Science, Space, Technology & Environment Previous Year Questions (PYQs) for XAT: 18+ Solved Questions with Step-by-Step Solutions

    Solve 18+ Science, Space, Technology & Environment previous year questions for XAT with answers and detailed solutions. Free sample questions below.

    Chapter Roadmap: Science, Space, Technology & Environment

    Chapter Roadmap

    1. Space Exploration & Astronomy
    ISRO missions, NASA probes, orbital mechanics. (High Weightage)
    2. Technology, AI & Innovations
    Generative AI, semiconductors, private space tech. (Highest Weightage)
    3. Environment & Conservation
    Climate summits, extreme weather, biodiversity. (Moderate Weightage)

    Topic Hero: Space Exploration & Astronomy

    Space Exploration & Astronomy

    The cosmos is a theatre of geopolitics, technological supremacy, and national pride. For exams, track four dimensions of every mission:

    Agency
    Who built it? ISRO, NASA, ESA, JAXA, CNSA
    Vehicle
    What carried it? PSLV, LVM3, Falcon Heavy
    Target
    Where is it going? L1, Asteroids, Corona
    Milestone
    Why does it matter? Firsts, records, samples

    Science, Space, Technology & Environment: Solved Questions with Step-by-Step Explanations (5 Problems)

    Question 1 · General Knowledge (GK) MCQ

    Which rocket was used to launch Aditya-L1?

    1. A.

      PSLV-C57

    2. B.

      LVM3-M4

    3. C.

      NGLV

    4. D.

      GSLV-F12

    5. E.

      TERLS

    Correct Answer:

    A

    Step-by-Step Solution

    Key idea: This is a factual recall question about ISRO's recent space missions and their corresponding launch vehicles.

    Step 1: Identify the mission. The question asks for the rocket used to launch Aditya-L1.

    Step 2: Recall the launch details of Aditya-L1. It was India's first solar mission, launched on September 2, 2023.

    Step 3: Identify the launch vehicle. The Polar Satellite Launch Vehicle in its XL configuration, specifically the PSLV-C57, was used for this mission.

    Step 4: Evaluate the options. PSLV-C57 matches the historical record. LVM3-M4 was used for Chandrayaan-3.

    Answer: A

    Question 2 · General Knowledge (GK) MCQ

    India recently launched its first indigenous 64-bit dual-core microprocessor. What is it named?

    1. A.

      DHRUV64

    2. B.

      VEGA-X

    3. C.

      SHAKTI-64

    4. D.

      ARYA-Core

    5. E.

      PRITHVI-9

    Correct Answer:

    A

    Step-by-Step Solution

    Key idea: This is a factual recall question about India's recent milestones in semiconductor and microprocessor development.

    Step 1: Identify the product. The question asks for the name of India's first indigenous 64-bit dual-core microprocessor.

    Step 2: Recall recent developments by Indian research agencies. The Centre for Development of Advanced Computing (C-DAC) unveiled a new microprocessor to boost semiconductor self-reliance.

    Step 3: Identify the name. The microprocessor is named DHRUV64, operating at 1.0 GHz.

    Step 4: Evaluate the options. "DHRUV64" is the correct name. The other options are fabricated or refer to different projects.

    Answer: A

    Question 3 · General Knowledge (GK) MCQ

    Which of the following breakthrough decisions was taken at the COP 27(8-20 Nov 2022, Sharm el-Sheikh, Egypt)?

    1. A.

      Establish and operationalize a “loss and damage” fund

    2. B.

      Establish and operationalize a “global ecosystem services payments mechanism”

    3. C.

      Establish and operationalize a “global early warning system” for weather events

    4. D.

      Accept and operationalize a “global carbon tax and trading mechanism”

    5. E.

      Accept and operationalize a “Net zero” target for every country

    Correct Answer:

    A

    Step-by-Step Solution

    Key idea: This is a factual recall question about major outcomes of international climate change conferences.

    Step 1: Identify the event. The question asks for a breakthrough decision at COP 27, held in Sharm el-Sheikh, Egypt, in November 2022.

    Step 2: Recall the major historical outcome of COP 27. The most significant and widely reported breakthrough was the agreement to establish a "loss and damage" fund.

    Step 3: Understand the purpose. This fund is designed to assist vulnerable developing countries that are disproportionately affected by climate change impacts.

    Step 4: Evaluate the options. "Establish and operationalize a 'loss and damage' fund" is the correct and specific breakthrough of COP 27.

