Heat Transfer Basics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Heat Transfer Basics, a fundamental topic in the field of Basic Chemical 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 Basics 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 Basics mcq questions that explore various aspects of Heat Transfer Basics problems. Each MCQ is crafted to challenge your understanding of Heat Transfer Basics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Heat Transfer Basics MCQs are your pathway to success in mastering this essential Basic Chemical 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 Basics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Heat Transfer Basics MCQs | Page 46 of 53

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Q451.
Kg of liquid evaporated per hour in an evaporator is defined as its

a.

capacity

b.

economy

c.

steam load

d.

none of these

Discuss
Answer: (a).capacity
Q452.
Pick out the correct statement.

a.

1 kcal/hr.m.°C is equal to 1 BTU/hr. ft.°F.

b.

In steady state heat conduction, the only property of the substance which determines the temperature distribution, is the thermal conductivity.

c.

In unsteady state heat conduction, heat flows in the direction of temperature rise.

d.

In heat transfer by forced convection, Grashoff number is very important.

Discuss
Answer: (b).In steady state heat conduction, the only property of the substance which determines the temperature distribution, is the thermal conductivity.
Q453.
Open pan evaporators are preferred to be used, when the solution to be concentrated is

a.

scaling

b.

highly viscous

c.

corrosive

d.

salty

Discuss
Answer: (b).highly viscous
Q454.
The maximum heat transfer co-efficient from steam heating will be attained when the steam is

a.

supersaturated

b.

saturated

c.

wet

d.

none of these

Discuss
Answer: (b).saturated
Q455.
Mode of heat transfer involved in the cooling of air cooled internal combustion engine is

a.

conduction

b.

natural convection

c.

forced convection

d.

none of these

Discuss
Answer: (b).natural convection
Q456.
Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that

a.

there is no internal heat generation.

b.

boundary surfaces are isothermal.

c.

material is anisotropic.

d.

constant temperature gradient exists.

Discuss
Answer: (c).material is anisotropic.
Q457.
The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is

a.

77.2

b.

71.2

c.

63.8

d.

48.7

Discuss
Answer: (d).48.7
Q458.
In a shell and tube heat exchanger, the shell side fluid velocity can not be changed by changing the

a.

tube layout

b.

tube diameter

c.

tube pitch

d.

no. of baffles

Discuss
Answer: (b).tube diameter
Q459.
To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is

a.

1-2 heat exchanger

b.

1-1 heat exchanger

c.

3-2 heat exchanger

d.

2-4 heat exchanger

Discuss
Answer: (b).1-1 heat exchanger
Q460.
In a gas-liquid shell and tube heat exchanger, the

a.

presence of a non-condensible gas decreases the condensing film co-efficient.

b.

gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature.

c.

gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes.

d.

all 'a', 'b' & 'c'

Discuss
Answer: (d).all 'a', 'b' & 'c'
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