Q. Energy can neither be created nor destroyed but still everybody discuss about the energy crisis because
-
(A)
Energy transform into different form continuously.
-
(B)
Usable form of energy is dissipated to the surroundings in less usable forms.
-
(C)
Energy is consumed and cannot be used again.
-
(D)
All of these
β
Correct Answer: (D)
All of these
Q. An ideal source of energy should have
-
(A)
higher calorific value
-
(B)
easy transportability
-
(C)
easy accessibility
-
(D)
All of these
β
Correct Answer: (D)
All of these
Q. Fossile fuels are
-
(A)
non-renewable source of energy
-
(B)
renewable source of energy
-
(C)
both (a) and (b)
-
(D)
Neither (a) nor (b)
β
Correct Answer: (A)
non-renewable source of energy
Q. Dead organisms are transformed into petroleum and natural gas in
-
(A)
presence of air
-
(B)
absence of air
-
(C)
presence of sunlight
-
(D)
none of the above
β
Correct Answer: (B)
absence of air
Q. Which of the following problem is associated with a burning of coal?
-
(A)
Carbon-dioxide emission
-
(B)
acid rain
-
(C)
ash with toxic metal supurity
-
(D)
all of these.
β
Correct Answer: (D)
all of these.
Q. Select the important factor for the site selection of a thermal power plant.
-
(A)
Distance from the populated area
-
(B)
Availability of fuel
-
(C)
Availabilityβ of water
-
(D)
Cost of plant
β
Correct Answer: (C)
Availabilityβ of water
Q. Hydropower plant are located in the
-
(A)
desert area
-
(B)
plane area
-
(C)
hilly terrains
-
(D)
none-of above
β
Correct Answer: (C)
hilly terrains
Q. Biogas is a better fuel than animal dung cake because
-
(A)
biogas has lower calorific value.
-
(B)
animal dung cake has high calorific value
-
(C)
biogas bums smoke and leaves no residue
-
(D)
biogas is used as a fuel for cooking only wheareas dung cake can be used for cooking, illuminant the lanterns.
β
Correct Answer: (C)
biogas bums smoke and leaves no residue
Q. Which of the following organism produces biogas from cow drug sherry in the biogas plant?
-
(A)
aerobic bectria
-
(B)
anaerobic bectria
-
(C)
prolozoa
-
(D)
fungi
β
Correct Answer: (B)
anaerobic bectria
Q. Wind is caused due to
-
(A)
uneven heating of earthβs surface
-
(B)
rotation of earth
-
(C)
local conditions
-
(D)
All of these
β
Correct Answer: (D)
All of these
Q. What are the disadvantage of solar energy
-
(A)
A large surface area is required collect the solar
-
(B)
Daily average of solar energy varies from 4 to 7 kwh/m^2
-
(C)
Highly hazardous toxic material is used in the manufacturing of solar device.
-
(D)
All of the above are disadvantages.
β
Correct Answer: (D)
All of the above are disadvantages.
Q. The temperature inside the solar cooker ranges from
-
(A)
500-100Β°C
-
(B)
100-140Β°C
-
(C)
150-200Β°C
-
(D)
70-80Β°C
β
Correct Answer: (B)
100-140Β°C
Q. The use of reflector in the solar cooker is to
-
(A)
Decrease efficiency
-
(B)
create green house effect
-
(C)
increase efficiency
-
(D)
none of these
β
Correct Answer: (C)
increase efficiency
Q. Solar cells are made of
-
(A)
germanium
-
(B)
silicon
-
(C)
silver
-
(D)
aluminium
β
Correct Answer: (B)
silicon
Q. The material used for interconnection the solar cells in the solar panel is
-
(A)
silicon
-
(B)
silver
-
(C)
aluminium
-
(D)
copper
β
Correct Answer: (B)
silver
Q. A solar panel is made by combining in an arrangement
-
(A)
solar concentrator
-
(B)
solar cookers
-
(C)
solar cells
-
(D)
solar chimney
β
Correct Answer: (C)
solar cells
Q. Tidal energy is a farm of energy obtained from the
-
(A)
motion of surface water in ponds
-
(B)
ocean in the form of tidal waves
-
(C)
tides occurs in the river water
-
(D)
motion of the wave in sea
β
Correct Answer: (B)
ocean in the form of tidal waves
Q. Tidal energy is harnessed by constructing a dam across
-
(A)
narrow opening to the sea
-
(B)
wide opening to the sea
-
(C)
the river in hilly trains
-
(D)
the river in plane areas
β
Correct Answer: (A)
narrow opening to the sea
Q. Wave energy is caused due to
-
(A)
strong winds blowing across the sea
-
(B)
kinetic energy possessed by huge waves near the sea shore
-
(C)
potential energy possessed by the stored water
-
(D)
both (a) and (b)
β
Correct Answer: (D)
both (a) and (b)
Q. The working fluid in ocean thermal power plant is
-
(A)
Volatile liquid like ammonia
-
(B)
petrol
-
(C)
charcoal
-
(D)
liquified petroleum gas
β
Correct Answer: (A)
Volatile liquid like ammonia
Q. Geothermal energy is
-
(A)
Heat energy in the interior of earth
-
(B)
energy of molten mars exists in the farm of magma inside the earth.
