MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
To cope with the change in vapour pressure with increasing concentration and considering the sensitivity of the solution to high temperatures, which one of the following step can be undertaken? |
| A. | Increase the feed temperature to its boiling point |
| B. | Use superheated steam at the temperature of maximum boiling point |
| C. | Increase pressure |
| D. | Reduce pressure |
| Answer» E. | |
| 2. |
The vapour pressure of the solution ________ when the concentration of solutes increases. |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | Becomes zero |
| Answer» C. Remains same | |
| 3. |
Which one the following properties of fluid in not a colligative property? |
| A. | Osmotic pressure |
| B. | Surface tension |
| C. | Boiling point elevation |
| D. | Vapour pressure depression |
| Answer» C. Boiling point elevation | |
| 4. |
To help coping with boiling point elevation in evaporators, which of the following can be done? |
| A. | Increase the feed temperature to its boiling point |
| B. | Use superheated steam at the temperature of maximum boiling point |
| C. | Increase pressure |
| D. | Reduce pressure |
| Answer» C. Increase pressure | |
| 5. |
The Boiling point elevation as the evaporation in an evaporator proceeds can be approximately measured by __________ |
| A. | Duhring’s rule |
| B. | Arrhenius rule |
| C. | Kozeny Carman rule |
| D. | Sieder tate rule |
| Answer» B. Arrhenius rule | |
| 6. |
The vapour released from the feed after being considerably concentrated is superheated steam. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
The temperature of water vapour released from the solution after facing boiling point elevation is ________ |
| A. | Equal to 100℃ |
| B. | Below 100℃ |
| C. | Above 100℃ |
| D. | Much larger than 100℃ |
| Answer» D. Much larger than 100℃ | |
| 8. |
Boiling point elevation causes the driving force of evaporation in the fluid to _________ |
| A. | Decrease |
| B. | Increase |
| C. | Remain same |
| D. | Increase tenfold |
| Answer» B. Increase | |
| 9. |
The boiling point of a solution is a colligative property because? |
| A. | It depends on the temperature of solution |
| B. | It depends on the concentration of solution |
| C. | It depends on the applied pressure on the solution |
| D. | It depends on the heat capacity of the solution |
| Answer» C. It depends on the applied pressure on the solution | |
| 10. |
Boiling point of a solution is a colligative property. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Boiling point of the solution ________ as the evaporation process proceeds. |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | Becomes half |
| Answer» B. Decreases | |
| 12. |
How can boiling point elevation be achieved in Evaporators? |
| A. | Increasing pressure |
| B. | Decreasing pressure |
| C. | Increasing Temperature |
| D. | Increasing concentration |
| Answer» E. | |