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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.6985·Miscellaneous·2018·Easy

The connecting cable of electrical appliances like electric iron, water heater or room heater contains three insulated copper wires of three different colours—red, green and black. Which one of the following is the correct colour code?

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Q.6986·Miscellaneous·2018·Easy

The graphs between current (I) and voltage (V) for three linear resistors 1, 2 and 3 are given below : If R₁, R₂ and R₃ are the resistances of these resistors, then which one of the following is correct?

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Q.6987·Miscellaneous·2018·Easy

Consider the following statements about a microscope and a telescope : 1. Both the eyepiece and the objective of a microscope are convex lenses. 2. The focal length of the objective of a telescope is larger than the focal length of its eyepiece. 3. The magnification of a telescope increases with the increase in focal length of its objective. 4. The magnification of a microscope increases with the increase in focal length of its objective. Which of the statements given above are correct?

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Q.6988·Miscellaneous·2018·Easy

Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (River Basin) List-II (Town) A. Bhagirathi 1. Lansdowne B. Alaknanda 2. Narendra Nagar C. Nayar 3. Uttarkashi D. Ganga 4. Pauri Code :

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Q.6989·Miscellaneous·2018·Easy

Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Local Wind) List-II (Place) A. Yamo 1. Sudan B. Black Roller 2. France C. Bise 3. Japan D. Haboob 4. North America Code :

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Q.6990·Miscellaneous·2018·Easy

‘Majuli’, the river island, is located in which one of the following rivers?

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Q.6991·Miscellaneous·2018·Easy

The oxygenated blood from the lungs is received by the:

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Q.6992·Miscellaneous·2018·Easy

Which one of the following Indian States has recorded negative growth of population as per Census 2011?

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Q.6993·Miscellaneous·2018·Easy

For the function f(x) = |x – 3|, which one of the following is not correct ?

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Q.6994·Miscellaneous·2018·Easy

Let x be the number of integers lying between 2999 and 8001 which have at least two digits equal. Then x is equal to

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Q.6995·Miscellaneous·2018·Easy

In this question has a sentence with three underlined parts labelled (a), (b) and (c). Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter, i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d). (a) This view has been taken (b) by one of the ablest persons (c) who has written on this subject. (d) No error

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Q.6996·Miscellaneous·2018·Easy

In this question has a sentence with three underlined parts labelled (a), (b) and (c). Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter, i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d). (a) One of the members (b) expressed doubt if (c) the Minister was an atheist. (d) No error

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Q.6997·Miscellaneous·2018·Easy

In this question has a sentence with three underlined parts labelled (a), (b) and (c). Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter, i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d). (a) He appears (b) to be (c) a honest man. (d) No error

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Q.6998·Miscellaneous·2018·Easy

Consider the following in respect of matrices A, B and C of same order : 1. (A + B + C)ᵀ = Aᵀ + Bᵀ + Cᵀ 2. (AB)ᵀ = Aᵀ Bᵀ 3. (ABC)ᵀ = Cᵀ Bᵀ Aᵀ Where Aᵀ is the transpose of the matrix A. Which of the above are correct ?

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Q.6999·Miscellaneous·2018·Easy

If u, v and w (all positive) are the pth, qth and rth terms of a GP, then the determinant of the matrix | ln u p 1 | | ln v q 1 | | ln w r 1 | is

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Q.7000·Miscellaneous·2018·Easy

Which one of the following is correct in respect of the cube roots of unity ?

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Q.7001·Miscellaneous·2018·Easy

The system of equations 2x + y – 3z = 5, 3x – 2y + 2z = 5, 5x – 3y – z = 16 is

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Q.7002·Miscellaneous·2018·Easy

What is the value of log9 27 + log9 32 ?

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