Whether you’re a college student aspiring to work in top tech companies or a recent graduate preparing for placement interviews, mastering Data Structures and Algorithms (DSA) is non-negotiable. In this…

List of Common Mechanical Engineering Multiple Choice Questions (MCQ) and Answers
For campus placement, competitive exams or job interviews, mechanical engineering freshers should be well versed with several questions related to the important concepts of mechanical engineering. We have prepared a list of competitive MCQ for mechanical engineering students that will help you to cover important topics such as thermodynamics, machine design, engineering mechanics, strength of materials, and many more.
Start your preparation now with this list of questions:
Multiple Choice Questions & Answers (MCQ) for Mechanical Engineering
Q1: Thermal equilibrium indicates that the flow of steam is
A. polytropic
B. hyperbolic
C. isothermal
D. isentropic
Answer: D
Q2: If a square lamina is freely suspended from a corner, what is the angle made by its side with the horizontal?
A. 180o
B. 90o
C. 45o
D. 0o
Answer: C
Q3: If a steam pressure of 10 kg/cm2 needs to be measured, what should be the range of pressure gauge?
A. 0 to 20 kg kg/cm2
B. 10 kg/cm2 to + 10 kg kg/cm2
C. 0 to 100 kg kg/cm2
D. 5 to 11 kg kg/cm2
Answer: A
Q4: What is the common limitation of string law?
A. Valid when more than three particles are connected by a string
B. Direction of motion cannot be specified
C. Both a. and b
D. None of the above
Answer: B
Q5: S.I unit of work done is
A. Newton Meter
B. Joule
C. Both a. and b
D. None of the above
Answer: C
Q6: What is meant by application factor?
A. Ratio of maximum load and average load
B. Ratio of maximum torque and average torque
C. Both a. and b
D. None of the above
Answer: C
Q7: The value of 1 mm of Hg is equal to
A. 133.3 N/ m2
B. 1.333 N/ m2
C. 1333 N/ m2
D. 13.33 N/ m2
Answer: A
Q8: What is the formula if slenderness ratio Le / K <X, where X is equal to √ ( 2π 2E / Syc )?
A. J. B. Johnson formula
B. Euler’s formula
C. Rankine formula
D. None of the above
Answer: A
Q9: The material that has minimum gage factor is
A. Manganin
B. Monel
C. Constantan
D. None of these
Answer: A
Q10: The approximate nominal diameter for coarse threads is
A. d = 0.5 dc
B. d = 1.136 dc
C. d = 1.19 dc
D. d = 1.59 dc
Answer: C
Q 11: Formula to calculate shear strength of butt weld is
A. P = τ h2 l
B. P = τ h l
C. P = τ h l2
D. None of these
Answer: B
Q 12: Which of the following is correct?
A. Absolute pressure = Gauge pressure – Atmospheric pressure
B. Absolute pressure = Atmospheric pressure + Gauge pressure
C. Gauge pressure = Absolute pressure + Atmospheric pressure
D. Atmospheric pressure = Absolute pressure + Gauge pressure
Answer: B
Q 13: Which of the following gas has a minimum molecular mass?
A. Hydrogen
B. Nitrogen
C. Methane
D. Oxygen
Answer: A
Q 15: As per Boyle’s law (where p = Absolute pressure, v = Volume, and T = Absolute temperature), for a perfect gas
A. p/T = constant, if v is kept constant
B. p v = constant, if T is kept constant
C.T/p = constant, if v is kept constant
D. v/T = constant, if p is kept constant
Answer: B
Q 16: Transmission of heat by molecular collision is known as
A. Transmission
B. Conduction
C. Radiation
D. Convection
Answer: D
Q 17: One of the following cannot be the unit of thermal conductivity
A. cal/c,-sec?K
B. Watt / m2 K
C. BTU/ft-h?F
D. CHU/ft-hr?C
Answer: B
Q 18: What is the surface temperature of sun?
A. 6000 K
B. 2000 K
C. Infinitely large
D. 20000 K
Answer: D
Q 19: The power factor of a 3 phase induction motor near full load is expected to be around
A. 0.8 lagging
B. 0.1 lagging
C. 0.8 leading
D. 0.5 leading
Answer: A
Q 20. What is the number of elastic constants for a completely anisotropic elastic material that follows Hooke’s law?
A. 3
B. 25
C. 21
D. 4
Answer: C
Hope the above list of multiple choice questions (MCQ) for mechanical engineering students will help you prepare for your job interview.
Also Read: Common Mechanical Engineering Interview Questions to Crack Your Interview
Watch this space for more series of questions for your campus placement and job interviews.
All the best!
Latest Posts
How to Become an Investment Banker in India
Investment banking stands as one of the most prestigious and lucrative career paths in the financial services industry. For ambitious college students and recent graduates in India, understanding the pathway…
Latest Cabin Crew Interview Questions and Answers for 2025
The aviation industry in India has witnessed remarkable growth, with domestic air traffic increasing by over 300% in the past decade. This expansion has created numerous opportunities for aspiring cabin…
How to Become a Psychologist: Complete Roadmap for Students
Psychology has gained immense importance over the past decade, especially in India, where awareness of mental health is growing rapidly. With more people seeking emotional, behavioral, and psychological support, the…
How to Write a Job Application Letter – Tips, Format, and Examples
When it comes to applying for your first job, making a great first impression is crucial. As a recent graduate, you might feel a little intimidated by the idea of…
Popular Posts
65 Important Logical Reasoning Questions & Answers – For Freshers
Are you looking out for some quick help for your placement interviews preparation? We got your back! This article is a complete guide for you with some of the latest…
Best CV Formats for Freshers: Simple, Professional & Job-Winning Templates
Creating an effective CV (Curriculum Vitae) is the first step towards landing your dream job or internship as a fresh graduate. Your CV is your initial introduction to potential employers…
Top 21 Highest Paying Jobs in India For Freshers
The Indian job market is evolving rapidly, with new opportunities emerging across various sectors. As a student or fresher, identifying the best career in India that aligns with your interests…
25+ Best Online Courses for Graduates in 2025 [Free & Certified]
In today’s competitive job market, earning a degree is just the beginning. To truly stand out, college students and freshers must constantly upskill, stay updated with industry trends, and gain…
Google Internship 2025 for Freshers: All You Need to Know
In the competitive landscape of technology careers, a Google internship stands out as a golden opportunity for aspiring professionals. Whether a college student or a recent graduate, securing an internship…