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2 Science & Tech Target (Series-3) SPACE TECHNOLOGY By Dr. Ravi P. Agrahari - Scientist in IIT Delhi - Author of Mc Graw Hill Publication for Science & Technology - last 17 years teaching experience for UPSC aspirant

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5 Correction in Series-2 Video (Energy) Qus No: With reference to the usefulness of the byproducts of sugar Industry, which of the following statements is/are correct? [UPSC (Pre) ] 1. Bagasse can be used as biomass fuel for the generation of energy. 2. Molasses can be used as one of the feedstocks for the production of synthetic chemical fertilisers. 3. Molasses can be used for the production of ethanol. Select the correct answer using the codes given below. (a) 1 only (b) 1 and 3 only (b) 2 and 3 only (d) 1, 2 and 3

6 UNIT-1 ENERGY UNIT-2 WHAT TO READ AND HOW TO READ

7 Lecture 1 - Institutional Setup - Various regional centre of ISRO - ANTRIX - Difference among Satellite, Shuttle, Space craft, Launch vehicle, Rocket, Missiles - Why satellites are in the orbit : why not fall down to the surface of earth Lecture 2 - Study of Orbits - LE0/MEO/GEO/HEO - Polar/Inclined/Geostationary/ Geosynchronous/GPS Orbit

8 Lecture 3 - Satellite and its various types - Launch vehicle and its various types - Jet Engine technology - Different types of jet engine : Turbojet, Ramjet & Scramjet Lecture 4 - United Nations Office for Outer Space Affairs (UNOOSA): Roles and Responsibilities - Space law - Space Mission of India Chandrayaan I Mangalyaan Chandrayaan II Astrosat Aditya

9 Lecture 5 - Global Positioning System (GPS) (a) Global GPS (b) Regional GPS - International Space Station - International Space Mission

10 Reference Book UNIT-III Chapter-8 Indian space research programme Institutional setup, ISRO, Regional centre of ISRO, Different type of Orbit, Launching station

11 1. An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of the Earth [UPSC (Pre) ] (a) Does not exist at such distance. (b) Is neutralised by the attraction of the moon. (c) Provides the necessary speed for its steady motion. (d) Provides the necessary acceleration for its motion. 2. Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when: [UPSC (Pre) ] 1. The orbit is geosynchronous. 2. The orbit is circular. 3. The orbit lies in the plane of the Earth s equator. 4. The orbit is at an altitude of 22,236 km. Select the correct answer using the codes given below: (a) 1, 2 and 3 only (b) 1, 3 and 4 only (c) 2 and 4 only (d) 1, 2, 3 and 4

12 3. Which one of the following pairs is not correctly matched? [UPSC (Pre) 2006] Well-known Place Country (a) Baikon our : Russia (b) Kourou : French Guiana (c) Borobudur : Indonesia (d) Cannes : France 4. Consider the following statements: [UPSC (Pre) 2005] 1. A geostationary satellite is at an approximate height of 10,000 km 2. FM transmission of music is of: very good quality because the atmospheric or man-made noises which are generally frequency variations can do little harm. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

13 5. Assertion: Artificial satellites are always launched from the earth in the eastward direction. Reason: The earth rotates from west to east and so the satellite attains the escape velocity. [UPSC (Pre) 2002] (a) Both (A) and (R) are individually true and R is the correct explanation of A (b) Both (A) and (R) are individually true and R is not the correct explanation of A (c) A is true but R is false (d) A is false but R is true

14 Reference Book UNIT-III Chapter-9 Different Types of Satellite and Launch Vehicle Technology of India

15 6. In which of the following activities are Indian Remote Sensing (IRS) satellites used? [UPSC (Pre) ] 1. Assessment of crop productivity 2. Locating groundwater resources 3. Mineral exploration 4. Telecommunications 5. Traffic studies Select the correct answer using the code given below: (a) 1, 2 and 3 only (b) 4 and 5 only (c) 1 and 2 only (d) 1, 2, 3, 4 and 5 7. The Jet aircraft fly very easily and smoothly in the stratosphere. What could be the appropriate explanation? [UPSC (Pre) ] 1. There are no clouds or water vapour in the lower stratosphere. 2. There are no vertical winds in the lower stratosphere. Which of the statement(s) given above is/are correct in this context? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

16 8. Consider the following statements in respect of a jet engine and a rocket: [UPSC (Pre) -2008] (UPPCS (Pre) Exam 2009) 1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space. 2. A rocket carries its own supply of oxygen in the gas form and fuel. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both I and 2 (d) Neither 1 nor 2 9. Low temperatures (Cryogenices) find application in [UPSC (Pre) 1999] (a) space travel, surgery and magnetic levitation (b) surgery, magnetic levitation and telemetry (c) space travel, surgery and telemetry (d) space travel, magnetic levitation and telemetry

17 Reference Book UNIT-III Chapter-10 Outer Space Affairs, Space Law, International Space Missions, Space Missions of India, Global Positioning System, Space related research 30 m Telescope, Hubble Telescope, Problem of Astronauts in Space, Space History, Indian Astronauts, Kessler Syndrome, International Space Mission

18 10. With reference to Astrosat, the astronomical observatory launched by India, which of the following statements is/are correct? [UPSC (Pre) ] 1. Other than USA and Russia, India is the only country to have launched a similar observatory into space. 2. Astrosat is a 2000 kg satellite placed in an orbit at 1650 km above the surface of the Earth. Select the correct answer using the code given below: (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

19 11. Consider the following statements: The Mangalyaan launched by ISRO [UPSC (Pre) ] 1. Is also called the Mars Orbiter Mission 2. Made India the second country to have a spacecraft orbit the Mars after USA 3. Made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt Which of the statements given above is/are correct? (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

20 12. Which of the following pair is/are correctly matched? [UPSC (Pre) ] Spacecraft Purpose 1. Cassini-Huygens : Orbiting the Venus and transmitting data to the Earth 2. Messenger : Mapping and investigating the Mercury 3. Voyager 1 and 2 : Exploring the outer solar system Select the correct answer using the code given below. (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

21 13. In the context of space technology, what is Bhuvan, recently in the news? (2010) (a) A mini satellite launched by ISRO for promoting the distance education in India (b) The name given to the next Moon Impact Probe, for Chandrayan-II (c) A geoportal of ISRO with 3 D imaging capabilities of India (d) A space telescope developed by India

22 A Complete Solution for Science & Technology Thank you

23 Online classes Study IQ Offline classes Enroute IAS (Dr. Ravi Agrahari s Classes) For offline classes you can join me in Old rajendra Nagar & Mukherjee Nagar, New Delhi Whatsap: