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Mechanical Engineering Exam  >  Mechanical Engineering Test  >  BDL MT Mechanical Mock Test Series 2026  >  BDL MT Mechanical Mock Test - 1 - Mechanical Engineering MCQ

BDL MT Mechanical Mock Test - 1 Free Online Test 2026


Full Mock Test & Solutions: BDL MT Mechanical Mock Test - 1 (150 Questions)

You can boost your Mechanical Engineering 2026 exam preparation with this BDL MT Mechanical Mock Test - 1 (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: 120 minutes
  • - Total Questions: 150
  • - Analysis: Detailed Solutions & Performance Insights
  • - Sections covered: Concerned Subject, General Aptitude

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BDL MT Mechanical Mock Test - 1 - Question 1
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The forces, which meet at a point are known as

Detailed Solution: Question 1

A concurrent coplanar force system is a system of two or more than two force lines of action are intersecting at a common point.

BDL MT Mechanical Mock Test - 1 - Question 2
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If the principal stresses on a plane stress problem are s1 = 100 MPa and s2 = 40 MPa, then themagnitude of shear stress (in MPa) will be

Detailed Solution: Question 2

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BDL MT Mechanical Mock Test - 1 - Question 3
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The first law of thermodynamics deals with ___.

Detailed Solution: Question 3

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.

BDL MT Mechanical Mock Test - 1 - Question 4
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Tyre gauge is used for the measurement of

Detailed Solution: Question 4

A tire-pressure gauge, or tyre-pressure gauge, is a pressure gauge used to measure the pressure of tires on a vehicle. Since tires are rated for specific loads at a certain pressure, it is important to keep the pressure of the tire at the optimal amount.

BDL MT Mechanical Mock Test - 1 - Question 5
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Which iron ore is mainly used in the production of cast iron?

Detailed Solution: Question 5

Hematite

Hematite and magnetite are by far the most common types of ore. Pure magnetite contains 72.4 percent iron, hematite 69.9 percent, limonite 59.8 percent, and siderite 48.2 percent, but since these minerals never occur alone, the metal content of real ores is lower.

BDL MT Mechanical Mock Test - 1 - Question 6
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One newton is equal to —

Detailed Solution: Question 6

It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second squared. One newton is equal to a force of 100,000 dynes in the centimetre-gram-second (CGS) system, or a force of about 0.2248 pound in the foot-pound-second (English, or customary) system.

BDL MT Mechanical Mock Test - 1 - Question 7
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What is the number of instantaneous centres of rotation for a 6-link mechanism?

Detailed Solution: Question 7

The number of instantaneous centres in a constrained kinematic chain is equal to the number of possible combinations of two links.

The number of instantaneous centres:

where n is the number of links.

BDL MT Mechanical Mock Test - 1 - Question 8
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Which of the following property of air does not increase with the rise in temperature?

Detailed Solution: Question 8

v=μ/ρ

⇒ μ for air increases with the rise in temperature, and ρ decreases with the rise in temperature, so kinematic viscosity increases.

α=K/ρCp

⇒ For air, K increases with the rise in temperature, and ρ decreases with the rise in temperature. So the value of thermal diffusivity increases.

So out of given values, the value of specific gravity does not change increase with the temperature.

BDL MT Mechanical Mock Test - 1 - Question 9
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In the 3-2-1 principle of fixture design, 3 refers to the number of

Detailed Solution: Question 9

This is the principle to locate the workpiece firmly so that the required operations like drilling, reaming, etc. can be done.

According to the principle, 3 pins are used in primary datum, 2 pins are used on secondary datum, which is perpendicular to 1st, and 1 in tertiary datum, which arrests 9 degrees of freedom.

BDL MT Mechanical Mock Test - 1 - Question 10
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What is the maximum possible theoretical efficiency of a heat engine operating with a hot reservoir of gases at 2127°C, when the cooling water available is at 27°C?

