MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The initial cost of the air-cooled condenser is high. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 2. |
What is the fouling factor? |
| A. | Heat transfer coefficient |
| B. | 1 / Heat transfer coefficient |
| C. | ( sqrt{Heat ,transfer ,coefficient} ) |
| D. | 1 / (Heat transfer coefficient)<sup>2</sup> |
| Answer» C. ( sqrt{Heat ,transfer ,coefficient} ) | |
| 3. |
Which of the following is not the effect of water fouling? |
| A. | Increase in heat transfer rate |
| B. | Tube insulation |
| C. | Reduction in heat transfer rate |
| D. | Restrict water flow |
| Answer» B. Tube insulation | |
| 4. |
Materials form deposits inside the condenser water tubes is called _______ |
| A. | water rusting |
| B. | water corrosion |
| C. | water fouling |
| D. | water failing |
| Answer» D. water failing | |
| 5. |
Which of the following does not affect the refrigeration capacity of the condenser? |
| A. | Material |
| B. | Amount of contact |
| C. | Temperature difference |
| D. | Type of refrigerant |
| Answer» E. | |
| 6. |
What is the expression for the heat rejection factor in terms of C.O.P.? |
| A. | 1 + C.O.P. |
| B. | 1 C.O.P. |
| C. | 1 1 / C.O.P. |
| D. | 1 + 1 / C.O.P. |
| Answer» E. | |
| 7. |
What is the expression for the heat rejection factor? |
| A. | HRF = W / R<sub>E</sub> |
| B. | HRF = R<sub>E</sub> / W |
| C. | HRF = Q<sub>C</sub> / R<sub>E</sub> |
| D. | HRF = R<sub>E</sub> / Q<sub>C</sub> |
| Answer» D. HRF = R<sub>E</sub> / Q<sub>C</sub> | |
| 8. |
What is the expression for the load on the condenser? |
| A. | Q<sub>C</sub> = R<sub>E</sub> + W |
| B. | Q<sub>C</sub> = R<sub>E</sub> W |
| C. | Q<sub>C</sub> = R<sub>E</sub> x W |
| D. | Q<sub>C</sub> = R<sub>E</sub> / W |
| Answer» B. Q<sub>C</sub> = R<sub>E</sub> W | |
| 9. |
Which of the following is not the criterion for the selection of the condenser? |
| A. | The capacity of the condenser |
| B. | Type of refrigerant used |
| C. | Type of cooling medium available |
| D. | Type of compressor and evaporator used |
| Answer» E. | |
| 10. |
What is the purpose of using a condenser? |
| A. | To absorb heat |
| B. | To reject heat |
| C. | To convert liquid refrigerant to vapor refrigerant |
| D. | To convert solid refrigerant to vapor refrigerant |
| Answer» C. To convert liquid refrigerant to vapor refrigerant | |