Q281. Sea breezes and land breezes are natural phenomena primarily caused by:
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Q282. Arrange the material cultural phases of Bagor in proper chronological order:
I. Microliths + Iron tools
II. Microliths alone
III. Microliths + Copper tools
Select the correct sequence:
I. Microliths + Iron tools
II. Microliths alone
III. Microliths + Copper tools
Select the correct sequence:
Explanation
The material culture at Bagor evolved through three distinct chronological stages. The sequence begins with a purely microlithic phase focused on hunting and early pastoralism. This is followed by a stage where copper tools and handmade pottery were introduced alongside traditional stone tools. Finally, the Iron Age phase emerged, characterized by the appearance of iron implements and wheel-made pottery, reflecting regional shifts.
Q283. Consider the following archaeologists and their associated excavations:
I. Daya Ram Sahni - Harappa
II. R.D. Banerji - Mohenjo-daro
III. N.G. Majumdar - Chanhudaro
IV. S.R. Rao - Lothal
V. J.P. Joshi - Dholavira
Which of the combination of statements given above is correct?
I. Daya Ram Sahni - Harappa
II. R.D. Banerji - Mohenjo-daro
III. N.G. Majumdar - Chanhudaro
IV. S.R. Rao - Lothal
V. J.P. Joshi - Dholavira
Which of the combination of statements given above is correct?
Explanation
The discovery and documentation of the Indus Valley Civilisation involved many dedicated archaeologists. Daya Ram Sahni and R.D. Banerji were pioneers at Harappa and Mohenjo-daro, respectively. N.G. Majumdar carried out important work at Chanhudaro. S.R. Rao’s excavations at Lothal revealed its maritime importance, while J.P. Joshi and later R.S. Bisht were instrumental in uncovering the unique stone architecture of Dholavira.
Q284. The Preamble to the Indian Constitution is based on the ‘Objective Resolution’ which was drafted and moved by:
Explanation
The Preamble of the Indian Constitution is based on the ‘Objective Resolution’, which was drafted and moved by Jawaharlal Nehru in the Constituent Assembly on December 13, 1946. This resolution outlined the vision for an independent India and was unanimously adopted by the Assembly. Its core principles were eventually refined and condensed to form the Preamble that opens our Constitution today.
Q285. Consider the following statements regarding glacial plains:
I. They are formed by the erosional and depositional work of glaciers.
II. A till plain is an uneven surface of unstratified glacial drift.
III. An outwash plain is composed of stratified drift deposited by meltwater.
IV. They are exclusively found in equatorial latitudes.
Which of the above statement(s) is/are incorrect?
I. They are formed by the erosional and depositional work of glaciers.
II. A till plain is an uneven surface of unstratified glacial drift.
III. An outwash plain is composed of stratified drift deposited by meltwater.
IV. They are exclusively found in equatorial latitudes.
Which of the above statement(s) is/are incorrect?
Explanation
Glacial plains are formed by the erosional and depositional activities of large ice sheets. A till plain consists of unstratified drift deposited directly by melting ice, while an outwash plain features stratified sediments laid down by glacial meltwater. These landforms are typically found in high-latitude regions or high-altitude areas that experienced glaciation, rather than in the warm equatorial latitudes.
Q286. A Pigouvian tax is designed to correct market failure by:
Explanation
A Pigouvian tax is a policy tool used to correct negative externalities. By setting a tax equal to the marginal external cost of an activity, the government forces producers to internalize the damage they cause. This increases the private cost of production, leading to higher prices and lower output. Ultimately, this mechanism aligns private incentives with social welfare and reduces overall pollution levels.
Q287. Mercury is commonly used in clinical thermometers because it:
Explanation
Mercury is favored for use in clinical thermometers because it expands uniformly across a wide range of temperatures, ensuring accurate readings. As a metal, it is a good conductor of heat and responds quickly to changes. Furthermore, its silver color makes it easy to see against the glass, and it does not wet or stick to the capillary tube’s internal surface.
Q288. Why is a distinct, classical "Neolithic" phase largely considered sparse or absent in the prehistoric record of Rajasthan compared to South India?
Explanation
A classical Neolithic phase is considered sparse in Rajasthan because many communities transitioned rapidly from late Mesolithic traditions directly into the Chalcolithic. The early discovery and exploitation of abundant copper deposits in the Aravalli range facilitated this quick adoption of metal. Consequently, the traditional Neolithic markers, such as polished stone tools, are often bypassed in favor of copper implements within settled communities.
Q289. Match the prominent Harappan artefact or feature in List I with its associated site in List II and select the correct answer.
| Prominent Harappan Artefact/Feature | Associated Site |
|---|---|
| A. Pashupati Seal | i. Lothal |
| B. Dancing Girl | ii. Kalibangan |
| C. Fire Altars | iii. Mohenjo-daro (Steatite) |
| D. Dockyard | iv. Mohenjo-daro (Bronze) |
Explanation
Important Harappan artifacts are linked to specific sites. The steatite Pashupati seal and the bronze Dancing Girl statue were both discovered at Mohenjo-daro. Fire altars are a characteristic feature of Kalibangan and Lothal. Additionally, Lothal is uniquely famous for its large brick dockyard. These findings help archaeologists identify the cultural and functional differences between the various urban centers of the civilization.
Q290. Match List I with List II and select the correct answer from the options given below:
| Scholar/Jurist | Description of Preamble |
|---|---|
| A. N. A. Palkhivala | i. Key-note to the Constitution |
| B. K. M. Munshi | ii. Identity card of the Constitution |
| C. Sir Ernest Barker | iii. Horoscope of our sovereign democratic republic |
| D. Thakur Das Bhargava | iv. Soul of the Constitution |
Explanation
Various scholars have described the Preamble’s significance differently. N. A. Palkhivala called it the "identity card of the Constitution." K. M. Munshi described it as the "horoscope of our sovereign democratic republic." Sir Ernest Barker viewed it as the "key-note to the Constitution," while Thakur Das Bhargava famously referred to the Preamble as the "soul of the Constitution" and its jewel set.Answer key for these questions
| Q | Correct answer |
|---|---|
| 281 | (a) Convection currents in the atmosphere |
| 282 | (b) II, III, I |
| 283 | (b) I, II, III, IV and V |
| 284 | (b) Jawaharlal Nehru |
| 285 | (c) IV only |
| 286 | (b) Tax matching marginal external cost. |
| 287 | (b) expands uniformly across a wide temperature range |
| 288 | (b) Because early inhabitants transitioned rapidly from Mesolithic directly to Chalcolithic due to early metal adoption |
| 289 | (b) A-iii, B-iv, C-ii, D-i |
| 290 | (a) A-ii, B-iii, C-i, D-iv |
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.