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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.271·Miscellaneous·2025·Easy

A light bulb rated as 60 W at 220 V has a potential difference of 110 V across its ends. The power dissipated in this light bulb is:

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Q.272·Miscellaneous·2025·Easy

There are two natural numbers m and n (m>n). When m is divided by 12, it leaves a remainder 4. When n is divided by 12, it leaves a remainder 6. Which of the following statements is/are correct? I. The remainder when (m+n) is divided by 12 is 10. II. The remainder when (m−n) is divided by 12 is 10. Select the correct answer using the code given below:

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Q.273·Miscellaneous·2025·Easy

A train of certain length takes time t to pass completely through a station of length x. The same train with same speed takes time 2t to pass completely through another station of length y. What is the time taken by the train to pass completely through a station of length (x+y)?

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Q.274·Miscellaneous·2025·Easy

A motorcycle has initial velocity of 5 m/s. After 3 seconds, the velocity is 7 m/s. The displacement of the motorcycle in 3 seconds is:

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Q.275·Miscellaneous·2025·Easy

if your image appears to be erect, no matter how far you stand from a mirror, the mirror is likely to be :

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Q.276·Miscellaneous·2025·Easy

The minimum power required to lift a mass of 50 kg up to a vertical distance of 8 m in 10 sis: (Take g = 10 m/s2)

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Q.277·Miscellaneous·2025·Easy

Which one among the following tributaries of Indus River does not originate in the Himalayas?

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Q.278·Miscellaneous·2025·Easy

Salal Power Project is situated on which one among the following rivers?

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Q.279·Miscellaneous·2025·Easy

Consider the following for the next two (02) items that follow: A frustum of a right cone has a top of diameter 2k, bottom of diameter 2.5k and height h. What is the whole surface area of the frustum?

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Q.280·Miscellaneous·2025·Easy

As per the Annual Report 2023 - 24 of the Ministry of Mines, Government of India, which of the following are the major bauxite producing states in India?

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Q.281·Miscellaneous·2025·Easy

Which of the following statements with reference to saline soil in India is/are correct ? 1. They are rich in nitrogen. 2. They occur in arid and semi-arid regions, and in waterlogged and swampy areas. Select the answer using the code given below :

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Q.282·Miscellaneous·2025·Easy

What is the maximum value of the sum of the numbers 36,33,30,27,24,...?

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Q.283·Miscellaneous·2025·Easy

Which one among the following places is situated close to the Pearl River Estuary in Asia?

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Q.284·Miscellaneous·2025·Easy

Which of the following statements with reference to Jordan is/are correct ? 1.The country of Jordan was created through the British Mandate after World War I. 2. It is a landlocked country. Select the answer using the code given below :

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Q.285·Miscellaneous·2025·Easy

Which one among the following is home to the endangered mountain gorillas in Africa?

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Q.286·Miscellaneous·2025·Easy

Consider the following statements with regard to Australia : 1. The Coral Sea separates the Great Barrier Reef from the South Pacific. 2. The Great Dividing Range extends from Melbourne to Perth in Australia. Which of the statements given above is/are correct?

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Q.287·Miscellaneous·2025·Easy

Which of the following statements with reference to Humus is/are correct? 1. It is a dark coloured amorphous substance. 2. Being colloidal in nature, it serves as a reservoir of nutrients. Select the answer using the code given below:

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Q.288·Miscellaneous·2025·Easy

River Danube does not flow through which one of the following capital cities in Europe ?

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