Q481. A circular economy fundamentally differs from a traditional linear economy by:
RAS Prelims MCQ Practice
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Q482. Magnetic field lines outside a permanent bar magnet travel from:
Explanation
Magnetic field lines are imaginary lines used to represent the direction and strength of a magnetic field. Outside a permanent bar magnet, these lines emerge from the north pole and curve around to enter the south pole. Inside the magnet itself, the lines continue from the south pole back to the north pole, forming continuous, closed loops that never intersect each other.
Q483. Which distinct type of pottery is predominantly associated with the Ganeshwar-Jodhpura cultural complex?
Explanation
The Ganeshwar-Jodhpura cultural complex is predominantly associated with a distinct type of ceramic known as Ochre Coloured Pottery (O.C.P.), also referred to as Kapi-varni. This pottery is characterized by its orange-to-red color and often has a fragile, weathered surface. It serves as a vital diagnostic marker for identifying sites that were part of this early copper-producing culture in ancient India.
Q484. Which of the following articles does not directly deal with the determination of citizenship status at the commencement of the Constitution?
Explanation
While Articles 5, 6, 7, and 8 specify the different categories of persons who were deemed citizens at the commencement of the Constitution, Article 11 does not determine anyone’s status. Instead, it empowers the Parliament to enact laws for the future acquisition and termination of citizenship. Thus, Article 11 is a source of legislative power rather than a provision defining initial citizenship status.
Q485. In the context of sustainable production, what does the transition from "cradle to grave" to "cradle to cradle" signify?
Explanation
The "cradle to cradle" philosophy suggests that products should be designed so that at the end of their life, they can be fully recycled or composted. Unlike the "cradle to grave" model, where products eventually end up in landfills, this approach views waste as a resource. By creating closed-loop systems, manufacturers can ensure that materials are continuously repurposed, significantly reducing the environmental footprint of production.
Q486. Which rule is used to determine the direction of the magnetic field produced by a current-carrying straight conductor?
Explanation
Maxwell’s Right-Hand Thumb Rule is used to determine the direction of the circular magnetic field around a straight current-carrying wire. If the thumb of the right hand points in the direction of the conventional current, the curled fingers indicate the direction of the magnetic field lines. This simple rule is fundamental for understanding the relationship between electricity and magnetism in conductors.
Q487. Identify the incorrect statement regarding the Ganeshwar civilization.
Explanation
Ganeshwar was a major center for copper production, situated near the Khetri mines, and its tools are known for their high purity. While microliths were also used, the claim that it was a primary center for iron smelting is incorrect. Iron technology emerged much later in history. Ganeshwar’s significance lies entirely in its early mastery of copper metallurgy during the Chalcolithic phase.
Q488. A person who migrated to Pakistan from India after March 1, 1947, but later returned to India for resettlement under a permit. Under which Article could they be deemed to be a citizen of India at the commencement of the Constitution?
Explanation
Article 7 of the Constitution addresses the complex situation of persons who migrated to Pakistan after March 1, 1947, but later returned to India for resettlement under a valid permit. Such persons could be deemed citizens of India at the commencement if they had resided in India for at least six months following their return and submitted an application for registration.
Q489. Which of the following is NOT an inherent characteristic of a circular economy?
Explanation
A circular economy prioritizes resource efficiency, waste minimization, and the retention of material value. It seeks to decouple economic activity from the consumption of finite resources. Therefore, the continuous exploitation of raw materials is not a characteristic of this model; instead, the focus is on reusing existing materials. This approach helps protect ecosystems and reduces the volatility of resource prices for the global economy.
Q490. The most suitable material for making the core of an electromagnet is:
Explanation
Soft iron is the most suitable material for the core of an electromagnet because it is easily magnetized and demagnetized. When electric current flows through the surrounding coil, the soft iron becomes a strong magnet. As soon as the current is switched off, it loses almost all its magnetism quickly. This property allows for precise control over the magnetic field in many applications.Answer key for these questions
| Q | Correct answer |
|---|---|
| 481 | (b) Waste design-out and material use. |
| 482 | (b) North pole to South pole |
| 483 | (a) Kapi-varni (Ochre Coloured Pottery) |
| 484 | (d) Art. 11 |
| 485 | (a) Recycling for new lifecycles. |
| 486 | (a) Maxwell’s Right-Hand Thumb Rule |
| 487 | (c) It was a primary center for large-scale iron smelting in ancient India. |
| 488 | (c) Article 7 |
| 489 | (c) Raw material exploitation. |
| 490 | (c) Soft iron |
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.