MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Solar Energy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Bowl collectors use a fixed curved receiver. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Polymer flat plate collectors can use plain water. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Bowl collectors operate similarly to _______ |
| A. | parabolic dish |
| B. | flat plate collector |
| C. | evacuated-tube collector |
| D. | evacuated flat tube collector |
| Answer» B. flat plate collector | |
| 4. |
What advantage does polymer collector have over metal collector? |
| A. | Better sales as they are produced in Europe |
| B. | Poor sales as they are produced in Europe |
| C. | They cannot be used in cold climate |
| D. | They can be used in cold climate |
| Answer» E. | |
| 5. |
Evacuated flat-plate solar collectors use _______ pumps. |
| A. | Heat pump |
| B. | Flash getter pump |
| C. | Non-evaporable getter |
| D. | Internal combustion |
| Answer» D. Internal combustion | |
| 6. |
Which of the following pumps is used in an evacuated-tube solar collector? |
| A. | Non-evaporable getter |
| B. | Flash getter pump |
| C. | Heat pump |
| D. | Water pump |
| Answer» C. Heat pump | |
| 7. |
Why does an evacuated flat plate collector require a glass-metal seal? |
| A. | To join the glass plate to the rest of metal envelope |
| B. | To join the glass plate to a part of metal envelope |
| C. | To disconnect the glass plate to the rest of plastic envelope |
| D. | To disconnect the glass plate to the rest of metal envelope |
| Answer» B. To join the glass plate to a part of metal envelope | |
| 8. |
Which of the following organisations developed first high vacuum insulation? |
| A. | NASA |
| B. | IIT |
| C. | Stanford |
| D. | CERN |
| Answer» E. | |
| 9. |
What is the metal sheet absorber surrounded with in an evacuated flat plate collector? |
| A. | Low volume inside flat envelope |
| B. | Low vacuum inside curved envelope |
| C. | High vacuum inside flat envelope |
| D. | Low vacuum inside thick curved envelope |
| Answer» D. Low vacuum inside thick curved envelope | |
| 10. |
Which of the following provides highest energy conversion efficiency in non-concentrating solar collectors? |
| A. | Flat plate collectors |
| B. | Evacuated flat plate collectors |
| C. | Evacuated-tube collectors |
| D. | Parabolic collectors |
| Answer» C. Evacuated-tube collectors | |
| 11. |
Which of the following are combined to form an evacuated flat plate solar collector? |
| A. | Flat plate solar collectors and evacuated-tube solar collectors |
| B. | Flat plate solar collectors and bowl collectors |
| C. | Bowl collectors and evacuated-tube solar collectors |
| D. | Polymer collectors and bowl collectors |
| Answer» B. Flat plate solar collectors and bowl collectors | |
| 12. |
_______ lose more heat to the environment than evacuated-tube solar collectors. |
| A. | Photovoltaics |
| B. | Solar stills |
| C. | Solar air conditioners |
| D. | Flat-plate collectors |
| Answer» E. | |
| 13. |
Why does flat plate collector perceived to have higher efficiency than evacuated tube solar collector in terms of area? |
| A. | Because flat plate collector has a large installation area |
| B. | Because evacuated tube collector is compact |
| C. | Because of the vacuum gap in evacuated tube collectors |
| D. | Because of the vacuum gap in flat plate collectors |
| Answer» D. Because of the vacuum gap in flat plate collectors | |
| 14. |
Which of the following is a problem with evacuated tubes? |
| A. | Underheating |
| B. | Overheating |
| C. | Poor absorption of sunlight |
| D. | Poor reception of sunlight |
| Answer» C. Poor absorption of sunlight | |
| 15. |
Which of the following is used to make a glass-glass evacuated tubes? |
| A. | Borosilicate glass |
| B. | Carbon |
| C. | Wood |
| D. | Plastic coating |
| Answer» B. Carbon | |