Explore topic-wise MCQs in Heat Transfer Operations.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Operations knowledge and support exam preparation. Choose a topic below to get started.

1.

If a = 1min, b = 1hr, c = 2hr, d = 3hr are the operation time of a particular evaporator, then which one of the following plot is correct?

A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11a.png"><img alt="a = 1min, b = 1hr, c = 2hr are the operation time of a particular evaporator - option a" class="alignnone size-full wp-image-248085" height="248" sizes="(max-width: 248px) 100vw, 248px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11a.png 248w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11a-150x150.png 150w" width="248"/></a>
B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11b.png"><img alt="a = 1min, b = 1hr, c = 2hr are the operation time of a particular evaporator - option b" class="alignnone size-full wp-image-248086" height="240" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11b.png" width="246"/></a>
C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11c.png"><img alt="a = 1min, b = 1hr, c = 2hr are the operation time of a particular evaporator - option c" class="alignnone size-full wp-image-248087" height="249" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11c.png" width="246"/></a>
D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11d.png"><img alt="a = 1min, b = 1hr, c = 2hr are the operation time of a particular evaporator - option d" class="alignnone size-full wp-image-248088" height="240" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11d.png" width="249"/></a>
Answer» C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11c.png"><img alt="a = 1min, b = 1hr, c = 2hr are the operation time of a particular evaporator - option c" class="alignnone size-full wp-image-248087" height="249" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q11c.png" width="246"/></a>
Discussion
2.

If the concentration of the solution increases, the Lines shift __________

A. To the left
B. To the right
C. Downwards
D. Upwards
Answer» E.
Discussion
3.

The slope of the Duhring s Plot is always ______

A. Greater than one
B. Greater than 2
C. Less than 1
D. Less than zero
Answer» B. Greater than 2
Discussion
4.

For Duhring s plot to be valid and to see its applicability to an operation, we must check if the solution in feed follows __________

A. Henry s Law
B. Roults law
C. Avogadro s Law
D. Gas Laws
Answer» C. Avogadro s Law
Discussion
5.

For Duhring s Plot to be valid, the range of boiling points must be relatively ________

A. Narrow
B. Large
C. Very big
D. Negligibly small
Answer» B. Large
Discussion
6.

What are the names of the axes in the plot by Duhring?

A. X Concentration of solution, Y- Boiling Point of solution
B. X Boiling Point of pure water, Y- Boiling Point of solution
C. X Boiling Point of Solution, Y- Concentration of solution
D. X Boiling Point of solution, Y- Boiling Point of pure water
Answer» C. X Boiling Point of Solution, Y- Concentration of solution
Discussion
7.

Identify the correct plot of Duhring s rule.

A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3a.png"><img alt="The correct plot of Duhring s rule - option a" class="alignnone size-full wp-image-248075" height="231" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3a.png" width="222"/></a>
B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3b.png"><img alt="The correct plot of Duhring s rule - option b" class="alignnone size-full wp-image-248076" height="229" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3b.png" width="241"/></a>
C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3c.png"><img alt="The correct plot of Duhring s rule - option c" class="alignnone size-full wp-image-248077" height="220" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3c.png" width="251"/></a>
D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3d.png"><img alt="The correct plot of Duhring s rule - option d" class="alignnone size-full wp-image-248078" height="231" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-duhrings-rule-q3d.png" width="239"/></a>
Answer» E.
Discussion
8.

The Duhring s rule states that: The boiling point of a given solution is a _____ function of the boiling point of water at the same temperature.

A. Linear
B. Parabolic
C. Exponential
D. Quadratic
Answer» B. Parabolic
Discussion
9.

The Duhring s rule is used to determine _______

A. Osmotic pressure
B. Surface tension
C. Boiling point elevation
D. Vapour pressure depression
Answer» D. Vapour pressure depression
Discussion