MCQ Questions Mechanical Engineering Refrigeration and Air Conditioning

Take a look at these MCQ Questions Refrigeration and Air Conditioning 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 Refrigeration and Air Conditioning.

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 Refrigeration and Air Conditioning - Set - 1

Question 1:

In vapour compression cycle, the condition of refrigerant is saturated liquid
(a) after passing through the condenser
(b) before passing through the condenser
(c) after passing through the expansion throttle valve
(d) before entering the expansion valve

Check Answer

Correct Answer – (A)

Question 2 :

Clapeyron equation is a relation between
(a) temperature, pressure and enthalpy
(b) specific volume and enthalpy
(c) temperature and enthalpy
(d) temperature, pressure, specific volur and’enthalpy.

Check Answer

Correct Answer – (D)

Question 3 :

An important characteristic of absorption system of refrigeration is
(a) noisy operation
(b) quiet operation
(c) cooling below 0°C
(d) very little power consumption

Check Answer

Correct Answer – (B)

Question 4 :

Which of the following cycles uses air as the refrigerant
(a) Ericsson
(b) Stirling
(c) Carnot
(d) Bell-coleman

Check Answer

Correct Answer – (D)

Question 5 :

A standard ice point temperature corresponds to the temperature of
(a) water at 0°C
(b) ice at – 4°C
(c) solid and dry ice
(d) mixture of ice and water Under equilibrium conditions.

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering Refrigeration and Air Conditioning

Question 6:

Clapeyron equation is applicable for registration at
(a) saturation point of vapor
(b) saturation point of liquid
(c) sublimation temperature
(d) triple point

Check Answer

Correct Answer – (A)

Question 7:

The relative coefficient of performance is
(a) actual COP/fheoretical COP
(b) theoretical COP/actual COP
(c) actual COP x theoretical COP
(d) 1-actual COP x theoretical COP

Check Answer

Correct Answer – (A)

Question 8:

Ammonia-absorption refrigeration cycle requires
(a) very little work input
(b) maximum work input
(c) nearly same work input as for vapour compression cycle
(d) zero work input

Check Answer

Correct Answer – (A)

Question 9:

Vapor compression refrigeration is some what like
(a) Carnot cycle
(b) Rankine cycle
(c) reversed Camot cycle
(d) none of the above.

Check Answer

Correct Answer – (D)

Question 10:

Pick up the wrong statement. A refrigerant should have
(a) Tow specific heat of liquid
(b) high boiling point
(c) high latent heat of vaporisation
(d) higher critical temperature

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Refrigeration and Air Conditioning

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