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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.9667·Miscellaneous·2016·Easy

The HIV virus weakens the immunity of a person because it destroys

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Q.9668·Miscellaneous·2016·Easy

Consider a circle with centre at O and radius 7 cm. Let QR be a chord of length 2 cm and let P be the midpoint of QR. Let CD be another chord of this circle passing through P such that ∠CPQ is acute. If M is the midpoint of CD and MP = √24 cm, then which of the following statements are correct? 1. ∠QPD = 135° 2. If CP = m cm and PD = n cm, then m and n are the roots of the quadratic equation x² – 10x + 1 = 0 . 3. The ratio of the area of triangle OPR to the area of triangle OMP is 1 : 2√2. Select the correct answer using the code given below.

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Q.9669·Miscellaneous·2016·Easy

We are tempted to assume that technological progress is real progress and that material success is the criterion of civilization. If the Eastern people become fascinated by machines and techniques and use them, as Western nations do, to build huge industrial organizations and large military establishments, they will get involved in power politics and drift into the danger of death. Scientific and technological civilization brings great opportunities and great rewards but also great risks and temptations. Science and technology are neither good nor bad. They are not to be tabooed but tamed and assigned their proper place. They become dangerous only if they become idols. According to the author, people think that real progress lies in

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Q.9670·Miscellaneous·2016·Easy

This question consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters. ELUCIDATE

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Q.9671·Miscellaneous·2016·Easy

A person travels 7 km eastwards and then turns right and travels 3 km and further turns right and travels 13 km. What is the shortest distance of the present position of the person from his starting point?

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Q.9672·Miscellaneous·2016·Easy

This question consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters. MONOTONOUS

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Q.9673·Miscellaneous·2016·Easy

Which one of the following is most sensitive to environmental change?

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Q.9674·Miscellaneous·2016·Easy

Which one of the following is the largest source of electricity in India?

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Q.9675·Miscellaneous·2016·Easy

Let ABC be a triangle in which AB = AC. Let L be the locus of points X inside or on the triangle such that BX = CX. Which of the following statements are correct? 1. L is a straight line passing through A and in-centre of triangle ABC is on L. 2. L is a straight line passing through A and orthocentre of triangle ABC is a point on L. 3. L is a straight line passing through A and centroid of triangle ABC is a point on L. Select the correct answer using the code given below.

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Q.9676·Miscellaneous·2016·Easy

Consider a circle with centre at C. Let OP, OQ denote respectively the tangents to the circle drawn from a point O outside the circle. Let R be a point on OP and S be a point on OQ such that OR × SQ = OS × RP. Which of the following statements is/are correct? 1. If X is the circle with centre at C and radius OR, and Y is the circle with centre at O and radius OS, then X = Y. 2. ∠POC + ∠QCO = 90° Select the correct answer using the code given below.

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Q.9677·Miscellaneous·2016·Easy

We are tempted to assume that technological progress is real progress and that material success is the criterion of civilization. If the Eastern people become fascinated by machines and techniques and use them, as Western nations do, to build huge industrial organizations and large military establishments, they will get involved in power politics and drift into the danger of death. Scientific and technological civilization brings great opportunities and great rewards but also great risks and temptations. Science and technology are neither good nor bad. They are not to be tabooed but tamed and assigned their proper place. They become dangerous only if they become idols. According to the author, science and technology should be

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Q.9678·Miscellaneous·2016·Easy

If m and n are distinct natural numbers, then which of the following is/are integer/integers? 1. (m/n + n/m) 2. mn [(m/n + n/m)(m² + n²)^–1] 3. mn / (m² + n²) Select the correct answer using the code given below.

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Q.9679·Miscellaneous·2016·Easy

We are tempted to assume that technological progress is real progress and that material success is the criterion of civilization. If the Eastern people become fascinated by machines and techniques and use them, as Western nations do, to build huge industrial organizations and large military establishments, they will get involved in power politics and drift into the danger of death. Scientific and technological civilization brings great opportunities and great rewards but also great risks and temptations. Science and technology are neither good nor bad. They are not to be tabooed but tamed and assigned their proper place. They become dangerous only if they become idols. From the passage one gathers that the Eastern people must

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Q.9680·Miscellaneous·2016·Easy

We are tempted to assume that technological progress is real progress and that material success is the criterion of civilization. If the Eastern people become fascinated by machines and techniques and use them, as Western nations do, to build huge industrial organizations and large military establishments, they will get involved in power politics and drift into the danger of death. Scientific and technological civilization brings great opportunities and great rewards but also great risks and temptations. Science and technology are neither good nor bad. They are not to be tabooed but tamed and assigned their proper place. They become dangerous only if they become idols. According to the author, science and technology are

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Q.9681·Miscellaneous·2016·Easy

Outside a meeting room, Madhukar was told by a person that each meeting takes place after 13/4 hours. The last meeting has been over just 45 minutes ago and the next meeting will take place at 2 p.m. At what time did Madhukar receive this information?

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Q.9682·Miscellaneous·2016·Easy

It is not luck but labour that makes men. Luck, says an American writer, is ever waiting for something to turn up; labour with keen eyes and strong will always turns up something. Luck lies in bed and wishes the postman would bring him news of a legacy; labour turns out at six and with busy pen and ringing hammer lays the foundation of competence. Luck whines, labour watches. Luck relies on chance; labour on character. Luck slips downwards to self-indulgence; labour strides upwards and aspires to independence. The conviction, therefore, is extending that diligence is the mother of good luck; in other words, that a man's success in life will be proportionate to his efforts, to his industry, to his attention to small things. Which one of the following statements sums up the meaning of the passage?

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Q.9683·Miscellaneous·2016·Easy

If (61/19) = 3 + 1/(x + 1/(y + 1/z)) where x, y and z are natural numbers, then what is z equal to?

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Q.9684·Miscellaneous·2016·Easy

It is not luck but labour that makes men. Luck, says an American writer, is ever waiting for something to turn up; labour with keen eyes and strong will always turns up something. Luck lies in bed and wishes the postman would bring him news of a legacy; labour turns out at six and with busy pen and ringing hammer lays the foundation of competence. Luck whines, labour watches. Luck relies on chance; labour on character. Luck slips downwards to self-indulgence; labour strides upwards and aspires to independence. The conviction, therefore, is extending that diligence is the mother of good luck; in other words, that a man's success in life will be proportionate to his efforts, to his industry, to his attention to small things. Which one of the following statements is true about the passage?

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