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 PrelimsRajasthan History, Art and Culture · Rajasthan in the 18th and 19th Centuries
Q3981. Arrange the following states in the chronological order of signing the treaties of Subordinate Alliance with the British in 1817-18: I. Karauli II. Kota III. Mewar (Udaipur) IV. Jaipur Select the correct sequence from the options below:
Explanation
The process of signing Subordinate Alliance treaties with the British followed a specific chronological order in 1817 and 1818. Karauli was the first to sign in November 1817, followed by Kota in December 1817. Mewar entered the alliance in January 1818, while Jaipur signed its treaty later in April 1818, marking the gradual expansion of British paramountcy across the region.
RAS PrelimsAncient Indian History · Ancient Indian Art, Architecture and Science
Q3982. Which prominent ancient Indian mathematician and astronomer first formulated the concept that the Earth is a sphere that rotates on its own axis, causing the apparent movement of the stars?
Explanation
Aryabhata was a pioneering astronomer who proposed several revolutionary ideas in his treatise, the Aryabhatiya. He was the first to mathematically demonstrate that the Earth is a sphere and that it rotates on its own axis. He correctly explained that this axial rotation causes the stars to appear as though they are moving across the sky from east to west.
RAS PrelimsIndian Polity and Governance · Union-State Relations
Q3983. Consider the following matters: I. Construction and maintenance of means of communication of national or military importance. II. Measures to be taken for the protection of railways within the State. III. Provision of adequate facilities for instruction in the mother-tongue at the primary stage of education to linguistic minority groups. IV. Drawing up and execution of specified schemes for the welfare of Scheduled Tribes in the State. V. The day-to-day deployment of local police forces. Regarding which of the above matters can the Union executive give directions to the State executive?
Explanation
The Union can issue executive directions to states regarding the maintenance of national communications, protection of railways, and schemes for Scheduled Tribes and linguistic minorities. These directions ensure that national interests and constitutional protections for vulnerable groups are upheld. However, the day-to-day deployment of local police is a state subject and typically falls under the exclusive administrative control of the state government.
Q3984. Which of the following is NOT a feature of the Paris Agreement on Climate Change?
Explanation
The Paris Agreement relies on a system of transparency, collective progress reviews, and voluntary national commitments. It does not include a mechanism for imposing economic sanctions or legal penalties on countries that miss their targets. Instead, it emphasizes international cooperation, financial support for developing nations, and a five-year cycle of increasing ambition to drive global climate action and emissions reduction.
RAS PrelimsHealth, Environment and Agriculture · Biodiversity, Conservation and Sustainable Development
Q3985. The following question consists of two statements, Assertion (A) and Reason (R). Select the correct answer from the options given below: Assertion (A): The Wildlife (Protection) Amendment Act, 2022 included a new schedule specifically for CITES listed species. Reason (R): India is a signatory to CITES and is obligated to implement its provisions to regulate international trade in endangered species.
Explanation
The 2022 amendment to the Wildlife Protection Act introduced a new schedule specifically to accommodate species listed under CITES.
RAS PrelimsRajasthan History, Art and Culture · Rajasthan in the 18th and 19th Centuries
Q3986. Match the British officials in List I with their respective roles or events in Rajputana in List II:
British Official
Role/Event in Rajputana
A. Lord Wellesley
i. Initiated the Subordinate Isolation policy (1817)
B. Lord Hastings
ii. First to propose alliances during Second Maratha War (1803)
C. Charles Metcalfe
iii. First Political Agent in Mewar and Marwar
D. James Tod
iv. Chief negotiator of the 1817-18 treaties with Rajput states
Explanation
British officials played distinct roles in Rajputana. Lord Wellesley proposed early alliances in 1803, while Lord Hastings initiated the Subordinate Isolation policy in 1817. Charles Metcalfe acted as the chief negotiator for the 1817-18 treaties. James Tod is famously remembered as the first Political Agent in Mewar and Marwar, contributing extensively to the recorded history of the region.
RAS PrelimsAncient Indian History · Ancient Indian Art, Architecture and Science
Q3987. The Khandakhadyaka, a significant ancient Indian text on astronomy and mathematics, was authored by which of the following scholars?
Explanation
The Khandakhadyaka is a significant astronomical treatise authored by the renowned mathematician and astronomer Brahmagupta. Written in the seventh century, this work built upon earlier systems and provided practical methods for astronomical calculations. It was highly influential and was later translated into Arabic, contributing to the transmission of Indian mathematical and astronomical knowledge to the Islamic world and Europe.
RAS PrelimsIndian Polity and Governance · Union-State Relations
Q3988. Which of the following statements regarding the mutual delegation of executive functions between the Union and the States is incorrect?
Explanation
The Constitution allows for the mutual delegation of executive functions between the Union and the States, generally requiring the consent of the other party. While the President or Governor can entrust duties with consent, and Parliament can do so via law without state consent, a State Government cannot unilaterally entrust its functions to the Union. This ensures that the Union’s administrative burden is managed.
Q3989. Which of the following pairs concerning the primary natural sources of greenhouse gases is correctly matched?
Explanation
Natural wetlands are the largest natural source of methane globally. In these waterlogged environments, bacteria break down organic matter in the absence of oxygen, a process known as anaerobic decomposition. While other gases have natural cycles, such as carbon dioxide from respiration and volcanic activity, the link between wetlands and methane is a fundamental component of the Earth’s natural greenhouse gas balance.
RAS PrelimsHealth, Environment and Agriculture · Biodiversity, Conservation and Sustainable Development
Q3990. All of the following authorities are constituted under the Wildlife Protection Act, 1972, EXCEPT:
Explanation
The National Board for Wildlife, Central Zoo Authority, and National Tiger Conservation Authority are all statutory bodies established under the provisions of the Wildlife Protection Act, 1972. The National Green Tribunal, however, was established under a separate act in 2010 to handle environmental disputes. Therefore, it is the only entity in the list not constituted under the original 1972 Act.
Answer key for these questions
Q
Correct answer
3981
(a) I, II, III, IV
3982
(d) Aryabhata
3983
(d) I, II, III and IV only
3984
(d) It mandates immediate economic sanctions for countries that fail to meet their NDCs.
3985
(a) Both A and R are true and R is the correct explanation of A.
3986
(a) A-ii, B-i, C-iv, D-iii
3987
(c) Brahmagupta
3988
(c) Unilateral entrustment of functions to the Union by the State.
3989
(c) Methane - Anaerobic decomposition in natural wetlands
3990
(c) National Green Tribunal
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.
