Current Affairs chapter practice

Science and Technology in News MCQs

Practise 83+ Science and Technology in News MCQs for UPSC Prelims in Current Affairs, including 12+ previous year questions. The sample set below is shown with correct answers and explanations.

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Sample Science and Technology in News questions

12 sample questions are shown here; sign up free to practise all 83.

Q1Current AffairsScience and Technology in NewsPYQ 2026

Which one of the following pairs of semiconductor plants in India and their locations is not correctly matched?

  • ACG Power and Industrial Solutions Pvt. Ltd. in partnership with Renesas Electronics and STARS Microelectronics : Gujarat
  • BTata Semiconductor Assembly and Test Pvt. Ltd. : Assam
  • CHCL-Foxconn Joint Venture India Chip Ltd. : Madhya PradeshCorrect
  • DSicSem Pvt. Ltd. : Odisha

Explanation

UPSC provisional key: (C), Series A question 83. The HCL–Foxconn joint venture is located near Jewar airport in the YEIDA area of Uttar Pradesh, not Madhya Pradesh. The other three projects are correctly paired with Gujarat, Assam and Odisha.

Sources: UPSC provisional answer key · Cabinet: HCL–Foxconn semiconductor unit in Uttar Pradesh · PIB: semiconductor plants in India, September 2025

Why the other options are incorrect
Option A

This pair is correctly matched: the CG Power–Renesas–STARS project is in Gujarat. The question asks for the incorrectly located project, so this correct state assignment should be eliminated.

Option B

Tata’s semiconductor assembly-and-test project is in Assam, making this a correct pair. Do not confuse it with Tata’s separate semiconductor fabrication project in Gujarat.

Option D

The SicSem project is in Odisha, so this is correctly matched. The mismatch in the list is the HCL–Foxconn project, which belongs in Uttar Pradesh.

Q2Current AffairsScience and Technology in NewsPYQ 2026

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. Select the answer using the code given below:

  • A1 onlyCorrect
  • B2 only
  • CBoth 1 and 2
  • DNeither 1 nor 2

Explanation

UPSC provisional key: (A), Series A question 84. BharatFS is intended to improve local forecasting at approximately 6 km resolution, useful at the level of clusters of panchayats. It was developed by IITM, Pune, with other Ministry of Earth Sciences institutions, not IIT Delhi, so only statement 1 is correct.

Sources: UPSC provisional answer key · Ministry of Earth Sciences: Parliament answer on Bharat Forecast System · PIB: forecasting and panchayat-level services

Why the other options are incorrect
Option B

Statement 2 names the wrong institution. IITM means Indian Institute of Tropical Meteorology, Pune; it must not be confused with the Indian Institute of Technology Delhi.

Option C

The local-scale objective in statement 1 is correct, but the developer named in statement 2 is not. The government identifies IITM, Pune, with NCMRWF and IMD support, as the development team.

Option D

This rejects a genuine objective of the higher-resolution model. Panchayat-cluster forecasting is consistent with the improved spatial resolution, even though the IIT Delhi attribution is incorrect.

Q3Current AffairsScience and Technology in NewsPYQ 2026

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. Select the answer using the code given below:

  • A1 only
  • B2 only
  • CBoth 1 and 2Correct
  • DNeither 1 nor 2

Explanation

UPSC provisional key: (C), Series A question 79. Both descriptions are confirmed by the government announcement. C-DAC developed DHRUV64 as a homegrown 1.0 GHz, 64-bit, dual-core processor, and it is described as the third fabricated chip under the Digital India RISC-V programme.

Sources: UPSC provisional answer key · PIB: DHRUV64 and the DIR-V chip sequence, 15 December 2025

Why the other options are incorrect
Option A

Statement 1 is correct but not sufficient. The official announcement also identifies DHRUV64 as India’s first homegrown 1.0 GHz, 64-bit, dual-core microprocessor, making statement 2 correct.

Option B

The processor specification in statement 2 is correct, but statement 1 should also be selected. PIB describes DHRUV64 as the third chip fabricated under DIR-V, following THEJAS32 and THEJAS64.

Option D

Neither statement needs to be rejected. The official DHRUV64 release expressly confirms both its DIR-V sequence and the specified clock speed, word size and dual-core configuration.

Q4Current AffairsScience and Technology in NewsPYQ 2025

Consider the following statements regarding AI Action Summit held in Grand Palais, Paris in February 2025: 1. Co-chaired with India, the event builds on the advances made at the Bletchley Park Summit held in 2023 and the Seoul Summit held in 2024. 2. Along with other countries, US and UK also signed the declaration on inclusive and sustainable AI. Which of the statements given above is/are correct?

  • A1 onlyCorrect
  • B2 only
  • CBoth 1 and 2
  • DNeither 1 nor 2

Explanation

Correct. Paris 2025 was co-chaired with India and continued the Bletchley 2023 and Seoul 2024 sequence, but the US and UK did not sign the final declaration.

Why the other options are incorrect
Option B

The US and UK notably did not sign the declaration on inclusive and sustainable AI at the summit.

Option C

Statement 2 is incorrect because the US and UK refused to sign the Paris declaration.

Option D

Statement 1 is correct. The summit was indeed co-chaired with India and followed the Bletchley and Seoul summits.

Q5Current AffairsScience and Technology in NewsPYQ 2021

The term 'ACE2' is talked about in the context of:

  • AGenes introduced in the genetically modified plants
  • BDevelopment of India's own satellite navigation system
  • CRadio collars for wildlife tracking
  • DSpread of viral diseasesCorrect

Explanation

Correct. ACE2 (Angiotensin-Converting Enzyme 2) is the receptor that SARS-CoV-2 uses to enter human cells, making it central to viral disease spread.

