Q231. The Great Plains of North America were primarily formed by which sequence of long-term geological events?
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Q232. The following question consists of two statements, Assertion (A) and Reason (R). Choose the correct option.
Assertion (A): Inclusive growth is considered essential for the long-term political and social stability of a country.
Reason (R): High economic inequality often leads to social unrest, reducing investment and disrupting sustained economic expansion.
Assertion (A): Inclusive growth is considered essential for the long-term political and social stability of a country.
Reason (R): High economic inequality often leads to social unrest, reducing investment and disrupting sustained economic expansion.
Explanation
Long-term political and social stability depends heavily on inclusive growth. When large portions of the population feel excluded from economic progress, it often results in social unrest and conflict. Such instability discourages investment and disrupts the production of goods and services. Therefore, ensuring that growth benefits everyone is not just an ethical choice but a practical necessity for sustained prosperity.
Q233. Match the devices in List I with their corresponding energy conversions in List II.
| Device | Energy Conversion |
|---|---|
| A. Loudspeaker | i. Light to Chemical |
| B. Dynamo | ii. Heat to Mechanical |
| C. Photosynthesis | iii. Electrical to Sound |
| D. Steam Engine | iv. Mechanical to Electrical |
Explanation
Loudspeakers convert electrical signals into sound energy. Dynamos transform mechanical motion into electrical energy. Photosynthesis is a biological process that converts light energy from the sun into chemical energy stored in glucose. Steam engines utilize heat from burning fuel to produce mechanical work. These examples demonstrate the diverse ways in which energy is transformed to perform useful functions in technology.
Q234. Identify the correct statement regarding the microlithic tools found at Bagor.
Explanation
The stone tool industry at Bagor is distinguished by its high-quality microliths. These miniature tools are predominantly geometric in shape, featuring sophisticated forms such as triangles, trapezes, and crescents. They were crafted from fine-grained materials like chert and quartz. These microliths were designed to be hafted into wooden or bone handles, serving as versatile components for arrows, spears, and other implements.
Q235. The strategic location of Lothal near the Gulf of Khambhat resulted in which of the following primary outcomes for the settlement?
Explanation
Lothal’s proximity to the Gulf of Khambhat and major rivers made it an ideal location for a port. This led to its emergence as a significant center for maritime trade and the manufacture of luxury items. The city was particularly famous for its bead-making industry, using materials like carnelian and lapis lazuli to produce goods that were widely exported.
Q236. The Constitution of India was adopted, enacted, and given to themselves by the people of India on:
Explanation
The Constitution of India was officially adopted and enacted by the Constituent Assembly on November 26, 1949. This is the date mentioned in the Preamble as the day "we do hereby adopt, enact and give to ourselves this Constitution." While the full Constitution came into force later, this date marked the formal completion and acceptance of the final legal document.
Q237. A plain that borders a sea or an ocean and is formed by marine deposition or emergence is specifically termed a:
Explanation
A coastal plain is a flat, low-lying piece of land next to the ocean. It can be formed through the emergence of part of the continental shelf due to a drop in sea level or tectonic uplift. Alternatively, it may result from the deposition of sediments by rivers and marine currents along the shoreline. These plains often feature sandy beaches and salt marshes.
Q238. Which of the following is NOT typically a focus area for promoting inclusive growth?
Explanation
Inclusive growth strategies typically focus on areas that empower the population, such as skill development, universal healthcare, and the empowerment of women. These initiatives provide the foundation for equitable participation in the economy. Conversely, privatizing core judicial functions is not a standard component of this framework. Protecting the rule of law through accessible public institutions is actually vital for fair growth.
Q239. Work done by kinetic friction on a moving object is always:
Explanation
Kinetic friction always acts in the direction opposite to the displacement of a moving object. Because the force and displacement vectors are in opposite directions, the work done by friction is mathematically negative. This negative work indicates that energy is being removed from the object’s kinetic energy and typically dissipated as heat, causing the object to slow down unless another force acts.
Q240. In the context of Rajasthan’s Mesolithic period, what defines ‘geometric microliths’?
Explanation
Geometric microliths are tiny stone tools characteristic of the Mesolithic era in Rajasthan. They were deliberately shaped into precise forms such as triangles, trapezes, and crescents. These tools were not used alone but were hafted onto wooden or bone shafts to create composite weapons like arrows and harpoons. This technology allowed for more efficient hunting and reflects a significant advancement in craftsmanship.Answer key for these questions
| Q | Correct answer |
|---|---|
| 231 | (d) Rocky Mountain outwash and northern glacial action |
| 232 | (a) Both A and R are true and R is the correct explanation of A. |
| 233 | (a) A-iii, B-iv, C-i, D-ii |
| 234 | (a) They are characterized by geometric shapes like triangles and trapezes. |
| 235 | (a) Emergence as a seaport and center for bead- making and export |
| 236 | (b) 26 November 1949 |
| 237 | (a) Coastal plain |
| 238 | (c) Privatizing core judicial functions |
| 239 | (b) Negative |
| 240 | (c) Miniature stone tools shaped deliberately into geometric forms like triangles, crescents, and trapezes |
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.