Copyright @ Study-IQ education...Science & Tech Target- 2018 (Series-3) SPACE TECHNOLOGY By Dr. Ravi P. Agrahari - Scientist in IIT Delhi - Author of Mc Graw Hill Publication for Science

Copyright @ Study-IQ education

Science & Tech Target- 2018 (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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Correction in Series-2 Video (Energy)Qus No: 13

13. With reference to the usefulness of the by-products of sugar Industry, which of the following statements is/are correct? [UPSC (Pre) - 2013]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


UNIT-1ENERGY

UNIT-2

WHAT TO READ AND HOW TO READ


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

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 IMangalyaanChandrayaan IIAstrosatAditya

Lecture 5

- Global Positioning System (GPS)(a) Global GPS(b) Regional GPS

- International Space Station

- International Space Mission


Reference Book

UNIT-IIIChapter-8

Indian space research programme Institutional setup, ISRO, Regional centre of ISRO, Different type of Orbit, Launching station


1. An artificial satellite orbiting around the Earth does notfall down. This is so because the attraction of the Earth [UPSC (Pre) - 2011]

(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) - 2011]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


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 km2. 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


5. Assertion: Artificial satellites are alwayslaunched from the earth in the eastward direction.Reason: The earth rotates from west to east and sothe satellite attains the escape velocity. [UPSC (Pre)

2002]

(a) Both (A) and (R) are individually true and R is thecorrect explanation of A(b) Both (A) and (R) are individually true and R is notthe correct explanation of A(c) A is true but R is false(d) A is false but R is true


Reference Book

UNIT-IIIChapter-9

Different Types of Satellite and Launch Vehicle Technology of India


6. In which of the following activities are Indian Remote Sensing (IRS) satellites used? [UPSC (Pre) - 2015]1. Assessment of crop productivity 2. Locating groundwater resources3. Mineral exploration 4. Telecommunications5. Traffic studiesSelect 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) - 2011]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

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

Reference Book

UNIT-IIIChapter-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

10. With reference to ‘Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct? [UPSC (Pre) -2016]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


11. Consider the following statements:The Mangalyaan launched by ISRO [UPSC (Pre) -2016]1. Is also called the Mars Orbiter Mission2. Made India the second country to have a spacecraft orbit the Mars after USA3. Made India the only country to be successful in making its spacecraft orbit the Mars in its very first attemptWhich 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


12. Which of the following pair is/are correctly matched? [UPSC (Pre) - 2014]

Spacecraft Purpose1. Cassini-Huygens : Orbiting the Venus and

transmitting data to the Earth 2. Messenger : Mapping and investigating the

Mercury3. Voyager 1 and 2 : Exploring the outer solar

systemSelect 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


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


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Copyright @ Study-IQ education...Science & Tech Target- 2018 (Series-3) SPACE TECHNOLOGY By Dr. Ravi P. Agrahari - Scientist in IIT Delhi - Author of Mc Graw Hill Publication for Science