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 6 of 40

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Discuss
Answer: (a).above which a liquid will remain a liquid
Discuss
Answer: (a).from one particle of the body to another without the actual motion of the particles
Discuss
Answer: (d).all of the above
Q54.
The sensible heat factor during the heating and humidification process is given by (where h1 = Enthalpy of air entering the heating coil, h2 = Enthalpy of air leaving the heating coil, and hA = Enthalpy of air at the end of humidification process)
Discuss
Answer: (d).(hA - h1)/ (h2 - h1)
Q55.
Sulphur dioxide is extremely toxic and non-flammable.
Discuss
Answer: (a).True
Q56.
The transfer of heat from one body to another takes place only when there is a temperature difference between the bodies.
Discuss
Answer: (a).Yes
Q57.
A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as
Discuss
Answer: (d).A.U/Cmin
Q58.
Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ฯ = Density of substance, S = Specific heat, and k = Thermal conductivity)
Discuss
Answer: (a).h = k/ ฯS
Discuss
Answer: (d).all of these
Q60.
The conditioned air supplied to the room must have the capacity to take up
Discuss
Answer: (c).both room sensible heat and latent heat loads