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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.8101·Miscellaneous·2017·Easy

Which one of the following elements corrodes rapidly ?

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Q.8102·Miscellaneous·2017·Easy

Which one of the following elements forms highest number of compounds ?

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Q.8103·Miscellaneous·2017·Easy

A homogeneous mixture contains two liquids. How are they separated ?

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Q.8104·Miscellaneous·2017·Easy

Which one of the following statements is correct about the magnification of an optical microscope ?

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Q.8105·Miscellaneous·2017·Easy

In a solenoid, the current flowing through the wire is I and number of turns per unit length is n. This gives a magnetic field B inside the solenoid. If number of turn per unit length is increased to 2n, what will be the value of magnetic field in the solenoid ?

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Q.8106·Miscellaneous·2017·Easy

Match List I with List II and select the correct answer using the code given below the Lists : List I (Disease) — List II (Remedy) A. Hypermetropia — 1. Concave lens B. Presbyopia — 2. Bifocal lens C. Myopia — 3. Surgery D. Cataract — 4. Convex lens Code :

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Q.8107·Miscellaneous·2017·Easy

The following figure shows displacement versus time curve for a particle executing simple harmonic motion :

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Q.8108·Miscellaneous·2017·Easy

The amount of heat required to change a liquid to gaseous state without any change in temperature is known as

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Q.8109·Miscellaneous·2017·Easy

Which one of the following statements is NOT correct ?

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Q.8110·Miscellaneous·2017·Easy

What is the ratio in which the point C(2, 20/7) divides the line joining the points A(-2, -2) and B(2, -4)?

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Q.8111·Miscellaneous·2017·Easy

What is the equation of the circle which passes through the points (3, -2) and (-2, 0) and having its centre on the line 2x - y - 3 = 0?

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Q.8112·Miscellaneous·2017·Easy

Which one of the following physical quantity has the same unit as that of pressure ?

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Q.8113·Miscellaneous·2017·Easy

Which one of the following statements is correct with regard to the material of electrical insulators ?

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Q.8114·Miscellaneous·2017·Easy

What is the equation of the straight line parallel to 2x + 3y + 1 = 0 and passes through the point (-1, 2)?

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Q.8115·Miscellaneous·2017·Easy

If the centroid of a triangle formed by (7, x), (y, -6) and (9, 10) is (6, 3), then the values of x and y are respectively

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Q.8116·Miscellaneous·2017·Easy

A straight line with direction cosines (0, 1, 0) is

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Q.8117·Miscellaneous·2017·Easy

Which one of the following physical quantities does NOT affect the resistance of a cylindrical resistor?

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Q.8118·Miscellaneous·2017·Easy

Who launched the Bardoli Satyagraha on 4th February, 1928?

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