Detailed Solution: Question 10

Concept

Efficiency of heat engine (ɳ) = (TH – TL) / TH = Wout/ Qin

TH = Temperature of the hot reservoir

TL = Temperature of the cold reservoir

Qin = Heat input to the engine

Wout = Work output from the engine

Calculation:

TH = 2127°C = 2127 + 273 = 2400 K

TL = 27°C = 27 + 273 = 300 K

Efficiency will be maximum when the engine is reversible.

BDL MT Mechanical Mock Test - 1 - Question 11
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Match List-I (SI Engine Operating Mode) with List –II (Appromimate A/F Ratio) and select the correct answer using the code given below the lists

List - I (SI Engine Operational Mode)

A. Idling

B. Cruising

C. Maximum Power

D. Cold starting

List-II (A/F Ratio Supplied by the Carburetor)

1. 3

2. 10

3. 13

4. 16

5. 20

Detailed Solution: Question 11

The air fuel ratio for different operations is given below

Idling – 10

Cruising – 16

Maximum Power – 13

Cold Starting – 3

BDL MT Mechanical Mock Test - 1 - Question 12
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A seamless pipe of diameter d m is to carry fluid under a pressure of P kN/cm2. The necessary
thickness t of metal in cm, if the maximum stress is not to exceedσ kN/cm2 is

Detailed Solution: Question 12

BDL MT Mechanical Mock Test - 1 - Question 13
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A carnot cycle consists of:

Detailed Solution: Question 13

The Carnot cycle consists of the following four processes: A reversible isothermal gas expansion process. In this process, the ideal gas in the system absorbs qin​ amount heat from a heat source at a high-temperature Th​, expands, and does work on surroundings.

BDL MT Mechanical Mock Test - 1 - Question 14
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Polytropic index n is given

Detailed Solution: Question 14

Taking log

log(p2/p1)/log(v1/v2)

BDL MT Mechanical Mock Test - 1 - Question 15
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Which solution is used in an ice plant?

Detailed Solution: Question 15

There are three main circuits of working medium in ice plant

Refrigeration circuit: Ammonia as working medium (primary refrigerant) produces the cold by changing its phase at different locations.

Cooling water circuit: Cooling water as a working medium to remove the heat of the condenser.

Brine circuit: Brine solution as a working medium which transfers the cold from ammonia to water-filled cans where ice is to be formed.

BDL MT Mechanical Mock Test - 1 - Question 16
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Strain energy stored in a body of volume V subjected to uniform stress σ is:

Detailed Solution: Question 16

When a body is loaded within the elastic limit, it changes its dimensions, and on the removal of the load, it regains its original dimensions. So long as it remains loaded, it has stored energy in itself. On removing the load, the energy stored is given off as in the case of a spring. This energy, which is absorbed in a body when strained within the elastic limit, is known as strain energy.

The strain energy stored in a body due to external loading within the elastic limit is known as resilience. The maximum energy that can be stored in a body up to the elastic limit is called proof resilience.

The proof of resilience per unit volume of a material is known as the modulus of resilience.

Strain energy stored in a body due to tensile or compressive load or resilience:

U = σ2V/2E

Modulus of resilience:

U = σ2/2E

BDL MT Mechanical Mock Test - 1 - Question 17
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Directions: In each question below is given one/more statements that are followed by two assumptions numbered I and II. Consider the statement and decide which of the given assumptions is implicit.

Statement:

Folk music is disappearing from the country.

Assumptions:

I. Folk music is sung only amongst communities and villages.

II. Performing artists sing folk songs in various programs.

Detailed Solution: Question 17

Answer: option 3. Neither assumption I nor II is implicit.

Both the assumptions are not implicit as the statement does not give any information about the people who indulge in folk music. Hence, neither assumption I nor II is implicit.

BDL MT Mechanical Mock Test - 1 - Question 18
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Select the word-pair in which the two words are related in the same way as are the two words in the following word-pair.

