Q9421. The headquarters and major historical smelting facilities of Hindustan Copper Limited (HCL) in Rajasthan are situated at which location?
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Q9422. Which of the following statements correctly identifies the historical and metallurgical significance of the Zawar region in Udaipur?
Explanation
The Zawar region is internationally recognized for its ancient metallurgical heritage. It contains the earliest known evidence of zinc distillation on a commercial scale, dating back several centuries. This achievement has been designated as an International Historical Landmark by ASM International. This historical significance highlights Rajasthan’s long-standing tradition of advanced mineral processing, long before the advent of modern industrial mining techniques.
Q9423. Which of the following options represents the most appropriate long-term solution for tackling the challenges of low-grade mineral ores in Rajasthan?
Explanation
As high-grade mineral reserves are depleted, the long-term sustainability of Rajasthan’s mining sector depends on using low-grade ores. Investing in advanced mineral beneficiation and metallurgical research is the most appropriate solution. This allows for the efficient removal of impurities and the upgrading of ore quality, ensuring that the state’s vast but low-grade resources can be utilized effectively for industry.
Q9424. Identify the incorrectly matched pair regarding the specific mineral and the district it is prominently found in:
Explanation
Tungsten is primarily found in the Nagaur (Degana) and Sirohi districts of Rajasthan. Jaisalmer is not associated with tungsten; it is famous for limestone, sandstone, and hydrocarbons. Gypsum is correctly matched with Bikaner, rock phosphate with Udaipur (Jhamarkotra), and limestone with Chittorgarh, which is the hub of the state’s cement industry. Identifying these regional concentrations is key to understanding geology.
Q9425. The Kawas and Uttarlai regions in the Barmer district are prominently recognized for extensive deposits of which non-metallic mineral?
Explanation
The Kawas and Uttarlai regions in the Barmer district are well-known for their extensive gypsum deposits. These areas, along with other sites in Bikaner and Nagaur, form the core of Rajasthan’s gypsum-producing landscape. The gypsum found here is utilized in various sectors, ranging from the manufacture of cement and plaster to its vital role in improving the quality of soil.
Q9426. The concept of "sustainable mining" as emphasized in Rajasthan’s modern mineral policies fundamentally aims to balance which two major factors?
Explanation
Sustainable mining as promoted in modern policy aims to balance the economic benefits of mineral extraction with the necessity of environmental protection. It involves implementing zero-waste mining techniques, mandatory land reclamation, and minimizing the ecological footprint of mining activities. This approach ensures that mineral resources contribute to current economic growth without compromising the environmental health and resource availability for future generations.
Q9427. In the context of Rajasthan’s polymetallic deposits, silver is systematically recovered as an extremely valuable by-product primarily at which major smelting facilities?
Explanation
Silver is systematically recovered as a by-product during the smelting of lead and zinc at the Chanderiya and Debari facilities. These plants, operated by Hindustan Zinc Limited, use advanced metallurgical processes to separate precious metals from base metal concentrates. Because silver is naturally present in the ores from Zawar and Rampura-Agucha, these smelters are the primary sites for national production.
Q9428. The Scientific Policy Resolution of 1958, introduced under the leadership of Jawaharlal Nehru, primarily aimed to achieve which of the following objectives?
Explanation
The Scientific Policy Resolution of 1958 was a landmark document highlighting the government’s commitment to scientific progress. It aimed to cultivate scientific research across all sectors to ensure national development. By prioritizing science, India sought to bridge the gap between tradition and modernity, fostering an environment where innovation and technology could flourish effectively for societal welfare.
Q9429. According to the Census of India 2011, what is the exact recorded total population of Rajasthan?
Explanation
The 2011 Census provides a detailed demographic profile of Rajasthan, indicating that the state’s total population reached over six crore eighty-five lakh. This official figure highlights the significant population growth experienced in the region over previous decades, contributing significantly to India’s overall demographic landscape and influencing state-level resource allocation and socio-economic planning for various departments.
Q9430. Who among the following is widely acknowledged as the principal architect of India’s three-stage nuclear power programme?
Explanation
Homi J. Bhabha is recognized as the visionary behind the Indian nuclear energy strategy. He formulated the three-stage programme to utilize the country’s vast thorium reserves for sustainable power generation. His leadership established essential institutions like the Tata Institute of Fundamental Research, laying a robust foundation for advanced physics research and long-term atomic energy independence in India.Answer key for these questions
| Q | Correct answer |
|---|---|
| 9421 | (a) Khetri |
| 9422 | (d) It contains the earliest evidence of global zinc distillation, an ASM International Historical Landmark |
| 9423 | (b) Investing in advanced indigenous mineral beneficiation and specialized metallurgical research |
| 9424 | (c) Tungsten -- Jaisalmer |
| 9425 | (d) Gypsum |
| 9426 | (a) Economic mineral extraction balanced with comprehensive environmental and ecological restoration |
| 9427 | (b) The Chanderiya and Debari Lead-Zinc Smelters |
| 9428 | (b) To foster, promote, and sustain the cultivation of science and scientific research in all its aspects |
| 9429 | (b) 6,85,48,437 |
| 9430 | (a) Homi J. Bhabha |
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.