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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.7309·Miscellaneous·2018·Easy

Which one of the following statements with regard to growth of coral reefs is not correct?

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Q.7310·Miscellaneous·2018·Easy

As per Census 2011, the concentration of Scheduled Caste population (going by percentage of Scheduled Caste population to total population of the State) is the highest in the State of

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Q.7311·Miscellaneous·2018·Easy

Which one of the following nitrogen oxides has the highest oxidation state of nitrogen?

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Q.7312·Miscellaneous·2018·Easy

Which one of the following places does not fall on leeward slope?

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Q.7313·Miscellaneous·2018·Easy

When a convex lens produces a real image of an object, the minimum distance between the object and image is equal to

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Q.7314·Miscellaneous·2018·Easy

Which one of the following statements explains higher mutation rate and faster evolution found in RNA virus?

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Q.7315·Miscellaneous·2018·Easy

Which one of the following is the special type of milk produced by a lactating mother, essential for the development of immune response of newborn baby in human?

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Q.7316·Miscellaneous·2018·Easy

Which one of the following is not true for the form of carbon known as diamond?

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Q.7317·Miscellaneous·2018·Easy

Which of the following roles is/are played by epididymis, vas deferens, seminal vesicles and prostate in male reproductive system of human?

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Q.7318·Miscellaneous·2018·Easy

Which one of the following features is an indication for modification of stem of a plant?

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Q.7319·Miscellaneous·2018·Easy

In which of the following, heat loss is primarily not due to convection?

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Q.7320·Miscellaneous·2018·Easy

Which one of the following can extinguish fire more quickly?

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Q.7321·Miscellaneous·2018·Easy

The direction of magnetic field at any location on the earth's surface is commonly specified in terms of

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Q.7322·Miscellaneous·2018·Easy

A circuit has a fuse having a rating of 5 A. What is the maximum number of 100 W–220 V bulbs that can be safely connected in parallel in the circuit?

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Q.7323·Miscellaneous·2018·Easy

P: ensuring the growth of a nation Q: is inevitable R: in developing the children S: to further education, thereby

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Q.7324·Miscellaneous·2018·Easy

Consider the following statements : 1. If (cos θ / (1 – sin θ)) + (cos θ / (1 + sin θ)) = 4, where 0 < θ < 90°, then θ = 60°. 2. If 3 tan θ + cot θ = 5 cosec θ, where 0 < θ < 90°, then θ = 60°. Which of the statements given above is/are correct?

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Q.7325·Miscellaneous·2018·Easy

Consider the following statements : 1. cos² θ = 1 – (p² + q²) / (2pq), where p, q are non-zero real numbers, is possible only when p = q. 2. tan² θ = (4pq / (p + q)²) – 1, where p, q are non-zero real numbers, is possible only when p = q. Which of the statements given above is/are correct?

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Q.7326·Miscellaneous·2018·Easy

Consider the following statements : 1. cos θ + sec θ can never be equal to 1·5. 2. sec² θ + cosec² θ can never be less than 4. Which of the statements given above is/are correct?

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