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This section includes 18 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. |
In which type of absorber plate is the overall flow direction is along the absorber glass plate? |
A. | Overlapped glass absorber |
B. | Finned absorber |
C. | Non-porous absorber plate |
D. | Porous absorber plate |
Answer» B. Finned absorber | |
2. |
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 | |
3. |
Solar radiation which reaches the surface without scattering or absorbed is called _____________ |
A. | Beam Radiation |
B. | Infrared radiation |
C. | Ultraviolet radiation |
D. | Diffuse radiation |
Answer» B. Infrared radiation | |
4. |
By which of the following symbol is solar Declination denoted by ____________ |
A. | δ |
B. | ρ |
C. | Δ |
D. | γ |
Answer» B. ρ | |
5. |
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 | |
6. |
Solar radiation received at any point of earth is called ______________ |
A. | Insolation |
B. | Beam Radiation |
C. | Diffuse Radiation |
D. | Infrared rays |
Answer» B. Beam Radiation | |
7. |
How much would be the angle of declination on DECEMBER 21 at 0900 h (LAT). The collector s located in New Delhi (28o35'N, 77o12'E) and is tilted at an angle of 36o with the horizontal and is pointing south? |
A. | -44.28 o |
B. | -28.92 o |
C. | -23.45 o |
D. | -42.22 o |
Answer» D. -42.22 o | |
8. |
Solar Altitude is also called as ________ |
A. | Declination |
B. | Altitude angle |
C. | Zenith angle |
D. | Azimuth angle |
Answer» C. Zenith angle | |
9. |
Which type of absorber increases the heat transfer area over a simple flat plate absorber of the same capacity? |
A. | Porous absorber plate |
B. | Non-porous absorber plate |
C. | Over lapped glass absorber |
D. | Finned absorber |
Answer» E. | |
10. |
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 | |
11. |
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 | |
12. |
In which absorber matrix material is arranged and the back absorber plate is eliminated? |
A. | Porous absorber plate |
B. | Non-porous absorber plate |
C. | Over lapped glass absorber |
D. | Finned absorber |
Answer» B. Non-porous absorber plate | |
13. |
Which type of fuel is removed from the reactor core after reaching end of core life service? |
A. | Burnt Fuel |
B. | Spent fuel |
C. | Engine oil |
D. | Radioactive fuel |
Answer» C. Engine oil | |
14. |
Radiation intensity 'I' normal to the surface is given by __________ |
A. | ICosθ |
B. | Itanθ |
C. | ICotθ |
D. | Isinθ |
Answer» B. Itanθ | |
15. |
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 | |
16. |
The scattered solar radiation is called ____________ |
A. | Direct Radiation |
B. | Beam Radiation |
C. | Diffuse radiation |
D. | Infrared Radiation |
Answer» D. Infrared Radiation | |
17. |
How is heat loss over come in liquid plate collectors? |
A. | By insulation |
B. | By casing |
C. | By the transparent cover |
D. | From provided tubes |
Answer» B. By casing | |
18. |
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 | |