CBSE Questions for Class 10 Physics Sources Of Energy Quiz 4 - MCQExams.com

Which of the following is not a limitation of hydel energy?
  • Hydel power stations are pollution free.
  • A vast reservoir is needed.
  • It leads to a loss of wildlife habitat.
  • It can be harnessed at only a few places.
Which of the following is not an advantage of hydro energy?
  • Flowing water is found everywhere. So hydro energy can be obtained easily.
  • It is a renewable source of energy.
  • It do not cause any pollution.
  • All of the above.
The energy generated by hydel projects constitutes only ___  of the total energy in the country.
  • $$50\%$$
  • $$23\%$$
  • $$60\%$$
  • $$90\%$$
As the water is released through control valves, _______ of water changed to _______.
  • Rotational energy, potential energy
  • Kinetic energy, potential energy
  • Potential energy, rotational energy
  • Rotational energy, thermal energy
Which of the following is not a purpose to build dams?
  • Prevent flooding of the rivers in the area.
  • To provide water for irrigation
  • To generate hydroelectricity.
  • None of the above.
The cost of solar cells is
  • decreasing exponentially
  • decreasing slowly
  • constant
  • increasing
Which of the following is an advantage of building dams?
  • The dams disturbs aquatic life
  • Dams lead go large scale disturbance of aquatic life
  • It disturbs the natural ecosystem
  • None
Which of the following is not a disadvantage of building large dams for generating hydroelectric power?
  • Disturbance of the natural ecosystem in the surrounding forest area
  • Disruption of the plants and animals life
  • Displacement of people on a large scale
  • None of the above
Health hazards related to nuclear radiations are:
  • causing cancer.
  • causing deformity in the body.
  • damaging the genes of a person.
  • All of the above.
Which of the following is / are disadvantage of building large dams for generating hydro electric power?
  • Due to construction of dams, lot of areas of rivers having continuous fresh flowing water, have to be cleared.
  • Number of trees have to be cut.
  • Destroys not only the plants life but also the animals and birds life dependent on them.
  • All of the above.
Construction of dams
  • Has some advantages
  • Has some disadvantages
  • Both
  • None
What precautions should be taken against nuclear radiations?
  • The radioactive elements should be kept in containers made up of thick lead walls.
  • The people working in the plants should wear special jackets and gloves made of lead linings.
  • The handling of the plants should be carried out from a distance.
  • All of the above.
Define renewable sources of energy.
  • A source whose energy supplied can be renewed is called renewable source of energy.
  • A source of energy which will exhaust in future is called renewable source of energy.
  • A natural source providing us energy which takes long time to replenish.
  • A source of energy which causes environmental pollution is called renewable source of energy.
Which of the following is not an application of wind energy?
  • Removing husk from grains
  • Propelling sail boats in rivers and seas
  • Windmills
  • Cyclones
Global warming is caused due to:
  • trapping of excessive heat due to green-house gases.
  • reflections of radiations due to green-house gases.
  • trapping of excessive heat inside the Earth.
  • population explosion.
Full form of OTEC is:
  • Ocean Thermal Energy Conversion 
  • Ocean Thermal Consumer Energy 
  • Ocean Current Thermal Energy Cycle.
  • Ocean Current Thermal Electric Plant.
Slurry is .........................
  • The mixture of animal dung in water is called slurry.
  • Dried up material obtained from animal dung is called slurry.
  • Fresh animal dung is called slurry.
  • All of the above.
What is not an effect of global warming?
  • Rising temperature in atmosphere
  • Melting of glaciers
  • Earthquakes
  • Rising sea levels
Define air pollutants.
  • Substances that escape the environment quickly and are harmful to health are called air pollutants.
  • Substances that mix up with the air and are injurious to health and causes inconvenience to animals and plants are called air pollutants.
  • Substances that helps in the growing of trees are called as air pollutants.
  • Substances that mix in clean water and cannot be easily removed are called air pollutants.
Rise of ocean level is called ________ and fall of ocean level is called ________.
  • High wave, low wave
  • Low wave, high wave
  • High tide, low tide
  • Low tide, high tide
Kinetic energy possessed by fast moving oceanic waves is called:
  • Wind energy
  • Ocean thermal energy
  • Oceanic waves energy
  • None of the above
Bioenergy is obtained from _________ energy stored in biomass.
  • chemical
  • heat
  • nuclear
  • thermal
Which of the following does not create pollution?
  • Industrial wastes
  • Burning of fossil fuels
  • Electric power station
  • Ocean Thermal Energy
The use of conventional sources of energies is not responsible for:
  • Air pollution
  • Global warming
  • Increasing oxygen levels in atmosphere
  • Green house effect
Choose the correct statement(s):
(1) Sewage can be used with gobar and agricultural waste to produce bio gas in biogas plant.
(2) The largest composition in biofuel is of methane. 
  • (1) only
  • (2) only
  • Both (1) and (2)
  • None of the above
State whether the given statement is True or False :
The energy which is used up cannot be reversed to its original state.
  • True
  • False
Biogas plant is generally made of what?
  • Bricks
  • Wood
  • Tiles
  • Plaster of Paris
Which of the following is not an example of a bio-mass energy source?
  • Wood
  • Gobar-gas
  • Agricultural wastes
  • Coal
Biogas contains _____ % methane.
  • 75-85%
  • 50-75%
  • 80-90%
  • 35-55%
How fossil fuels are formed:
  • Formed from remains of dead plants and animals under the earth
  • Formed from remains of living plants and animals under the earth
  • Formed from charcoal
  • None
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