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. |
Cloud cover estimation is free from error. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Reduction of error between simulated values and the true values increases accuracy of the empirical model. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Why do ground-based observers overestimate overcast cloud cover? |
| A. | Clouds appear to fill large area of sky when near horizon |
| B. | Clouds appear to fill large area of sky when far from horizon |
| C. | Clouds appear to fill small area of sky when near horizon |
| D. | Clouds appear to fill small area of sky when far from horizon |
| Answer» B. Clouds appear to fill large area of sky when far from horizon | |
| 4. |
Which of the following statistical indicator is used to evaluate any type of model? |
| A. | mean |
| B. | median |
| C. | error |
| D. | root mean square error |
| Answer» E. | |
| 5. |
Which of the following is important during data acquisition from measuring instruments? Assume that details about data to be collected is known. |
| A. | Type of data |
| B. | Materials used to manufacture measuring instruments |
| C. | Location, environment and characteristics of measuring instrument |
| D. | Brand of measuring instruments |
| Answer» D. Brand of measuring instruments | |
| 6. |
What does the ratio of global solar radiation (H) and estimated daily global radiation for cloudless sky (H0) indicate? |
| A. | Solar radiation transmission ratio |
| B. | Clearness index |
| C. | Solar radiation reflection percentage |
| D. | Turbidity |
| Answer» C. Solar radiation reflection percentage | |
| 7. |
How is an empirical model developed? |
| A. | From data acquired via sensors or measuring instruments |
| B. | From theoretical analysis |
| C. | From deep learning |
| D. | From trial and error |
| Answer» B. From theoretical analysis | |
| 8. |
Akinoglu and Fcevit uses a _______ to estimate solar radiation. |
| A. | linear model |
| B. | power model |
| C. | exponential model |
| D. | quadratic model |
| Answer» E. | |
| 9. |
Which of the following models uses linear regression to estimate solar radiation from sunshine duration? |
| A. | Angstrom-Savinov |
| B. | Ertekin and Yladtz |
| C. | Anstrom-Prescott |
| D. | Sen |
| Answer» D. Sen | |
| 10. |
How does the constant k in Angstrom-Savinov vary in high and low latitudes? |
| A. | Between 0.55 in high latitudes and 0.22 in low latitudes |
| B. | Between 0.55 in high latitudes and 0.33 in low latitudes |
| C. | Between 0.33 in high latitudes and 0.55 in low latitudes |
| D. | Between 0 in high latitudes and 0.9 in low latitudes |
| Answer» C. Between 0.33 in high latitudes and 0.55 in low latitudes | |
| 11. |
The constant k in Angstrom-Savinov formula depends on ________ |
| A. | latitude of the location |
| B. | longitude of the location |
| C. | solar radiation |
| D. | cloud opacity |
| Answer» B. longitude of the location | |
| 12. |
What does the constant k signify in the Angstrom-Savinov formula? |
| A. | Global solar radiation |
| B. | Mean cloudiness |
| C. | Reflection of solar radiation within clouds |
| D. | Transmission of solar radiation within clouds |
| Answer» E. | |
| 13. |
Which does Angstrom-Savinov formula tell? |
| A. | Relationship between local solar radiation and global cloudiness |
| B. | Relationship between local solar radiation and local cloudiness |
| C. | Relationship between global solar radiation and mean cloudiness |
| D. | Relationship between global solar radiation and global cloudiness |
| Answer» D. Relationship between global solar radiation and global cloudiness | |
| 14. |
Which of the following is a reason for inverse relationship between insolation and cloud cover in sky? |
| A. | Sunshine duration records are caused by sun being obstructed by transparent cloud cover |
| B. | Sunshine duration records are caused by sun being obstructed by opaque cloud cover |
| C. | Sunshine duration records are caused by sunshine being transmitted through opaque cloud cover |
| D. | Sunshine duration records are caused by sun being obstructed by cloud cover |
| Answer» C. Sunshine duration records are caused by sunshine being transmitted through opaque cloud cover | |
| 15. |
What is the relationship between insolation and cloud cover in sky? |
| A. | Inverse |
| B. | Directly proportional |
| C. | Square |
| D. | Exponential |
| Answer» B. Directly proportional | |