Q5691. Which specific atmospheric feature steers the Western Disturbances into the Indian subcontinent during the winter season?
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Q5692. Consider the following statements:
Statement I: H.G. Khorana was the first scientist to chemically synthesize oligonucleotides.
Statement II: His techniques laid the foundational groundwork for the development of the Polymerase Chain Reaction (PCR).
Which of the following is correct?
Statement I: H.G. Khorana was the first scientist to chemically synthesize oligonucleotides.
Statement II: His techniques laid the foundational groundwork for the development of the Polymerase Chain Reaction (PCR).
Which of the following is correct?
Explanation
Dr. Khorana was a pioneer in the chemical synthesis of oligonucleotides, developing techniques that allowed for precise control over nucleic acid sequences. These methods were foundational to the later development of the Polymerase Chain Reaction, which revolutionized genetic research. His ability to build DNA from scratch transformed molecular biology, providing the essential tools needed for modern genetic engineering and analysis.
Q5693. Consider the following statements regarding the successor states of the Bahmani Kingdom (the five Deccan Sultanates):
I. Berar was the first state to break away from the Bahmani Kingdom.
II. Golconda was absorbed by the Mughal Empire during the reign of Akbar.
III. Ahmadnagar successfully defended itself against Mughal incursions under the leadership of Chand Bibi.
IV. Bidar was the last of the five Sultanates to declare its independence.
Which of the above statement(s) is/are correct?
I. Berar was the first state to break away from the Bahmani Kingdom.
II. Golconda was absorbed by the Mughal Empire during the reign of Akbar.
III. Ahmadnagar successfully defended itself against Mughal incursions under the leadership of Chand Bibi.
IV. Bidar was the last of the five Sultanates to declare its independence.
Which of the above statement(s) is/are correct?
Explanation
Berar was the first Sultanate to declare independence, and Bidar was the last. Ahmadnagar resisted the Mughals for a time under the heroic leadership of Chand Bibi. However, Golconda was not absorbed during Akbar’s reign; it maintained its independence much longer, finally falling to the Mughal Emperor Aurangzeb in 1687. These Sultanates represent the complex political landscape of the Deccan during the transition to Mughal dominance.
Q5694. Consider the following statements regarding the Indian Ocean Dipole (IOD):
I. It involves an irregular oscillation of sea surface temperatures in the western and eastern Indian Ocean.
II. A positive IOD is generally beneficial for the Indian monsoon.
III. A negative IOD brings heavier than normal rainfall to the Indian subcontinent.
IV. The IOD can sometimes offset the negative impacts of El Niño on the Indian monsoon.
Which of the above statement(s) is/are correct?
I. It involves an irregular oscillation of sea surface temperatures in the western and eastern Indian Ocean.
II. A positive IOD is generally beneficial for the Indian monsoon.
III. A negative IOD brings heavier than normal rainfall to the Indian subcontinent.
IV. The IOD can sometimes offset the negative impacts of El Niño on the Indian monsoon.
Which of the above statement(s) is/are correct?
Explanation
The Indian Ocean Dipole involves temperature oscillations between the western and eastern Indian Ocean. A positive IOD usually enhances the monsoon, while a negative IOD can weaken it. Importantly, a positive IOD can sometimes mitigate the rainfall deficit caused by El Niño. Therefore, the statement that a negative IOD brings heavier than normal rainfall to India is generally incorrect.
Q5695. What is the most appropriate reason for the extreme marginalization of De-notified Tribes (DNTs) in modern India?
Explanation
The extreme marginalization of De-notified Tribes in India is largely rooted in the historical stigma of the colonial-era Criminal Tribes Act. This legislation branded entire communities as hereditary criminals, leading to systemic social exclusion and police harassment. Although the Act was repealed after independence, deep-seated prejudice and lack of permanent documentation continue to hinder their access to education and employment.
Q5696. Identify the odd one out regarding the scientific fields heavily influenced by Har Gobind Khorana’s research.
Explanation
Har Gobind Khorana’s research in chemical biology and genetics laid the groundwork for several modern scientific fields. His work is central to molecular genetics, genetic engineering, and the broader biotechnology industry. These fields rely on the ability to read, synthesize, and manipulate genetic material. Plate tectonics, however, is a branch of geology concerned with the Earth’s crustal movements and is unrelated.
Q5697. The architectural classification ‘Mandapa’ in a traditional Rajasthani temple denotes:
Explanation
The Mandapa is the pillared assembly hall of a temple that leads to the inner sanctum. The tower above the deity is the shikhara.
Q5698. Which of the following Deccan Sultanates did NOT participate in the grand alliance that defeated the Vijayanagar Empire at the Battle of Talikota?
Explanation
The grand alliance formed to challenge the power of Vijayanagar included the Sultanates of Bijapur, Ahmadnagar, Golconda, and Bidar. Berar did not participate in this coalition, largely due to its ongoing territorial conflicts and strained relations with the neighboring state of Ahmadnagar.
Q5699. What is the main cause for the shifting of the Inter-Tropical Convergence Zone (ITCZ) northwards over the Ganga plains in summer?
Explanation
The ITCZ shifts northward over the Ganga plains during the summer due to the apparent northward movement of the sun towards the Tropic of Cancer. This movement leads to intense heating of the northern landmass, creating a low-pressure zone. This shift is a fundamental part of the monsoon mechanism, as it draws moisture-laden winds from the southern hemisphere across the equator.
Q5700. Identify the correct pair regarding components of the NSAP:
Explanation
The Indira Gandhi National Disability Pension Scheme is a key component of the NSAP, providing financial assistance to persons with severe or multiple disabilities. Eligible beneficiaries must be between eighteen and seventy-nine years of age and belong to households below the poverty line. This targeted support aims to provide a basic social security net for those who face significant physical or mental challenges.Answer key for these questions
| Q | Correct answer |
|---|---|
| 5691 | (c) Westerly Jet Stream |
| 5692 | (a) Both Statement I and Statement II are correct |
| 5693 | (a) I, III, and IV only |
| 5694 | (a) I, II and IV only |
| 5695 | (a) The historical stigma of the colonial-era Criminal Tribes Act, which labeled them as born criminals |
| 5696 | (a) Plate tectonics |
| 5697 | (d) The pillared assembly hall leading to the inner sanctum. |
| 5698 | (d) Berar |
| 5699 | (d) Northward movement of the sun towards the Cancer tropic |
| 5700 | (c) IGNDPS - Pension for persons with severe disabilities aged 18 to 79 from BPL households |
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.