Steady State Conduction MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Steady State Conduction, 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 Steady State Conduction 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 Steady State Conduction mcq questions that explore various aspects of Steady State Conduction problems. Each MCQ is crafted to challenge your understanding of Steady State Conduction 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 Steady State Conduction 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 Steady State Conduction. 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 Steady State Conduction knowledge to the test? Let's get started with our carefully curated MCQs!

Steady State Conduction MCQs | Page 2 of 7

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Q11.
In case of homogeneous plane wall, there is a linear temperature distribution given by

a.

t = tโ‚ + (tโ‚‚-tโ‚) ฮด/x

b.

t = tโ‚‚ โ€“ (tโ‚‚-tโ‚) x/ ฮด

c.

t = tโ‚ + (tโ‚‚-tโ‚) x

d.

t = tโ‚ + (tโ‚‚-tโ‚) x/ ฮด

Discuss
Answer: (d).t = tโ‚ + (tโ‚‚-tโ‚) x/ ฮด
Q12.
The rate of convective heat transfer between a solid boundary and adjacent fluid is given by

a.

Q = h A (ts โ€“ tf)

b.

Q = h A

c.

Q = (ts โ€“ tf)

d.

Q = h (ts โ€“ tf)

Discuss
Answer: (a).Q = h A (ts โ€“ tf)
Q13.
A homogeneous wall of area A and thickness ฮด has left and right hand surface temperatures of 0 degree Celsius and 40 degree Celsius. Determine the temperature at the center of the wall

a.

10 degree Celsius

b.

20 degree Celsius

c.

30 degree Celsius

d.

40 degree Celsius

Discuss
Answer: (b).20 degree Celsius
Q14.
A rod of 3 cm diameter and 20 cm length is maintained at 100 degree Celsius at one end and 10 degree Celsius at the other end. These temperature conditions are attained when there is heat flow rate of 6 W. If cylindrical surface of the rod is completely insulated, determine the thermal conductivity of the rod material

a.

21.87 W/m degree

b.

20.87 W/m degree

c.

19.87 W/m degree

d.

18.87 W/m degree

Discuss
Answer: (d).18.87 W/m degree
Q15.
A composite wall generally consists of

a.

One homogenous layer

b.

Multiple heterogeneous layers

c.

One heterogeneous layer

d.

Multiple homogenous layers

Discuss
Answer: (b).Multiple heterogeneous layers
Q16.
Three metal walls of same thickness and cross sectional area have thermal conductivities k, 2k and 3k respectively. The temperature drop across the walls (for same heat transfer) will be in the ratio

a.

3:2:1

b.

1:1:1

c.

1:2:3

d.

Given data is insufficient

Discuss
Answer: (a).3:2:1
Q17.
A composite wall is made of two layers of thickness ฮดโ‚ and ฮดโ‚‚ having thermal conductivities k and 2k and equal surface area normal to the direction of heat flow. The outer surface of composite wall are at 100 degree Celsius and 200 degree Celsius. The minimum surface temperature at the junction is 150 degree Celsius. What will be the ratio of wall thickness?

a.

1:1

b.

2:1

c.

1:2

d.

2:3

Discuss
Answer: (c).1:2
Q18.
Let us say thermal conductivity of a wall is governed by the relation k = k0 (1 + ฮฑ t). In that case the temperature at the mid-plane of the heat conducting wall would be

a.

Av. of the temperature at the wall faces

b.

More than average of the temperature at the wall faces

c.

Less than average of the temperature at the wall faces

d.

Depends upon the temperature difference between the wall faces

Discuss
Answer: (b).More than average of the temperature at the wall faces
Q19.
Heat is transferred from a hot fluid to a cold one through a plane wall of thickness (ฮด), surface area (A) and thermal conductivity (k). The thermal resistance is

a.

1/A (1/hโ‚ + ฮด/k + 1/hโ‚‚)

b.

A (1/hโ‚ + ฮด/k + 1/hโ‚‚)

c.

1/A (hโ‚ + ฮด/k + hโ‚‚)

d.

A (1/hโ‚ + ฮด/k + 1/hโ‚‚)

Discuss
Answer: (a).1/A (1/hโ‚ + ฮด/k + 1/hโ‚‚)
Q20.
A pipe carrying steam at 215.75 degree Celsius enters a room and some heat is gained by surrounding at 27.95 degree Celsius. The major effect of heat loss to surroundings will be due to

a.

Conduction

b.

Convection

c.

Radiation

d.

Both conduction and convection

Discuss
Answer: (c).Radiation
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