1.
SourcePercentageCoal57.38Hydroelectricity9.03Renewable energy source11.94Gas18.77Nuclear2.28Oil0.57
2.
Adani group launches world's largest solar power plant in Tamil nadu.- The ‘world’s largest solar power plant’ with an installed capacity of 648MW was commissioned at Kamudhi in Ramanathapuram district of Tamil Nadu Set up by Adani Group, commissioned by chief minister J Jayalalithaa.
- The plant was set up on an area of around 5,000 acres at a total cost of Rs 4,550 crore. The company sourced equipment and machinery from various parts of the world to set up the plant in eight months.
- The plant comprises 3.8 lakh foundations, 25 lakh solar modules, 27,000m of structure, 576 inverters, 154 transformers and 6,000km length of cables.
3.
Solar cells are simple photovoltaic devices that convert solar energy directly into electricity and are manufactured from the second-most abundant element in the earth's crust. Name it.
Correct Answer
B. Silicon
Explanation
Silicon is the correct answer because solar cells are made from this element. Silicon is the second-most abundant element in the earth's crust and has the necessary properties to efficiently convert solar energy into electricity. It is a semiconductor material that can absorb photons from sunlight and release electrons, generating an electric current. This makes silicon an ideal choice for manufacturing solar cells, which play a crucial role in harnessing solar energy for electricity production.
4.
Biogas is a methane-rich gas formed by fermentation of animal dung, human sewage and crop residue. The advantage(s) of biogas is/are:
Correct Answer
D. All of the above
Explanation
Biogas is a methane-rich gas formed by the fermentation of animal dung, human sewage, and crop residue. It is considered a clean and smokeless fuel, making it environmentally friendly. Additionally, the slurry left behind after the production of biogas can be used as fish feed, providing a sustainable solution for waste management. Biogas has high potential in rural India, where there is a significant availability of animal dung and crop residue, making it a suitable and accessible energy source for rural communities. Therefore, all of the given advantages apply to biogas.
5.
Large amounts of solar energy is stored in the oceans and seas. The process of harnessing this energy is called:
Correct Answer
A. OTEC (ocean thermal energy conversion)
Explanation
OTEC stands for Ocean Thermal Energy Conversion, which is the process of harnessing the large amounts of solar energy stored in the oceans and seas. This technology converts the temperature difference between the warm surface water and the cold deep water into usable energy. Therefore, OTEC is the correct answer as it accurately describes the process of harnessing solar energy from the oceans and seas.
6.
A much cheaper and lighter fuel extracted from crude oil is used to adulterate petrol in the ratio 3:1 (adulterant : petrol). It causes damage to the vehicle engine, besides leading to high emission levels. Name this common adulterant of petrol that most easily escapes detection.
Correct Answer
C. NapHtha
Explanation
Naphtha is a much cheaper and lighter fuel extracted from crude oil. It is commonly used to adulterate petrol in a ratio of 3:1 (adulterant : petrol). This adulteration can cause damage to the vehicle engine and also leads to high emission levels. Naphtha is the common adulterant of petrol that most easily escapes detection.
7.
Plastic was once hailed as the wonder material but is now becoming a serious environmental and health problem due to its non-biodegradable nature. Burning of plastics, especially PVC, releases the following harmful gas into the atmosphere.
Correct Answer
A. Dioxins
Explanation
Plastics, including PVC, when burned release harmful gases called dioxins into the atmosphere. Dioxins are highly toxic and can have serious health and environmental impacts. They are persistent in nature and can accumulate in the food chain, posing a risk to human and animal health. Therefore, the burning of plastics, especially PVC, contributes to the growing environmental and health problems associated with plastic waste.
8.
The state's and citizens' responsibilities for environmental protection is enshrined in the Constitution of India in the following two articles:
Correct Answer
C. 48A and 51G
Explanation
The correct answer is 48A and 51G. These two articles in the Constitution of India outline the responsibilities of both the state and citizens for environmental protection. Article 48A states that the state shall endeavor to protect and improve the environment and safeguard the forests and wildlife of the country. Article 51G states that it shall be the duty of every citizen of India to protect and improve the natural environment including forests, lakes, rivers, and wildlife. These articles highlight the importance of environmental protection and the shared responsibility of the state and citizens in achieving this goal.
9.
A device is fitted to motor vehicles to chemically reduce some gases produced by internal combustion engines like NOx, CO, and HC into less harmful products. Name this device.
Correct Answer
A. Catalytic converter
Explanation
The device fitted to motor vehicles that chemically reduces some gases produced by internal combustion engines like NOx, CO, and HC into less harmful products is called a catalytic converter.
10.
The nodal agency for coordinating the energy conservation activities under EC act in India is:
Correct Answer
B. Bureau of Energy Efficiency
Explanation
The Bureau of Energy Efficiency is the correct answer because it is the nodal agency responsible for coordinating energy conservation activities in India under the Energy Conservation Act. The Bureau of Energy Efficiency works towards promoting energy efficiency and conservation in various sectors such as industry, buildings, and appliances. It develops and implements energy efficiency policies and programs, sets energy efficiency standards, and provides technical assistance and capacity building to promote energy conservation practices in the country.
11.
.………………..of power consumed by Incandescent Bulbs gets wasted in the form of heat.
Correct Answer
C. 85%
Explanation
Incandescent bulbs are known to be highly inefficient in converting electricity into light. They produce a significant amount of heat as a byproduct of their operation. This heat generation is a result of the inefficiency of the bulbs in converting electrical energy into light energy. Therefore, it can be inferred that a large percentage of power consumed by incandescent bulbs gets wasted in the form of heat. The correct answer, 85%, reflects this high level of wastage.
12.
Which one is not in National Action Plan on Climate Change?
Correct Answer
D. National Mission for Energy Conservation
Explanation
The correct answer is National Mission for Energy Conservation. This is because the National Action Plan on Climate Change includes various missions aimed at addressing climate change and promoting sustainable development. These include the National Mission for Sustainable Agriculture, which focuses on improving agricultural practices to make them more climate-resilient, and the National Mission on Sustainable Habitat, which aims to promote sustainable urban development. The National Mission for Enhanced Energy Efficiency is also part of the plan and focuses on improving energy efficiency in various sectors. However, there is no specific mission called National Mission for Energy Conservation mentioned in the options.
13.
Mithi Virdi came in News due to coming nuclear power plant to be set up in:
Correct Answer
D. Gujrat
Explanation
Mithi Virdi came in the news due to the upcoming nuclear power plant that is going to be set up in Gujarat.
14.
Which combination figure is incorrect regarding energy Capacity installed in India?
Correct Answer
D. Hydroelectricity & Gas
Explanation
The combination figure that is incorrect regarding energy capacity installed in India is "Hydroelectricity & Gas." This is because hydroelectricity and gas are both considered as renewable energy sources and not as separate categories.
15.
What is the capacity of the world's largest power plant?
Correct Answer
C. 648MW
Explanation
The correct answer is 648MW. This is the capacity of the world's largest power plant. The unit MW stands for megawatts, which is a measure of power. Power plants generate electricity, and their capacity refers to the maximum amount of power they can produce. In this case, the world's largest power plant has a capacity of 648 megawatts, making it capable of generating a significant amount of electricity.
16.
This power plant was set up in:
Correct Answer
D. Kumudhi
17.
Which of these countries has the highest per capita carbon dioxide emission?
Correct Answer
B. Australia
Explanation
Australia has the highest per capita carbon dioxide emission among the given countries. This means that on average, each person in Australia produces a higher amount of carbon dioxide compared to the other countries listed.