UPSC CSE Prelims · 2011
UPSC Prelims 2011 Science — Solved PYQs with Answers
17 solved UPSC (IAS) Prelims 2011 Science & Technology previous year questions, each with the correct answer and a detailed explanation.
← All UPSC 2011 PYQs · All Science PYQs · Science strategy
- At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chro…
- Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antio…
- An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Ear…
- Which is the difference between asteroids and comets? 1. Asteroids are small rocky planetoids, while comets ar…
- Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in su…
- Microbial fuel cells are considered a source of sustainable energy. Why? 1. They use living organisms as catal…
- The function of heavy water in a nuclear reactor is to
- A company marketing food products advertises that its items do not contain trans fats. What does this campaign…
- What is the difference between a CFL and an LED lamp? 1. To produce light, a CFL uses mercury vapour and phosp…
- Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like…
- Recently, “oilzapper” was in the news. What is it?
- A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the …
- A new optical disc format known as the Blu- ray Disc (BD) is becoming popular. In what way is it different fro…
- When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and d…
- A layer in the Earth’s atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of o…
- A genetically engineered form of brinjal, known as the Bt-brinjal, has been developed. The objective of this i…
- Consider the following: 1. Photosynthesis 2. Respiration 3. Decay of organic matter 4. Volcanic action Which o…