Question 11 : The angle being measured from a plane and which is equal to angle between the beam of rays and normal to the plane is called __________
1. Incident angle
2. Azimuth angle
3. Hour angle
4. Declination
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Question 12 : The vector sum of the components along the line normal of the titled surface in a direction normal to the tilted surface is called as__________
1. Solar intensity
2. Declination
3. Incident angle
4. Hour angle
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Question 13 : By which of the following symbol is solar Declination denoted by ____________
1. δ
2. ρ
3. Δ
4. γ
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Question 14 : The frame which contains all the parts is called __________
1. box
2. plate
3. enclose
4. container
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Question 15 : 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 _________
1. Latitude
2. Zenith angle
3. Hour angle
4. Declination
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Question 16 : The angle through which the earth must turn to bring the meridian of a point directly in sun's rays is called __________
1. Hour angle
2. Declination
3. Latitude
4. Air mass
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Question 17 : _______is a glazing which limits the radiation and convection heat losses.
1. Absorber plate
2. Selective surface
3. Insulation
4. Transparent cover
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Question 18 : What is total amount of solar energy received by earth and atmosphere?
1. 3.8 X 1024 J/year
2. 9.2 X 1024 J/year
3. 5.4 X 1024 J/year
4. 2.1 X 1024 J/year
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Question 19 : Solar radiation received at any point of earth is called ______________
1. Insolation
2. Beam Radiation
3. Diffuse Radiation
4. Infrared rays
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Question 20 : The time from sunrise to sunset is termed as _______________
1. Slope
2. Day length
3. Local solar time
4. Solar intensity
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