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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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  2. /Prelims Questions
Q.15355·Science & Technology·Easy

Consider the following statements: 1. General circulation of the atmosphere plays an important role in the formation of the ocean currents. 2. The transfer of heat energy from the lower latitudes to the higher latitudes maintains the general circulation pattern of the atmosphere. Which of the statements given above is/are correct?

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Q.15356·Current Affairs·Easy

Consider the following statements: 1. The two major natural pathways of nitrogen fixation are lightning and biological activity. 2. Fixation of nitrogen cannot be done through the use of chemical fertilizers. Which of the statements given above is/are correct?

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Q.15357·International Relations·Easy

Consider the following statements: 1. Ecoline is the transitional stage of sequential changes from one vegetation community to other vegetation community. 2. A broad transition between two different ecosystems of mainly plant communities is called sere. Which of the statements given above is/are correct?

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Q.15358·International Relations·Easy

Consider the following statements regarding the properties of an ecosystem: 1. It is a functional unit wherein the biotic components and abiotic components are intimately related. 2. There are complex sets of interactions between biotic and abiotic components. Which of the statements given above is/are correct?

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Q.15359·Science & Technology·Easy

Consider the following statements: 1. The ideal conditions for the formation of dew are clear sky, calm air, high relative humidity, and cold and long nights. 2. The ideal conditions for the formation of frost are completely the same as those for the formation of dew. Which of the statements given above is/are correct?

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Q.15360·Miscellaneous·Easy

Directions: Answer the following question based on the information below: A B, C, D, E, F and G are seven cities connected to each other by different paths, as shown below. The arrow indicates the direction in which one can travel. Which city is directly connected to the maximum number of cities? A direct connection means that you can either reach that city from another city or go from that city to another city without passing any other city in between.

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Q.15361·Miscellaneous·Easy

The number of deaths among the army personnel is 8 in 1000, but among the civilian population it is 20 per 1000. Which one of the following inferences can be drawn from this statement?

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Q.15362·Miscellaneous·Easy

Which of the following are detritivores? 1. Earthworms 2. Jellyfish 3. Millipedes 4. Seahorses 5. Woodlice Select the correct answer using the code given below.

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Q.15363·Miscellaneous·Easy

Which of the following states has the highest length of National Highways?

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Q.15364·International Relations·Easy

Consider the following statements: 1. For the purpose of Census 2011, a person aged nine and above, who can both read and write with understanding in any language, is treated as literate. 2. In the censuses prior to 1991, children below five years of age were necessarily treated as literate. Which of the statements given above is/are correct?

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Q.15365·International Relations·Easy

Which of the following statements is/are correct regarding the Mahakali Treaty? 1. It is a Treaty between India and Nepal. 2. The Pancheshwar Multipurpose Project is located on the River Mahakali. 3. River Mahakali is known as River Sarayu in India. Select the correct answer using the code given below:

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Q.15366·Miscellaneous·Easy

Six faces of a cube are numbered from 1 to 6, each face carrying one different number. Further, 1. The face 2 is opposite to the face 6. 2. The face 1 is opposite to the face 5. 3. The face 3 is between the face 1 and the face 5. 4. The face 4 is adjacent to the face 2. Which one of the following is correct?

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Q.15367·Miscellaneous·Easy

The average age of 8 members of a group is 40 years. Among them the age of 1 member is 55 yrs. After his retirement a new member whose age is 39 years comes in his place . What is the effect on the average age of group?

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Q.15368·Current Affairs·Easy

Consider the following statements about types of volcanoes: 1. Shield volcanoes are mostly made up of basalt. 2. The Hawaiian volcanoes are the examples of Shield volcanoes. 3. Composite volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt. Which of the statement given above is/are correct?

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Q.15369·Science & Technology·Easy

Consider the following pairs about intrusive landforms: 1. Batholiths-Magmatic material that cools inside the crust 2. Phacoliths-Wavy mass of intrusive rocks at the base of synclines 3. Sills - Thick horizontal deposits of intrusive igneous rocks. Which of the pairs given above is/are correctly matched?

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Q.15370·International Relations·Easy

Consider the following statements: 1. The Census 2011 is the 15th National Census Survey, conducted by the census Organization of India. 2. The total literacy rate in the country at present is 64.04%. 3. The density of population is 682 persons/sq.km. Which of the statements given above is/are correct?

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Q.15371·Miscellaneous·Easy

Michelle got married 9 years ago. Today her age is times of her age at the time of marriage. At present her daughter's age is one sixth of her age. What was her daughter's age two years ago?

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Q.15372·Science & Technology·Easy

Q10 . Directions: Many people in India feel that if we cut our defence expenditure on weapon-building, we can create a climate of peace with our neighbours, subsequently reducing the conflict or creating a no-war situation. People who proclaim such ideas are either the victims of war or the propagators of false agreement. With reference to the above passage, which of the following is the most valid assumption?

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