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 PrelimsModern Indian History · Science and Technology in Independent India
Q9441. Consider the following statements regarding the Green Revolution technology in India: I. It relied heavily on the introduction of High Yielding Variety (HYV) seeds of wheat and rice. II. It led to a significant decrease in the consumption of chemical fertilizers and pesticides. III. M.S. Swaminathan played a crucial role in adapting these technologies to Indian conditions. Which of the above statement(s) is/are correct?
Explanation
The Green Revolution transformed Indian agriculture by introducing high-yielding varieties of wheat and rice. M.S. Swaminathan was instrumental in adapting these technologies to suit the local climate and conditions. Contrary to reducing chemical usage, this intensive farming model required a significant increase in the application of fertilizers and pesticides to ensure the high productivity of the new seeds.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9442. Arrange the following districts of Rajasthan in descending order of their population density as per the 2011 Census: A. Alwar B. Bharatpur C. Dausa D. Jaipur Select the correct order from the options given below:
Explanation
In 2011, the eastern districts of Rajasthan exhibited the highest population densities. When arranged in descending order, Jaipur leads with the highest concentration of people, followed by Bharatpur and Dausa. Alwar completes this group with the fourth-highest density. These rankings reflect the favorable agricultural conditions and urban development found in the eastern part of the state compared elsewhere.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9443. Which of the following missile systems was NOT developed as part of the original Integrated Guided Missile Development Programme (IGMDP) initiated in 1983?
Explanation
The Integrated Guided Missile Development Programme, launched in 1983, aimed to achieve self-reliance in missile technology. It focused on five core systems, including Agni, Prithvi, Trishul, Nag, and Akash. However, BrahMos is a separate project. It was developed as a joint venture between India and Russia much later, focusing on supersonic cruise missile technology rather than the original programme.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9444. Consider the following statements regarding the distribution of Scheduled Castes and Scheduled Tribes in Rajasthan: I. Scheduled Castes constitute approximately 17.8 percent of the total population. II. Scheduled Tribes constitute approximately 13.5 percent of the total population. III. Banswara has the highest percentage of Scheduled Tribe population in the state. IV. Ganganagar has the highest percentage of Scheduled Caste population in the state. Which of the combinations of the above statements is correct?
Explanation
Scheduled Castes are about 17.8 per cent and Scheduled Tribes about 13.5 per cent of the population of Rajasthan. Banswara has the highest percentage of ST population and Ganganagar the highest percentage of SC population. All four statements are correct.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9445. Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Vikram Sarabhai strongly emphasized the application of space technology for national development and mass education over military applications. Reason (R): He was instrumental in initiating the Satellite Instructional Television Experiment (SITE) to bring education to remote Indian villages. In the context of the above statements, which one of the following is correct?
Explanation
Vikram Sarabhai envisioned space technology as a powerful tool for social development and education. He believed that satellites could bridge the information gap in rural areas effectively. The Satellite Instructional Television Experiment exemplified this philosophy by delivering educational content to remote villages via satellite. This practical application directly supported his goal of using advanced technology to improve national welfare.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9446. What was the decadal population growth rate of Rajasthan during the period 2001-2011?
Explanation
The decadal population growth rate of Rajasthan from 2001 to 2011 was 21.3 per cent.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9447. Which of the following statements correctly describes India’s first satellite, Aryabhata?
Explanation
Aryabhata, India’s maiden satellite, was a significant milestone in indigenous engineering and design. Although domestic scientists and engineers completely fabricated the satellite in Bangalore, the country lacked an orbital launch vehicle at that time. Consequently, the Soviet Union provided the necessary launch services using a Kosmos-3M rocket. This successful collaboration marked the beginning of India’s journey into space science.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9448. Consider the following statements concerning the census history of Rajasthan from 1901 to 2011: I. The population of Rajasthan in 1901 was approximately 1.03 crore. II. The highest decadal growth rate was recorded in the 1971-1981 decade. III. The population crossed the 5 crore mark in the 2001 census. IV. The decadal growth rate declined continuously after the 1981 census. V. The 1911-1921 decade is recognized as the demographic divide in the state’s history. Which of the combinations of the above statements is correct?
Explanation
Rajasthan had about 1.03 crore people in 1901, the highest decadal growth was in 1971-81, the population crossed 5 crore in 2001, the growth rate has fallen since 1981 and 1911-21 is seen as the demographic divide. All five statements are correct.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9449. Consider the following statements regarding India’s launch vehicles PSLV and GSLV: I. The PSLV is a four-stage launch vehicle utilizing both solid and liquid propulsion stages. II. The GSLV was developed primarily to place heavier satellites into Geostationary Transfer Orbits. III. The PSLV has never been used for interplanetary missions or lunar probes. IV. The development of indigenous cryogenic engine technology was critical for the success of the GSLV programme. Which of the above statement(s) is/are incorrect?
Explanation
The Polar Satellite Launch Vehicle is a highly reliable four-stage rocket using solid and liquid propulsion. It has been successfully utilized beyond low earth orbit for historic interplanetary missions like the Mars Orbiter Mission and lunar probes like Chandrayaan-1. Therefore, claiming it has never been used for such missions is inaccurate, as it remains a versatile workhorse for ISRO operations.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9450. Which of the following was the first supercomputer developed indigenously by the Centre for Development of Advanced Computing (C-DAC) in 1991?
Explanation
The PARAM 8000 stands as the first indigenous supercomputer developed by the Centre for Development of Advanced Computing. Launched in 1991, it utilized a parallel processing architecture to achieve high computational speeds. This development marked India’s entry into the elite group of nations capable of building supercomputers, providing a vital tool for scientific research, weather forecasting, and strategic applications.
Answer key for these questions
Q
Correct answer
9441
(c) I and III
9442
(a) D, B, C, A
9443
(c) BrahMos
9444
(c) I, II, III, and IV
9445
(a) Both A and R are true and R is the correct explanation of A.
9446
(a) 21.3 percent
9447
(d) It was entirely designed and fabricated in India but launched by the Soviet Union.
9448
(d) I, II, III, IV, and V
9449
(b) III only
9450
(c) PARAM 8000
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.
