MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
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. |
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 | |
| 5. |
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 | |
| 6. |
Name the following region of the drying curve. |
| A. | Critical drying rate region |
| B. | Constant drying region |
| C. | Critical temperature region |
| D. | Critical humidity region |
| Answer» B. Constant drying region | |
| 7. |
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 | |