SOLAR
1. The term photo voltaic comes from ________
a) Spanish
b) Greek
c) German
d) English
7. The amount of photo generated current increases
slightly with an increase in _________
a) Temperature
b) Photons
c) Diode current
2. The volt is the units of emf that was named after its
inventor _________
d) Shunt current
a) Alessandro volta
8. Solar cells are made from bulk materials that are
cut into wafer of _________ thickness.
b) Alxender volta
a) 120-180μm
c) Alexa volta
b) 120-220μm
d) Alexandro volta
c) 180-220μm
3. The term photo voltaic is in use since _________
d) 180-240μm
a) 1840
b) 1844
9. __________ is one of the most important materials
is also known as solar grade silicon.
c) 1849
a) Crushed silicon
d) 1850
b) Crystalline silicon
4. When the source of light is not sun light then the
photo voltaic cell is used as ____________
c) Powdered silicon
a) Photo diode
b) Photo voltaic cell
10. __________ photo voltaic devices in the form of
thin films.
c) Photo detector
a) Cadmium Telluroide
d) Photo transmitter
b) Cadmium oxide
5. The region where the electrons and holes diffused
across the junction is called ________
c) Cadmium sulphide
a) Depletion Junction
11. __________ is a direct band gap material.
b) Depletion region
a) Copper Indium Gallium Selenide
c) Depletion space
b) Copper Selenide
d) Depletion boundary
c) Copper Gallium Telluride
6. The current produce by the solar cell can be given
by _________
d) Copper Indium Gallium Diselenide
a) IL – ID + ISh
12. Dye-sensitized solar cells are made from
________ organic dye.
b) IL + ID – ISh
a) Ruthium melallo
c) IL + ID + ISh
b) Aniline
d) IL – ID – ISh
c) Safranine
d) Silicon
d) Cadmium sulphate
d) Induline
4. What is the main source for the formation of wind?
13. Quantum dot solar cells are based on _______
a) Uneven land
a) Gratzel cell
b) Sun
b) Solar cell
c) Vegetation
c) Voltaic cell
d) Seasons
d) Galvanic cell
5. Which country created wind mills?
14. The quantum dot used are _______
a) Egypt
a) Cds
b) Mongolia
b) CdTe
c) Iran
c) PbO
d) Japan
d) GaAs
6. “During the day, the air above the land heats up
more quickly than the air over water”.
15. Organic polymer solar cells are made from
Polyphenylene.
a) True
a) True
b) False
b) False
7. What happens when the land near the earth’s
equator is heated?
WIND
1. What does Heating and cooling of the atmosphere
generates?
a) All the oceans gets heated up
b) Small wind currents are formed
a) Thermo line circulation
c) Rise in tides
b) Radiation currents
d) Large atmospheric winds are created
c) Convection currents
8. What type of energy is wind energy?
d) Conduction currents
a) Renewable energy
2. How much is the energy available in the winds
over the earth surface is estimated to be?
b) Non-renewable energy
a) 2.9 X 120 MW
b) 1.6 X 107 MW
c) Conventional energy
d) Commercial energy
c) 1 MW
9. What are used to turn wind energy into electrical
energy?
d) 5MW
a) Turbine
3. How much wind power does India hold?
b) Generators
a) 20,000 MW
c) Yaw motor
b) 12,000 MW
d) Blades
c) 140,000 MW
10. What is the diameter of wind turbine blades?
d) 5000 MW
a) 320 feet
b) 220 feet
c) 80 feet
d) 500 feet
11. At what range of speed is the electricity from the
wind turbine is generated?
4. Which type of turbine is commonly used in tidal
energy?
a) Francis turbine
b) Kaplan turbine
c) Pelton wheel
a) 100 – 125 mph
d) Gorlov turbine
b) 450 – 650 mph
5. How is water trapped from coastal waters?
c) 250 – 450 mph
a) By building canals
d) 30-35 mph
b) By building dams
12. When did the development of wind power in
India began?
c) By digging wells
a) 1965
d) By storing in tanks
b) 1954
6. Water to the turbine is allowed through the
__________
c) 1990
a) Pipes
d) 1985
b) Sluice gates
TIDAL
c) Canals
1. How is OTEC caused?
d) Pumps
a) By wind energy
7. The tides are rhythmic and constant.
b) By geothermal energy
a) True
c) By solar energy
b) False
d) By gravitational force
8. For exactly how much time does it take for one
tidal cycle?
