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Chapter 14: Sources of Energy

Science • Class 10 • Science Class 10

14

Sources of Energy

Science • Class 10 • Science Class 10

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Related PYQs (18)

2016•Prelims•Paper 1 (GS)•Q.78

On which of the following can you find the Bureau of Energy Efficiency Star Label?

1
Ceiling fans
2
Electric geysers
3
Tubular fluorescent lamps
GS-III
2016•Prelims•Paper 1 (GS)•Q.79
India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?
GS-III
2016•Prelims•Paper 2 (CSAT)•Q.21

What is/are the present constraint/constraints in using biomass as fuel for power generation?

1
Lack of sustainable supply of biomass
2
Biomass production competes with food production
3
Bio-energy may not always be low carbon on a life-cycle basis.
CSAT
2016•Prelims•Paper 2 (CSAT)•Q.22

Which of the following can lead to food security problem?

1
Using agricultural and forest residues as feedstock for power generation
2
Using biomass for carbon capture and storage
3
Promoting the cultivation of energy crops.
CSAT
2016•Prelims•Paper 2 (CSAT)•Q.23

In the context of using biomass, which of the following is/are the characteristic/characteristics of the sustainable production of biofuel?

1
Biomass as a fuel for power generation could meet all the primary energy requirements of the world by 2050
2
Biomass as a fuel for power generation does not necessarily disrupt food and forest resources
3
Biomass as a fuel for power generation could help in achieving negative emissions, given certain nascent technologies.
CSAT
2016•Prelims•Paper 2 (CSAT)•Q.24

With reference to the passage, following assumptions have been made:

1
Some climate-energy models suggest that the use of biomass as a fuel for power generation helps in mitigating greenhouse gas emissions
2
It is not possible to use biomass as a fuel for power generation without disrupting food and forest resources.
CSAT
2016•Prelims•Paper 2 (CSAT)•Q.25
Which among the following is the most logical and critical inference that can be made from the above passage?
CSAT
2020•Prelims•Paper 1 (GS)•Q.84

According to India's National Policy on Biofuels, which of the following can be used as raw materials for the production of biofuels?

1
Cassava;
2
Damaged wheat grains;
3
Groundnut seeds;
4
Horse gram;
5
Rotten potatoes;
6
Sugar beet.
Environment
2020•Prelims•Paper 1 (GS)•Q.88

With reference to solar water pumps, consider the following statements:

1
Solar power can be used for running surface pumps and not for submersible pumps.
2
Solar power can be used for running centrifugal pumps and not the ones with piston.
Science and Technology
2024•Prelims•Paper 1 (GS)•Q.31

With reference to radioisotope thermoelectric generators (RTGs), consider the following statements:

1
RTGs are miniature fission reactors.
2
RTGs are used for powering the onboard systems of spacecrafts.
3
RTGs can use Plutonium-238, which is a by-product of weapons development.
General Science
2025•Prelims•Paper 1 (GS)•Q.41
Consider the following types of vehicles : I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?
General Science
2017•Mains•GS-III•Q.16
Give an account of the growth and development of nuclear science and technology in India. What is the advantage of fast breeder reactor programme in India?
Science and Technology
2018•Mains•GS-III•Q.1
Access to affordable, reliable, sustainable and modern energy is the sine qua non to achieve Sustainable Development Goals (SDGs). Comment on the progress made in India in this regard.
Infrastructure
2021•Mains•GS-III•Q.16
The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s. How has this invention impacted the everyday life of human beings?
Physics
2023•Mains•GS-III•Q.15
The adoption of electric vehicles is rapidly growing worldwide. How do electric vehicles contribute to reducing carbon emissions and what are the key benefits they offer compared to traditional combustion engine vehicles?
GS-III
2025•Mains•GS-III•Q.5
The fusion energy programme in India has steadily evolved over the past few decades. Mention India's contributions to the international fusion energy project - International Thermonuclear Experimental Reactor (ITER). What will be the implications of the success of this project for the future of global energy?
GS-III
2014•Prelims•Paper 1 (GS)•Q.7

With reference to technologies for solar power production, consider the following statements:

1
'Photovoltaics' is a technology that generates electricity by direct conversion of light into electricity, while 'Solar Thermal' is a technology that utilizes the Sun's rays to generate heat which is further used in electricity generation process.
2
Photovoltaics generates Alternating Current (AC), while Solar Thermal generates Direct Current (DC).
3
India has manufacturing base for Solar Thermal technology, but not for Photovoltaics.
General Science
2015•Prelims•Paper 1 (GS)•Q.95

With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:

1
If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.
2
Fuel cells can be used for powering buildings and not for small devices like laptop computers.
3
Fuel cells produce electricity in the form of Alternating Current (AC).
General Science

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