Transient Heat MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Transient Heat, a fundamental topic in the field of Heat Transfer. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Transient Heat 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 Transient Heat mcq questions that explore various aspects of Transient Heat problems. Each MCQ is crafted to challenge your understanding of Transient Heat principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Heat Transfer tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Transient Heat MCQs are your pathway to success in mastering this essential Heat Transfer topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Transient Heat. 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 Transient Heat knowledge to the test? Let's get started with our carefully curated MCQs!

Transient Heat MCQs | Page 4 of 8

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Q31.
What is the criterion for the applicability of lump system analysis?
Discuss
Answer: (c).Characteristics length
Q32.
What is the value of characteristics length for cylinder?
Discuss
Answer: (d).R/2
Q33.
During heat treatment, cylindrical pieces of 25 mm diameter, 30 mm height and at 30 degree Celsius are placed in a furnace at 750 degree Celsius with convective coefficient 80 W/m² degree. Find the value of biot number if thermal conductivity is 40 W/m degree
Discuss
Answer: (a).0.0082
Q34.
What is the value of characteristics length for sphere?
Discuss
Answer: (b).R/3
Q35.
What is the value of characteristics length for cube?
Discuss
Answer: (d).L/6
Q36.
β€œAn infinite solid is one which extends itself infinitely in all directions of space”. Identify the correct option
Discuss
Answer: (a).True
Q37.
The boundary conditions in case of transient heat conduction in infinite thick solids are

(i) t (x = 0) = t i
(ii) t (0, T) = t a for T greater than zero
(iii) t (infinity, T) = t i for T greater than zero
Identify the correct statements
Discuss
Answer: (d).1, 2 and 3
Q38.
The perturbation time varies as
Discuss
Answer: (a).d²/Ξ±
Q39.
The temperature perturbation at all the surface has penetrated to the depth (Where, T is time constant and Ξ± is thermal diffusivity.)
Discuss
Answer: (c).3.6 (Ξ± T)^1/2
Q40.
At the penetration depth d, there will be 1% perturbation at a time given by
Discuss
Answer: (d).d²/13 Ξ±
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