General Science & Technology – Space, Defence, and Digital Technology
Assam Public Service Commission (APSC)
Combined Competitive Examination (CCE) – Preliminary Examination
General Studies Paper I (Objective, 200 Marks)
Topic: General Science & Technology
Sub-Topic: Space, Defence, and Digital Technology
Space, Defence, and Digital Technology – Multiple Choice Questions (MCQs) with Answers & Explanations
SPACE TECHNOLOGY (Q1–Q10)
Q1. India’s space programme is implemented by:
A. DRDO
B. BARC
C. Indian Space Research Organisation
D. CSIR
Correct Answer: C
Explanation:
ISRO is responsible for satellite launches, space missions, and space technology applications in India.
Q2. Which launch vehicle is known as the “workhorse” of ISRO?
A. GSLV Mk III
B. PSLV
C. SSLV
D. RLV
Correct Answer: B
Explanation:
PSLV is called ISRO’s workhorse due to its high success rate and frequent launches.
Q3. The primary objective of the Chandrayaan missions is to:
A. Establish lunar colonies
B. Study the Moon’s surface and composition
C. Explore Mars
D. Test nuclear weapons
Correct Answer: B
Explanation:
Chandrayaan missions focus on scientific study of the Moon, including water presence and geology.
Q4. NavIC is India’s:
A. Communication satellite
B. Weather satellite
C. Regional navigation satellite system
D. Earth observation satellite
Correct Answer: C
Explanation:
NavIC (IRNSS) provides accurate positioning and timing services over India and nearby regions.
Q5. Geostationary satellites are mainly used for:
A. Earth mapping
B. Navigation
C. Weather forecasting and communication
D. Scientific experiments only
Correct Answer: C
Explanation:
Geostationary satellites remain fixed over one location and are ideal for telecommunication and meteorical observation.
Q6. The Gaganyaan mission is related to:
A. Lunar exploration
B. Mars exploration
C. Human spaceflight
D. Space station development
Correct Answer: C
Explanation:
Gaganyaan aims to send Indian astronauts into space, marking India’s human spaceflight programme.
Q7. Remote sensing satellites are mainly used for:
A. Defence only
B. Agriculture, disaster management and resource mapping
C. Navigation only
D. Space research only
Correct Answer: B
Explanation:
Remote sensing satellites support agriculture planning, weather monitoring, and disaster management.
Q8. Low Earth Orbit (LEO) satellites are typically used for:
A. Television broadcasting
B. Navigation only
C. Earth observation and communication
D. Deep space missions
Correct Answer: C
Explanation:
LEO satellites are closer to Earth, providing high-resolution imaging and low-latency communication.
Q9. Which country was the first to land a rover on the Moon?
A. USA
B. Russia (USSR)
C. China
D. India
Correct Answer: B
Explanation:
The Soviet Union’s Lunokhod-1 was the first rover to operate on the Moon.
Q10. Space technology contributes to governance through:
A. Weapon systems only
B. Satellite-based communication and monitoring
C. Industrial automation
D. Entertainment services only
Correct Answer: B
Explanation:
Satellites support e-governance, disaster response, weather alerts, and connectivity.
DEFENCE TECHNOLOGY (Q11–Q20)
Q11. Defence research and development in India is carried out by:
A. ISRO
B. Defence Research and Development Organisation
C. CSIR
D. NPCIL
Correct Answer: B
Explanation:
DRDO develops missiles, radars, aircraft systems, and defence equipment.
Q12. Agni missiles are:
A. Surface-to-air missiles
B. Anti-tank missiles
C. Ballistic missiles
D. Cruise missiles
Correct Answer: C
Explanation:
Agni series are surface-to-surface ballistic missiles forming India’s strategic deterrence.
Q13. The BrahMos missile is a:
A. Ballistic missile
B. Hypersonic missile
C. Supersonic cruise missile
D. Anti-satellite missile
Correct Answer: C
Explanation:
BrahMos is a supersonic cruise missile, jointly developed by India and Russia.
Q14. The purpose of ballistic missile defence (BMD) is to:
A. Increase missile range
B. Destroy incoming enemy missiles
C. Launch satellites
D. Improve radar imaging
Correct Answer: B
Explanation:
BMD systems protect against incoming ballistic missile threats.
