The ISRO's- PSLV Reading Answers

Jul 26, 2024

The ISRO's- PSLV Reading Answers is an academic reading answers topic. The ISRO's- PSLV Reading Answers have a total of 7 IELTS questions in total. In the questions, you have to to tell whether the statement is true or false.

Candidates should read the IELTS Reading passage thoroughly to recognize synonyms, identify keywords, and answer the questions below. IELTS Reading practice papers, which feature topics such as The ISRO's- PSLV Reading Answers. Candidates can use IELTS reading practice questions and answers to enhance their performance in the reading section.

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Section 1

Read the Passage to Answer the Following Questions

The ISRO's- PSLV

The Polar Satellite Launch Vehicle (PSLV) is an expendable medium-lift launch vehicle designed and operated by the Indian Space Research Organisation (ISRO). It was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into sun-synchronous orbits, a service that was, until the advent of the PSLV in 1993, commercially available only from Russia. PSLV can also launch small size satellites into Geostationary Transfer Orbit (GTO). Some notable payloads launched by PSLV include India's first lunar probe Chandrayaan-1, India's first interplanetary mission, Mars Orbiter Mission (Mangalyaan) and India's first space observatory, Astrosat. PSLV has gained credence as a leading provider of rideshare services for small satellites, due its numerous multi-satellite deployment campaigns with auxiliary payloads usually ride sharing along an Indian primary payload.

As of February 2021, PSLV has launched 342 foreign satellites from 36 countries. Most notable among these was the launch of PSLV-C37 on 15 February 2017, successfully deploying 104 satellites in sun-synchronous orbit, tripling the previous record held by Russia for the highest number of satellites sent to space on a single launch, until 24 January 2021, when SpaceX launched the Transporter-1 mission on a Falcon 9 rocket carrying 143 satellites into orbit. Payloads can be integrated in tandem configuration employing a Dual Launch Adapter. Smaller payloads are also placed on equipment deck and customized payload adapters.

Studies to develop a vehicle capable of delivering 600 kg payload to 550 km sun-synchronous orbit from SHAR began in 1978. Among 35 proposed configurations, four were picked and by November 1980, a vehicle configuration with two strap-on on a core booster (S80) with 80 tonne solid propellant loading each, a liquid stage with 30 tonne propellant load (L30) and an upper stage called Perigee-Apogee System (PAS) was being considered. The PSLV was first launched on 20 September 1993. The first and second stages performed as expected, but an attitude control problem led to the collision of the second and third stages at separation, and the payload failed to reach orbit

After this initial setback, the PSLV successfully completed its second mission in 1994. The fourth launch of PSLV suffered a partial failure in 1997, leaving its payload in a lower than planned orbit. In November 2014, the PSLV had launched 34 times with no further failures. (Although launch 41: August 2017 PSLV-C39 was unsuccessful.) PSLV continues to support Indian and foreign satellite launches especially for low Earth orbit (LEO) satellites. It has undergone several improvements with each subsequent version, especially those involving thrust, efficiency as well as weight. In November 2013, it was used to launch the Mars Orbiter Mission, India's first interplanetary probe. In June 2018, the Union Cabinet approved 6,131 crore (US$860 million) for 30 operational flights of the PSLV scheduled to take place between 2019 and 2024. ISRO is scheduling to privatise the operations of PSLV and will work through a joint venture with private industries. The integration and launch will be managed an industrial consortium through Antrix Corporation.

Section 2

Solution and Explanation

Questions 1-7

Do the following statements agree with the information given in the Reading Passage?

TRUE - If the statement agrees with the information.
FALSE - If the statement contradicts the information.
NOT GIVEN - If there is no information on this.

The PSLV rockets launch vehicle is much more powerful than its Russian counterpart.

Answer: NOT GIVEN
Explanation: The passage mentions that before PSLV, sun-synchronous orbit launches were commercially available only from Russia, but it does not provide any information comparing the power of PSLV to Russian launch vehicles.

The Mangalyaan was hurled into the trajectory by PSLV.

Answer: TRUE
Supporting statement:“..........Some notable payloads launched by PSLV include... India's first interplanetary mission, Mars Orbiter Mission (Mangalyaan).........”
Keywords: Mangalyaan, PSLV
Keyword Location: para 1, Line 5
Explanation: The passage explicitly states that PSLV launched the Mars Orbiter Mission, also known as Mangalyaan. This confirms that the PSLV was responsible for launching Mangalyaan, making this statement true.

Currently, the PSLV embraces the record for transporting maximum figure of satellites in the orbit.

Answer: FALSE
Supporting statement:“........Most notable among these was the launch of PSLV-C37 on 15 February 2017, successfully deploying 104 satellites in sun-synchronous orbit, tripling the previous record held by Russia... until 24 January 2021...........”
Keywords: satellites, currently
Keyword Location: para 2, Lines 2-5
Explanation: The passage indicates that while PSLV held the record for the highest number of satellites launched in a single mission with 104 satellites, this record was surpassed by SpaceX's Transporter-1 mission, which launched 143 satellites in January 2021. Hence, the PSLV does not currently hold the record, making this statement false.

Payloads can be united in corresponding configuration commissioning a Dual Launch Adapter.

Answer: TRUE
Supporting statement:“.........Payloads can be integrated in tandem configuration employing a Dual Launch Adapter..........”
Keywords: payloads, united
Keyword Location: para 2, Line 6
Explanation: The passage clearly states that payloads can be integrated using a Dual Launch Adapter. This confirms that payloads can indeed be united in a corresponding configuration using this adapter, making the statement true.

The foremost launch of the PSLV was a triumph.

Answer: FALSE
Supporting statement:“.........The PSLV was first launched on 20 September 1993. The first and second stages performed as expected, but an attitude control problem led to the collision ..........”
Keywords: launch, triumph
Keyword Location: para 3, Lines 7-9
Explanation: The passage describes the first launch of PSLV as unsuccessful due to a collision between the second and third stages, which prevented the payload from reaching orbit. This clearly indicates that the first launch was not a triumph, making the statement false.

There have been no enhancements in the successive types of the PSLV.

Answer: FALSE
Supporting statement:“.........It has undergone several improvements with each subsequent version, especially those involving thrust, efficiency as well as weight...........”
Keywords: enhancements, successive
Keyword Location: para 4, Line 4
Explanation: The passage explicitly mentions that PSLV has seen several improvements in its successive versions, including enhancements in thrust, efficiency, and weight. This directly contradicts the statement, making it false.

ISRO is looking to collaborate with private firms for the operations of PSLV.

Answer: TRUE
Supporting statement:“.........ISRO is scheduling to privatise the operations of PSLV and will work through a joint venture with private industries..........”
Keywords: firms, operations
Keyword Location: para 4, Line 7
Explanation: The passage indicates that ISRO plans to privatize the operations of PSLV and collaborate with private industries through a joint venture. This clearly supports the statement, making it true.

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