Energy, Renewable and Non-Renewable Energy Resources, Alternative Energy MCQs with Explanations
Practice MCQ Questions
Ques: 1
Which one of the following is a renewable source of energy?
Correct Answer:
(D)
Solar energy
Solar energy is radiant light and heat from the sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy etc. It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power.
Ques: 2
Among the following energy sources which one is used maximum in organic form?
Correct Answer:
(B) Solar Energy
Solar energy is used most in organic form. Light and heat from the Sun are essential for life on Earth. Solar energy is required for the process of photosynthesis in plants. Photovoltaic systems convert sun rays into electricity.
Ques: 3
Which of the following energy source is most eco-friendly?
Correct Answer:
(D)
Solar Cell
Among the energy sources given in the option, Solar cell is most eco-friendly as it converts the energy of light directly into electricity by the photovoltaic effect. Rest options affect the environment in some way.
Ques: 4
Which one of the following is not a fossil fuel?
Correct Answer:
(D)
Uranium
Fossil fuels are non-renewable sources of energy. Fossil fuel was formed by natural processes through decomposition of the buried organism. Examples of fossil fuel include oil, coal and natural gas. Fossil fuels are the main sources of energy presently.
Ques: 5
Concerning ‘fuel cells’ in which hydrogen-rich fuel and oxygen are used to generate electricity. Consider the following statements:
If pure hydrogen is used as a fuel, the fuel cell emits heat and water as a by-product.
Fuel cells can be used for powering buildings and not for small devices like laptop computers.
Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is/are correct :
Correct Answer:
(A) 1 Only
A fuel cell is an electrochemical cell that converts the chemical energy from a fuel into electricity through an electrochemical reaction of hydrogen with oxygen. In this process, fuel cell produces electricity and as by-product, water and heat. Hence statement (1) is correct. Stationary fuel cells are used for commercial, industrial and residential purposes and backup power generation. Hence statement (2) is not correct. Fuel cells generate Direct Current (DC). Hence, statement (3) is incorrect.
Ques: 6
Given below are two statements, one labelled as Assertion (A) and other as the Reason (R).
Assertion (A) : Coal-based thermal power stations contribute to acid rain.
Reason (R) : Oxides of carbon are emitted when coal burns.
Codes:
(A) and (R) are true and (R) is the correct explanation of
(A).
Correct Answer:
(B) .
Ques: 7
Microbial fuel cells are considered a source of sustainable energy. Why?
They use living organisms as catalysts to generate electricity from certain substrates.
They use a variety of inorganic materials as substrates.
They can be installed in wastewater treatment plants to cleanse water and produce electricity.
Which of the statements given above is/are correct?
Correct Answer:
(C) 1 and 3
A Microbial Fuel Cell (MFC) is a bio-electrochemical device that harnesses the power of respiring microbes to convert organic substrates directly into electrical energy. Hence, statement 1 is correct and statement 2 is incorrect. The most immediately foreseeable application of MFC is in waste- water treatment. Microbes love sewage and the conditions of a wastewater treatment plant are ideal for the types of bacteria that can be used in MFC. Hence statement (3) is correct.
Ques: 8
The second most important source after fossil fuels contributing to Indian energy need is -
Correct Answer:
(D)
Solar energy
The second most important source after fossil fuels contributing to Indian energy need is solar energy. The solar energy share in total non-fossil fuel is 12.5 per cent. Hence option(d) is correct.
Ques: 9
What is meant by energy crisis?
Correct Answer:
(D)
The danger of the extinction of fossil fuel like coal and petrol.
The danger of the extinction of fossil fuels like coal and crude oil is called energy crises.
Ques: 10
Which one of the following sources of renewable energy has the greatest potential in India?
Correct Answer:
(A) Solar power
The solar power source of renewable energy has the greatest potential in India. The role of new and renewable energy has been assuming increasing significance in recent times with the growing concern for the country’s energy security. Solar panels are the most eco-friendly power generation systems. They are also called as the fuel of the future.