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Prelims

UPSC Prelims Questions

Practice UPSC Prelims MCQs by subject and year. Free questions with explanations for focused revision.

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Q.1801·Miscellaneous·2024·Easy

A certain number of men can complete a piece of work in 6k days, where k is a natural number. By what percent should the number of men be increased so that the work can be completed in 5k days?

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Q.1802·Miscellaneous·2024·Easy

Not every voice on the internet commands the same kind of audience. When anonymous private entities with high capital can pay for more space for their opinions, they are effectively buying a louder voice. If political discourse in the digital sphere is a matter of outshining one’s opponent till the election is won, then the quality of politics suffers. The focus of social media is restricted to the promotion of content that generates more user engagement, regardless of how inflammatory the content may be. Based on the above passage, the following assumptions have been made 1.Internet is not inclusive enough. 2.Internet can adversely affect the quality of politics in a country. Which of the assumptions given above is/are valid?

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Q.1803·Miscellaneous·2024·Easy

We take it for granted now that science has a social responsibility. The idea would not have occurred to Newton or Galileo. They thought of science as an account of the world as it is, and the only responsibility that they acknowledged was to tell the truth. The idea that science is a social enterprise is modern, and it begins at the industrial revolution. We are surprised that we cannot trace a social sense further back, because we nurse the illusion that the industrial revolution ended a golden age. Which one of the following statements best reflects the thinking of the author about the science?

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Q.1804·Miscellaneous·2024·Easy

According to the Food and Agriculture Organization, one-third of food produced for human consumption is lost or wasted globally. Food is lost or wasted throughout the supply chain, from initial agricultural production to final household consumption. The increasing wastage also results in land degradation by about 45%, mainly due to deforestation, unsustainable agricultural practices, and excessive groundwater extraction. The energy spent over wasted food results in about 3:5 billion tonnes of carbon dioxide production every year. Decay also leads to harmful emissions of other gases in the atmosphere. Addressing the loss and wastage of food in all forms is critical to complete the cycle of food sufficiency and food sustainability. Which of the following statements best reflect the most logical and rational inferences that can be made from the passage? 1.The current methods of food distribution are solely responsible for the loss and wastage of food. 2.Land productivity is adversely affected by the prevailing trend of food loss and wastage. 3.Reduction in the loss and wastage of food results in lesser carbon footprint. 4.Post-harvest technologies to prevent or reduce the loss and wastage of food are not available. Select the correct answer using the code given below.

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Q.1805·Miscellaneous·2024·Easy

According to the Food and Agriculture Organization, one-third of food produced for human consumption is lost or wasted globally. Food is lost or wasted throughout the supply chain, from initial agricultural production to final household consumption. The increasing wastage also results in land degradation by about 45%, mainly due to deforestation, unsustainable agricultural practices, and excessive groundwater extraction. The energy spent over wasted food results in about 3:5 billion tonnes of carbon dioxide production every year. Decay also leads to harmful emissions of other gases in the atmosphere. Addressing the loss and wastage of food in all forms is critical to complete the cycle of food sufficiency and food sustainability. Based on the above passage, the following assumptions have been made: 1. The food distribution mechanism needs to be reimagined and made effective to reduce the loss and wastage of food. 2. Ensuring the reduction of wastage and loss of food is a social and moral responsibility of all citizens. Which of the assumptions given above is/are valid?

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Q.1806·Miscellaneous·2024·Easy

As inflation rises, even governments previously committed to budget discipline are spending freely to help households. Higher interest rates announced by central banks are supposed to help produce modest fiscal austerity, because to maintain stable debts while paying more to borrow, governments must cut spending or raise taxes. Without the fiscal backup, monetary policy eventually loses traction. Higher interest rates become inflationary, not disinflationary, because they simply lead governments to borrow more to pay rising debt-service costs. The risk of monetary unmooring is greater when public debt rises, because interest rates become more important to budget deficits. Which of the following statements best reflects/reflect the most logical and rational inference/inferences that can be made from the passage? 1. Central banks cannot bring down inflation without budgetary backing. 2. The effects of monetary policy depend on the fiscal policies pursued by the government. Select the correct answer using the code given below.

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Q.1807·Miscellaneous·2024·Easy

What is the least possible number of cuts required to cut a cube into 64 identical pieces?

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Q.1808·Miscellaneous·2024·Easy

In the expression 5 * 4 * 3 * 2 * 1, * is chosen from +, —, X each at most two times. What is the smallest non- negative value of the expression?

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Q.1809·Miscellaneous·2023·Easy

Which one of the following is NOT a requirement for photosynthesis?

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Q.1810·Miscellaneous·2023·Easy

Which Five Year Plan of India focused on rapid industrialization based growth process?

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Q.1811·Miscellaneous·2023·Easy

In flowering plants, DNA content of the parent plant gets halved during

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Q.1812·Miscellaneous·2023·Easy

Which one of the following is the correct sequence during sexual reproduction in Angiosperms?

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Q.1813·Miscellaneous·2023·Easy

What is the action of litmus on ethanol?

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Q.1814·Miscellaneous·2023·Easy

Which one of the following metal is NOT an essential component in stainless steel?

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Q.1815·Miscellaneous·2023·Easy

Match List I with List II and select the correct answer using the code given below the Lists: List I (Process) List II (Separation method) A. Separation of acetoneand water from their mixture 1. Chromatography B. Separation of water and kerosene oil from their mixture 2. Centrifugation C. Separation of cream from milk 3. Distillation D. Separation of pigments from plant extract 4. Separating Funnel

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Q.1816·Miscellaneous·2023·Easy

Consider the following statements regarding Sanchi and its archaeological findings: 1.When Sanchi was discovered in 1818, three of its four gateways were still standing, the fourth was lying on the spot where it had fallen 2.Animals depicted at Sanchi include elephants, horses, monkeys and cattle Which of the statements given above is/are correct?

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Q.1817·Miscellaneous·2023·Easy

Chandimangala , a sixteenth century text, was composed by

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Q.1818·Miscellaneous·2023·Easy

Consider the following statements regarding the royal center in Vijayanagara Empire: 1.The royal center was located in the south-western part of the settlement 2.It included over 60 temples 3.About 30 building complexes at the site have been identified as palaces Which of the statements given above is/are correct?

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