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 - 4

Question 1:

In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is
(a) less than 2 kg
(b) more than or equal to 3.65 kg
(c) more than 10 kg
(d) there is no such consideration

Check Answer

Correct Answer – (B)

Question 2 :

The higher temperature in vapour compression cycle occurs at
(a) receiver
(b) expansion valve
(c) evaporator
(d) compressor discharge.

Check Answer

Correct Answer – (D)

Question 3 :

For better COP of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be
(a) small
(b) high
(c) euqal
(d) anything

Check Answer

Correct Answer – (A)

Question 4 :

In a vapor compression cycle, the refrigerant immediately after expansion valve is
(a) liquid
(b) sub-cooled liquid
(c) saturated liquid
(d) wet vapour

Check Answer

Correct Answer – (D)

Question 5 :

Air refrigeration operates on
(a) Carnot cycle
(b) Reversed Carnot cycle
(c) Rankine cycle
(d) Brayton cycle.

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering Refrigeration and Air Conditioning

Question 6:

Highest temperature encountered in refrigeration cycle should be
(a) near critical temperature of refrigerant
(b) above critical temperature
(c) at critica. temperature
(d) much below critical temperature

Check Answer

Correct Answer – (D)

Question 7:

The bank of tubes at the back of domestic refrigerator are
(a) condenser tubes
(b) evaporator tubes
(c) refrigerant cooling tubes
(d) capillary tubes

Check Answer

Correct Answer – (A)

Question 8:

The vapor pressure of refrigerant should be
(a) lower than atmospheric pressure
(b) higher than atmospheric pressure
(c) equal to atmospheric pressure
(d) could be anything

Check Answer

Correct Answer – (B)

Question 9:

Air refrigeration cycle is used in
(a) domestic refrigerators
(b) commercial refrigerators
(c) air conditioning
(d) gas liquefaction

Check Answer

Correct Answer – (D)

Question 10:

Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
(a) electrically operated throttling valve
(b) manually operated valve
(c) thermostatic valve
(d) capillary tube

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering Refrigeration and Air Conditioning

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