Space Technology

Consider the following statements with regard to involvement of private entities in India’s space programme : 1. The Indian National Space Promotion and Authorisation Centre (IN-SPACe) is an autonomous agency formed to facilitate participation of private entities. 2. Agnikul Cosmos launched the world’s first flight using 3D-printed rocket engine. 3. Skyroot Aerospace has developed liquid fuel for GSLV. Which of the statements given above is/are correct ?

Consider statements that all UAVs can vertically land, all can automatically hover, and all can use only batteries.

Consider the listed space missions—Aditya-L1, XPoSat and Gaganyaan—and identify how many statements about them are correct.

Match Dornier-228, IL-76 and C-17 Globemaster with their aircraft roles and identify how many pairs are correct.

With reference to radioisotope thermoelectric generators (RTGs), consider the following statements: 1. RTGs are miniature fission reactors. 2. RTGs are used for powering the onboard systems of spacecrafts. 3. RTGs can use Plutonium-238, which is a by-product of weapons development. Which of the statements given above are correct?

Consider the following statements: Statement-I: Giant stars live much longer than dwarf stars. Statement-II: Compared to dwarf stars, giant stars have a greater rate of nuclear reactions. Which one of the following is correct in respect of the above statements?

Consider the following pairs : Objects in Description space 1. Cepheids Giant clouds of dust and gas in space 2. Nebulae Stars which brighten and dim periodically 3. Pulsars Neutron stars that are formed when massive stars run out of fuel and collapse How . many of the above pairs are correctly matched?

Which one of the following countries has its own Satellite Navi~ation System?

If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems could fail. 2. Tsunamis could occur at equatorial regions. 3. Power grids could be damaged. 4. Intense auroras could occur over much of the Earth. 5. Forest fires could take place over much of the planet. 6. Orbits of the satellites could be disturbed. 7. Shortwave radio communication of the aircraft flying over polar regions could be interrupted. Select the correct answer using the code given below:

“The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft. The experiment in question refers to

With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements : 1. IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits. 2. IRNSS covers entire India and about 5500 sq. km beyond its borders. 3. India will have its own satellite navigation system with full global coverage by the middle of 2019. Which of the statements given above is/are correct?

With reference to India’s satellite launch vehicles, consider the following statements: 1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites. 2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth. 3. GSLV Mk III is a four-staged launch l vehicle with the first and third stages l using solid rocket motors; and the second and fourth stages using liquid rocket engines. Which of the statements given above is/are correct.?

What is the purpose of ‘evolved Laser Interferometer Space Antenna (ELISA)’ project?

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.

The Mangalyaan launched by ISRO 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?

The term ‘Goldilocks Zone’ is often seen in the news in the context of

Indira Gandhi Prize for Peace, Disarmament and Development for 2014 was given to which one of the following?

In which of the following activities are Indian Remote Sensing (IRS) satellites used?

The term ‘IndARC’, sometimes seen in the news, is the name of

Which of the following pair is/are correctly matched? 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

Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe? 1\. Detection of microwaves in space 2\. Observation of redshirt phenomenon in space 3\. Movement of asteroids in space 4\. Occurrence of supernova explosions in space code

Which is the difference between asteroids and comets? 1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material. 2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury. 3. Comets show a perceptible glowing tail, while asteroids do not. Which of the statements given above is/are correct?

Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when: 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: