Q2031. What is the fundamental structural unit of a DNA molecule?
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.
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Q2032. The Chahamana ruler who established the city of Ajayameru (Ajmer) and shifted his capital there from Shakambhari was:
Explanation
Ajayaraja II was a significant ruler of the Chahamana dynasty of Shakambhari. He is credited with founding the city of Ajayameru, modern-day Ajmer, in the early twelfth century. By shifting the capital from Shakambhari to Ajmer, he established a more strategically defensible and central administrative base, which allowed the Chauhans to expand their influence across the Rajasthan region.
Q2033. Which statement correctly describes the outcome of the conflict between Chandragupta Maurya and Seleucus Nicator?
Explanation
The military confrontation between Chandragupta Maurya and the Greek general Seleucus Nicator concluded with a diplomatic peace treaty around 305 BCE. Seleucus ceded the strategic territories of Arachosia, Paropamisadae, and Aria in exchange for five hundred war elephants. This agreement was further strengthened by a matrimonial alliance, establishing a lasting diplomatic relationship between the Mauryan Empire and the Hellenistic world.
Q2034. Who among the following administers the oath of office to the President of India?
Explanation
Article 60 mandates that every President takes an oath or affirmation before entering office. This ceremony is conducted by the Chief Justice of India. In the absence of the Chief Justice, the senior-most judge of the Supreme Court performs this duty. The oath emphasizes preserving, protecting, and defending the Constitution and the law of the land for the people.
Q2035. Consider the following statements regarding Plantation agriculture:
I. It involves the cultivation of a single cash crop on a large scale.
II. It requires large capital investment and high managerial ability.
III. It is primarily practiced in the temperate regions of Europe and North America.
Which of the above statement(s) is/are correct?
I. It involves the cultivation of a single cash crop on a large scale.
II. It requires large capital investment and high managerial ability.
III. It is primarily practiced in the temperate regions of Europe and North America.
Which of the above statement(s) is/are correct?
Explanation
Plantation agriculture is a specialized commercial system focusing on a single cash crop for export. It requires significant capital investment, advanced managerial skills, and scientific methods. These farms are typically large estates established in tropical and subtropical regions. Unlike temperate farming, plantations were historically developed by colonial powers to supply global markets.
Q2036. Consider the following statements regarding vertical fiscal imbalance in India:
I. It arises because the Central government is assigned taxes with higher elasticity and wider bases.
II. States are assigned expenditure responsibilities that exceed their independent revenue-generating capacities.
III. The Constitution provides for the Finance Commission as the sole mechanism to resolve this imbalance.
Which of the combinations given above is/are correct?
I. It arises because the Central government is assigned taxes with higher elasticity and wider bases.
II. States are assigned expenditure responsibilities that exceed their independent revenue-generating capacities.
III. The Constitution provides for the Finance Commission as the sole mechanism to resolve this imbalance.
Which of the combinations given above is/are correct?
Explanation
Vertical fiscal imbalance exists because the Central government is assigned major taxes with higher revenue potential, such as income and corporation tax. Conversely, States have extensive responsibilities in sectors like health and education. While the Finance Commission is a key mechanism, other tools like discretionary grants and Centrally Sponsored Schemes also play a role.
Q2037. Consider the following statements regarding the DNA double helix:
I. The two strands run in an antiparallel direction.
II. The backbone is constituted by sugar-phosphate.
III. The pitch of the helix is 3.4 nanometers.
Which of the above statements are correct?
I. The two strands run in an antiparallel direction.
II. The backbone is constituted by sugar-phosphate.
III. The pitch of the helix is 3.4 nanometers.
Which of the above statements are correct?
Explanation
The B-form DNA double helix exhibits several defining structural characteristics essential for its biological function. The two strands run in opposite directions, known as an antiparallel orientation. The external backbone is composed of repeating deoxyribose sugar and phosphate units. Furthermore, the helix completes one full turn every 3.4 nanometers, accommodating approximately ten base pairs per turn.
Q2038. Match List I with List II and select the correct answer using the codes given below:
| Battles of Prithviraj III | Opposing Rulers/Generals |
|---|---|
| A. Battle of Mahoba | i. Muhammad Ghori (Defeated) |
| B. First Battle of Tarain | ii. Muhammad Ghori (Victorious) |
| C. Second Battle of Tarain | iii. Paramardi Deva |
| D. Battle against the Bhadanakas | iv. A rebellious neighboring tribe |
Explanation
Prithviraj III engaged in several decisive conflicts during his reign. In 1182, he defeated the Chandela ruler Paramardi Deva in the Battle of Mahoba. He later faced Muhammad Ghori twice at Tarain, winning the first encounter in 1191 but losing the second in 1192. Additionally, he successfully suppressed the Bhadanakas, a rebellious tribe threatening the northern borders of his kingdom.
Q2039. Consider the following statements regarding Chandragupta Maurya:
I. He converted to Jainism in his later years.
II. He migrated to Shravanabelagola in the company of the Jain monk Bhadrabahu.
III. He ended his life by the Jain practice of Sallekhana.
Which of the above statements are correct?
I. He converted to Jainism in his later years.
II. He migrated to Shravanabelagola in the company of the Jain monk Bhadrabahu.
III. He ended his life by the Jain practice of Sallekhana.
Which of the above statements are correct?
Explanation
Traditional Jain accounts state that Chandragupta Maurya embraced Jainism toward the end of his life under the influence of the monk Bhadrabahu. He abdicated his throne and traveled to Shravanabelagola in modern Karnataka. Following the rigorous spiritual discipline of the faith, he eventually died by performing Sallekhana, which involves voluntary fasting unto death to achieve spiritual liberation from worldly existence.
Q2040. Which of the following statements regarding the qualifications for election as President is incorrect?
Explanation
To be eligible for the presidency, a person must be an Indian citizen and at least thirty-five years old. A crucial requirement is being qualified for election as a member of the Lok Sabha, not the Rajya Sabha. Additionally, the candidate must not hold any office of profit under the central or state governments or any other local authority.Answer key for these questions
| Q | Correct answer |
|---|---|
| 2031 | (c) Nucleotide |
| 2032 | (d) Ajayaraja II |
| 2033 | (d) A peace treaty was signed where Seleucus ceded North-Western territories. |
| 2034 | (d) The Chief Justice of India |
| 2035 | (a) I and II only |
| 2036 | (a) I and II only |
| 2037 | (d) I, II and III |
| 2038 | (a) A-iii, B-i, C-ii, D-iv |
| 2039 | (d) I, II and III |
| 2040 | (c) He must be qualified for election as a member of the Rajya Sabha. |
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.