-
(C)
molten lava on the surface of earth
-
(D)
energy obtained from solar thermal electric plants
β
Correct Answer: (C)
molten lava on the surface of earth
Q. U-235 will undergo fission by
-
(A)
low energy neutrons only
-
(B)
high energy neutrons only
-
(C)
medium energy neutrons
-
(D)
low energy protons only
β
Correct Answer: (D)
low energy protons only
Q. In a hydropower plant
-
(A)
Potential energy possessed by stored water is converted into electricity
-
(B)
Kinetic energy possessed by stored water is converted into potential energy
-
(C)
Electricity is extracted from water
-
(D)
Water is converted into steam to produce electricity.
β
Correct Answer: (A)
Potential energy possessed by stored water is converted into electricity
Q. Which is the ultimate source of energy?
-
(A)
Water
-
(B)
Sun
-
(C)
Uranium
-
(D)
Fossil fuels
β
Correct Answer: (B)
Sun
Q. Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
-
(A)
Nuclear energy
-
(B)
Thermal energy
-
(C)
Solar energy
-
(D)
Geothermal energy
β
Correct Answer: (C)
Solar energy
Q. Ocean thermal energy is due to
-
(A)
energy stored by waves in the ocean
-
(B)
temperature difference at different levels in the ocean
-
(C)
pressure difference at different levels in the ocean
-
(D)
tides arising out in the ocean
β
Correct Answer: (B)
temperature difference at different levels in the ocean
Q. The major problem in harnessing nuclear energy is how to
-
(A)
split nuclei?
-
(B)
sustain the reaction?
-
(C)
dispose off spent fuel safely?
-
(D)
convert nuclear energy into electrical energy?
β
Correct Answer: (C)
dispose off spent fuel safely?
Q. Which part of the solar cooker is responsible for green house effect?
-
(A)
Coating with black colour inside the box
-
(B)
Mirror
-
(C)
Glass sheet
-
(D)
Outer cover of the solar cooker
β
Correct Answer: (C)
Glass sheet
Q. The power generated in a windmill
-
(A)
is more in rainy season since damp air would mean more air mass hitting the blades
-
(B)
depends on the height of the tower
-
(C)
depends on wind velocity
-
(D)
can be increased by planting tall trees close to the tower
β
Correct Answer: (A)
is more in rainy season since damp air would mean more air mass hitting the blades
Q. Choose the correct statement
-
(A)
Sun can be taken as an inexhaustible source of energy
-
(B)
There is infinite storage of fossil fuel inside the earth
-
(C)
Hydro and wind energy plants are non-polluting
-
(D)
Waste from a nuclear power plant can be easily disposed off
β
Correct Answer: (C)
Hydro and wind energy plants are non-polluting
Q. Unit of calorific value of a substance is
-
(A)
Kcal
-
(B)
Joules
-
(C)
J kg
-
(D)
J/kg
β
Correct Answer: (D)
J/kg
Q. Solar energy can be directly converted to elec-trical energy by which of the following de-vices?
-
(A)
solar cooker
-
(B)
solar heater
-
(C)
solar cell
-
(D)
solar geyser
β
Correct Answer: (C)
solar cell
Q. Which of the following gases is the main con-stituent of natural gas?
-
(A)
Methane
-
(B)
Ethane
-
(C)
Propane
-
(D)
Butane
β
Correct Answer: (A)
Methane
Q. Ocean thermal energy is produced due to
-
(A)
pressure difference at different levels in the ocean.
-
(B)
temperature difference at different levels in the ocean.
-
(C)
energy stored by waves in the ocean.
-
(D)
tides rising out of the ocean.
β
Correct Answer: (B)
temperature difference at different levels in the ocean.
Q. One major problem in harnessing nuclear energy is
-
(A)
converting nuclear energy into electrical energy.
-
(B)
sustaining the reaction.
-
(C)
splitting the nuclei.
-
(D)
disposing off spent fuel easily.
β
Correct Answer: (D)
disposing off spent fuel easily.
Q. Spent slurry (Bio-waste after obtaining biogas) is used as
-
(A)
fuel
-
(B)
manure
-
(C)
food for livestock
-
(D)
used again for generating biogas
β
Correct Answer: (B)
manure
Q. A device in which electricity is produced by the process of controlled nuclear fission reaction is called
-
(A)
nuclear chain reaction
-
(B)
hydel power plant
-
(C)
nuclear reactor
-
(D)
thermal power plant
β
Correct Answer: (C)
nuclear reactor
Q. Which element is used in solar cells?
-
(A)
Carbon
-
(B)
Silicon
-
(C)
Phosphorous
-
(D)
Sulphur
β
Correct Answer: (B)
Silicon
Q. Which of the following is the ultimate source of energy?
-
(A)
Water
-
(B)
Sun
-
(C)
Fossil fuels
-
(D)
Uranium
β
Correct Answer: (B)
Sun
Q. Biogas is formed in the
-
(A)
presence of air only
-
(B)
presence of water only
-
(C)
absence of air only
-
(D)
presence of water and absence of air
β
Correct Answer: (D)
presence of water and absence of air
Q. The variety of coal which has the highest car-bon content
-
(A)
Anthracite
-
(B)
Peat
-
(C)
Bituminous
-
(D)
Lignite
β
Correct Answer: (A)
Anthracite
Q. A good fuel should possess
-
(A)
high ignition temperature
-
(B)
moderate ignition temperature
-
(C)
high calorific value
-
(D)
both high calorific value and moderate ignition temperature
β
Correct Answer: (D)
both high calorific value and moderate ignition temperature
10th Class mcqs download, 10th Class mcqs pdf free download, 10th Class free pdf download, 10th Class mcq questions, 10th Class ncert book pdf download,