1. Which of the following is (are) renewable resource(s)
(A) wind
(B) tides
(C) geothermal heat
(D) all of the above
2. Which of the following country generate all their electricity using renewable energy?
(A) Iceland
(B) England
(C) USA
(D) China
3. Renwable energy often displaces conventional fuel in which of the following area
(A) space heating
(B) transportation
(C) electricity generation
(D) all of the above
4. Which of the following is used as fuel for transportation
(A) ethanol
(B) aldehyde
(C) ketone
(D) all of the above
5. Biodiesel is produced from oils or fats using
(A) fermentation
(B) transesterification
(C) distillation
(D) none of the above
6. Photovoltaic cell converts solar energy into
(A) heat energy
(B) electric energy
(C) mechanical energy
(D) chemical energy
7. In which of the following region winds are stronger and constant
(A) deserts
(B) offshore
(C) low altitudes sites
(D) all of the above
8. Following country met more than 40% of its electricity demand from wind energy
(A) Denmark
(B) Portugal
(C) Ireland
(D) Spain
9. Concentrated solar power (CSP) systems use ____ to focus a large area of sunlight into a small beam.
(A) lenses
(B) mirrors
(C) tracking systems
(D) all of the above
10. The difference, in temperature between the core of the planet and its surface, is known as
(A) geothermal coefficient
(B) geothermal gradient
(C) geothermal constant
(D) none of the above
11. Biomass can be converted to
(A) methane gas
(B) ethanol
(C) biodiesel
(D) all of the above
12. The International Renewable Energy Agency (IRENA) was formed in
(A) 2008
(B) 2009
(C) 2010
(D) 2011
13. Which of the following was the first solar powered aircraft to complete a circumnavigation of the world?
(A) Solar impulse
(B) Solar impulse 2
(C) Solar impulse 3
(D) Solar impulse 4
14. Following is true for biomass and biofuels
(A) their contribution in reduction in CO2 emissions is limited
(B) both emit large amount of air pollution when burned
(C) they consume large amounts of water
(D) all of the above
15. Direct Solar energy is used for
(A) Water heating
(B) Distillation
(C) Drying
(D) All of the above
16. The power from the sun intercepted by the earth is approximately
(A) 1.8 x 108 MW
(B) 1.8 x 1011 MW
(C) 1.8 x 1014 MW
(D) 1.8 x 1017 MW
17. The following is indirect method of Solar energy utilization
(A) Wind energy
(B) Biomass energy
(C) Wave energy
(D) All of the above
18. A liquid flat plate collector is usually held tilted in a fixed position, facing _____ if located in the northern hemisphere.
(A) North
(B) South
(C) East
(D) West
19. The collection efficiency of Flat plate collector can be improved by
(A) putting a selective coating on the plate
(B) evacuating the space above the absorber plate
(C) both (A) and (B)
(D) None of the above
20. The efficiency of various types of collectors ______ with _______ temperature.
(A) increases, decreasing
(B) decreases, increasing
(C) remains same, increasing
(D) depends upon type of collector
21. Maximum efficiency is obtained in
(A) Flat plate collector
(B) Evacuated tube collector
(C) Line focussing collector
(D) Paraboloid dish collector
22. The following type of energy is stored as latent heat
(A) Thermal energy
(B) Chemical energy
(C) Electrical energy
(D) Mechanical energy
23. Which of the following type of collector is used for low temperature systems?
(A) Flat plate collector
(B) Line focussing parabolic collector
(C) Paraboloid dish collector
(D) All of the above
24. In the paraboloid dish concept, the concentrator tracks the sun by rotating about
(A) One axes
(B) Two axes
(C) Three axes
(D) None of the above
25. The sun subtends an angle of _____ minutes at the earth’s surface.
(A) 22
(B) 32
(C) 42
(D) 52
26. The value of Solar Constant is
(A) 1347 W/m2
(B) 1357 W/m2
(C) 1367 W/m2
(D) 1377 W/m2
27. The extraterrestrial radiation flux varies by ____ % over a year.
(A) ± 1.1
(B) ± 2.2
(C) ± 3.3
(D) ± 4.4
28. The following is (are) laws of black body radiation.
(A) Plank’s law
(B) Stefan-Boltzmann law
(C) both (A) and (B)
(D) None of the above
29. Absorption of Solar radiations at earth’s surface occur due to presence of
(A) Ozone
(B) Water vapours
(C) Carbon di-oxide
(D) All of the above
30. Global radiation =
(A) Direct radiation – Diffuse Radiation
(B) Direct radiation + Diffuse Radiation
(C) Direct radiation / Diffuse Radiation
(D) Diffuse Radiation / Direct radiation
31. The zenith angle is the angle made by the sun’s rays with the ____ to a ______ surface.
(A) normal, horizontal
(B) tangent, horizontal
(C) normal, vertical
(D) tangent, vertical
32. Solar radiation flux is usually measured with the help of a
(A) Anemometer
(B) Pyranometer
(C) Sunshine recorder
(D) All of the above
33. Beam radiations are measured with
(A) Anemometer
(B) Pyrheliometer
(C) Sunshine recorder
(D) All of the above
34. The angle made by the plane surface with the horizontal is known as
(A) Latitude
(B) Slope
(C) Surface azimuth angle
(D) Declination
35. The angle made in the horizontal plane between the horizontal line due south and the projection of the normal to the surface on the horizontal plane is
(A) Hour angle
(B) Declination
(C) Surface azimuth angle
(D) Solar altitude angle
36. Surface azimuth angle varies from
(A) 0 to 90°
(B) -90 to 90°
(C) 0 to 180°
(D) -180° to 180°
37. The hour angle is equivalent to
(A) 10° per hour
(B) 15° per hour
(C) 20° per hour
(D) 25° per hour
38. The complement of zenith angle is
(A) Solar altitude angle
(B) Surface azimuth angle
(C) Solar azimuth angle
(D) Slope
39. The correction has a magnitude of ___ minutes for every degree difference in longitude.
(A) 2
(B) 4
(C) 6
(D) 8
40. The global radiation reaching a horizontal surface on the earth is given by
(A) Hourly beam radiation + Hourly diffuse radiation
(B) Hourly beam radiation – Hourly diffuse radiation
(C) Hourly beam radiation / Hourly diffuse radiation
(D) Hourly diffuse radiation / Hourly beam radiation
41. The ratio of the beam radiation flux falling on a tilted surface to that falling on a horizontal surface is called the
(A) Radiation shape factor
(B) Tilt factor
(C) Slope
(D) None of the above
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