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This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Energy Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
The solar angle in degrees along the horizon east or west of north or it is the horizontal angle measured from north to the horizontal projection of sun’s rays is called ___________ |
A. | Solar azimuth angle |
B. | Zenith angle |
C. | Altitude angle |
D. | Declination |
Answer» B. Zenith angle | |
2. |
The angle between the sun’s rays and a line perpendicular to the horizontal plane through angle the beam of the sun and vertical is called __________ |
A. | Solar Azimuth angle |
B. | Zenith angle |
C. | Altitude angle |
D. | Declination |
Answer» C. Altitude angle | |
3. |
Solar Altitude is also called as ________ |
A. | Declination |
B. | Altitude angle |
C. | Zenith angle |
D. | Azimuth angle |
Answer» C. Zenith angle | |
4. |
The angle through which the earth must turn to bring the meridian of a point directly in sun’s rays is called __________ |
A. | Hour angle |
B. | Declination |
C. | Latitude |
D. | Air mass |
Answer» B. Declination | |
5. |
By which of the following symbol is solar Declination denoted by ____________ |
A. | δ |
B. | ρ |
C. | Δ |
D. | γ |
Answer» B. ρ | |
6. |
Angular distance of sun’s rays north or south of the equator is called _______ |
A. | Declination |
B. | Hour angle |
C. | Latitude |
D. | Air mass |
Answer» B. Hour angle | |
7. |
Radiation intensity ‘I’ normal to the surface is given by __________ |
A. | ICosθ |
B. | Itanθ |
C. | ICotθ |
D. | Isinθ |
Answer» B. Itanθ | |
8. |
What is ‘n’ in the following solar intensity formula? I = Isc {1 + 0.033cos (360n/365)} |
A. | Day of the year |
B. | Month of the year |
C. | The year |
D. | Week of the year |
Answer» B. Month of the year | |
9. |
The amount of energy received in unit time on a unit area perpendicular to the sun’s direction at the mean distance of the earth from the sun is called ________ |
A. | Solar radiation |
B. | Solar constant |
C. | Intensity of solar radiation |
D. | Air Mass |
Answer» C. Intensity of solar radiation | |
10. |
SOLAR_ALTITUDE_IS_ALSO_CALLED_AS_________?$ |
A. | Declination |
B. | Altitude angle |
C. | Zenith angle |
D. | Azimuth angle |
Answer» C. Zenith angle | |
11. |
THE_ANGLE_THROUGH_WHICH_THE_EARTH_MUST_TURN_TO_BRING_THE_MERIDIAN_OF_A_POINT_DIRECTLY_IN_SUN‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_RAYS_IS_CALLED___________?$# |
A. | Hour angle |
B. | Declination |
C. | Latitude |
D. | Air mass |
Answer» B. Declination | |
12. |
The solar angle in degrees along the horizon east or west of north or it is the horizontal angle measured from north to the horizontal projection of sun’s rays is called ___________$# |
A. | Solar azimuth angle |
B. | Zenith angle |
C. | Altitude angle |
D. | Declination |
Answer» B. Zenith angle | |
13. |
The angle between the sun’s rays and a line perpendicular to the horizontal plane through angle the beam of the sun and vertical is called __________$# |
A. | Solar Azimuth angle |
B. | Zenith angle |
C. | Altitude angle |
D. | Declination |
Answer» C. Altitude angle | |
14. |
By which of the following symbol is solar Declination denoted by ___________? |
A. | δ |
B. | ρ |
C. | Δ |
D. | γ |
Answer» B. ‚âà√¨‚àö√ñ | |
15. |
Angular distance of sun’s rays north or south of the equator is called _______$ |
A. | Declination |
B. | Hour angle |
C. | Latitude |
D. | Air mass |
Answer» B. Hour angle | |
16. |
Angle made by radial line joining the location to the centre of the earth with the projection of the line on the equatorial plane is called _________ |
A. | Latitude |
B. | Zenith angle |
C. | Hour angle |
D. | Declination |
Answer» B. Zenith angle | |
17. |
Radiation intensity ‘I’ normal to the surface is given by __________$ |
A. | ICosθ |
B. | Itanθ |
C. | ICotθ |
D. | Isinθ |
Answer» B. Itan‚âà√≠‚Äö√†√® | |
18. |
Path length of radiation through the atmosphere to the length of path when the sun is at zenith is called ___________ |
A. | Declination |
B. | Air mass |
C. | Azimuth |
D. | Solar Constant |
Answer» C. Azimuth | |
19. |
When the sun is directly on the top of head, it as referred to _________ |
A. | Zenith |
B. | Azimuth |
C. | Declination |
D. | Hour angle |
Answer» B. Azimuth | |
20. |
What is ‘n’ in the following solar intensity formula?$ |
A. | } |
B. | Day of the year |
C. | Month of the year |
D. | The year |
Answer» B. Day of the year | |
21. |
The amount of energy received in unit time on a unit area perpendicular to the sun’s direction at the mean distance of the earth from the sun is called ________ |
A. | Solar radiation |
B. | Solar constant |
C. | Intensity of solar radiation |
D. | Air Mass |
Answer» C. Intensity of solar radiation | |