Q311. The splitting of white light into its component colors upon passing through a prism is called:
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Q312. Which of the following sites in Rajasthan is NOT traditionally classified as purely Neolithic?
Explanation
In Rajasthan, identifying a "purely classical Neolithic" site is difficult as most locations show different developmental patterns. Ahar is a major Chalcolithic center, while Bagor Phase I is predominantly Mesolithic with early pastoralism. Didwana is famous for its extensive Palaeolithic sequences. The rapid transition to copper use in the region often blurred the lines, resulting in a unique cultural trajectory.
Q313. Consider the following statements regarding the economic life of the Harappans:
I. The manufacturing of beads was a highly specialized craft, particularly at Chanhudaro.
II. Spindle whorls found at various sites indicate that spinning of cotton and wool was common.
III. The economy was heavily dependent on the extensive use of minted silver coins.
Which of the combination of statements given above is correct?
I. The manufacturing of beads was a highly specialized craft, particularly at Chanhudaro.
II. Spindle whorls found at various sites indicate that spinning of cotton and wool was common.
III. The economy was heavily dependent on the extensive use of minted silver coins.
Which of the combination of statements given above is correct?
Explanation
The Harappan economy was based on advanced craft specialization and domestic production. Chanhudaro was a major center for bead-making, while the presence of spindle whorls across sites indicates that spinning and weaving were common. However, the economy was not based on metallic currency. Instead, it relied on a barter system and the use of standardized weights for trade transactions.
Q314. Since the Preamble is non-justiciable in nature, which of the following is a direct effect of this characteristic?
Explanation
The Preamble is non-justiciable, meaning its provisions are not legally enforceable in a court of law. One cannot sue the government based solely on a perceived violation of the ideals mentioned in the Preamble, such as ‘Socialist’ or ‘Fraternity’. However, it remains an integral part of the Constitution and can be amended under Article 368, provided the basic structure is maintained.
Q315. The extreme aridity of the Atacama Desert is primarily attributed to which of the following geographic phenomena?
Explanation
The extreme aridity of the Atacama Desert is caused by two main factors. First, the cold Humboldt Current flowing along the coast stabilizes the air, preventing cloud formation and rain. Second, the high Andes Mountains act as a massive rain shadow, blocking moisture-laden winds from the east. These combined effects make the Atacama one of the driest places on Earth.
Q316. Which of the following best describes "intragenerational equity" in sustainable development?
Explanation
Intragenerational equity refers to the fair distribution of resources and opportunities among people living today. It emphasizes reducing the gap between the rich and the poor, both within and between nations. Sustainable development requires that poverty be eradicated and that all people have access to basic needs. Without addressing current inequalities, it is impossible to achieve a stable and sustainable global society.
Q317. The formation of a mirage in deserts is an optical illusion primarily due to:
Explanation
A mirage is an optical illusion caused by the refraction and total internal reflection of light in the atmosphere. On hot days, layers of air near the ground become much warmer and less dense than the air above. Light from the sky travels through these layers and bends upward, creating a displaced image that often looks like a pool of shimmering water.
Q318. Match List-I with List-II regarding prehistoric sites and their dominant economic transitions:
| Region/Site | Dominant Prehistoric Economic Transition |
|---|---|
| A. Didwana | i. Mature Chalcolithic farming |
| B. Bagor (Phase I) | ii. Lower Palaeolithic foraging |
| C. Bagor (Phase II) | iii. Mesolithic hunting-gathering |
| D. Ahar | iv. Introduction of metal and pastoralism |
Explanation
Different sites in Rajasthan represent various economic stages. Didwana is a key site for Lower Palaeolithic foraging. Bagor’s earliest phase illustrates Mesolithic hunting-gathering, while its second phase marks the introduction of metal and pastoralism. Ahar represents the peak of mature Chalcolithic farming. Together, these sites provide a comprehensive overview of the long-term shifts in human subsistence and technology across the landscape.
Q319. Rakhigarhi, recognized as the largest Harappan site in India, is situated in which of the following states?
Explanation
Rakhigarhi is an archaeological site located in the Hisar district of Haryana. Recent research and excavations have shown that it is one of the largest and most significant settlements of the Indus Valley Civilisation. Its size and the diversity of artifacts found there indicate that it served as a major regional capital, comparable in importance to Harappa and Mohenjo-daro.
Q320. Arrange the following adjectives as they appear in the Preamble to describe the nature of the Indian State:
I. Republic
II. Sovereign
III. Secular
IV. Socialist
V. Democratic
Select the correct order from the options below:
I. Republic
II. Sovereign
III. Secular
IV. Socialist
V. Democratic
Select the correct order from the options below:
Explanation
The Preamble declares India to be a "Sovereign Socialist Secular Democratic Republic." This specific order reflects the core characteristics of the Indian state. ‘Sovereign’ comes first, followed by ‘Socialist’ and ‘Secular’ (both added in 1976), then ‘Democratic’, and finally ‘Republic’. Maintaining this sequence is important as it defines the foundational nature of the country’s political system.Answer key for these questions
| Q | Correct answer |
|---|---|
| 311 | (d) Dispersion |
| 312 | (d) All of the above (none are purely classical Neolithic) |
| 313 | (c) I and II only |
| 314 | (c) Provisions are not legally enforceable in courts of law if violated. |
| 315 | (c) The Humboldt Current and the Andes rain shadow |
| 316 | (c) Equity within current populations. |
| 317 | (c) Total internal reflection |
| 318 | (a) A-ii, B-iii, C-iv, D-i |
| 319 | (b) Haryana |
| 320 | (b) II, IV, III, V, I |
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.
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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.