Heat Transfer,Refrigeration and Air Conditioning MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Heat Transfer,Refrigeration and Air Conditioning, 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 Heat Transfer,Refrigeration and Air Conditioning 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 Heat Transfer,Refrigeration and Air Conditioning mcq questions that explore various aspects of Heat Transfer,Refrigeration and Air Conditioning problems. Each MCQ is crafted to challenge your understanding of Heat Transfer,Refrigeration and Air Conditioning 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 Heat Transfer,Refrigeration and Air Conditioning 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 Heat Transfer,Refrigeration and Air Conditioning. 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 Heat Transfer,Refrigeration and Air Conditioning knowledge to the test? Let's get started with our carefully curated MCQs!

Heat Transfer,Refrigeration and Air Conditioning MCQs | Page 25 of 40

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Discuss
Answer: (c).small displacements and high condensing pressures
Q242.
The boiling point of carbon dioxide is
Discuss
Answer: (d).-78.3°C
Q243.
The mass of water vapour present in __________ is called absolute humidity.
Discuss
Answer: (b).1 m³ of dry air
Discuss
Answer: (b).(Actual C.O.P.) /(Theoretical C.O.P.)
Q245.
The final relative humidity of the air during cooling and dehumidification is generally __________ than that of entering air.
Discuss
Answer: (b).higher
Q246.
The emissivity of a polished silver body is __________ as compared to black body.
Discuss
Answer: (c).very low
Q247.
In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.
Discuss
Answer: (b).False
Q248.
R-11 has the highest critical point temperature.
Discuss
Answer: (a).Correct
Q249.
The ratio of heat extracted in the refrigerator to the workdone on the refrigerant is called
Discuss
Answer: (a).coefficient of performance of refrigeration
Q250.
The boiling point of ammonia is
Discuss
Answer: (c).-33.3°C