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 PrelimsIndian Economy · Measurement of Development: HDI and Related Indices
Q761. Consider the following statements regarding the dimensions and calculation of the Human Development Index: I. The health dimension is assessed entirely by life expectancy at birth. II. The education dimension incorporates mean years of schooling for adults aged 25 and older. III. The education dimension incorporates expected years of schooling for children of school-entering age. IV. The standard of living dimension is measured by Gross Domestic Product per capita. V. The overall index is calculated as the geometric mean of its three dimensional indices. Which of the above combinations of statements is incorrect?
Explanation
The composite index for human development assesses health via life expectancy and education through both mean and expected schooling years. However, it utilizes Gross National Income per capita rather than Gross Domestic Product to reflect the actual income available to residents. The final score is derived by calculating the geometric mean of these three dimensions to minimize the effects of substitution.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q762. Which memory type provides the fastest access speed for the CPU during data processing?
Explanation
Cache memory provides the highest access speed for the processor by storing frequently used data and instructions extremely close to the CPU cores. While RAM is faster than secondary storage devices like SSDs or HDDs, cache memory is designed to minimize the time the CPU spends waiting for data. This proximity significantly enhances overall system performance during complex computational tasks.
RAS PrelimsRajasthan History, Art and Culture · Sources of Rajasthan History
Q763. Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Epigraphy is considered one of the most reliable sources for reconstructing ancient and early medieval history. Reason (R): Inscriptions are generally contemporaneous to the events they describe and are highly resistant to tampering compared to literary manuscripts. In the context of the above, which one of the following is correct?
Explanation
Epigraphy provides highly reliable historical data because inscriptions are usually created during the actual time of the events they record. Unlike literary manuscripts, which can be altered during successive copying, stone inscriptions are durable and difficult to tamper with once engraved. This makes them objective primary sources for confirming names, dates, and administrative details of ancient and medieval periods.
RAS PrelimsAncient Indian History · Vedic Age
Q764. The discovery of which metal played a crucial role in clearing forests and advancing settled agriculture in the Later Vedic period?
Explanation
The discovery and use of iron, referred to as Krishnayas, revolutionized life in the Later Vedic period. Iron tools like axes and ploughshares enabled the clearing of dense forests in the Gangetic valley. This technological advancement facilitated large-scale settled agriculture and supported the growth of surplus production. Consequently, it provided the economic foundation for the rise of territorial kingdoms and urbanization.
RAS PrelimsIndian Polity and Governance · Fundamental Rights
Q765. Which of the following pairs is incorrectly matched regarding writs and their meanings?
Explanation
The literal meaning of Certiorari is to be informed or to be certified. It is a writ issued by a higher court to squash the order of a lower court. In contrast, the writ of Prohibition means to forbid and is issued to prevent a lower court from exceeding its jurisdiction or acting against natural justice.
RAS PrelimsWorld Geography · Major Rivers and Lakes of the World
Q766. Match List-I (Type of Lake) with List-II (Example) and select the correct option:
Type of Lake
Example
A. Tectonic Lake
i. Crater Lake
B. Volcanic (Caldera) Lake
ii. Lake Superior
C. Glacial Lake
iii. Caspian Sea
D. Oxbow Lake
iv. Kanwar Lake
Explanation
Lakes are classified based on their formation processes. Tectonic lakes, like the Caspian Sea, originate from crustal movements. Volcanic lakes, such as Crater Lake, form in calderas. Glacial lakes, including Lake Superior, result from ice sheet scouring. Oxbow lakes, like Kanwar Lake, are formed by river meandering. These diverse origins dictate the shape, depth, and chemistry of global lakes.
RAS PrelimsIndian Economy · Measurement of Development: HDI and Related Indices
Q767. Match the items in List I with those in List II:
HDI Dimension
Indicator Used
A. Long and healthy life
i. Mean years of schooling
B. Knowledge (Adults)
ii. Gross National Income per capita
C. Knowledge (Children)
iii. Expected years of schooling
D. Decent standard of living
iv. Life expectancy at birth Options:
Explanation
Each dimension of the primary human development metric is measured by specific indicators. Health is assessed using life expectancy at birth, while the educational component looks at both mean years for adults and expected years for children. Finally, the standard of living is evaluated through national income per capita adjusted for purchasing power, providing a comprehensive view of overall societal progress.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q768. What is the primary effect of adding more RAM to a computer system experiencing high page fault rates?
Explanation
Adding more physical RAM increases the amount of high-speed memory available for active processes, which reduces the system’s need to swap data to slower secondary storage. When page fault rates are high, the computer spends excessive time accessing virtual memory on the hard drive. Increasing RAM allows more data to stay in main memory, improving overall system responsiveness.
RAS PrelimsRajasthan History, Art and Culture · Sources of Rajasthan History
Q769. The Barnala Yupa inscriptions found in the Jaipur region provide valuable historical data. What do these Yupa pillars primarily commemorate?
Explanation
The Barnala Yupa inscriptions, discovered in the Jaipur region, are sacrificial pillars that commemorate the performance of traditional Vedic rituals. Specifically, they mention the Triratra sacrifice, conducted by local leaders or priests. These pillars provide crucial evidence regarding the continued practice of Brahmanical rites and the socio-religious influence of the Vedic tradition in ancient Rajasthan during the early centuries AD.
RAS PrelimsAncient Indian History · Vedic Age
Q770. In the Later Vedic period, the term "Bali", which originally meant a voluntary offering, evolved into:
Explanation
In the Early Vedic period, Bali was a voluntary offering made by tribesmen to their chief. However, during the Later Vedic period, this practice transformed into a mandatory tax or tribute. This shift reflected the increasing power of the king and the development of a more formal administrative structure. It signifies the transition from a gift-based economy to a centralized fiscal system.
Answer key for these questions
Q
Correct answer
761
(c) IV only
762
(d) Cache Memory
763
(a) Both A and R are true and R is the correct explanation of A.
764
(a) Iron (Krishnayas)
765
(a) Certiorari - To forbid
766
(a) A-iii, B-i, C-ii, D-iv
767
(a) A-iv, B-i, C-iii, D-ii
768
(a) Reduced virtual memory reliance
769
(b) The performance of Vedic sacrifices (like Triratra).
770
(b) A mandatory tax or tribute collected by the ruling king.
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.
