Q1761. Mangroves possess several unique adaptations to survive in harsh coastal environments. Which of the following is not an adaptation typical of mangrove trees?
RAS Prelims MCQ Practice
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Q1762. Which of the following statements regarding the trends in India’s tax system is incorrect?
Explanation
While the tax system has evolved with the introduction of the goods and services tax to widen the base, direct taxes remain vital. Corporate and personal income taxes are significant contributors to the government’s revenue. Claims that personal income tax contributes nothing are factually incorrect, as it forms a substantial and growing portion of the total tax revenue collected annually.
Q1763. Which of the following is an incorrect statement regarding India’s stated nuclear doctrine?
Explanation
The stated policy focuses on maintaining a high threshold for the use of nuclear weapons, emphasizing that they are for deterrence rather than battlefield use. The doctrine clearly states that retaliation will be massive and that these weapons will not be used against non-nuclear states. Additionally, the nation remains committed to global disarmament. Suggestions that the policy encourages early use in local conflicts are fundamentally incorrect.
Q1764. Arrange the following developments in the art and architecture of Rajasthan in correct chronological order:
I. Early structural temples at Osian
II. Harappan town planning at Kalibangan
III. Mauryan circular brick temple at Bairath
IV. Rock shelter paintings at Alniya
I. Early structural temples at Osian
II. Harappan town planning at Kalibangan
III. Mauryan circular brick temple at Bairath
IV. Rock shelter paintings at Alniya
Explanation
The architectural evolution begins with prehistoric rock paintings, such as those at Alniya. This is followed by the Harappan urban planning at Kalibangan. The next major development is the Mauryan circular brick temple at Bairath. Finally, the early structural stone temples at Osian represent a later period during the transition to the medieval era, reflecting the long-term progress of building traditions.
Q1765. Find the odd one out among the following philosophical schools based on their classification as heterodox (Nastika) versus orthodox (Astika) in ancient India.
Explanation
Ancient Indian philosophical schools are categorized as either Nastika or Astika. Buddhism, Jainism, and the Ajivika sect are considered Nastika because they reject the supreme authority of the Vedas. In contrast, Nyaya is one of the six orthodox schools of Hindu philosophy that accept Vedic authority. This fundamental distinction is based on the acceptance or rejection of the revealed scriptures in the Vedic tradition.
Q1766. Which of the following is the correct sequence of the terms as they appear in Article 51A(c) regarding the protection of India?
Explanation
Article fifty-one-A (c) uses the specific phrase "sovereignty, unity and integrity of India." This sequence mirrors the language used in the Preamble of the Constitution. It emphasizes the importance of maintaining the nation’s independence, its social and political cohesion, and its territorial wholeness. Citizens are expected to act in ways that protect these three fundamental pillars of the Indian state.
Q1767. Corals depend on a symbiotic relationship with microscopic algae called zooxanthellae. Which of the following statements about this relationship is incorrect?
Explanation
The relationship between corals and zooxanthellae is a vital mutualistic symbiosis. The algae live within the coral’s tissues, providing food through photosynthesis and assisting in waste removal. While they facilitate the calcification process, the coral polyps themselves are responsible for secreting the calcium carbonate that forms the reef structure. Without these algae, corals lose their primary energy source and perish.
Q1768. Arrange the following landmark tax reforms in India in chronological order of their introduction:
I. Introduction of Goods and Services Tax (GST)
II. Introduction of Value Added Tax (VAT) at the State level
III. Introduction of Service Tax
IV. Enactment of the Income Tax Act currently in force
I. Introduction of Goods and Services Tax (GST)
II. Introduction of Value Added Tax (VAT) at the State level
III. Introduction of Service Tax
IV. Enactment of the Income Tax Act currently in force
Explanation
The current framework of income tax was established decades ago, followed by the introduction of service tax in the 1990s to cover the growing service sector. State-level value added tax was implemented in the mid-2000s to modernize indirect taxation. Finally, the goods and services tax was launched in 2017 to create a unified national market and simplify multiple taxes.
Q1769. Which official chairs the Executive Council of the Nuclear Command Authority (NCA)?
Explanation
This high-ranking official leads the body responsible for executing the directives of the political leadership regarding the nuclear arsenal. In this role, the individual coordinates between various scientific, military, and administrative entities to ensure the readiness and effectiveness of the deterrent. This chairmanship highlights the central role of national security planning in the management and oversight of the country’s strategic and most sensitive defensive capabilities.
Q1770. Consider the following statements regarding education and learning centers in ancient Rajasthan:
I. Learning was largely transmitted orally in the early Vedic and post-Vedic periods.
II. Inscriptions mention grants of villages to Brahmanas, which served as centers of Vedic learning.
III. Jain Upashrayas later developed as significant centers for manuscript preservation and education.
IV. Technical education, such as metallurgy and architecture, was passed down through hereditary occupational guilds.
V. The state completely banned the teaching of astronomy and mathematics in urban centers.
Which of the above statement(s) is/are correct?
I. Learning was largely transmitted orally in the early Vedic and post-Vedic periods.
II. Inscriptions mention grants of villages to Brahmanas, which served as centers of Vedic learning.
III. Jain Upashrayas later developed as significant centers for manuscript preservation and education.
IV. Technical education, such as metallurgy and architecture, was passed down through hereditary occupational guilds.
V. The state completely banned the teaching of astronomy and mathematics in urban centers.
Which of the above statement(s) is/are correct?
Explanation
Education in ancient Rajasthan was diverse and often tied to social roles. Vedic knowledge was preserved orally and through village grants, while Jain Upashrayas became important for literature. Technical skills were taught within guilds. It is incorrect to claim the state banned astronomy; on the contrary, centers like Bhinmal were famous for these fields, showing that scientific inquiry was actively pursued.Answer key for these questions
| Q | Correct answer |
|---|---|
| 1761 | (c) Needle-like leaves |
| 1762 | (c) Personal Income Tax contributes nothing to the central tax pool due to high exemptions |
| 1763 | (c) India commits to lowering the threshold for nuclear weapons usage in tactical border conflicts. |
| 1764 | (a) IV, II, III, I |
| 1765 | (b) Nyaya |
| 1766 | (b) Sovereignty, Unity and Integrity |
| 1767 | (b) Zooxanthellae are entirely responsible for secreting the calcium carbonate skeleton of the reef |
| 1768 | (a) IV - III - II - I |
| 1769 | (b) National Security Advisor |
| 1770 | (a) I, II, III and IV only |
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.