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 34 of 40

Q331.
The coefficient of performance of vapour compression refrigeration system is quite __________ as compared to air refrigeration system.
Discuss
Answer: (b).high
Q332.
In order to collect liquid refrigerant and to prevent it from going to a __________ , a device known as accumulator is used at the suction of compressor.
Discuss
Answer: (a).compressor
Q333.
Which of the following refrigerant has the lowest boiling point?
Discuss
Answer: (b).Carbon dioxide
Q334.
During sensible cooling of air, the relative humidity increases.
Discuss
Answer: (a).Yes
Q335.
Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat)
Discuss
Answer: (a).S.H/(S.H + L.H)
Q336.
Stefan-Boltzmann law is applicable for heat transfer by convection.
Discuss
Answer: (b).Disagree
Q337.
The most commonly used method for the design of duct size is the
Discuss
Answer: (c).static regain method
Discuss
Answer: (a).both the fluids at inlet are in their hottest state
Q339.
The rate of heat flow through a body is . The term x/kA is known as
Discuss
Answer: (b).thermal resistance
Q340.
In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about
Discuss
Answer: (b).1.25