With reference to Indian satellites and their launchers, consider the following statements: 1. All the INSAT-series of satellites were launched abroad 2. PSLVs were used to launch IRS-series of satellites 3. India used the indigenously built cryogenic eng

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Q: 139 (IAS/2002)
With reference to Indian satellites and their launchers, consider the following statements:
1. All the INSAT-series of satellites were launched abroad
2. PSLVs were used to launch IRS-series of satellites
3. India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV
4. GSAT, launched in the year 2001, has payloads to demonstrate digital broadcasts and internet services
Which of these statements are correct?

question_subject: 

Science & Technology

question_exam: 

IAS

stats: 

0,49,114,49,87,17,10

keywords: 

{'indian satellites': [0, 0, 1, 0], 'satellites': [0, 1, 0, 0], 'gsat': [0, 0, 1, 0], 'payloads': [0, 0, 1, 0], 'digital broadcasts': [0, 0, 1, 0], 'gslv': [0, 0, 1, 1], 'internet services': [0, 0, 1, 0], 'pslvs': [0, 0, 1, 1], 'cryogenic engines': [0, 1, 0, 1], 'india': [8, 1, 7, 13], 'third stage': [0, 0, 1, 1]}

The given question requires knowledge about Indian satellites and launch vehicles. Let`s analyse each statement singly:

1. "All the INSAT-series of satellites were launched abroad" - This statement is true as the INSAT-series of satellites were launched from foreign stations like Kourou in French Guiana or Kennedy Space Center in the USA.

2. "PSLVs were used to launch IRS-series of satellites" - This statement is true. Polar Satellite Launch Vehicle (PSLV) has been used to launch several Indian Remote Sensing (IRS) satellites into the orbit.

3. "India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV" - This statement is also true. India`s first indigenous cryogenic engine was used in the Geosynchronous Satellite Launch Vehicle (GSLV).

4. "GSAT, launched in the year 2001, has payloads to demonstrate digital broadcasts and internet services" - Again this statement is true. GSAT-1, launched in 2001, carried 36 transponders, which were meant for digital broadcasting and internet services.

Hence, all the statements are correct which aligns with option 1: 1, 2, 3 and 4 are correct