MCQ on Sources of Energy

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MCQ on Sources of Energy for Students

Biogas is a better fuel than animal dung cake because

(a) biogas has a lower calorific value.

(b) animal dung cake has a high calorific value

(c) biogas bums smoke and leave no residue

(d) biogas is used as a fuel for cooking only whereas dung cake can be used for cooking, illuminant the lanterns.

Option c – biogas bums smoke and leave no residue

Which of the following organism produces biogas from cow drug sherry in the biogas plant?

(a) aerobic bacteria

(b) anaerobic bacteria

(c) prolozoa

(d) fungi

Option b – anaerobic bacteria

The wind is caused due to

(a) uneven heating of the earth’s surface

(b) rotation of the earth

(c) local conditions

(d) All of these

Option d – All of these

What are the disadvantage of solar energy

(a) A large surface area is required to collect the solar

(b) Daily average of solar energy varies from 4 to 7 kwh/m²

(c) Highly hazardous toxic material is used in the manufacturing of solar devices.

(d) All of the above are disadvantages.

Option d – All of the above are disadvantages

The temperature inside the solar cooker ranges from

(a) 500-100°C

(b) 100-140°C

(c) 150-200°C

(d) 70-80°C

Option b – 100-140°C

The use of reflectors in the solar cooker is to

(a) Decrease efficiency

(b) create greenhouse effect

(c) increase efficiency

(d) none of these

Option c – increase efficiency

Solar cells are made of

(a) germanium

(b) silicon

(c) Silver

(d) aluminium

Option b – silicon

The material used for the interconnection of the solar cells in the solar panel is

(a) silicon

(b) Silver

(c) aluminium

(d) copper

Option b – Silver

A solar panel is made by combining an arrangement

(a) solar concentrator

(b) solar cookers

(c) solar cells

(d) solar chimney

Option c – solar cells

Tidal energy is a farm of energy obtained from the

(a) the motion of surface water in ponds

(b) ocean in the form of tidal waves

(c) tides occur in the river water

(d) the motion of the wave in the sea

Option b – ocean in the form of tidal waves

Select the correct order of energy conversion in thermal power plant

(a) Meal – mechanical energy energy – electrical energy

(b) Chemical – Mechanical energy energy – electrical energy

(c) Solar – electrical energy energy – mechanical energy

(d) chemical – solar energy energy – heat energy

Option b – Chemical – Mechanical energy energy – electrical energy

Hydropower plant are located in the

(a) desert area

(b) plane area

(c) hilly terrains

(d) none-of above

Option c – hilly terrains

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

Option a – is more in rainy season since damp air would mean more air mass hitting the blades

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

Option c – Glass sheet

Select the important factor for the site selection of a thermal power plant.

(a) Distance from the populated area

(b) Availability of fuel

(c) Availability’ of water

(d) Cost of plant

Option c – Availability’ of water

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)

Option d – both (a) and (b)

The working fluid in ocean thermal power plant is

(a) Volatile liquid like ammonia

(b) Petrol

(c) Charcoal

(d) Liquified petroleum gas

Option a – Volatile liquid like ammonia

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

Option c – Molten lava on the surface of earth

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

Option d – low energy protons only

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.

Option a – Potential energy possessed by stored water is converted into electricity

Which is the ultimate source of energy?

(a) Water

(b) Sun

(c) Uranium

(d) Fossil fuels

Option b – Sun

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

Option c – Solar energy

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

Option b – temperature difference at different levels in the ocean

The major problem in harnessing nuclear energy is how to

(a) split nuclei

(b) sustain the reaction

(c) dispose off spent fuel safely

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(d) convert nuclear energy into electrical energy

Option c – dispose off spent fuel safely

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

Option a – narrow opening to the sea

Which of the following bacteria is found in Ganga water?

(a) Coliform bacteria

(b) Streptococcus bacteria

(c) Staphylococcus bacteria

(d) Diplococcus bacterial

Option a – Coliform bacteria

Water cycle gets complicated because

(a) water dissolves many minerals and nutrients.

(b) some of the water that falls as rain seeps into the soil and become part of underground reservoir of fresh water.

(c) water is used by terrestrial animals and plants for carrying their life processes.

(d) Both (2) and (3)

Option d – Both (2) and (3)

Nitrogen fixing bacteria are usually found in

(a) soil

(b) atmosphere

(c) some species of dicot plants and the root-nodules present in the roots of legumes

(d) None of these

Option c – some species of dicot plants and the root-nodules present in the roots of legumes

Kulhs are irregation canals of

(a) Rajasthan

(b) Bihar

(c) Himachal Pradesh

(d) Karnataka

Option c – Himachal Pradesh

Expansion of certain parts of rocks due to heat during the day and contraction at night lead to

(a) formation of cracks in the rocks

(b) breaking of rocks

(c) formation of cracks and ultimately the huge rocks breaking into smaller pieces

(d) formation of soil directly

Option c – formation of cracks and ultimately the huge rocks breaking into smaller pieces

Water is helpful in formation of soil as

(a) it enters into the cracks formed due to uneven heating and then freezes inside the rocks.

