Practice

UPSC 2011 Prelims Questions with Answers

100 previous year UPSC Prelims questions on the UPSC 2011 Prelims. Choose an option to see the answer and explanation.

Explanations state facts as of the year each question was asked; words like “recently” refer to that year.

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Showing 71–80 of 100 questions

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UPSC 2011 Science and Technology · Miscellaneous
Q71. A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is
UPSC 2011 Science and Technology · Miscellaneous
Q72. A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?
1. DVD supports Standard Definition video while BD supports High Definition Video.
2. Compared to a DVD, the BD format has several times more storage capacity.
3. The thickness of BD is 2.4 mm while that of DVD is 1.2 mm.
Which of the statements given above is/are correct?
UPSC 2011 Science and Technology · Miscellaneous
Q73. When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because:
UPSC 2011 Science and Technology · Miscellaneous
Q74. A layer in the Earth’s atmosphere called Ionosphere facilitates radio communication. Why?
1. The presence of ozone causes the reflection of radio waves to Earth.
2. Radio waves have a very long wavelength.
Which of the statements given above is/are correct?
UPSC 2011 Science and Technology · Miscellaneous
Q75. A genetically engineered form of brinjal, known as the Bt-brinjal, has been developed. The objective of this is:
UPSC 2011 Indian Economy · Taxation
Q76. Which one of the following is not a feature of "Value Added Tax"?
UPSC 2011 Modern History · Economic Policies of the British
Q77. The tendency for increased litigation was visible after the introduction of the land settlement system of Lord Cornwallis in 1793. The reason for this is normally traced to which of the following provisions?
UPSC 2011 Modern History · Economic Policies of the British
Q78. With reference to the period of colonial rule in India, "Home Charges" formed an important part of the drain of wealth from India.
Which of the following funds constituted "Home Charges"?
1. Funds used to support the India Office in London.
2. Funds used to pay salaries and pensions of British personnel engaged in India.
3. Funds used for waging wars outside India by the British.
Select the correct answer using the codes given below:
UPSC 2011 Environment and Ecology · Species
Q79. A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existence is threatened due to the destruction of its habitat. Which one of the following could be that animal?
UPSC 2011 Geography · Indian Geography
Q80. Among the following States, which one has the most suitable climatic conditions for the cultivation of a large variety of orchids with minimum cost of production, and can develop an export oriented industry in this field?

Answer key for these questions

QUPSC yearCorrect answer
712011(a) O positive
722011(b) 1 and 2 only
732011(b) Roots are starved of energy
742011(d) Neither 1 nor 2
752011(a) To make it pest-resistant
762011(d) It is basically subject of the Central Government and the State Governments are only a facilitator for its successful implementation
772011(d) None of the (a), (b) and (c) above
782011(b) 1 and 2 only
792011(b) Indian wild ass
802011(b) Arunachal Pradesh

Frequently asked questions

How many previous year UPSC questions are there on all subjects?

This page covers 100 previous year UPSC Prelims GS Paper-I questions on the UPSC 2011 Prelims, asked from 1995 to 2025. Each has the correct answer and an explanation.

How should I use previous year UPSC questions for Prelims?

Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.

Which years are covered for all subjects?

Questions on the UPSC 2011 Prelims are available for 31 years, from 1995 to 2025. Use the Year filter to practise a single paper.