Butterflies: Lepidopterist

Detailed Solution: Question 18

One who studies or collects butterflies is called Lepidopterist.

Similarly, a Deltiologist is one who studies on postcards.

Hence, the correct answer is Postcards: Deltiologist.

BDL MT Mechanical Mock Test - 1 - Question 19
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Study the following information to answer the given questions.

In a certain code, 'a friend of mine' is written as '4916', 'mine lots of metal' is written as ' 3109', and 'a piece of metal is written as'7163'.

'873'would mean

Detailed Solution: Question 19

a friend of mine = 4916

mine lots of metal = 3109

a piece of metal = 7163

From eq (i) and (ii), of mine = 1, 9

From eq (ii) and (iii), of metal = 1, 3

So, of = 1 metal = 3, mine = 9. Similarly, you can find

the code of all by comparing equations.

a=6 lots= 0

piece = 7 friend= 4

We know the code of 7 and 3, i.e., piece and metal. Once again, you have to make an intelligent guess with the help of answer options. The answers option will be (5).

BDL MT Mechanical Mock Test - 1 - Question 20
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Study the following graph and answer the questions that follow.

No. of candidates admitted in two different Institution(In thousands)

In which year the total number of candidates admitted in both the institutions together was the second lowest?

Detailed Solution: Question 20

In 2003 = 3.5 + 4.0 = 7.5

In 2002 = 2 + 3.5 = 5.5

BDL MT Mechanical Mock Test - 1 - Question 21
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The height of a square base right prism is 15 cm. If the total surface area of the prism is 608 cm2, then what will be the volume of the prism?

Detailed Solution: Question 21

Let side of square base be ‘a’.

Now, total surface area = Perimeter of square base × Height

+ 2 × Area of square base.

⇒ 608 = 4a × 15 + 2 × a2 ⇒ a2 + 30a –304 = 0 ⇒ a = 8

∴Volume of prism = Area of base × Height

= a2 × 15 = 8 × 8 × 15 = 960 cm3

BDL MT Mechanical Mock Test - 1 - Question 22
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Directions

Each question is followed by 2 statements. Go through these questions and answer the questions as per the instructions : choose your answer as: (A) If the question can be answered by using only statement (I), but not by using statement (II) alone. (B) If the question can be answered by using only statement (II), but not by using statement (I) alone. (C) If the question can be answered by using both the statements together, but cannot be answered by using either statement alone. (D) If the question cannot be answered by using both the statements together.

What is the number?

A. The product of two digits of a number is 27.

B. The sum of the two digits is 12. The ratio of the ten's digit to the unit digit is 3:1.

Detailed Solution: Question 22

Let the ten's and unit’s digit be x and y respectively.

From A, xy = 27

From B, x + y = 12 and Now,

3y + y=12

4y=12 =>y=3

x=3y=9

Number = 93

Thus, B alone gives the answer and A alone does not give the answer

BDL MT Mechanical Mock Test - 1 - Question 23
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Solve the following expression: 452 - 35 * 68 - 58 + 60% of 730.

Detailed Solution: Question 23

= 452 - 35 * 68 - 58 + 60% of 730

= 2025 - 2380 - 58 + 438

= 2463 - 2438

= 25

= 52

BDL MT Mechanical Mock Test - 1 - Question 24
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The value of tan 31° tan 33° ... tan 59° is equal to:

Detailed Solution: Question 24

tan 31°. tan 32°. tan 33° .... tan 59°

= tan 31°.tan 32°. tan 33° ... tan 57°. tan 58°. tan 59°

= tan 31º. tan 32°. tan 33° ... cot 33°. cot 32°. cot 31° = 1

[tan (90°-θ) = cotθ and tanθ cotθ =1]

BDL MT Mechanical Mock Test - 1 - Question 25
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Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. If there is no error choose option 4 ‘No error’ as the answer.

