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 28 of 40

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Q271.
A refrigerant with the highest critical pressure is
Discuss
Answer: (d).Ammonia
Q272.
In a shell and tube heat exchanger, baffles are provided on the shell side to
Discuss
Answer: (d).all of these
Q273.
The average value of thermal conductivity for water at 20° C saturate is about 0.51.
Discuss
Answer: (a).True
Q274.
In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in
Discuss
Answer: (a).condenser
Q275.
The central air conditioning system has __________ overall efficiency as compared to individual systems.
Discuss
Answer: (c).higher
Q276.
The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as
Discuss
Answer: (c).Kirchhoff's law
Q277.
An ordinary passenger aircraft requires a cooling system of capacity.
Discuss
Answer: (c).8 TR
Q278.
In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is
Discuss
Answer: (c).reversed Brayton cycle
Q279.
The thermal diffusivity for solids is generally less than those for liquids and gases.
Discuss
Answer: (b).False
Q280.
Conduction is the process of heat transfer from one particle of the body to another by the actual motion of the heated particles.
Discuss
Answer: (b).False