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 24 of 40

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Q231.
The transfer of heat by molecular collision is smallest in
Discuss
Answer: (c).gases
Q232.
During dehumidification process, the relative humidity
Discuss
Answer: (c).decreases
Q233.
The space between the two walls of a thermos flask is evacuated because vacuum is a __________ conductor of heat.
Discuss
Answer: (b).bad
Q234.
The ratio of actual heat transfer to the maximum possible heat transfer is known as heat exchanger effectiveness.
Discuss
Answer: (a).Agree
Q235.
The mass of water vapour present in 1 kg of dry air, is called humidity ratio.
Discuss
Answer: (a).True
Discuss
Answer: (c).the positive work in isentropic expansion of liquid is very small
Q237.
The unit of overall coefficient of heat transfer is
Discuss
Answer: (a).W/m²K
Q238.
Most thermostatic expansion valves are set for a superheat of
Discuss
Answer: (a).5°C
Q239.
For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is
Discuss
Answer: (c).centrifugal
Discuss
Answer: (c).both (a) and ib)