Q301. Which of the following sequences correctly represents the chronological stages of the Indus Valley Civilisation?
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Q302. According to the text of the Preamble, what is the ultimate source of authority of the Indian Constitution?
Explanation
The opening words of the Preamble, "We, the People of India," clearly indicate that the ultimate source of authority for the Constitution resides with the citizens of the country. This signifies that the Constitution is not a gift from a sovereign or a foreign power, but a document created, adopted, and enacted by the people themselves through their representatives.
Q303. Which of the following statements distinguishing hot and cold deserts is incorrect?
Explanation
Hot deserts are usually located in subtropical latitudes, while cold deserts are found in higher latitudes or altitudes. The Sahara represents the hot type, and the Gobi is a cold desert. Both environments support specialized xerophytic plants. However, the claim that cold deserts receive no precipitation is false; they often receive moisture as snow. Conversely, hot deserts rarely experience winter snowfall.
Q304. The widely accepted definition of sustainable development as "development that meets the needs of the present without compromising the ability of future generations to meet their own needs" was introduced by the:
Explanation
The classic definition of sustainable development was popularized by the 1987 report "Our Common Future," published by the World Commission on Environment and Development. It introduced the idea that current progress should not jeopardize the needs of future generations. This landmark report shifted the global conversation, emphasizing the need to balance economic growth with environmental protection and social equity.
Q305. Consider the following statements about light:
I. Light travels faster in a vacuum than in glass.
II. Refraction occurs when light passes from one medium to another with a different optical density.
III. The angle of incidence is always less than the angle of reflection.
Which of the above statement(s) is/are correct?
I. Light travels faster in a vacuum than in glass.
II. Refraction occurs when light passes from one medium to another with a different optical density.
III. The angle of incidence is always less than the angle of reflection.
Which of the above statement(s) is/are correct?
Explanation
Light travels at its maximum speed in a vacuum and slows down when entering denser media like glass. Refraction is the bending of light as it crosses boundaries between materials with different optical densities. Regarding reflection, the law states that the angle of incidence is always equal to the angle of reflection, not less than it, making the third statement factually incorrect.
Q306. Consider the following statements about the transition to food production in Rajasthan:
I. It occurred uniformly across all regions of Rajasthan simultaneously.
II. Southeastern Rajasthan saw an earlier transition to sedentary farming due to favorable riverine environments.
III. Pastoralism remained a dominant economic strategy in the more arid western regions even after the introduction of agriculture.
Which of the above statement(s) is/are correct?
I. It occurred uniformly across all regions of Rajasthan simultaneously.
II. Southeastern Rajasthan saw an earlier transition to sedentary farming due to favorable riverine environments.
III. Pastoralism remained a dominant economic strategy in the more arid western regions even after the introduction of agriculture.
Which of the above statement(s) is/are correct?
Explanation
The transition to food production in Rajasthan was not uniform across the state. Southeastern Rajasthan, with its fertile river valleys, saw an earlier shift to sedentary farming. In contrast, the more arid western regions continued to rely heavily on pastoralism even after agriculture was introduced. These regional variations reflect the significant role of local environments in shaping economic strategies and cultural developments.
Q307. Which of the following statements concerning Dholavira is incorrect?
Explanation
Dholavira, located on Kadir Island in Gujarat, is renowned for its unique three-tier urban division and sophisticated water management. Contrary to the suggestion that it lacked defenses, the site actually features massive and impressive fortification walls made of stone and mud-brick. These walls surrounded different sections of the city, providing security and reflecting the organized nature of Harappan planning.
Q308. Identify the incorrect statement regarding the nature and significance of the Preamble:
Explanation
The Preamble is neither a source of power to the legislature nor a prohibition upon the powers of the legislature. While it indicates the nature of the state and serves as a vital tool for interpreting ambiguous provisions of the Constitution, it does not possess any independent legal force to grant substantive powers that are not otherwise provided in the constitutional text.
Q309. Match List-I (Desert) with List-II (Continent) and select the correct answer using the codes given below:
| Desert | Continent |
|---|---|
| A. Sahara | i. South America |
| B. Atacama | ii. Asia |
| C. Gobi | iii. Australia |
| D. Great Victoria | iv. Africa |
Explanation
Major deserts are distributed across various continents based on global climate patterns. The Sahara is the dominant desert of Africa. The Atacama is located along the western coast of South America. The Gobi spans parts of northern China and southern Mongolia in Asia. The Great Victoria Desert is situated in Australia. Each desert has unique physical features driven by its specific geography and atmospheric conditions.
Q310. In the context of sustainable development, the concept of "intergenerational equity" primarily refers to:
Explanation
Intergenerational equity is a core principle of sustainable development that focuses on fairness between different generations. it argues that the current generation has a moral obligation to manage the Earth’s resources responsibly. By avoiding over-extraction and pollution, we ensure that future inhabitants have access to a healthy planet and sufficient resources. This long-term perspective is essential for planetary survival and continuity.Answer key for these questions
| Q | Correct answer |
|---|---|
| 301 | (a) Early Harappan, Mature Harappan, Late Harappan |
| 302 | (c) The People of India |
| 303 | (c) Cold deserts do not experience any form of precipitation, whereas hot deserts receive winter snowfall. |
| 304 | (c) 1987 Brundtland Commission Report |
| 305 | (a) I and II only |
| 306 | (b) II and III only |
| 307 | (d) It lacked any form of defensive fortification walls around its perimeter. |
| 308 | (d) It acts as an independent source of substantive power for the legislature. |
| 309 | (d) A-iv, B-i, C-ii, D-iii |
| 310 | (d) Equity across future generations. |
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.