MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
What is the meaning of 1 2 OD, 5 BWG? |
| A. | Wall Thickness of = 0.203 and Inner Diameter = 0.094 |
| B. | Wall Thickness of = 0.022 and Inner Diameter = 0.478 |
| C. | Wall Thickness of = 0.220 and Inner Diameter = 0.060 |
| D. | Wall Thickness of = 0.025 and Inner Diameter = 0.450 |
| Answer» D. Wall Thickness of = 0.025 and Inner Diameter = 0.450 | |
| 2. |
The Hydraulic Diameter (DH) is defined as _____
|
| A. | nP : is the wetted perimeter of flow passages of that side. |
| B. | ( frac{4A_o}{P} ) |
| C. | ( frac{A_o}{4P} ) |
| D. | ( frac{A_o}{P} ) |
| E. | ( frac{8A_o}{P} ) |
| Answer» B. ( frac{4A_o}{P} ) | |
| 3. |
Which of the following is not a characteristic of a Direct-Contact Exchanger? |
| A. | Only heat Transfer occurs without any Mass -Transfer |
| B. | The Exchanger Construction is relatively not expensive |
| C. | The fouling problem does not generally exist, due to the absence of a separating wall (heat transfer surface) between the two fluids |
| D. | Very high heat transfer rates are achievable |
| Answer» B. The Exchanger Construction is relatively not expensive | |
| 4. |
A gas-to-fluid exchanger can be referred to as a compact heat exchanger if it has a Hydraulic Diameter, DH _____ |
| A. | 6 mm |
| B. | 12 mm |
| C. | 6 mm |
| D. | 3 mm |
| Answer» B. 12 mm | |
| 5. |
In a Fluidised Bed Heat Exchanger with hot gas flow, at fluidisation the temperature of the bed is ________ |
| A. | Linearly Increasing |
| B. | Uniform |
| C. | Linearly Decreasing |
| D. | Decreasing but not Linear |
| Answer» C. Linearly Decreasing | |
| 6. |
In a ___________ heat exchanger, both fluids flow alternatively through the same flow passages, and hence heat transfer is intermittent. |
| A. | Shell and Tube |
| B. | Fluidised Bed |
| C. | Storage Type |
| D. | Cross Flow Type |
| Answer» D. Cross Flow Type | |
| 7. |
Which of the following is not a classification based on Construction of the heat Exchanger? |
| A. | Tubular |
| B. | Plate Type |
| C. | Multipass |
| D. | Regenerative |
| Answer» D. Regenerative | |
| 8. |
Which of the following is not an Indirect Contact type heat exchanger? |
| A. | Shell and Tube |
| B. | Feedwater Heater |
| C. | Spray and Tray type |
| D. | Plate Type |
| Answer» D. Plate Type | |