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
Q791. Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The final Human Development Index is computed using the geometric mean of the three dimensional indices rather than the arithmetic mean. Reason (R): The geometric mean reduces the level of substitutability between dimensions, ensuring that poor performance in one dimension is not fully compensated by good performance in another.
Explanation
Using the geometric mean for calculating the final composite score ensures that a country must perform well across all dimensions. Unlike an arithmetic average, this method penalizes uneven progress, meaning a very high income cannot fully compensate for poor health or education outcomes. This approach encourages balanced development and more accurately reflects the multi-faceted nature of human well-being and capability.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q792. What is the primary function of a computer’s motherboard?
Explanation
The motherboard acts as the central communication backbone for a computer system, providing the physical platform and electrical paths required for components to interact. It houses the CPU, memory modules, and expansion cards while offering ports for peripheral devices and storage. By facilitating data exchange between all hardware elements, the motherboard ensures the integrated functionality of the entire computer architecture.
RAS PrelimsRajasthan History, Art and Culture · Sources of Rajasthan History
Q793. Match List I with List II:
Inscription
Language/Script context
A. Ghosundi Inscription
i. Sanskrit, Brahmi script
B. Mandasor Inscription
ii. Sanskrit, details Guhila dynasty
C. Bijolia Inscription
iii. Sanskrit, details Chauhan dynasty
D. Chirwa Inscription
iv. Sanskrit, mentions silk weavers
Choose the correct code:
Explanation
The Ghosundi Inscription is written in Sanskrit and Brahmi script, while the Mandasor Inscription mentions the migration of silk weavers. The Bijolia Inscription is famous for detailing the history of the Chauhan dynasty and providing ancient geographical names. Finally, the Chirwa Inscription provides genealogical information about the Guhila dynasty of Mewar, documenting the lineage of rulers like Jaitra Singh.
RAS PrelimsAncient Indian History · Vedic Age
Q794. Arrange the following Ashramas (stages of life) in their correct sequential order as they were conceptualized in Later Vedic and post-Vedic texts: I. Vanaprastha II. Sanyasa III. Brahmacharya IV. Grihastha Select the correct order from the options below:
Explanation
The Ashrama system outlined four distinct stages of a person’s life in ancient Indian thought. It began with Brahmacharya, the student phase focused on education. This was followed by Grihastha, the householder stage involving family and social duties. Next was Vanaprastha, or partial retirement into the forest, and finally Sanyasa, representing total renunciation of worldly ties to seek spiritual liberation.
RAS PrelimsIndian Polity and Governance · Fundamental Rights
Q795. The doctrine of eclipse, applied in constitutional law, is an effect primarily associated with which Article?
Explanation
The doctrine of eclipse is associated with Article 13. It suggests that a pre-constitutional law inconsistent with fundamental rights is not dead but becomes dormant or eclipsed. If the fundamental right is later amended or removed, the law becomes active again. This doctrine primarily applies to pre-constitutional laws but has been extended to post-constitutional laws in certain contexts.
RAS PrelimsWorld Geography · Major Rivers and Lakes of the World
Q796. The River Thames, a major river of historical importance in Europe, passes through which globally significant capital city?
Explanation
The River Thames is the most famous waterway in the United Kingdom and plays a central role in the nation’s geography and history. It flows through southern England and passes directly through the capital city, London. The river is tidal in its lower reaches and has historically served as a critical route for international trade and domestic transport.
RAS PrelimsIndian Economy · Measurement of Development: HDI and Related Indices
Q797. Which statistical technique is applied to normalize the values of the components (Life Expectancy, Education, Income) to a scale between 0 and 1 before calculating the final HDI?
Explanation
To combine diverse indicators like years of schooling and currency values into a single index, they must be converted to a uniform scale. This is achieved by comparing each actual value against predefined minimum and maximum goalposts. This technique ensures that every component is expressed as a decimal between zero and one, allowing them to be mathematically aggregated into the final score.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q798. When a computer runs out of physical RAM, which hardware mechanism allows it to temporarily use secondary storage as memory?
Explanation
Virtual memory is a management technique that allows a computer to compensate for physical RAM shortages by temporarily transferring data from RAM to disk storage. This process creates an illusion of larger memory capacity for applications, enabling the system to run more complex programs simultaneously. While slower than physical RAM, it prevents system crashes by managing memory resources more dynamically.
RAS PrelimsRajasthan History, Art and Culture · Sources of Rajasthan History
Q799. Which of the following inscriptions famously traces the origin of the Chauhan dynasty to the ‘Vatsa gotra’ Brahmins?
Explanation
The Bijolia Inscription, dated 1170 AD, is a pivotal source for the history of the Chauhans of Shakambhari. It explicitly traces the origin of the Chauhan dynasty to the Vatsa gotra Brahmins, providing a legendary context for their lineage. This inscription also lists numerous ancient towns, offering a comprehensive geographical and genealogical record of the medieval Chauhan kingdom in Rajasthan.
RAS PrelimsAncient Indian History · Vedic Age
Q800. Which deity rose to absolute supreme prominence as the creator of the universe in the Later Vedic pantheon?
Explanation
In the Later Vedic pantheon, the focus of worship shifted from naturalistic deities like Indra and Agni to more abstract creator figures. Prajapati emerged as the supreme deity, regarded as the creator of the universe. This change reflected the increasing complexity of Vedic theology and the growing emphasis on the ritual process as a means of maintaining the cosmic order.
Answer key for these questions
Q
Correct answer
791
(a) Both A and R are true and R is the correct explanation of A.
792
(c) Connects all hardware components
793
(d) A-i, B-iv, C-iii, D-ii
794
(b) III, IV, I, II
795
(b) Article 13
796
(d) London
797
(d) Min-Max scaling
798
(d) Virtual Memory
799
(c) Bijolia Inscription
800
(c) Prajapati
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.
