Q3511. Under the revised 2020 MSME classification, an enterprise is classified as a ‘Medium’ enterprise if:
RAS Prelims MCQ Practice
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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Q3512. Photochemical smog is characterized by the presence of which secondary pollutant?
Explanation
Photochemical smog is a complex mixture of pollutants formed when nitrogen oxides and volatile organic compounds react in the presence of sunlight. This type of haze contains several harmful secondary substances. One particularly toxic compound is known for causing eye irritation and damaging plant tissues. Its presence is a key indicator of the chemical reactions taking place in polluted urban air.
Q3513. Match List I with List II and select the correct answer using the codes given below.
| Chola Administrative Unit | Description |
|---|---|
| A. Mandalam | i. A group of contiguous villages |
| B. Valanadu | ii. A province or large regional territory |
| C. Nadu | iii. An agricultural district |
| D. Kurram | iv. A larger territorial division created by bifurcating provinces |
Explanation
The Chola administration was hierarchical and well-organized. The empire was divided into provinces called Mandalams. These were subdivided into Valanadus, which were larger territorial blocks. The basic agricultural district was known as a Nadu, which consisted of several smaller groups of villages called Kurrams. This structured system allowed the Chola monarchs to maintain centralized control while facilitating efficient local governance and revenue collection throughout their extensive coastal and inland territories.
Q3514. In the context of judicial relations between the Supreme Court and High Courts, which of the following is a correct statement?
Explanation
Under Article 139A, the Supreme Court has the power to transfer cases pending before one High Court to another High Court. It can also withdraw cases pending in High Courts to itself if they involve substantially the same questions of law. High Courts are not administratively subordinate to the Supreme Court but are part of an integrated, yet independent, judicial hierarchy.
Q3515. The Mississippi River system, an extensive inland waterway in the United States, primarily facilitates transport southwards to industrial ports located on the coast of the:
Explanation
The Mississippi River system, along with its major tributaries like the Ohio and Missouri rivers, forms a vast navigable network in the central United States. It primarily facilitates the southward movement of agricultural products and industrial goods toward the Gulf of Mexico. This route provides the US Midwest with an efficient water-borne link to international trade through ports like New Orleans.
Q3516. Regarding indoor air pollution, consider the following statements:
I. Radon gas is a natural source of indoor air pollution.
II. Biomass burning in rural kitchens is a major cause in developing countries.
III. Indoor air pollution cannot cause chronic obstructive pulmonary disease (COPD).
Which of the above statement(s) is/are correct?
I. Radon gas is a natural source of indoor air pollution.
II. Biomass burning in rural kitchens is a major cause in developing countries.
III. Indoor air pollution cannot cause chronic obstructive pulmonary disease (COPD).
Which of the above statement(s) is/are correct?
Explanation
Air quality inside buildings can be worse than outside due to various factors. Natural sources like radioactive gases seeping from the ground and the use of solid fuels for cooking in poorly ventilated spaces are major concerns. Long-term exposure to these pollutants is a well-documented cause of serious respiratory conditions, including chronic lung diseases that significantly impact the health of vulnerable populations.
Q3517. Which of the following statements regarding the administration of Rajaraja I is incorrect?
Explanation
Rajaraja I is noted for his administrative efficiency, including a major land survey and the division of the empire into Mandalams. He maintained a strong standing army with various specialized corps. However, he did not abolish local village assemblies; instead, the Chola system was unique for its high degree of local autonomy. Assemblies like the Ur and Sabha continued to manage local affairs, irrigation, and justice under the central government’s supervision.
Q3518. What is the fundamental difference in the writ jurisdiction of the Supreme Court (Article 32) and the High Courts (Article 226)?
Explanation
The writ jurisdiction of the Supreme Court under Article 32 is narrower in scope as it is limited to the enforcement of Fundamental Rights. In contrast, High Courts under Article 226 have a broader jurisdiction; they can issue writs not only for Fundamental Rights but also for any other purpose, which includes the enforcement of ordinary legal or constitutional rights.
Q3519. The Rhine waterway forms a vital commercial artery for several European countries. Which of the following countries does the Rhine river NOT flow through or form a border for?
Explanation
The Rhine River originates in the Swiss Alps and flows northward through several European countries, including Switzerland, Germany, and the Netherlands, before reaching the North Sea. It also forms a portion of the border between Germany and France. Italy, however, is located to the south of the Alps and is not part of the Rhine’s drainage basin or its navigable transport network.
Q3520. What is the primary role of the Public Sector Undertakings (PSUs) in the post-1991 era in India?
Explanation
In the post-1991 economic era, the role of Public Sector Undertakings has shifted from maintaining a broad monopoly to focusing on strategic and core sectors. PSUs are now expected to operate on a commercial basis, emphasizing efficiency and profitability. Their primary purpose is to manage critical infrastructure where private investment may be insufficient, while competing with private players in other areas of economy.Answer key for these questions
| Q | Correct answer |
|---|---|
| 3511 | (c) Investment is up to 50 crore and turnover is up to 250 crore |
| 3512 | (b) Peroxyacetyl nitrate (PAN) |
| 3513 | (a) A-ii, B-iv, C-iii, D-i |
| 3514 | (c) The Supreme Court can transfer a case pending in one High Court to another High Court. |
| 3515 | (c) Gulf of Mexico |
| 3516 | (a) I and II only |
| 3517 | (d) He systematically abolished all local village assemblies to establish absolute central autocracy. |
| 3518 | (d) The Supreme Court can issue writs only for fundamental rights, whereas High Courts can issue for other rights. |
| 3519 | (d) Italy |
| 3520 | (d) Strategic and core infrastructure operations on a commercial basis. |
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.