MCQ Questions Mechanical Engineering Thermodynamics

Take a look at these MCQ Questions Thermodynamics for engineering interview questions and our tips on how to answer them. If you’re applying for an engineering internship, graduate scheme or entry-level job, you’ll face at least one interview as part of an engineering employer’s recruitment process. You may be interviewed by one or more members of the HR team, senior members of the engineering team you’d be joining or a mixture of both. In this section we will study MCQ Questions Mechanical Engineering Thermodynamics.

As well as questions about your reasons for applying to the role and the employer in question, engineering recruiters will be assessing your potential in the areas that is crucial to any engineering role: technical expertise. Engineers may be asked to perform feats of fantastic technical prowess, but it will be as as part of a Justice League rather than as a solo engineering super hero.

The interviewer is almost as nervous as the candidate in most interviews. You might wonder if you look confident enough, if you will hire the right person, or if you are asking the right engineering interview questions. The last question is arguably the most crucial part to worry about when you’re interviewing candidates.

MCQ Questions Mechanical Engineering Thermodynamics - Set - 4

Question 1:

The statement that molecular weights of all gases occupy the same volume is known as
(a) Avogadro’s hypothesis
(b) Dalton’s law
(c) Gas law
(d) Law of thermodynamics

Check Answer

Correct Answer – (A)

Question 2 :

Extensive property of a system is one whose value
(a) depends on the mass of the system like volume
(b) does not depend on the mass of the system, like temperature, pressure, etc.
(c) is not dependent on the path followed but on the state
(d) is dependent on the path followed and not on the state

Check Answer

Correct Answer – (A)

Question 3 :

Gases have
(a) only one value of specific heat
(b) two values of specific heat
(c) three values of specific heat
(d) no value of specific heat

Check Answer

Correct Answer – (B)

Question 4 :

An open system is one in which
(a) mass does not cross boundaries of the system, though energy may do so
(b) neither mass nor energy crosses the boundaries of the system
(c) both energy and mass cross the boundaries of the system
(d) mass crosses the boundary but not the energy

Check Answer

Correct Answer – (C)

Question 5 :

The same volume of all gases would represent their
(a) densities
(b) specific weights
(c) molecular weights
(d) gas characteristic constants

Check Answer

Correct Answer – (C)

MCQ Questions Mechanical Engineering Thermodynamics

Question 6:

Work done in a free expansion process is
(a) + ve
(b) -ve
(c) zero
(d) maximum

Check Answer

Correct Answer – (C)

Question 7:

According to Avogadro’s Hypothesis
(a) the molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature
(b) the sum of partial pressure of mixture of two gases is sum of the two
(c) product of the gas constant and the molecular weight of an ideal gas is constant
(d) gases have two values of specific heat

Check Answer

Correct Answer – (A)

Question 8:

According to which law, all perfect gases change in volume by l/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant
(a) Joule’s law
(b) Charles’ law
(c) Regnault’s law
(d) Gay-Lussac law

Check Answer

Correct Answer – (B)

Question 9:

Which law states that the specific heat of a gas remains constant at all temperatures and pressures
(a) Charles’ Law
(b) Joule’s Law
(c) Regnault’s Law
(d) Boyle’s Law

Check Answer

Correct Answer – (C)

Question 10:

Which law states that the internal energy of a gas is a function of temperature
(a) Charles’ law
(b) Joule’s law
(c) Regnault’s law
(d) Boyle’s law

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Thermodynamics

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