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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RAS PrelimsAncient Indian History · Indus Valley Civilisation
Q241. Match the Harappan site in List I with its present-day state or province in List II and select the correct answer.
Harappan Site
Present-day State/Province
A. Daimabad
i. Rajasthan
B. Kalibangan
ii. Maharashtra
C. Harappa
iii. Sindh
D. Mohenjo-daro
iv. Punjab (Pakistan)
Explanation
Harappan sites are distributed across diverse modern administrative regions. Daimabad is located in Maharashtra, marking the southern reach. Kalibangan is situated in the Hanumangarh district of Rajasthan. Harappa is located in the Punjab province of Pakistan, specifically on the Ravi River. Mohenjo-daro is found in the Larkana district of Sindh, Pakistan, situated on the banks of the Indus river.
RAS PrelimsIndian Polity and Governance · Framing of the Constitution, Preamble and Citizenship
Q242. Which of the following constitutional provisions did not come into force on 26 November 1949?
Explanation
While the majority of the Constitution’s provisions came into force on January 26, 1950, several specific articles related to citizenship, elections, the provisional parliament, and temporary provisions became effective immediately upon adoption on November 26, 1949. Fundamental Rights, however, were among the major parts that did not commence until the official Republic Day in January 1950.
Q243. Which of the following statements correctly describes the plains of the Amazon Basin?
Explanation
The plains of the Amazon Basin represent the world’s most extensive tropical rainforest ecosystem. Located in South America, this vast lowland area is drained by the Amazon River and its numerous tributaries. The region is characterized by high annual precipitation, consistent warm temperatures, and unparalleled biological diversity. It plays a critical role in global carbon cycling and regulating the Earth’s climate.
RAS PrelimsIndian Economy · Economic Growth, Development and Sustainable Development
Q244. The Environmental Kuznets Curve hypothesizes that as an economy develops, market forces first:
Explanation
The Environmental Kuznets Curve suggests an inverted U-shaped relationship between economic development and environmental quality. It hypothesizes that in the early stages of industrialization, pollution and resource depletion increase rapidly. However, as an economy matures and income levels rise, society begins to prioritize environmental protection. Better technology and stricter regulations eventually lead to a decline in degradation, improving overall environmental health.
RAS PrelimsScience and Technology · Basics of Everyday Science
Q245. The primary mechanism of heat transfer in solid metals is:
Explanation
Conduction is the primary mode of heat transfer in solid materials, particularly metals. It occurs as high-energy particles collide with neighboring ones, transferring thermal energy through the substance. In metals, this process is highly efficient due to the presence of free electrons that can move rapidly and transport heat across the lattice, making metals much better conductors than non-metallic solids.
RAS PrelimsRajasthan History, Art and Culture · Prehistoric Rajasthan
Q246. Match List-I with List-II regarding the cultural phases and material features of Bagor:
Cultural Phase of Bagor
Defining Material Feature
A. Phase I
i. Introduction of iron tools and wheel-made pottery
B. Phase II
ii. Glass beads and modern artifacts
C. Phase III
iii. Exclusively microliths and animal bones (aceramic)
D. Late historical occupation
iv. Microliths combined with copper tools and handmade pottery
Explanation
Bagor’s cultural sequence is defined by its changing material remains. Phase I is aceramic, featuring only microliths and animal bones. Phase II introduces copper tools and handmade pottery alongside microliths. Phase III is marked by the appearance of iron implements and wheel-made ceramics. Later occupations are identified by modern artifacts like glass beads, reflecting the site’s long-term importance as a center of activity.
RAS PrelimsAncient Indian History · Indus Valley Civilisation
Q247. Which of the following was NOT a characteristic of the Great Bath at Mohenjo-daro?
Explanation
The Great Bath was a monumental structure located on the citadel mound of Mohenjo-daro, not in the lower town. It was designed for ritual bathing and featured sophisticated engineering, including a floor made watertight with bitumen and gypsum. The presence of steps, surrounding rooms, and a nearby well highlights its importance as a center for public or religious ceremonies.
RAS PrelimsIndian Polity and Governance · Framing of the Constitution, Preamble and Citizenship
Q248. Consider the following articles of the Indian Constitution: I. Article 5 II. Article 324 III. Article 368 Which of the above combination of articles came into force on 26 November 1949?
Explanation
Article 5, which relates to citizenship at the commencement of the Constitution, and Article 324, which deals with the Election Commission, both came into force on November 26, 1949. Article 368, regarding the power and procedure for amending the Constitution, was not among those that started immediately; it became operational on January 26, 1950, alongside the remaining provisions.
Q249. Match List-I (Type of Plain) with List-II (Formative Agent) and select the correct answer using the codes given below:
Type of Plain
Formative Agent
A. Alluvial plain
i. Melting ice and meltwater
B. Glacial outwash plain
ii. Wind deposition
C. Coastal plain
iii. River deposition
D. Loess plain
iv. Marine processes and sea-level changes
Explanation
Different geomorphic agents create various types of plains. Alluvial plains result from river deposition, while glacial outwash plains are formed by meltwater from glaciers. Coastal plains are shaped by marine processes and changes in sea level. Loess plains are created by the deposition of fine silt by wind. Understanding these agents helps explain the diverse physical landscapes and soil types found worldwide.
RAS PrelimsIndian Economy · Economic Growth, Development and Sustainable Development
Q250. In economics, the "Tragedy of the Commons" refers to a situation where:
Explanation
The "Tragedy of the Commons" describes a situation where individual users, acting independently according to their self-interest, deplete a shared resource. Because no single person owns the resource, there is little incentive for conservation. This leads to overexploitation of common goods like fisheries, forests, or clean air. Ultimately, the collective action results in the long-term ruin of the resource for the entire community.
Answer key for these questions
Q
Correct answer
241
(c) A-ii, B-i, C-iv, D-iii
242
(c) Fundamental Rights
243
(c) They constitute the largest tropical rainforest lowland in the world.
244
(c) Increase and then decrease environmental degradation.
245
(c) Conduction
246
(a) A-iii, B-iv, C-i, D-ii
247
(a) It was located in the lower town for the general public’s daily use.
248
(a) I and II only
249
(a) A-iii, B-i, C-iv, D-ii
250
(a) Depleted shared resources.
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.
