Q4341. Unregulated deforestation in hilly regions directly leads to which of the following effects?
RAS Prelims MCQ Practice
9,654 RAS Prelims practice MCQs with the correct answer and a clear explanation for each. Filter by subject and chapter.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
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Q4342. Find the odd one out among natural resources based on renewability.
Explanation
Solar energy is an inexhaustible resource, while forests and groundwater can be considered renewable if they are harvested and managed sustainably over time. Coal, however, is a fossil fuel formed over millions of years from decaying organic matter and is depleted as it is consumed. This lack of replenishment on a human timescale makes coal a non-renewable resource and the out.
Q4343. The headquarters of the International Solar Alliance (ISA), an initiative launched jointly by India and France, is located in:
Explanation
The International Solar Alliance is a treaty-based intergovernmental organization launched by India and France to promote the efficient exploitation of solar energy. Its primary goal is to reduce reliance on fossil fuels. The headquarters of the ISA is located at the National Institute of Solar Energy in Gurugram, India, making it the first such international organization to be headquartered in India.
Q4344. Identify the correct statement regarding wind energy in India.
Explanation
India has significant wind energy potential, particularly along its long coastline. The states of Tamil Nadu and Gujarat have emerged as leaders in wind power installation due to favorable wind speeds and government support. Unlike polluting fossil fuels, wind energy is a clean, renewable source that generates electricity without emitting greenhouse gases, playing a key role in India’s transition to sustainable power.
Q4345. Identify the incorrect statement regarding biomass energy.
Explanation
Biomass energy is a renewable resource derived from organic materials like plant and animal waste. Biogas is a key product of this energy source, produced through anaerobic digestion. Because plants can be regrown in a relatively short time, the claim that biomass is non-renewable due to a million-year growth cycle is factually incorrect. Biomass provides a sustainable way to manage waste.
Q4346. While both generate electricity from sunlight, how does Solar Photovoltaic (PV) technology fundamentally differ from Concentrated Solar Power (CSP)?
Explanation
Solar Photovoltaic technology converts sunlight directly into electricity using semiconductor materials. In contrast, Concentrated Solar Power uses mirrors or lenses to focus a large area of sunlight onto a receiver. This heat is then used to drive a steam turbine that generates power. This fundamental difference in energy conversion mechanisms distinguishes the two most common types of large-scale solar technologies.
Q4347. Read the following statements and select the correct option:
Statement I: The transition to renewable energy is essential for achieving the climate targets set under the Paris Agreement.
Statement II: Renewable energy sources currently provide 100% of India’s total energy consumption.
Statement I: The transition to renewable energy is essential for achieving the climate targets set under the Paris Agreement.
Statement II: Renewable energy sources currently provide 100% of India’s total energy consumption.
Explanation
Transitioning to renewable energy is a critical requirement for meeting the global climate targets established under the Paris Agreement. While India is rapidly expanding its renewable capacity, these sources do not yet provide one hundred percent of the country’s total energy consumption. Fossil fuels still play a major role in the energy mix, making the second statement an incorrect exaggeration of current reality.
Q4348. Identify the correct pair regarding renewable energy installations in India.
Explanation
India is home to several of the world’s largest renewable energy projects. Bhadla Solar Park, located in Rajasthan, is currently the largest solar park in the world. In contrast, the Kamuthi Solar Project is in Tamil Nadu, and the Muppandal Wind Farm is also in Tamil Nadu. Charanka Solar Park is situated in Gujarat, not Tamil Nadu, making the Rajasthan pair correct.
Q4349. Rajasthan possesses immense potential for solar energy generation primarily because:
Explanation
Rajasthan has the highest potential for solar energy in India due to its unique geographic and climatic advantages. The state receives intense solar radiation and enjoys a high number of clear, sunny days throughout the year. Additionally, the availability of vast stretches of uncultivated wasteland in the desert regions provides the necessary space for the installation of large-scale solar power plants.
Q4350. All of the following are considered renewable energy sources, EXCEPT:
Explanation
Geothermal, tidal, and small hydropower are all considered renewable energy sources because they rely on natural processes that are replenished on a human timescale. Natural gas, however, is a fossil fuel formed over millions of years from decaying organic matter. Like coal and oil, it is a finite resource that is depleted by use and contributes significantly to greenhouse gas emissions.Answer key for these questions
| Q | Correct answer |
|---|---|
| 4341 | (c) Greater frequency and severity of landslides and flash floods. |
| 4342 | (b) Coal |
| 4343 | (a) Gurugram, India |
| 4344 | (c) Tamil Nadu and Gujarat are among the leading states in wind power installation in India. |
| 4345 | (a) Biomass energy is a non-renewable source because plants take millions of years to grow. |
| 4346 | (d) PV uses semiconductors for electricity, while CSP uses mirrors and heat. |
| 4347 | (a) Statement I is correct, and Statement II is incorrect. |
| 4348 | (c) Bhadla Solar Park - Rajasthan |
| 4349 | (d) High solar radiation, clear sunny days, and vast wasteland availability. |
| 4350 | (b) Natural gas |
Frequently asked questions
How many RAS Prelims practice MCQs are there on RAS Prelims?
This page has 9654 practice MCQs on the RAS Prelims syllabus. Each has the correct answer, and most have an explanation.
How should I practise MCQs for RAS Prelims?
Attempt each question first, then open the answer and read the explanation. Practise one chapter at a time, note the facts you got wrong and revise them. Repeat the chapter after a few days.
Are these actual RAS Prelims past-paper questions?
No. These are practice questions written for the RAS Prelims syllabus. They follow the pattern the exam uses: factual questions, statement-based questions, match-the-list and assertion-reason.