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Worksheetssources of energy
Total questions: 20
Worksheet time: 10mins
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilization.
nuclear energy
geothermal energy
thermal energy
solar energy
biogas is formed in the
in the presence of water only
in the presence of water and in absence of oxygen
in the presence of oxygen only
in the absence of water and n absence of oxygen
The working fluid in ocean thermal power plant is
volatile liquid like ammonia
petrol
liquified petroleum gas
charcoal
The value of solar constant is
1.8kW/m2
1.6kW/m2
1.4kW/m2
1.2kW/m2
Tidal energy is harnessed by constructing
bridge
road
pipe
dam
The working of atom bomb is based on the principal of
conversion of wave energy into electrical energy
release of energy in nuclear fission
conversion of mechanical energy into electrical energy
In a nuclear fission reaction the mass of the original nucleus is
just little more than the sum of the masses of the individual product
just equal to the sum of the masses of the individual product
just little less than the sum of the masses of the individual product
not comparable with individual masses of the product
Which Fuel is used in thermal power plants. -
A) WATER
B) URANIUM
C) BIOMASS
D) FOSSIL FUEL
In a hydro power plant
potential energy possessed by stored water is converted into electricity
kinetic energy possessed by stored water is converted to potential energy
electricity is extracted from water
water is converted into steam to produce electricity
The largest wind energy farm is established in
Chennai
Madurai
Kanyakumari
Kalpakkam
Assertion: Wind energy farms cannot be established every where.
Reason: The wind energy farms can be established only at those places where wind blows for most part of the year
Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
The Assertion and the Reason are . correct but the Reason is not the correct explanation of the Assertion.
Assertion is true but the Reason is false.
The statement of the Assertion is false but the Reason is true.
which of the following is an renewable energy source?
coal
petroleum
wind energy
national gas
The main constituent of biogas is
methane
hydrogen
hydrogen sulphide
carbon dioxide
The most common material used for making solar cell is
aluminum
bronze
magnalium
silicon
What are the disadvantage of solar energy
A large surface area is required collect the solar
Highly hazardous toxic material is used in the manufacturing of solar device.
It is expensive
All of the above are disadvantages.
Which is the most popular kitchen fuel in India?
LPG
Kerosene
Coal
Firewood
Acid rain happens because
Sun heats up the upper layer of the atmosphere
burning of fossil fuels releases oxides of carbon ,nitrogen and Sulphur in the atmosphere
electrical charges are produced due to friction amongst clouds
earth atmosphere contains acids
Most of the sources of energy we use represent stored solar energy. Which of the following is ultimately not derived from the Sun’s energy?
geothermal energy
wind energy
nuclear energy
bio-mass.
Which of the following is more environment friendly
burning of coal
burning of fire wood
burning of charcoal
burning of diesel
Assertion: coke is a better fuel than coal
Reason: burning of coke cause air pollution
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of the A
A is true but R is false
A is false but R is true
