Question 21 : Path length of radiation through the atmosphere to the length of path when the sun is at zenith is called ___________
1. Declination
2. Air mass
3. Azimuth
4. Solar Constant
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Question 22 : Solar radiation which reaches the surface without scattering or absorbed is called _____________
1. Beam Radiation
2. Infrared radiation
3. Ultraviolet radiation
4. Diffuse radiation
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Question 23 : When the sun is directly on the top of head, it as referred to _________
1. Zenith
2. Azimuth
3. Declination
4. Hour angle
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Question 24 : What is the rate of solar energy reaching the earth surface?
1. 1016W
2. 865W
3. 2854W
4. 1912W
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Question 25 : Oil is estimated to last for ________ more.
1. 100 years
2. 500 years
3. A decade
4. 800 years
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Question 26 : LST stands for __________
1. Local standard time
2. Local solar temperature
3. Low surface temperature
4. Land surface temperature
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Question 27 : In which type of absorber plate is the overall flow direction is along the absorber glass plate?
1. Overlapped glass absorber
2. Finned absorber
3. Non-porous absorber plate
4. Porous absorber plate
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Question 28 : What is angle of declination on 305th day of year and what day is it?
1. -23.26^o, November 2
2. -15.06^o, November 1
3. -18.96^o, November 2
4. -10.52^o, November 1
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Question 29 : What is 'n' in the following solar intensity formula?
I = I_sc {1 + 0.033cos (360n/365)}
1. Day of the year
2. Month of the year
3. The year
4. Week of the year
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Question 30 : In what form is solar energy is radiated from the sun?
1. Ultraviolet Radiation
2. Infrared radiation
3. Electromagnetic waves
4. Transverse waves
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