The standard of living of its (1)/ citizens are largely dependent on(2)/ the level of education of the citizens. (3)/ No error (4)

Detailed Solution: Question 25

Identify the grammatical error in the sentence:

The sentence states that the standard of living of its citizens is largely dependent on the level of education.

  • The phrase the standard of living refers to a singular concept.
  • Therefore, it should be followed by the singular verb is instead of are.
  • Thus, the correct form of the sentence should read: The standard of living of its citizens is largely dependent on the level of education of the citizens.

In summary, the error lies in the second part of the sentence, where are should be changed to is.

BDL MT Mechanical Mock Test - 1 - Question 26
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In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

Q. Outside of Pune / nobody even know / him or his family.

Detailed Solution: Question 26

The error lies in part 2.
The sentence uses the noun 'nobody', which takes a singular verb. So, the verb must be 'knows' and not 'know'.
Therefore, the correct answer is option 2.

BDL MT Mechanical Mock Test - 1 - Question 27
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Improve the bracketed part of the sentence

Q. The promises he had made (seem) forgotten and yet, they continued to affect him.

Detailed Solution: Question 27

The second option is the answer. The given sentence appears in past tense with the use of- 'made' and 'continued'- and so the improvement is to change- seem- to 'seemed'. This brings the sentence to its right meaning and forms proper grammatical sense. Thus, seemed is the right word for improvement in the given sentence.
Corrected sentence- The promises he had made seemed forgotten and yet, they continued to affect him.

BDL MT Mechanical Mock Test - 1 - Question 28
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In the following sentence, a part of the sentence is underlined. Below are given alternatives to the underlined part, which may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose the alternative that indicates No improvement needed.

Q. All person in the world must pay attention to this fact.

Detailed Solution: Question 28

All is a determiner pronoun that is used to denote a group of people. Since the sentence uses the word 'person' after the word all, it cannot be correct. There must be a word that can be applicable to the singular person which is given by 'every', which represents each single quantity of something. Therefore, the correct answer is option 1.

BDL MT Mechanical Mock Test - 1 - Question 29
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In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'. 

Q. I am disappointed to (1)/ see that neither of the (2)/ websites have any offers. (3)/ No error (4)

Detailed Solution: Question 29

Neither and either are singular and require singular verbs even though they seem to be referring, in a sense, to two things. Thus the plural verb 'have' is incorrect and must be replaced with the singular verb 'has. The error lies in part 3 of the sentence.

BDL MT Mechanical Mock Test - 1 - Question 30
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For the following sentence, select the alternative corresponding to the incorrect part. If there is no error, select the option corresponding to ‘No error’:

Q. (A) Myopia is a condition / (B) in which one loses / (C) the ability to seeing far-off objects. / (D) No error

Detailed Solution: Question 30

In part (C) of the sentence, the verb following the phrase ‘ability to’ has been used incorrectly. In the correct form, it is followed by the 1st form of the verb, which in this case should have been ‘see’ and NOT ‘seeing’. So, the correct form of the verb 'see' can rectify the sentence.

The correct sentence would be: Myopia is a condition in which one loses the ability to see far-off objects. 

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About this Mechanical Engineering Mock Test

This mock test contains 150 questions designed to replicate the pattern, difficulty level and time pressure of the actual Mechanical Engineering exam. It is part of BDL MT Mechanical Mock Test Series 2026 on EduRev, covering all the topics that are being asked as per the current Mechanical Engineering syllabus. Attempting this test under timed conditions will help you assess your exam readiness, identify subject-wise weak areas, and improve your speed and accuracy before the actual exam.

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If you found this BDL MT Mechanical Mock Test - 1 helpful, you can further enhance your Mechanical Engineering preparation with complete mock tests, previous year questions & practice tests available in BDL MT Mechanical Mock Test Series 2026 course on EduRev. The course offers:
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