24

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 25

A ball is thrown vertically upwards with a velocity of 10 m/s from a height of 40 m from the ground. If the air resistance is neglected and g = 9.8 m/s2, then the time taken by the ball to reach the ground (in s) is

Detailed Solution: Question 25

Given S = -40m , u = 10m/s

S= ut - ½ gt2

⇒ -40 = 10t - 9.8/2 t2

⇒ t = 4.09s

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 26

Match List I (Ingredients) with List II (Welding functions) and select the correct answer using the codes given below the lists:

Detailed Solution: Question 26

The coating on electrodes comprises of following ingredients

(i) Cellulose:

It provides a reducing gas shield and increases arc voltage.

(ii) Potassium Aluminium Silicate:

It stabilises the arc and gives strength to the coating.

(iii) Ferro manganese and Ferro silicon:

These are used to deoxidise the weld metal.

(iv) Silica:

Fluxes and Slag Formers ingredients are used primarily to give body to the slag and impart such properties as slag viscosity, surface tension, and melting point.Silica and magnetite are materials of this type.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 27

If A = , B = , C = , where i= √1, then which one of the following is correct?

Detailed Solution: Question 27

*Answer can only contain numeric values
GATE Mock Test Mechanical Engineering (ME) - 8 - Question 28

A filled welded joint is subjected to transverse loading F as shown in the figure. Both legs of the fillets are of 10 mm size and the weld length is 30 mm. If the allowance shear stress of the weld is 94 MPa, considering the minimum throat area of the weld, the maximum allowable transverse load (in kN) is (Answer up to two decimal places)


Detailed Solution: Question 28

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 29

Three group of children respectively 3 girls and 1 boy, 2 girls and 2 boys, 1 girl and 3 boys. One child is selected at random from each group. The probability of selecting 1 girl and 2 boys is —--------.

Detailed Solution: Question 29

There are 3 ways of selecting 1 girl and 2 boys.

GATE Mock Test Mechanical Engineering (ME) - 8 - Question 30

Number of components (C), phases (P) and degree of freedom (F) are related by Gibbs phase rule as

Detailed Solution: Question 30

Gibbs phase rule

P + F = C + 2

P + F - C = 2

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