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 Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9491. Consider the following statements about sex ratio facts in Rajasthan: I. The overall sex ratio of Rajasthan increased from 921 in 2001 to 928 in 2011. II. The rural sex ratio (933) is higher than the urban sex ratio (914). III. The child sex ratio declined from 909 in 2001 to 888 in 2011. IV. Dholpur has the lowest overall sex ratio in the state. V. Dungarpur is the only district with a sex ratio exceeding 1000. Which of the combinations of the above statements is incorrect?
Explanation
Between 2001 and 2011, Rajasthan saw an increase in the overall sex ratio and a decline in the child sex ratio. Rural areas generally have better ratios than urban centers. While Dungarpur has the highest sex ratio in the state at nine hundred ninety-four, it does not actually exceed one thousand. Thus, the claim that any district currently surpasses parity is incorrect.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9492. Arrange the following premier scientific organizations in chronological order of their formal establishment in post-independence India (or transitioning to their modern national role): I. Indian Space Research Organisation (ISRO) II. Defence Research and Development Organisation (DRDO) III. Department of Atomic Energy (DAE) IV. Council of Scientific and Industrial Research (CSIR) - transitioning to national lab network Select the correct order from the given options:
Explanation
India’s scientific institutions were established in stages following independence. The CSIR began its national lab network expansion in the late 1940s. The Department of Atomic Energy was formally created in 1954. The Defence Research and Development Organisation followed in 1958 to consolidate defense research. Finally, the Indian Space Research Organisation was established in 1969, marking the formal start of the space agency.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9493. According to the 2011 Census, what is the rural sex ratio of Rajasthan?
Explanation
In the 2011 Census, the rural sex ratio of Rajasthan was recorded at nine hundred thirty-three females per one thousand males. This figure is significantly higher than the urban sex ratio, which stands at nine hundred fourteen. The relatively better rural ratio is often attributed to traditional social structures and migration patterns, where males move to urban areas for work while females stay.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9494. The first Indian Institute of Technology (IIT) was formally inaugurated in 1951 at the site of the former Hijli Detention Camp. Where is this campus located?
Explanation
The first Indian Institute of Technology was established at Kharagpur in West Bengal. It was formally inaugurated in 1951 on the site of the former Hijli Detention Camp, which had served as a prison during the struggle for independence. This location was chosen to transform a place of colonial confinement into a premier center for technical education and national progress.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9495. Match the districts in List I with their lowest sex ratios in 2011 in List II:
Districts
Lowest Sex Ratios 2011
A. Dholpur
i. 852
B. Jaisalmer
ii. 861
C. Karauli
iii. 846
D. Bharatpur
iv. 880
Codes:
Explanation
Several districts in eastern and western Rajasthan recorded very low sex ratios in 2011. Dholpur had the state’s lowest at eight hundred forty-six. Jaisalmer followed with eight hundred fifty-two, while Karauli and Bharatpur recorded eight hundred sixty-one and eight hundred eighty respectively. These low figures indicate significant gender imbalances in these particular regions, necessitating targeted social and administrative interventions.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9496. The establishment of the Centre for Development of Advanced Computing (C-DAC) and the subsequent creation of the PARAM series of supercomputers was a direct effect of which of the following events?
Explanation
The creation of C-DAC and the PARAM supercomputers was a direct response to international technology restrictions. In the late 1980s, the United States denied India’s request to purchase a Cray X-MP supercomputer for weather forecasting, citing strategic concerns. This refusal led the Indian government to prioritize the development of indigenous high-performance computing, resulting in the successful launch of the PARAM series.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9497. Which of the following statements best reflects the central philosophy of the Scientific Policy Resolution (SPR) of 1958 drafted by the Government of India?
Explanation
The Scientific Policy Resolution of 1958 reflected the government’s belief that science and technology are essential for national prosperity. Its central philosophy was to ensure that the country could fully benefit from scientific advancements through systematic cultivation and application. By promoting scientific research in all its aspects, the resolution aimed to solve social and economic problems and modernize the national infrastructure.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9498. Identify the incorrect statement regarding the historical population growth of Rajasthan.
Explanation
Rajasthan’s population growth history includes a peak growth rate during the 1971-1981 decade. Contrary to the idea of continuous increase, the decadal growth rate has actually been declining steadily since 1981. This downward trend reflects the gradual success of family planning initiatives and rising literacy levels, which have helped slow the pace of population expansion over the last few decades.
RAS PrelimsModern Indian History · Science and Technology in Independent India
Q9499. Four of the following crops were primarily targeted for yield improvement during the initial phase of the Green Revolution in India. Identify the odd one out.
Explanation
The initial phase of the Green Revolution in India focused specifically on staple food crops to address chronic food shortages and achieve self-sufficiency. Significant yield improvements were achieved in wheat and rice through high-yielding varieties, followed by advances in maize and other cereals. Conversely, horticultural crops like apples were not the primary target of this intensive cereal-centric agricultural transformation programme.
RAS PrelimsRajasthan Geography · Population of Rajasthan: Growth, Density, Literacy and Sex Ratio
Q9500. Consider the following statements regarding the social composition of Rajasthan: I. The Scheduled Caste population in Rajasthan is approximately 1.22 crore. II. The Scheduled Tribe population is approximately 92 lakh. III. The percentage of the SC population is lower than the ST population in the state. Which of the combinations of the above statements is correct?
Explanation
As of 2011, Rajasthan’s social composition includes approximately one crore twenty-two lakh Scheduled Caste individuals and ninety-two lakh Scheduled Tribe individuals. Statistically, the percentage of the Scheduled Caste population is higher than that of the Scheduled Tribe population in the state. Understanding these absolute numbers and their relative proportions is vital for government planning and the effective implementation of reserved category benefits.
Answer key for these questions
Q
Correct answer
9491
(d) Only V
9492
(a) IV, III, II, I
9493
(a) 933
9494
(c) Kharagpur
9495
(a) A-iii, B-i, C-ii, D-iv
9496
(a) The US denial of export clearance for Cray X-MP supercomputers to India
9497
(d) To secure all benefits from the acquisition and application of scientific knowledge
9498
(d) Since 1981, there has been a continuous increase in the decadal growth rate.
9499
(b) Apple
9500
(b) I and II 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.