Q15. Which technology is crucial for modern warfare?
A. Horse-drawn artillery
B. Cyber and electronic warfare
C. Manual communication
D. Steam engines
Correct Answer: B
Explanation:
Cyber and electronic warfare target communication, data, and control systems.
Q16. Drones are primarily used in defence for:
A. Entertainment
B. Surveillance and reconnaissance
C. Space exploration
D. Medical research
Correct Answer: B
Explanation:
Military drones provide real-time surveillance, target acquisition, and intelligence.
Q17. Stealth technology is designed to:
A. Increase speed only
B. Reduce radar detection
C. Improve fuel efficiency only
D. Enhance payload
Correct Answer: B
Explanation:
Stealth reduces radar, infrared, and acoustic signatures.
Q18. Which system helps detect incoming aircraft or missiles?
A. Sonar
B. Radar
C. GPS
D. LIDAR
Correct Answer: B
Explanation:
Radar uses radio waves to detect and track objects at long distances.
Q19. Indigenous defence manufacturing in India is promoted under:
A. Digital India
B. Make in India
C. Skill India
D. Startup India
Correct Answer: B
Explanation:
Make in India encourages self-reliance in defence production.
Q20. Cyber warfare mainly targets:
A. Physical infrastructure only
B. Communication and information systems
C. Agricultural land
D. Natural resources
Correct Answer: B
Explanation:
Cyber warfare disrupts networks, databases, and command systems.
DIGITAL TECHNOLOGY (Q21–Q30)
Q21. Digital technology primarily involves:
A. Mechanical devices
B. Electronic data processing and communication
C. Chemical reactions
D. Nuclear processes
Correct Answer: B
Explanation:
Digital technology processes information in electronic form.
Q22. Digital India programme aims to:
A. Increase hardware manufacturing only
B. Promote digital governance and services
C. Reduce internet access
D. Focus on defence
Correct Answer: B
Explanation:
Digital India improves online services, connectivity, and digital literacy.
Q23. Cyber security focuses on:
A. Speeding up internet
B. Protecting systems and data
C. Designing software only
D. Online marketing
Correct Answer: B
Explanation:
Cyber security protects networks, devices, and sensitive information.
Q24. Which technology enables secure online transactions?
A. Virtual reality
B. Encryption
C. Robotics
D. Nanotechnology
Correct Answer: B
Explanation:
Encryption converts data into secure coded form.
Q25. Blockchain technology is characterized by:
A. Centralized control
B. Decentralized and tamper-proof records
C. High energy consumption only
D. Manual verification
Correct Answer: B
Explanation:
Blockchain maintains distributed and immutable ledgers.
Q26. Artificial Intelligence helps in:
A. Data storage only
B. Decision-making and automation
C. Mechanical engineering
D. Fuel production
Correct Answer: B
Explanation:
AI enables learning, prediction, and automated decision-making.
Q27. Cloud computing allows users to:
A. Store data only on personal devices
B. Access computing resources over the internet
C. Avoid internet usage
D. Use physical servers only
Correct Answer: B
Explanation:
Cloud computing provides on-demand access to storage and computing power.
Q28. Big Data refers to:
A. Small datasets
B. Large and complex datasets
C. Encrypted data only
D. Government data only
Correct Answer: B
Explanation:
Big Data requires advanced analytics tools due to volume and complexity.
Q29. The Internet of Things (IoT) connects:
A. People only
B. Computers only
C. Physical devices through the internet
D. Satellites only
Correct Answer: C
Explanation:
IoT links sensors, machines, and devices for data exchange.
Q30. Digital technologies mainly contribute to:
A. Reduced efficiency
B. Improved governance, security, and services
C. Manual work increase
D. Decline in innovation
Correct Answer: B
Explanation:
Digital technologies enhance efficiency, transparency, security, and quality of life.
✅ APSC Prelims Smart Tip
For Space, Defence & Digital Technology, focus on:
- Indian institutions & missions
- Defence systems and modern warfare basics
- Digital governance, cyber security, and emerging technologies
- Application-based conceptual questions
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Space technology MCQs for APSC
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Defence technology prelims questions
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ISRO missiles drones MCQs
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Cyber security digital technology MCQs
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Digital India science GS Paper I
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Space defence current affairs APSC
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Emerging defence technologies MCQs