    Answer: A

    Question 4 · General Knowledge (GK) MCQ

    India recently achieved a milestone by placing its heaviest payload ever into orbit using the LVM3-M6 rocket. Which of the following is a satellite, launched as a part of this mission?

    1. A.

      Oceansat-3

    2. B.

      RISAT-2BR1

    3. C.

      GSAT-24

    4. D.

      BlueBird Block-2

    5. E.

      XAT-2026

    Correct Answer:

    D

    Step-by-Step Solution

    Key idea: This is a current affairs recall question focusing on recent ISRO milestones and payload capacities.

    Step 1: Identify the mission mentioned. The question specifies the LVM3-M6 rocket and the "heaviest payload ever into orbit".

    Step 2: Recall recent ISRO launches. The LVM3-M6 mission successfully launched the BlueBird Block-2 satellite.

    Step 3: Verify the payload weight. BlueBird Block-2 weighed approximately 6,100 kg, making it the heaviest payload ever launched by the LVM3 from Indian soil.

    Step 4: Evaluate the options. Oceansat-3, RISAT-2BR1, and GSAT-24 were launched on earlier missions with lower payload weights.

    Answer: D

    Question 5 · General Knowledge (GK) MCQ

    What is the common terminology used to describe the following applications: ChatGPT, Google Bard, Chatsonic?

    1. A.

      Generative AI Tools

    2. B.

      Dating Tools

    3. C.

      Gaming Applications

    4. D.

      News Aggregators

    5. E.

      UPI Applications

    Correct Answer:

    A

    Step-by-Step Solution

    Key idea: This is a terminology recall question in the domain of emerging technologies.

    Step 1: Identify the applications listed: ChatGPT, Google Bard, and Chatsonic.

    Step 2: Recall their core functionality. These applications use Large Language Models (LLMs) to generate human-like text, code, or images based on user prompts.

    Step 3: Match the functionality to the correct terminology. The industry-standard term for AI that creates new content is "Generative AI".

    Step 4: Evaluate the options. "Generative AI Tools" is the only accurate classification.

    Answer: A

    More previous year questions (pyqs) in this unit

    chapter
    Science, Space, Technology & Environment Previous Year Questions (PYQs) for XAT: 18+ Solved Questions with Step-by-Step Solutions

    Solve 18+ Science, Space, Technology & Environment previous year questions for XAT with answers and detailed solutions. Free sample questions below.

    A question from this chapter

    Question 1

    Which rocket was used to launch Aditya-L1?

    Question 2

    India recently launched its first indigenous 64-bit dual-core microprocessor. What is it named?

    Question 3

    Which of the following breakthrough decisions was taken at the COP 27(8-20 Nov 2022, Sharm el-Sheikh, Egypt)?

    Question 4

    India recently achieved a milestone by placing its heaviest payload ever into orbit using the LVM3-M6 rocket. Which of the following is a satellite, launched as a part of this mission?

    Question 5

    What is the common terminology used to describe the following applications: ChatGPT, Google Bard, Chatsonic?

    Free preview ends here

    Login to view the complete previous-year questions and solutions

    Creating an account is free. You get the rest of this chapter, step-by-step solutions, and a study plan built around the topics you are actually weak at.

    Login to continueSee plans
    Why MastersUp

    Personalised first. High quality throughout.

    Most platforms hand everyone the same content. Here the content moves with your performance, topic by topic.

    Built around you, not around a syllabus PDF

    Every answer you give moves your topic-level intelligence rate. The next question, the next revision card and tomorrow's plan all change with it.

    Revision that hits your weak spots

    We only revise topics you have actually attempted and are still below the safe bar on — never the same chapter on repeat.

    Questions calibrated to the real exam

    Each question carries a measured toughness. You are served a rung above your current level, so practice keeps stretching you.

    Notes written for recall, not for volume

    Full lesson cards for first study, curated short-note cards for the last mile — with derivations, traps and exam patterns marked.

    One place for everything

    Notes, chapter practice, previous-year questions, test series and full-length papers — all feeding one picture of your preparation.

    Honest progress

    No vanity streaks. Progress here means chapters mastered and accuracy that held up on harder questions.

    Unlock the whole course

    Full notes and short notes, the complete question bank with worked solutions, mock tests, full-length papers, and an adaptive plan that rebuilds itself as you improve.

    View all plansStart free