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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.9073·Miscellaneous·2016·Easy

The property of electric current which is applicable in the fuse wire is

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Q.9074·Miscellaneous·2016·Easy

The interior angles of a polygon of n sides are in AP. The smallest angle is 120° and the common difference is 5°. What is the largest interior angle of the polygon ?

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Q.9075·Miscellaneous·2016·Easy

If f(x) = [cos x -sin x 0; sin x cos x 0; 0 0 1], then which of the following are correct ? 1.R(θ) × f(ϕ) = f(θ + ϕ) 2.The value of the determinant of the matrix f(θ) × f(ϕ) is 1. 3.The determinant of f(x) is an even function. Select the correct answer using the code given below :

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Q.9076·Miscellaneous·2016·Easy

If A = [1 -1; 3 2] and B = [2 -2; -1 -2], then which of the following is/are correct ? 1.AB (A⁻¹B⁻¹) is a unit matrix. 2.(AB)⁻¹ = A⁻¹ B⁻¹. Select the correct answer using the code given below :

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Q.9077·Miscellaneous·2016·Easy

If the number 235 in decimal system is converted into binary system, then what is the resulting number ?

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Q.9078·Miscellaneous·2016·Easy

Let α and β be the roots of the equation x² - (1 - 2a²)x + (1 - 2a²) = 0. Under what condition does the above equation have real roots ?

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Q.9079·Miscellaneous·2016·Easy

In an examination, 70% students passed in Physics, 80% students passed in Chemistry, 75% students passed in Mathematics and 85% students passed in Biology, and x% students failed in all the four subjects. What is the minimum value of x ?

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Q.9080·Miscellaneous·2016·Easy

For the system of linear equations 2x + 3y + 5z = 9, 7x + 3y - 2z = 8 and 2x + 3y + λz = μ Under what condition does the above system of equations have infinitely many solutions ?

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Q.9081·Miscellaneous·2016·Easy

For the system of linear equations 2x + 3y + 5z = 9, 7x + 3y - 2z = 8 and 2x + 3y + λz = μ Under what condition does the above system of equations have unique solutions ?

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Q.9082·Miscellaneous·2016·Easy

What is the number of odd integers between 1000 and 9999 with no digit repeated ?

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Q.9083·Miscellaneous·2016·Easy

What is the greatest value of the positive integer n satisfying the condition 1 + 1/2 + 1/4 + 1/8 + … + 1/2^(n-1) < 2 - 1/1000 ?

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Q.9084·Miscellaneous·2016·Easy

In this question consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Statement I : Variability of annual rainfall is very high in western part of Rajasthan. Statement II : Average annual rainfall is extremely low in western Rajasthan.

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Q.9085·Miscellaneous·2016·Easy

In this question consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Statement I : Ozone is a tri-atomic molecule of oxygen. Statement II : Ozone is concentrated mainly in stratosphere.

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Q.9086·Miscellaneous·2016·Easy

In this question consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Statement I : The laterite soils develop in areas with high temperature and high rainfall. Statement II : Laterite soils are the result of intense leaching process.

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Q.9087·Miscellaneous·2016·Easy

In this question consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Statement I : Too much salt content in diet could be one of the reasons for kidney failure. Statement II : High salt may cause high blood pressure.

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Q.9088·Miscellaneous·2016·Easy

In this question consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Statement I : The city of Rome revived in a spectacular way in the 15th century. Statement II : From the 15th century onwards, artists were known individually by name, not as member of a group or a guild, in Roman society.

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Q.9089·Miscellaneous·2016·Easy

In this question consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below : Statement I : Chartism was the political reform campaign for democratic rights which swept over Britain between 1838 and 1848. Statement II : The trade union movement declined by the 1830s as it failed to fulfil the aspirations of the working class.

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Q.9090·Miscellaneous·2016·Easy

‘Sahel’ region of Sahara desert is associated with

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