Environment - Energy & Alternative Sources-New

8/21/2019 Environment - Energy & Alternative Sources-New

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Unit IV: Energy &

Alternative Sources


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Interactive Q&A Session

1. Identify the renewable source of energy from the following:

a. Coal

b. Wind power

c. Uranium

d. Oil

Ans: (b)

2. Which of the following is not a fossil fuel:

a. Gas

b. Oilc. Peat

d. Uranium

Ans: (d)


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3. Coal denotes:a. Solid fossil fuel obtained from partial degradation of plants

b. Gaseous fuel obtained from underground strata

c. Volatile matter obtained by anaerobic decay of marine plant and animals

d. All of the above

Ans: (d)

4. Coal is a dirty fuel to burn mainly because it emits:

a. O2b. N2c. H2d. SO2

Ans: (d)


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5. Ash is a product of combustion of:

a. Crude petroleum

b. Coal

c. Uranium

d. None of the above

Ans: (b)

6. Natural gas consists mainly of:

a. Ethane

b. Propanec. Butaned. Methane

Ans: (d)


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7. LPG is a mixture of:

a. N2& H2S

b. CO2 & N2c. Propane and butane

d. Methane and ethane

Ans: (c)

8. The most important fuel used by nuclear power plants is:

a. 235U

b.238

Uc. 245Ud. 248U

Ans: (a)


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9. Nuclear fission reaction involves:

a. Atoms of two elements combining to form a heavier element

b. Atoms splitting into smaller fragmentsc. Heating of atoms to radiate energy


Ans: (b)

10. The atom bomb in a nuclear explosive is based on:

a. Nuclear fission reaction

b. Nuclear hydrogen reactionc. Nuclear fusion reaction

d. All of the above

Ans: (a)


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11. The Chernobyl disaster in 1986 was an accident in a:

a. Leakage in a gas plant

b. Petroleum industryc. Nuclear power plant


Ans: (c)

12. Which of the following is a hazard of a Nuclear Power Plant:

a. Accident risk when tankers containing fuel cause spills

b. Radioactive waste of the plant remains highly toxic for centuriesc. Release of toxic gases during processing


Ans: (b)


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13. Nuclear fusion reaction occurs in:a. The sun

b. Starsc. Hydrogen bomb

d. All of the above

Ans: (d)

14. Nuclear fusion reaction holds the promise of being a better source of energythan nuclear fission reaction because:

a. The fuel for fusion is almost infinitely available

b. It has minimal pollution problemsc. High energy output/unit mass

d. All of the above

Ans: (d)


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15. Solar energy is an ideal energy source because of:

a. Unlimited supply

b. No air and water pollutionc. Free of by-products

d. All of the above

Ans: (d)

16. A solar cell generates electricity from sunlight by:

a. Flow of charge carriers

b. Flow of heatc. Flow of energy

d. Flow of electrolyte

Ans: (a)


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17. Choose the sequence of production of electricity from hydrogen:i. Electrolysis of water

ii. Performing a fuel cell reaction

iii. Storage of hydrogena. (i), (ii) and (iii)

b. (i), (iii) and (ii)

c. (ii), (iii) and (i)

d. (ii), (i) and (iii)

Ans: (b)

18. The only disadvantage of a hydrogen energy source is:

a. Takes more energy to produce hydrogen than the energy that could be obtained from it

b. Causes air and water pollutionc. Releases toxic by products

d. Hazardous effects due to risks of leakage

Ans: (a)


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19. Biomass power generation uses:

a. Crops

b. Animal dung

c. Wood

d. All of the above

Ans: (d)

20. Production of biomass energy mainly involves:

a. Release of methane

b. Water pollutionc. Soil damage

d. SO2

Ans: (a)


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21. Biogas fuel is produced by:

a. Microbial activity

b. Harvesting crops

c. Both a. & b.

d. Neither a. & b.

Ans: (a)

22. Dams and reservoirs mainly focus on:

a. Power production

b. Irrigation and flood controlc. Recreation


Ans: (b)


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23. Dam construction leads to:

a. Irrecoverable loss of species and wild life habitat

b. Deforestation

c. Water logging

d. All of the above

Ans: (d)

24. Current annual production of coal would last for the next:

a. 200 years

b. 1000 yearsc. 25 years

d. 10 years

Ans: (a)


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25. Oil and natural gas are preferred to fossil fuels because of:

a. Easy transportation

b. Higher availability

c. Strong smell

d. All of the above

Ans: (d)

26. Nuclear fission reaction involves the bombardment of 235Uby:

a. Electrons

b. Neutronsc. Protons

d. Alpha radiation

Ans: (b)


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27. Which of them is not a constraint to harness better solar energy is:

a. Sunlight is diffused and intermittent

b. Technology is expensive

c. Non availability throughout the year

d. Pollution problem

Ans: (d)

28. The important source of EMR is:

a. Water

b. Radiant heatc. Natural gas

d. The sun

Ans: (d)


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29. The important alternative source of energy that requires research is:

a. Hydrogen production

b. Nuclear fission reaction

c. Hydropower

d. Electromagnetic radiation

Ans: (a)

30. Which of the following is considered as an alternate promising fuel?:

a. CNG

b. Kerosenec. Coal

d. Petrol

Ans: (a)


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31. Solar radiation consists of:

a. UV

b. Visible light

c. Infrared

d. All of these

Ans: (d)

32. Reduction in usage of fuels cannot be brought about by:

a. Using alternate fuels

b. Changing lifestylesc. Reducing car taxes

d. Both a. & b.

