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 18 of 40

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Q171.
During dehumidification process, __________ remains constant.
Discuss
Answer: (c).dry bulb temperature
Discuss
Answer: (d).none of these
Q173.
The value of the wave length for maximum emissive power is given by
Discuss
Answer: (c).Wein's law
Q174.
Emissivity of a body will be equal to its absorptivity at all temperatures.
Discuss
Answer: (b).No
Q175.
Dehydration is the process of removing water vapour from the surrounding air.
Discuss
Answer: (a).True
Q176.
The cooling of air, without any change in its specific humidity, is known as sensible cooling.
Discuss
Answer: (a).Correct
Q177.
The capacity of the cooling tower and spray ponds __________ as the wet bulb temperature of air decreases.
Discuss
Answer: (a).increases
Q178.
A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called
Discuss
Answer: (c).saturated air
Q179.
The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called
Discuss
Answer: (c).Dalton's law of partial pressures
Q180.
The expansion valve in a refrigerator controls the flow of refrigerant.
Discuss
Answer: (a).Correct