Thermodynamics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Thermodynamics, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Thermodynamics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Thermodynamics mcq questions that explore various aspects of Thermodynamics problems. Each MCQ is crafted to challenge your understanding of Thermodynamics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Thermodynamics MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Thermodynamics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Thermodynamics knowledge to the test? Let's get started with our carefully curated MCQs!

Thermodynamics MCQs | Page 3 of 31

Discuss
Answer: (a).reversible cycles
Q22.
When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
Discuss
Answer: (a).zero
Q23.
A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
Discuss
Answer: (c).thermodynamic cycle
Q24.
An isothermal process is governed by
Discuss
Answer: (a).Boyle's law
Q25.
The efficiency of Diesel cycle approaches to Otto cycle efficiency when
Discuss
Answer: (c).cut-off is zero
Q26.
The entropy __________ in an irreversible cyclic process.
Discuss
Answer: (c).increases
Q27.
The atomic mass of oxygen is
Discuss
Answer: (c).16
Q28.
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
Discuss
Answer: (c).greater than one
Q29.
According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.
Discuss
Answer: (b).directly proportional to
Q30.
The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.
Discuss
Answer: (a).Agree
Page 3 of 31