MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
The feed temperature during the constant rate period _________ with time. |
| A. | Increases |
| B. | Remains same |
| C. | Decreases |
| D. | Oscillates |
| Answer» C. Decreases | |
| 2. |
The critical moisture content is the point in which the _____________ |
| A. | Constant rate period ends |
| B. | Constant rate period starts |
| C. | Falling rate period ends |
| D. | Initial heating period starts |
| Answer» B. Constant rate period starts | |
| 3. |
What happens in the falling rate period? |
| A. | The free moisture available on the surface shrinks to the core |
| B. | The water in the substance is available as free moisture |
| C. | The water in the substance has completely diminished |
| D. | The water in the substance is blocked by a membrane formed |
| Answer» B. The water in the substance is available as free moisture | |
| 4. |
Which region represents that state when the water in the substance is available as free moisture? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9a.png"><img alt="State of water in the substance is available as free moisture - option a" class="alignnone size-full wp-image-248403" height="234" sizes="(max-width: 339px) 100vw, 339px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9a.png 339w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9a-300x207.png 300w" width="339"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9b.png"><img alt="State of water in the substance is available as free moisture - option b" class="alignnone size-full wp-image-248404" height="237" sizes="(max-width: 341px) 100vw, 341px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9b.png 341w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9b-300x209.png 300w" width="341"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9c.png"><img alt="State of water in the substance is available as free moisture - option c" class="alignnone size-full wp-image-248405" height="234" sizes="(max-width: 345px) 100vw, 345px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9c.png 345w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9c-300x203.png 300w" width="345"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9d.png"><img alt="State of water in the substance is available as free moisture - option d" class="alignnone size-full wp-image-248406" height="249" sizes="(max-width: 337px) 100vw, 337px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9d.png 337w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q9d-300x222.png 300w" width="337"/></a> |
| Answer» E. | |
| 5. |
In which one of the following regions the moisture is available as free moisture on the surface hence evaporation rates are high? |
| A. | Constant rate period |
| B. | Falling rate period |
| C. | Rising rate period |
| D. | Critical rate period |
| Answer» B. Falling rate period | |
| 6. |
Which region is known as the Initial period of the drying curve? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7a.png"><img alt="The Initial period of the drying curve - option a" class="alignnone size-full wp-image-248398" height="239" sizes="(max-width: 344px) 100vw, 344px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7a.png 344w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7a-300x208.png 300w" width="344"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b.png"><img alt="The Initial period of the drying curve - option b" class="alignnone size-full wp-image-248399" height="248" sizes="(max-width: 339px) 100vw, 339px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b.png 339w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b-300x219.png 300w" width="339"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7c.png"><img alt="The Initial period of the drying curve - option c" class="alignnone size-full wp-image-248400" height="237" sizes="(max-width: 344px) 100vw, 344px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7c.png 344w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7c-300x207.png 300w" width="344"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7d.png"><img alt="The Initial period of the drying curve - option d" class="alignnone size-full wp-image-248401" height="233" sizes="(max-width: 335px) 100vw, 335px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7d.png 335w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7d-300x209.png 300w" width="335"/></a> |
| Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b.png"><img alt="The Initial period of the drying curve - option b" class="alignnone size-full wp-image-248399" height="248" sizes="(max-width: 339px) 100vw, 339px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b.png 339w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q7b-300x219.png 300w" width="339"/></a> | |
| 7. |
What do we understand by the initial heating period of the drying curve? |
| A. | Preheating with the feed with large evaporation rate |
| B. | Preheating the feed but evaporation is negligible |
| C. | Temperature rises almost linearly and evaporation too increases linearly |
| D. | Temperature falls almost linearly and evaporation too decreases linearly |
| Answer» D. Temperature falls almost linearly and evaporation too decreases linearly | |
| 8. |
Which one of the following is the correct temperature time plot of continuous steady state drying? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5a.png"><img alt="The temperature time plot of continuous steady state drying - option a" class="alignnone size-full wp-image-248393" height="235" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5a.png" width="286"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5b.png"><img alt="The temperature time plot of continuous steady state drying - option b" class="alignnone size-full wp-image-248394" height="231" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5b.png" width="281"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5c.png"><img alt="The temperature time plot of continuous steady state drying - option c" class="alignnone size-full wp-image-248395" height="235" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5c.png" width="280"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5d.png"><img alt="The temperature time plot of continuous steady state drying - option d" class="alignnone size-full wp-image-248396" height="234" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5d.png" width="284"/></a> |
| Answer» D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5d.png"><img alt="The temperature time plot of continuous steady state drying - option d" class="alignnone size-full wp-image-248396" height="234" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q5d.png" width="284"/></a> | |
| 9. |
Which one of the following is the correct temperature time plot of batch drying? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4a.png"><img alt="The following is the correct temperature time plot of batch drying - option a" class="alignnone size-full wp-image-248389" height="235" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4a.png" width="288"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4b.png"><img alt="The following is the correct temperature time plot of batch drying - option b" class="alignnone size-full wp-image-248390" height="238" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4b.png" width="291"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4c.png"><img alt="The following is the correct temperature time plot of batch drying - option c" class="alignnone size-full wp-image-248391" height="235" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4c.png" width="285"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4d.png"><img alt="The following is the correct temperature time plot of batch drying - option d" class="alignnone size-full wp-image-248392" height="236" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4d.png" width="289"/></a> |
| Answer» D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4d.png"><img alt="The following is the correct temperature time plot of batch drying - option d" class="alignnone size-full wp-image-248392" height="236" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q4d.png" width="289"/></a> | |
| 10. |
That point when the humidity decreases linearly with the drying conditions is known as __________ |
| A. | Constant drying period |
| B. | Falling-rate period |
| C. | Heating region |
| D. | Critical region |
| Answer» C. Heating region | |
| 11. |
Which one of the following correctly represents the drying curve? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1a.png"><img alt="The following correctly represents the drying curve - option a" class="alignnone size-full wp-image-248384" height="225" sizes="(max-width: 336px) 100vw, 336px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1a.png 336w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1a-300x201.png 300w" width="336"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1b.png"><img alt="The following correctly represents the drying curve - option b" class="alignnone size-full wp-image-248385" height="231" sizes="(max-width: 335px) 100vw, 335px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1b.png 335w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1b-300x207.png 300w" width="335"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c.png"><img alt="The following correctly represents the drying curve - option c" class="alignnone size-full wp-image-248386" height="242" sizes="(max-width: 343px) 100vw, 343px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c.png 343w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c-300x212.png 300w" width="343"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1d.png"><img alt="The following correctly represents the drying curve - option d" class="alignnone size-full wp-image-248387" height="244" sizes="(max-width: 333px) 100vw, 333px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1d.png 333w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1d-300x220.png 300w" width="333"/></a> |
| Answer» C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c.png"><img alt="The following correctly represents the drying curve - option c" class="alignnone size-full wp-image-248386" height="242" sizes="(max-width: 343px) 100vw, 343px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c.png 343w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-profile-drying-curves-q1c-300x212.png 300w" width="343"/></a> | |