Q151. The excavations at Budha Pushkar, which provided insights into the Middle to Upper Palaeolithic transition, were conducted by whom?
RAS Prelims MCQ Practice
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Q152. In the context of Harappan town planning, the grid system primarily refers to which of the following?
Explanation
The hallmark of Harappan urbanism was the grid system of town planning. This involved laying out main streets and smaller lanes so that they intersected at right angles, dividing the city into rectangular blocks. This systematic organization ensured efficient movement and drainage, reflecting a high level of municipal planning and control that was virtually unparalleled in other ancient contemporary civilizations.
Q153. Match List I with List II and select the correct answer from the options given below:
| Original Member of Drafting Committee | Member who replaced them or Status |
|---|---|
| A. B. L. Mitter | i. N. Madhava Rau |
| B. D. P. Khaitan | ii. T. T. Krishnamachari |
| C. Dr. Sachchidananda Sinha | iii. Not a member of drafting committee |
| D. H. C. Mukherjee | iv. Not replaced in drafting committee |
Explanation
In the Drafting Committee, B. L. Mitter resigned due to ill health and was replaced by N. Madhava Rau. D. P. Khaitan passed away in 1948 and his vacancy was filled by T. T. Krishnamachari. Dr. Sachchidananda Sinha was the temporary president of the Assembly but not a member of the Drafting Committee. H. C. Mukherjee was a Vice-President.
Q154. Which of the following is the most appropriate description of the soil formation on the Deccan Plateau?
Explanation
The Deccan Plateau was formed by massive volcanic activity that spread extensive layers of basaltic lava across the region. Over millions of years, the physical and chemical weathering of these volcanic rocks has resulted in the formation of deep black soils. These soils are rich in minerals like lime and iron, making them exceptionally fertile for crops like cotton.
Q155. In the stages of economic growth model, the "take-off" stage is characterized by:
Explanation
In the stages of economic growth model, the take-off stage represents a short period of intensive development. It is characterized by a significant surge in investment and the emergence of leading industrial sectors. During this time, the economy shifts from a traditional state to a self-sustaining growth path. New technologies are adopted, and the social and political structure evolves.
Q156. Who was the first scientist to experimentally determine the value of the universal gravitational constant (G)?
Explanation
Henry Cavendish was the first scientist to accurately measure the value of the universal gravitational constant, known as G, using a torsion balance. His famous 1798 experiment allowed for the calculation of the Earth’s density and mass. While Isaac Newton formulated the law of universal gravitation, he did not experimentally determine the specific value of the constant required for calculations.
Q157. Which of the following is NOT a characteristic feature of the Upper Palaeolithic culture in Rajasthan?
Explanation
The Upper Palaeolithic in Rajasthan is defined by blade and burin technologies and the use of ostrich eggshells for ornaments. This era occurred during a period of significant environmental stress and aridity. However, the use of smelted copper tools is not a feature of this period; metallurgy emerged much later during the Chalcolithic phase, representing a completely different developmental stage.
Q158. Match the crop or agricultural evidence in List I with its associated Harappan site in List II and select the correct answer.
| Crop/Agricultural Evidence | Associated Harappan Site |
|---|---|
| A. Rice husks | i. Kalibangan |
| B. Terracotta plough | ii. Shortughai |
| C. Ploughed field surface | iii. Banawali |
| D. Traces of canals | iv. Lothal |
Explanation
Agricultural evidence varies across Harappan sites. Rice husks have been found at Lothal, indicating cultivation in the Gujarat region. A terracotta plough was discovered at Banawali, while the earliest evidence of a ploughed field surface comes from Kalibangan. In the arid region of Shortughai in Afghanistan, archaeologists found traces of canals, suggesting a sophisticated irrigation system for farming.
Q159. Who among the following was not a member of the Drafting Committee?
Explanation
Sir B. N. Rau served as the Constitutional Advisor to the Constituent Assembly. While he played a crucial role by preparing the initial draft of the Constitution for the Drafting Committee to work upon, he was not a member of the committee itself. The committee members included legal experts like K. M. Munshi, N. Madhava Rau, and T. T. Krishnamachari.
Q160. The Tibetan Plateau is bordered by which two major mountain ranges to its south and north respectively?
Explanation
The Tibetan Plateau is the highest and largest plateau in the world, often referred to as the "Roof of the World." Its geographic boundaries are defined by massive mountain ranges. To the south, it is bordered by the towering Himalayas. To the north, it is bounded by the Kunlun Mountains. These ranges were formed by the same tectonic collision processes between the Indian and Eurasian plates.Answer key for these questions
| Q | Correct answer |
|---|---|
| 151 | (a) B. Allchin |
| 152 | (a) The layout of streets and lanes intersecting at right angles to form blocks |
| 153 | (a) A-i, B-ii, C-iii, D-iv |
| 154 | (a) Black soils formed by the weathering of basaltic lava flows |
| 155 | (a) Investment surge and self-growth. |
| 156 | (a) Henry Cavendish |
| 157 | (d) Widespread use of smelted copper tools |
| 158 | (d) A-iv, B-iii, C-i, D-ii |
| 159 | (d) B. N. Rau |
| 160 | (d) Himalayas and Kunlun Mountains |
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.