(b) flowing water wears away even hard rocks.

(c) fast flowing water crushes big and small rocks into smaller particles while flowing downstream.

(d) All of these

Option d – All of these

Besides water ……… also erode rocks down and carry sand from one place to other.

(a) the sun

(b) strong winds

(c) living organism

(d) plants

Option b – strong winds

Forests are far away from the cities and we hardly ever visit them, still they are important as

(a) many resources are available in the forests.

(b) bio-diversity in the forests help in maintaining ecological balance.

(c) local people use the forests for grazing their animals.

(d) those listed above are just a few advantages of forests.

Option d – those listed above are just a few advantages of forests

It is important to make small check dams across the flooded gullies because they (i) hold water for irrigation. (ii) hold water and prevent soil erosion. (iii) recharge ground water. (iv) hold water permanently.

(a) (i) and (iv)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (ii) and (iv)

Option b – (ii) and (iii)

The laws, rules and regulations will be more effective in allowing everyone reap the benefits of development

(a) if we adjust our requirement individually

(b) if we adjust our requirement collectively

(c) if we adjust our requirement both individually and collectively.

(d) even if we do not adjust our requirements

Option c – if we adjust our requirement both individually and collectively

Management of resources has become necessary so that

(a) the resources are used with long term perspectives.

(b) the resources are distributed equitably between rich and poor.

(c) the wastes are disposed in safe and environment friendly manner.

(d) All of these

Option d – All of these

Nitrogen content of biosphere remains constant due to

(a) nitrogen fixation

(b) nitrogen cycle

(c) industrial pollution

(d) absorption of nitrogen

Option b – nitrogen cycle

Breaking down of rocks at or near the surface of the Earth by various physical, chemical or biological processes results in the formation of ……….

(a) nutrients

(b) soil

(c) minerals

(d) water

Option b – soil

Cycling of elements in an ecosystem is called

(a) chemical cycle

(b) geochemical cycle

(c) biogeochemical cycle

(d) geological cycle

Option c – biogeochemical cycle

All organism require water to stay alive because

(a) all cellular processes take place in a water medium.

(b) biochemical reactions inside the body take place in aqueous medium.

(c) substances are transported from one part of the body to other parts in a dissolved form.

(d) All of these

Option d – All of these

Sustainability and diversity of life is dependent on

(a) availability of water alone

(b) not only temperature, nature of soil but also the availability of water

(c) nature of soil

(d) temperature

Option b – not only temperature, nature of soil but also the availability of water

Nitrogen cycle involves bacteria capable of changing proteins to ammonia called as

(a) bacteria of decay

(b) denitrifying bacteria

(c) nitrogen fixing bacteria

(d) ammonifying bacteria

Option d – ammonifying bacteria

Phosphorus cycle is

(a) gaseous cycle

(b) perfect cycle

(c) imperfect cycle

(d) partly gaseous and partly sedimentary

Option c – imperfect cycle

The important message conveyed by the ‘Chipko Movement’ is

(a) to involve the community in forest conservation efforts.

(b) the ignore the community in forest conservation efforts.

(c) to cut down forest trees for development activities.

(d) government agencies have the unquestionable right to order destruction of trees in forests.

Option a – to involve the community in forest conservation efforts

The most appropriate definition of a natural resource is that it is a substance/commodity that is

(a) present only on land.

(b) a gift of nature which is very useful to mankind.

(c) a man-made substance placed in nature.

(d) available only in the forest.

Option b – a gift of nature which is very useful to mankind

Khadins, Bundhis, Ahars and Kattas are ancient structures that are examples for

(a) grain storage

(b) wood storage

(c) water harvesting

(d) soil conservation

Option c – water harvesting

Ignorance of local knowledge and local needs in forest management practices has led to

(a) conversion of vast tracts of forests to mono culture of pine, teak and eucalyptus

(b) extinction of wild life and several species

(c) Both (1) and (2)

(d) None of these

Option c – Both (1) and (2)

Construction of big dams, though useful still draws flak from society

(a) displacement of large number of peasants and tribes without compensation lead to social problems.

(b) expenditure of huge amounts of public money without proportional benefits cause economic problems.

(c) deforestation and loss of biodiversity result in environmental problems.

