Unit 5: Energy Resources (BOSEM)
- What are the primary requirement for industrialisation and rising of standard of living in a country?
The availability of affordable and reliable energy resources is the primary requirement for industrialisation and rising of standard of living in a country.
- What are the different types of energy resources?
Energy resources are classified into conventional and non-conventional energy resources.
- What are the conventional and non-conventional energy resources?
Conventional sources of energy are those which have been since a long time. The non-conventional sources of energy are those which are to come into common use.
- State the difference between conventional and non-conventional energy resources.
- Conventional sources of energy are those which have been since a long time.
Whereas non-conventional sources of energy are those which are to come into common use.
- The energy resources of conventional sources include – firewood, cattle dung cake, coal, petroleum, natural gas, both thermal and hydel electricity and atomic energy. Con-conventional sources include, solar, wind, tidal, geothermal and biogas industry.
- Among the conventional sources of energy, fossil fuels are expensive to prospect, extract and process while non-conventional sources are inexpensive once machinery for harnessing them is installed.
- Name the important conventional sources of energy.
Among the conventional sources of energy, coal, petroleum, electricity and atomic energy are important.
- Why coal is called as Black Gold?
Coal provides a substantial part of the nation’s energy needs. Not only being the major industrial source of power, it is also used as raw material for a large number of industries. Hence, coal is known as Black Gold.
- Explain the formation of coal.
Coal is very useful as it gives out heat as it burns. In those places where layer of coals are found today was once a dense forest about 300 million years age. As the older trees and plants died, dead vegetation decomposed on the swampy forest floors. In course of time, it formed a thick layer of peat and with the deposition of mud and sand compressed into sedimentary rocks and the peat hardened into coal.
- What are the types of coal?
The types of coal are – Anthracite, Bituminous, Lignite and Peat
- Why the Anthracite type of coal is considered to be the best quality among all the coal?
Anthracite is considered to be the best quality hard coal as it contains over 80 percent of carbon.
- Name the type of coal which is widely used in India.
Bituminous is widely used in India which contain 60 to 80 percent carbon
- Which type of coal is known as brown coal?
Lignite type of coal is known as brown coal which contain 60 percent carbon
- Which type of coal is the lowest grade?
Peat is the lowest grade among all the coal which contain only 50 percent of carbon
- Name three important coal field in India
Raniganj, Jharia and Bokaro
- Name three states where coal mining is found in North East India.
Assam, Arunachal Pradesh and Meghalaya
- Which mineral is known as liquid gold
Petroleum is known as Liquid Gold
- In which year the Oil and Natural Gas Commission was set up?
Oil and Natural Gas Commission was set up in 1956.
- Name the first oil producing region or place in India or before 1956.
Digboi in Assam was the only oil producing region in the country or the first oil producing centre in India
- Name the first mobile offshore oil drilling platform
In Mumbai High Sagar Samrat is the first mobile offshore oilfield platform helping to drill oil lying below the bottom of the sea.
- Why the India imports huge quantities of crude oil from other countries?
India produced about 37.7 million tonnes of crude petroleum in 2004-2005, but it could not meet the huge domestic requirements. Hence, India imports huge quantities of crude oil from other countries.
- Why using of Natural gas is encouraged instead of liquid fuel?
The emission of carbon dioxide into the atmosphere is quite low while using natural gas. Hence, use of compressed natural gas (CNG) for vehicles in place of liquid fuel has been encouraged and is gaining wide popularity in the country.
- Name the company which is responsible for processing, transporting and marketing the natural gas in India.
Gas Authority of India Limited (GAIL) is responsible for processing, transporting and marketing the natural gas in India.
- How the hydro-electricity does is generated?
Hydro-electricity is generated by driving turbines using fast- flowing perennial water.
- How the thermal electricity does is generated?
Thermal electricity is generated by using coal, petroleum and natural gas.
- How the nuclear electricity does is generated?
Nuclear energy is generated by altering the structure of atoms. Much heat energy is released when such an alteration (atomic fission) is made and that heat is used to generate electric power.
- What are the main minerals used in generating electricity in thermal electricity?
The main minerals used in generating electricity in thermal electricity are the coal, petroleum and natural gas.
- Name the main mineral or materials used in generating electricity in nuclear electricity.
Uranium and Thorium are the main mineral used for the generation of nuclear power.
- Name three states where the Uranium are found.
Uranium are found in Jharkhand, Rajasthan and Tamil Nadu.
- Where do we find thorium in India?
Thorium is obtained mainly from the monazite sand of Kerala beach. It is also found in Gaya (Bihar), Nellore (Andhra Pradesh)
- Name the place where the first nuclear power station was set up in India.
The first Nuclear power station of India was set up at Tarapur in Maharashtra.
- How many nuclear power plants are there in India?
There are 17 nuclear power plants in India
- Name two effective processes for tapping solar energy.
The two effective processes of tapping solar energy are photovoltaic and solar thermal technology
- How the solar energy generate electricity?
Photovoltaic technology converts sunlight directly into electricity.
- What is the main used of solar thermal technology?
Solar thermal technology is being employed in heating and cooling applications.
- Name the largest solar plant in India
The largest solar plant is located at Madhapur near Bhuj in Gujarat.
- How the wind energy generates electricity?
The kinetic energy of wind through turbines is converted into electrical energy. The permanent wind like trade winds, Westerlies and periodic winds like land and sea breeze are the main sources.
- Name two important states where wind energy is produced.
Tamil Nadu and Gujarat is the two main producer of wind energy in India
- Where do we find the Tidal energy plant in India?
National Hydro Power Corporation sets up a tidal energy plant of 900 MW at Gulf of Kachchh in Gujarat.
- What is geothermal energy?
Geothermal energy refers to the heat and electricity produced by using heat from the interior of the earth.
- Name two experimental projects on geothermal energy in India.
The two experimental projects which have been set up to harness geothermal energy are the Parvati valley in Himachal Pradesh and the other at Puga valley in Ladakh.
- How many hot springs and favourable hot sites for producing geothermal electricity are found in India?
There are 115 hot springs and 350 favourable site for producing geothermal electricity.
The biogas using cattle dung are known as Gobar gas plants.
- Why it is necessary to conserve energy in India?
Every sector of the national economy need energy as it is the basic requirement for economic development. At the current rate of consumption, the known reserves of these minerals will last only 30-40 years. Hence, energy conservation is an urgent need to develop a sustainable path of energy development in India.
- What are the steps or guidelines for the conservation of energy?
The steps or guidelines for the conservation of energy are – [learn any five points]
- To develop alternative energy sources and utilise the present sources of energy judiciously.
- To use energy efficient engines in vehicles.
- To improve the efficiency of power plants
- To use power saving devices at homes and in industries.
- To make public transport dependable so that use of individual vehicles be discouraged.
- To make greater use of hydel power and non-conventional sources of energy.