Ans: (c)


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33. Oil and gas are preferred because of:

a. Easy transportation

b. Cheap

c. Strong smell

d. All of the above

Ans: (a)

34. The Chernobyl nuclear disaster occurred in the year:

a. 1984

b. 1952c. 1986

d. 1987

Ans: (c)


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35. Which of the following is not a renewable source of energy:a. Fossil fuels

b. Solar energy

c. Tidal wave energyd. Wind energy

Ans: (a)

36. Which of the following is a disadvantage of most of the renewable energysources:

a. Highly polluting

b. High waste disposal costc. Unreliable supply

d. High running cost

Ans: (c)


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37. OTEC is an energy technology that converts:

a. energy in large tides of ocean to generate electricity

b. energy in ocean waves to generate electricity

c. energy in oceans due to thermal gradients to generate electricity

d. energy in the fast moving ocean currents to generate electricity

Ans: (c)

38. Which of the following source of energy is less eco-friendly?:

a. Biogas

b. Windc. Solar

d. Nuclear

Ans: (d)


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39. Indias position in the Bio-gas plants globally:

a. 5th

b. 2nd

c. 4th

d. 7th

Ans: (b)

40. Identify the non-renewable source of energy from the following:

a. Coal

b. Fuel cellsc. Wind power

d. Wave power

Ans: (a)


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41. Electromagnetic radiation can cause:

a. Plague

b. Cancer

c. Dengue Fever

d. Malaria

Ans: (b)

42. Wind Farms are located in:

a. River basin

b. Plain areac. Hilly area

d. Valley area

Ans: (c)


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43. Wind energy generation depends on:

a. Direction of wind

b. Velocity of wind

c. Humidity

d. Precipitation

Ans: (b)

44. With a minimum resource, maximum energy can be created by:

a. Solar radiation

b. Windc. Nuclear fuels

d. Tidal waves

Ans: (c)


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45. Direct conversion of solar energy is attained by:

a. solar photo voltaic system

b. solar diesel hybrid system

c. solar thermal system

d. solar air heater

Ans: (a)

46. In Hydropower plants, power is generated by:

a. hotsprings

b. windc. sun

d. water

Ans: (d)


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47. Hydrogen energy can be tapped through:

a. fuel cells

b. photovoltaic cells

c. gasifiers

d. heat pumps

Ans: (a)

48. Problems of Hydrogen fuel cell is:

a. Storage and Distribution

b. Availability of Hydrogenc. Creates Pollution


Ans: (a)


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49. Nuclear power is being produced from:a. Carbon-14

b. Nuclear fission

c. Petroleum combustion

d. Natural gas

Ans: (b)

50. Nuclear fusion uses the following as a fuel:

a. Carbon

b. Heliumc. Hydrogen

d. Water

Ans: (c)


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51. Which is the source of energy that can be replaced at the same rate at whichit is used?:

a. Coal

b. Petroleum

c. Oil

d. Biomass

Ans: (d)

52. Biomass consists of:

a. Lignin

b. Hemi cellulosec. Cellulose

d. All of the above

Ans: (d)


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53. Nuclear wastes is active for:a. 5 years

b. 10 years

c. 50 years

d. centuries

Ans: (d)

54. Nuclear power plant in Karnataka is located at:

a. Bhadravathi

b. Sandurc. Raichur

d. Kaiga

Ans: (d)


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55. Fossil fuels are converted into energy by:a. burning

b. cooling

c. sublimation

d. melting

Ans: (a)

56. Which place in India has experimented with tidal energy ?:

a. Goa

b.

Karnatakac. Kerala

d. Tamil Nadu

Ans: (c)


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57. Highest producer of Oil and Petroleum is:a. Middle East Countries

b. America

c. China

d. India

Ans: (a)

58. Cow dung can be used:

a. as manure

b.

for production of biogasc. as fuel

d. all of the above

Ans: (d)


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59. Biogas is a gaseous fuel composed mainly of:a. Methane and Carbon Dioxide

b. Methane and Hydrogen Sulphide

c. Methane and Carbon Monoxide


Ans: (a)

60. Molasses from the sugar industry is used to generate:

a. Biodiesel

b.

Hydrogenc. Bioethanol

d. Biomethanol

Ans: (c)


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End of Unit IV

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