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. |
Nijegorodov s model revised the constants of ASHRAE s model. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The clearness index is a measure of atmospheric effects in an isolated place. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following does the correlation of decomposition models (between diffuse and total radiation on horizontal surface) depend on? |
| A. | Hourly clearness index ratio |
| B. | Daily clearness index ratio |
| C. | Hourly global horizontal radiation |
| D. | Yearly extraterrestrial radiation |
| Answer» B. Daily clearness index ratio | |
| 4. |
Decomposition models are based on correlation between ____________ |
| A. | global solar radiation and active radiation |
| B. | diffuse and UV radiation on vertical surface |
| C. | diffuse and total radiation on inclined surface |
| D. | diffuse and total radiation on horizontal surface |
| Answer» E. | |
| 5. |
How do decomposition models compute diffuse solar radiation? |
| A. | From specific information of environmental conditions |
| B. | From measuring instruments |
| C. | From global solar radiation data |
| D. | From ASHRAE model |
| Answer» D. From ASHRAE model | |
| 6. |
Which of the following is an example of parametric model used to compute diffuse radiation? |
| A. | Chandrasekaran and Kumar s model |
| B. | ASHRAE model |
| C. | Erb s model |
| D. | T-model |
| Answer» C. Erb s model | |
| 7. |
Which of the following is required as a parameter in a parametric model? |
| A. | Cloud cover |
| B. | Solar insolation constant |
| C. | Material of measuring instrument |
| D. | Type of measuring instrument |
| Answer» B. Solar insolation constant | |
| 8. |
What are the two models used to determine diffuse radiation? |
| A. | Rayleigh scattering and Hybrid pi model |
| B. | Parametric model and Rayleigh scattering |
| C. | Decomposition model and Hybrid pi model |
| D. | Parametric and decomposition models |
| Answer» E. | |
| 9. |
Solar radiation on a horizontal surface is the summation of _______ |
| A. | direct and active solar radiation |
| B. | active and diffuse solar radiation |
| C. | diffuse and direct solar radiation |
| D. | electrons and photons |
| Answer» D. electrons and photons | |
| 10. |
Which of the following is not used to calculate hourly radiation? |
| A. | Sun s declination angle |
| B. | Material of parabolic dish |
| C. | Solar constant |
| D. | Hour angle |
| Answer» C. Solar constant | |
| 11. |
What is zenith angle? |
| A. | Angle between sun and vertical |
| B. | Angle between the line joining the location on earth s surface and the equatorial plane |
| C. | Angle between extended sun s rays to earth s center and equatorial plane |
| D. | Angle between projection of sun s rays on horizontal surface and equatorial plane |
| Answer» B. Angle between the line joining the location on earth s surface and the equatorial plane | |
| 12. |
Which of the following can be used to estimate beam radiation? |
| A. | Photoelectric effect |
| B. | Solar insolation constant |
| C. | Time taken by sun s rays to reach earth |
| D. | Zenith angle and altitude |
| Answer» E. | |
| 13. |
Which of the following is generally used to compute global and diffuse radiation values? |
| A. | Parabolic dish |
| B. | Flat plate collector |
| C. | Theoretical models |
| D. | Pyranometer |
| Answer» D. Pyranometer | |
| 14. |
Why are global and diffuse radiation values not measured? |
| A. | Because of sophisticated measuring instruments |
| B. | Because measuring instruments are not available everywhere |
| C. | Because of unavailability of skilled labour to operate measuring instruments |
| D. | Because measuring instruments are not available everywhere |
| Answer» C. Because of unavailability of skilled labour to operate measuring instruments | |
| 15. |
Hourly radiation values can be used to evaluate the performance of ________ |
| A. | flat plate collectors |
| B. | curved collectors |
| C. | parabolic collectors |
| D. | metallic collectors |
| Answer» B. curved collectors | |