2. What does OTEC stand for?
a) Ocean thermal energy cultivation
b) Ocean thermal energy conversion
c) Ocean techno energy conservation
d) Ocean thermal energy consumption
3. Which country has world’s largest tidal power
plant?
a) Netherlands
b) South Korea
c) Laos
d) Bolivia
a) 22h, 20min
b) 24h, 50min
c) 20h, 10min
d) 22h, 50min
9. What type of tide is it if the difference between
high and low tide is greatest?
a) Diurnal tide
b) Neap tide
c) Spring tide
d) Ebb tide
10. A tide whose difference between high and low
tides is least is called as __________
a) Diurnal tide
a) Sugar cane
b) Neap tide
b) Wheat straw
c) Spring tide
c) Corn stover
d) Ebb tide
d) Orchard prunings
11. Which of the turbine can be mounted vertically
and horizontally?
5. Which of the following forestry materials can be
used as biomass?
a) Pelton wheel
a) Logging residues
b) Kaplan turbine
b) Tallow
c) Gorlov turbine
c) Fish oil
d) Francis turbine
d) Manure
12. What types of tides occur when there is so much
interference with continents?
6. Which of the following is not used as biomass?
a) Diurnal tide
b) Neap tide
c) Spring tide
d) Ebb tide
BIOFUEL/BIOMASS
1. The term biomass most often refers to
___________
a) Inorganic matter
b) Organic matter
c) Chemicals
a) Hybrid poplar
b) Willow algae
c) Iron nails
d) Trap grease
7. The aerobic digestion of sewage is used to produce
__________
a) Biomass
b) Bio fuels
c) Synthetic fuels
d) Metal articles
d) Ammonium compounds
8. Bio ethanol is denatured alcohol that is also called
as __________
2. Dead organisms also come under the biomass.
a) Ethylene
a) True
b) Methylated spirit
b) False
c) Ethylene glycol
3. Biomass is useful to produce __________
d) Methylene
a) Chemicals
9. The production of bio ethanol is by fermenting the
_________ and starch components.
b) Fibres
c) Biochemicals
d) Transportation fuels
4. Which one of the following is an example of starch
crops biomass feed stocks?
a) Acid
b) Milk
c) Sugar
d) Alcohol
10. The bio ethanol is subjected to rectification to
remove ___________
a) Sugar
d) 55-60
OCEAN THERMAL
b) Enzymes
1. The ocean thermal energy conversion(OTEC) is
uses ___________
c) Yeast
a) Energy difference
d) Impurities
b) Potential difference
11. The bio ethanol obtained in the fermentation
process has __________ purity.
c) Temperature difference
a) 99%
b) 99.2%
c) 99.4%
d) 99.7%
d) Kinetic difference
2. OTEC is developed in ___________
a) 1880
b) 1926
c) 1890
12. The by-products that are produced during
rectification of bio ethanol is used as_________
d) 1930
a) Pig feed
3. The OTEC is constructed in __________
b) Cow feed
a) 1920
c) Dog feed
b) 1924
d) Sheep feed
c) 1922
13. To make transport fuel the bio ethanol is blended
with _________
d) 1926
a) Diesel
4. The by-product of the ocean thermal energy
conversion is ____________
b) Petrol
a) Hot water
c) Oil
b) Cold water
d) Kerosene
c) Chemicals
14. _________ is called as the bio gas.
d) Gases
a) Bio ethanol
b) Bio methane
5. In ocean thermal energy conversion, the plant
pumps the deep cold sea water and do not pump the
surface sea water.
c) Bio diesel
a) True
d) Bio butanol
b) False
15. The percentage of carbondioxide in the bio
methane is ____________
6. How many types of OTEC plants are there?
a) 30-40
b) 32-43
c) 35-45
a) 1
b) 2
c) 3
d) 4
7. Closed cycle systems use the fluid having
___________
13. The open cycle system produces ___________
water.
a) Desalinated
a) High boiling points
b) Impure
b) Low boiling points
c) Contaminated
c) High viscosity
d) Chlorinated
d) low viscosity
14. In _________ method the sea water enters a
vacuum chamber and flash evaporated.
8. Warm surface sea water is pumped through a
____________ to vaporise the fluid.
a) Closed cycle system
a) Heat exchanger
b) Open cycle system
b) Generator
c) Hybrid OTEC
c) Evaporator
d) Neither closed nor open system
d) Condenser
15. Depending on the embodiment ____________
technique generate power from hydro electric turbine.
9. The heat exchanger ___________ the vapour into a
liquid which is recycled.
a) Closed cycle
a) Condenses
b) Open cycle
b) Heats
c) Hybrid
c) Cools
d) Steam lift pump
d) Evaporates
10. Open cycle OTEC uses ________ surface water
directly to make electricity.
a) Hot
b) Warm
c) Cool
d) Icy
11. In some cases, the steam drives the low pressure
turbine attached to the electrical generator.
a) True
b) False
12. The steam leaves the _______
a) Salts
b) Aluminium
c) Copper
d) Silver