Q441. Consider the following statements about global physical landforms: I. Fold mountains are associated with constructive plate boundaries. II. The Deccan plateau is an example of a flood basalt province. III. The Amazon plain is formed exclusively by glacial deposition. IV. The Sahara desert spans across the Tropic of Cancer. V. Block mountains feature prominent grabens and horsts. Which of the above statement(s) is/are incorrect?
Explanation
Fold mountains are formed at convergent plate boundaries, not constructive ones. While the Deccan Plateau is a flood basalt province and the Sahara spans the Tropic of Cancer, the Amazon plain is a fluvial landform created by river deposition, not glacial action. Block mountains are correctly associated with horsts and grabens. Therefore, the statements regarding fold mountain boundaries and Amazonian formation are incorrect.
RAS PrelimsIndian Economy · Economic Growth, Development and Sustainable Development
Q442. Consider the following ways in which climate change can impact an economy: I. Decreased agricultural yields due to shifting weather patterns. II. Increased costs related to extreme weather event recovery. III. Loss of labor productivity due to extreme heat waves. IV. Positive economic impact resulting from uniform sea-level rise globally. V. Destruction of coastal infrastructure. Which of the above statement(s) is/are correct?
Explanation
Climate change disrupts agriculture through unpredictable weather and causes significant financial loss from extreme events like floods. Heat waves also reduce labor productivity, particularly in outdoor sectors. Coastal infrastructure is threatened by rising sea levels and storms. While some regions might see minor shifts, there is no uniform positive economic impact from global sea-level rise; rather, it poses a severe threat to many nations.
RAS PrelimsScience and Technology · Basics of Everyday Science
Q443. An ammeter is always connected in a circuit in:
Explanation
To measure the total electric current in a specific branch or circuit, an ammeter must always be connected in series. This ensures that the full flow of charge passes through the instrument. Ammeters are designed with very low internal resistance to minimize their impact on the overall circuit, preventing a significant drop in current that would occur with high-resistance devices.
RAS PrelimsRajasthan History, Art and Culture · Prehistoric Rajasthan
Q444. Identify the correct statement that highlights a major architectural difference between Gilund and Ahar.
Explanation
A major architectural difference between Gilund and Ahar is the use of building materials. While Ahar relied almost exclusively on stone and mud bricks, Gilund features the prominent use of baked bricks in some of its larger structures. This use of fired bricks indicates a higher degree of technological investment and perhaps a different social or functional status for Gilund within the culture.
RAS PrelimsAncient Indian History · Indus Valley Civilisation
Q445. Recent DNA analysis of skeletal remains from the Rakhigarhi cemetery has suggested which of the following conclusions?
Explanation
Recent genetic studies of skeletal remains from the Rakhigarhi cemetery have provided groundbreaking insights into the ancestry of the Harappan people. The results show that the Harappans had a unique genetic profile that contributed significantly to the ancestry of modern South Asians. This suggests a long-term genetic continuity in the region rather than a complete replacement of the population by invaders.
RAS PrelimsIndian Polity and Governance · Framing of the Constitution, Preamble and Citizenship
Q446. Identify the incorrect statement regarding the current legal position of the Preamble:
Explanation
Under current legal doctrine, the Preamble is an integral part of the Constitution but it is non-justiciable. Crucially, it does not grant any substantive power to the legislature, nor does it place any substantive limitations or prohibitions upon legislative powers. Its role is primarily interpretive, guiding the understanding of the Constitution’s goals and principles rather than acting as a direct source of law.
Q447. Which of the following statements comparing different landforms is incorrect?
Explanation
Mountains are typically steeper than plateaus, which are elevated flatlands. Deserts can be found across various terrains including plains and mountains. However, it is incorrect to state that all plains are formed by river deposition. Some plains result from glacial outwash, wind-blown loess, marine processes at coasts, or even the long-term erosion of mountains into peneplains.
RAS PrelimsIndian Economy · Economic Growth, Development and Sustainable Development
Q448. Match List I with List II and select the correct answer using the codes given below:
Climate Economics Terms
Definitions
A. Adaptation
i. Attaching a financial cost to greenhouse gas emissions to encourage reductions.
B. Mitigation
ii. Adjusting ecological, social, or economic systems in response to observed climate impacts.
C. Carbon Pricing
iii. Ensuring that the shift to a green economy is fair and leaves no workers or communities behind.
D. Just Transition
iv. Interventions to reduce the sources or enhance the sinks of greenhouse gases.
Explanation
Adaptation involves adjusting to climate impacts, while mitigation focuses on reducing emissions. Carbon pricing uses market mechanisms to discourage pollution by adding a cost to carbon. A just transition ensures that the move toward a green economy is fair to workers in traditional industries. These different strategies must work together to create a comprehensive and equitable response to the global climate crisis.
RAS PrelimsScience and Technology · Basics of Everyday Science
Q449. Consider the following statements about the resistance of a metallic wire: I. It is directly proportional to its length. II. It is inversely proportional to its area of cross-section. III. It depends on the nature of the material. IV. It remains unaffected by temperature changes. V. Resistance increases if the wire is stretched. Which of the above statement(s) is/are incorrect?
Explanation
The resistance of a metallic wire is influenced by its physical dimensions and material properties. It is directly proportional to length and inversely proportional to the cross-sectional area. Stretching a wire increases length and decreases area, raising resistance. Crucially, resistance is not constant with temperature; for most metals, it increases as the temperature rises, making the statement about temperature independence incorrect.
RAS PrelimsRajasthan History, Art and Culture · Prehistoric Rajasthan
Q450. Consider the following statements about the structural remains at Gilund: I. Excavations revealed a complex of parallel mud-brick walls. II. Large circular pits found at the site were likely used for grain storage. III. The site completely lacks evidence of wattle-and-daub construction. Which of the above statement(s) is/are correct?
Explanation
Excavations at Gilund uncovered impressive structural remains, including a complex of parallel mud-brick walls that may have served as the base for a large public building. Additionally, large circular pits were discovered, which were likely utilized for long-term grain storage. While wattle-and-daub construction was indeed present for smaller dwellings, the massive brick features highlight the site’s importance as a center.
Answer key for these questions
Q
Correct answer
441
(a) I and III only
442
(a) I, II, III and V only
443
(a) Series
444
(d) Gilund shows prominent use of baked bricks in certain massive structures, unlike Ahar.
445
(d) There is genetic continuity between Harappans and modern Asians
446
(d) It places substantive limitations upon the powers of the legislature.
447
(d) All plains worldwide are formed exclusively by the depositional work of rivers.
448
(a) A-ii, B-iv, C-i, D-iii
449
(c) IV only
450
(a) I and II only
Frequently asked questions
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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.
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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.