(d) All of these

Option d – All of these

In our country, there are attempts to increase the height of serveral existing dams like Tehri and Almati, dams across Narmada. Choose the correct statements among the following that are a consequence of raising the height of dams (i) Terrestrial flora and fauna of the area is destroyed completely. (ii) Dislocation of people and domestic animals living in the area. (iii) Valuable agricultural land may be permanently lost. (iv) It will generate permanent employment for people.

(a) (i) and (ii)

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

(c) (ii) and (iv)

(d) (i), (iii) and (iv)

Option b – (i), (ii) and (iii)

The three R’s referred to in context to save the environment are

(a) Reduce, Recycle and Reuse

(b) Refuse, Reduce and Reuse

(c) Remain, Relent and Repent

(d) Reinforce, Repair and Render

Option a – Reduce, Recycle and Reuse

The problems for criticism about large dams are that they

(a) displace a large number of peasants and tribles without proper rehabilitation

(b) swallow up huge amounts of public money without the generation of proportionate benefits

(c) ontribute enormously to deforestation and loss of biological diversity

(d) all of the above.

Option c – ontribute enormously to deforestation and loss of biological diversity

In our country, vast tracts of forests are cleared and a single species of plant is cultivated. This practice promotes

(a) biodiversity in the area

(b) monoculture in the area

(c) growth of natural forest

(d) preserves the natural ecosystem in the area

Option b – monoculture in the area

Expand the abbreviation GAP

(a) Governmental Agency for Pollution Control

(b) Gross Assimilation by Photosynthesis

(c) Ganga Action Plan

(d) Governmental Agency for Animal Protection

Option c – Ganga Action Plan

Which one of the following resources is least developed due to economic factors as well as inadequate knowedge?

(a) ocean resource

(b) mineral resource

(c) forest resource

(d) soil resource

Option a – ocean resource

Chipko Andolan (Movement) which was started in 1980 in Garhwal/Himalayas (Gopeshwar) near Alaknanda river was for the first time initiated by

(a) hander Prasad Bhat

(b) Sunder Lal Bahuguna

(c) Baba Amte

(d) Vinova Bhave

Option b – Sunder Lal Bahuguna

The important message conveyed by the Chipko Movement’ is

(a) to involve the community in forest conservation efforts

(b) to ignore the community in forest conservation efforts

(c) to cut down forest trees for developmental activities

(d) government agencies have the unquestionable right to order destruction of trees in forests

Option a – to involve the community in forest conservation efforts

A renewable source of energy is

(a) Petroleum

(b) oal

(c) Nuclear fuel

(d) Trees

Option d – Trees

Which gas is mainly responsible for the depletion of ozone layer?

(a) Oxygen

(b) FC

(c) Nitrogen dioxide

(d) All of them

Option b – FC

Overuse of resources leads to :

(a) floods and droughts

(b) energy crisis

(c) imbalance in biological diversity

(d) all the above

Option d – all the above

Some organisms are sensitive to different levels of air pollution and are used as pollution – indicators. Suggest which among the following fits into the category.

(a) Fungi

(b) Fresh water algae

(c) Bacteria

(d) Lichens

Option d – Lichens

The biosphere utilizes :

(a) geothermal energy

(b) solar energy

(c) tidal energy

(d) atomic energy

Option b – solar energy

Maintaining ecological balance in future will mainly depends on :

(a) nature’s own process of changes and interaction

(b) adaptation of all living species to changes in climate

(c) man’s caution and ability to allow nature’s own balance to continue

(d) man’s ability to maintain and develop species according to his needs.

Option c – man’s caution and ability to allow nature’s own balance to continue

Pick one the gas among these, causing green house effect.

(a) SO₂

(b) Nitrogen (N₂)

(c) O2

(d) CO₂

Option d – CO₂

The Narmada Bachao Andolan was headed by

(a) Mother Teresa

(b) Arundhati Roy

(c) Anita Desai

(d) None of these

Option b – Arundhati Roy

Which is not an endangered animal?

(a) Asiatic lion

(b) Great Indian vulture

(c) King kobra

(d) Cats

Option d – Cats

Throwing plastics and glass bottles will lead to

(a) Soil pollution

(b) No growth of flora in soil

(c) water pollution

(d) both (a) and (b)

Option d – both (a) and (b)

To know the quality of water we check

(a) BOD (Biological oxygen demand) and DO (Dissolved oxygen)

(b) PH

(c) both (a) and (b)

(d) None of the above

Option c – both (a) and (b)

Maximum air which we breathe is present at

(a) Troposphere

(b) Stratosphere

(c) Ionosphere

(d) Mesosphere

Option a – Troposphere

Nitrogen fixation is conversion of

(a) Nitrogen → Ammonia

(b) Nitrogen → Nitrates

(c) Nitrogen → Amino acid

(d) Both (a) and (b)

Option d – Both (a) and (b)

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