MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
Overheat protection is done by passing hot water through collector during night. |
| A. | False |
| B. | True |
| Answer» C. | |
| 2. |
Batch collectors reduce heat loss by thermally insulating the storage tank. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
How is the heat transfer fluid (HTF) heated in bubble pump systems? |
| A. | By subjecting the closed HTF circuit to high pressure |
| B. | By subjecting the closed HTF circuit to high pressure and by increasing the volume |
| C. | By subjecting the closed HTF circuit to low pressure and by decreasing the volume |
| D. | By subjecting the closed HTF circuit to low pressure |
| Answer» E. | |
| 4. |
Which of the following is an example of direct solar water heating system? |
| A. | Pressurised antifreeze system |
| B. | Pumped systems to circulate transfer fluid |
| C. | Convection heat storage system |
| D. | Drainback system |
| Answer» D. Drainback system | |
| 5. |
Passive systems rely on heat-driven convection. |
| A. | False |
| B. | True |
| Answer» C. | |
| 6. |
How is water heated in a direct solar water heating system? |
| A. | By circulating potable water through the collector |
| B. | By directly exposing water to sunlight |
| C. | By using convection from a different transfer fluid |
| D. | By using heat exchanger |
| Answer» B. By directly exposing water to sunlight | |
| 7. |
How is the heat transferred from transfer fluid to potable water in indirect solar water heating systems? |
| A. | By directly exposing the substance to sunlight |
| B. | By using an electrical heater |
| C. | By circulating potable water through the collector |
| D. | By using heat exchanger |
| Answer» E. | |
| 8. |
Direct solar water heating systems ______ |
| A. | offer great overheating protection |
| B. | are called pumped systems |
| C. | offer no overheating protection |
| D. | offer great freeze protection |
| Answer» D. offer great freeze protection | |
| 9. |
Which of the following metals are used to make pipes of low cost solar water heating system? |
| A. | Gold |
| B. | Copper |
| C. | Polymer |
| D. | Silver |
| Answer» C. Polymer | |
| 10. |
How does freeze-tolerance work? |
| A. | By expansion of pipes carrying transfer fluid |
| B. | By compression of pipes carrying transfer fluid |
| C. | By increasing the temperature of pipes carrying transfer fluid |
| D. | By increasing the pressure inside pipes carrying transfer fluid |
| Answer» B. By compression of pipes carrying transfer fluid | |
| 11. |
What are drainback systems in solar water heating system? |
| A. | The system that reverses the direction of flow of transfer fluid |
| B. | The system that tracks the sun |
| C. | The system that pumps excess transfer fluid |
| D. | The system that drains the transfer fluid |
| Answer» E. | |
| 12. |
What is freeze protection in a solar water heating system? |
| A. | Ensures that the system is frozen |
| B. | Prevents the operation of drainback system |
| C. | Prevents damage to system due to freezing of transfer fluid |
| D. | Ensures that the transfer fluid is frozen |
| Answer» D. Ensures that the transfer fluid is frozen | |
| 13. |
Which of the following determines complexity and size of solar water heating system? |
| A. | Food |
| B. | Changes in ambient temperature |
| C. | Chemicals |
| D. | Solar radiation constant |
| Answer» C. Chemicals | |
| 14. |
What is solar water heater? |
| A. | Use solar energy to heat water |
| B. | Use solar energy to generate current which is then used to heat water |
| C. | Use water to generate heat |
| D. | Use solar energy to generate steam |
| Answer» B. Use solar energy to generate current which is then used to heat water | |