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Science & Tech UPSC PYQs
Master Science & Tech by practicing past year questions. Discover your strong and weak topics.
General
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.
General
'X', born in the UK, was conferred the Nobel Prize in 2025. He was a professor in an American university when this prize was announced. Identify 'X':
General
Which one of the following statements with regard to the Moidams, built by the Tai-Ahom kingdom and inscribed as a World Heritage Site by UNESCO, is/are correct? 1. They acted as army fortresses. 2. They were recreation centres of the Royals and Nobles. 3. They were burial grounds of the Royals and Nobles. 4. They were battle drill centres of the Royals and Nobles.
General
Which of the following pairs of the Corps of the Indian Army and their Headquarters is/are **not** correctly matched? 1. 3 Corps : Dimapur 2. 4 Corps : Tezpur 3. 14 Corps : Leh 4. 33 Corps : Srinagar
General
Which of the following Defence hardwares is/are manufactured in India? 1. Su-30 MKI 2. T-90 MK-III 3. Akula Submarine
General
Which of the following statements with regard to Mission Sudarshan Chakra is/are correct? 1. It is an indigenous initiative for an extensive air defence and counter-strike capability for India. 2. It includes the Ballistic Missile Defence (BMD) Programme of the Defence Research and Development Organisation (DRDO). 3. The deadline for this Mission is 2035.
General
Which of the following statements with regard to drone swarms is/are correct? 1. They use Terahertz band of frequency to communicate with the command centre. 2. Individual drones in the swarm can communicate with other drones in the swarm. 3. GPS Spoofing is a commonly used technique to counter drone swarm attack.
General
Which of the following statements with regard to Black Boxes used in modern aircrafts is/are correct? 1. They carry a beacon emitting red light pulses to facilitate underwater detection. 2. They record both the cockpit voice and flight data. 3. Their memory units are made using either stainless steel or titanium.
General
Which of the following statements with regard to stealth technology is/are correct? 1. Stealth objects have a very small radar cross-section and are coated with Radar Absorbing Material. 2. Stealth objects can be detected using specific frequencies. 3. Stealth objects are coated with metamaterials to increase the scattering of electromagnetic radiation.
General
The Bureau of Indian Standard (BIS) recently introduced a national standard to test and assess bomb disposal system. Which of the following statements with regard to this system is/are correct? 1. The new standard is known as IS 19445 : 2025. 2. It will improve interoperability of equipment across agencies. 3. It was developed by TBRL, DRDO in collaboration with the 30th Central Scientific Research Institute, Russia.
General
Which of the following statements with regard to genetic medicine is/are correct? 1. Genetic medicines correct/compensate for the faulty genes responsible for disease. 2. Engineered viruses and lipid nanoparticles are used as carriers of the genetic medicine. 3. Genetic medicines alter the entire DNA sequence.
General
Which of the following statements with regard to the National Quantum Mission (NQM) is/are correct? 1. It aims at developing intermediate-scale quantum computers with 50 – 1000 physical qubits. 2. Its implementation includes setting up of four Thematic Hubs (T-Hubs) in academic and national R&D institutes across India.
General
Which of the following statements with regard to Large Language Models (LLMs) used in machine learning is/are correct? 1. LLMs assign probabilities to the next possible words and then pick the one with the highest probability. 2. LLMs process data through mathematical optimization to minimise prediction errors. 3. LLMs produce unbiased outputs.
General
Which of the following statements about Real-World Assets (RWA) Tokenization are correct? 1. Tokenization is the process of turning real world assets into digital tokens using blockchain technology. 2. Tokenization of real world assets offers 24 × 7 access, promoting financial inclusion. 3. Tokenization of real world assets will allow the access to high growth investment opportunities for individuals in India.
General
Which of the following statements regarding the features of blockchain technology are correct? 1. Records stored in the database may be made visible to relevant stakeholders without risk of alteration. 2. Copies of the entire database are stored on multiple computers on a network, syncing within seconds. 3. Consortium blockchain is a blend of public and private blockchains allowing selective data access. 4. Mathematical algorithms make it impossible to change or delete any data once recorded and accepted.
General
Which of the following statements with regard to India's indigenous new high resolution weather model, the 'Bharat Forecast System,' is/are correct? 1. Its objective is to generate forecasts at the Panchayats cluster level. 2. It was developed by IIT Delhi.
General
Which one of the following pairs of semiconductor plants in India and their locations is **not** correctly matched?
General
Which of the following statements about DHRUV64 is/are correct? 1. It is the third chip fabricated under the DIR-V Programme with an overall aim to enable the creation of microprocessors for India. 2. It is India's first homegrown 1.0 GHz, 64-bit dual-core microprocessor.
General