Why the other options are incorrect
Option A

ACE2 is not related to genetically modified plant genes; it is a human cell-surface receptor.

Option B

ACE2 has no connection with satellite navigation systems such as NavIC.

Option C

Radio collars are used for wildlife tracking and are unrelated to ACE2.

Q6Current AffairsScience and Technology in NewsPYQ 2020

In India, the term 'Public Key Infrastructure' is used in the context of:

  • ADigital security infrastructureCorrect
  • BFood security infrastructure
  • CHealth care and education infrastructure
  • DTelecommunication and transportation infrastructure

Explanation

Correct. Public Key Infrastructure refers to the framework of certificates, encryption and authentication used to secure digital transactions and verify identities.

Why the other options are incorrect
Option B

PKI has no relation to food security; it deals with cryptographic key management.

Option C

Health care and education infrastructure is unrelated to the cryptographic and certificate framework described by PKI.

Option D

Although digital security supports telecom, PKI specifically concerns digital certificates and encryption, not physical telecom or transport infrastructure.

Q7Current AffairsScience and Technology in NewsPYQ 2017

Which of the following statements is/are correct regarding Smart India Hackathon 2017? 1. It is a centrally sponsored scheme for developing every city of our country into Smart Cities in a decade. 2. It is an initiative to identify new digital technology innovations for solving the many problems faced by our country. 3. It is a programme aimed at making all the financial transactions in our country completely digital in a decade. Select the correct answer using the code given below:

  • A1 and 3 only
  • B2 onlyCorrect
  • C3 only
  • D2 and 3 only

Explanation

Correct. Smart India Hackathon was an innovation challenge to build digital and engineering solutions to real problems, not a Smart Cities scheme or a cashless initiative.

Why the other options are incorrect
Option A

Neither statement 1 nor 3 is correct. Smart India Hackathon is not a Smart Cities scheme or a cashless-economy programme.

Option C

Statement 3 describes a cashless-economy target, not the hackathon. Statement 2 is the correct description.

Option D

Statement 3 is incorrect. The hackathon was about problem-solving innovation, not mandating fully digital financial transactions.

Q8Current AffairsScience and Technology in NewsPYQ 2016

'Project Loon', sometimes seen in the news, is related to:

  • AWaste management technology
  • BWireless communication technologyCorrect
  • CSolar power production technology
  • DWater conservation technology

Explanation

Correct. Project Loon was Google's initiative to provide internet connectivity in remote areas using high-altitude balloons carrying wireless communication equipment.

Why the other options are incorrect
Option A

Project Loon had nothing to do with waste management; it used stratospheric balloons.

Option C

The project was about internet access, not solar power generation.

Option D

Water conservation was not the objective of Project Loon.

Q9Current AffairsScience and Technology in NewsPYQ 2016

With reference to 'Bitcoins', sometimes seen in the news, which of the following statements is/are correct? 1. Bitcoins are tracked by the Central Banks of the countries. 2. Anyone with a Bitcoin address can send and receive Bitcoins from anyone else with a Bitcoin address. 3. Online payments can be sent without either side knowing the identity of the other. Select the correct answer using the code given below.

  • A1 and 2 only
  • B2 and 3 onlyCorrect
  • C3 only
  • D1, 2 and 3

Explanation

Correct. Bitcoin allows peer-to-peer transfers between any addresses, and transactions can be pseudonymous without mandatory real-world identity disclosure.

Why the other options are incorrect
Option A

Statement 1 is incorrect. Bitcoin operates on a decentralised blockchain, not under central bank tracking.

Option C

Statement 2 is also correct. Any Bitcoin address holder can transact with any other address holder.

Option D

Statement 1 is wrong because central banks do not individually track Bitcoin wallet transactions on the protocol level.

Q10Current AffairsScience and Technology in NewsPYQ 2016

'Net metering' is sometimes seen in the news in the context of promoting the:

  • AProduction and use of solar energy by the households/consumersCorrect
  • BUse of piped natural gas in the kitchens of households
  • CInstallation of CNG kits in motor-cars
  • DInstallation of water meters in urban households

Explanation

Correct. Net metering allows rooftop solar consumers to offset their electricity consumption by feeding surplus power back into the grid.

Why the other options are incorrect
Option B

Piped natural gas distribution has its own regulatory framework and is unrelated to net metering.

Option C

CNG kit installation is a transport-sector initiative, not connected to net metering.

Option D

Water meters measure water consumption and have no link to the solar-energy concept of net metering.

Q11Current AffairsScience and Technology in NewsPYQ 2015

In the context of modern scientific research, consider the following statements about 'IceCube', a particle detector located at South Pole, which was recently in the news: 1. It is the world's largest neutrino detector, encompassing a cubic kilometre of ice. 2. It is a powerful telescope to search for dark matter. 3. It is buried deep in the ice. Which of the statements given above is/are correct?

  • A1 only
  • B2 and 3 only
  • C1 and 3 only
  • D1, 2 and 3Correct

Explanation

Correct. IceCube is a cubic-kilometre neutrino observatory buried deep in Antarctic ice that also serves as a powerful instrument for dark matter searches.

Why the other options are incorrect
Option A

Statements 2 and 3 are also correct. IceCube is used for dark matter searches and its sensors are embedded deep in Antarctic ice.

Option B

Statement 1 is also correct. IceCube does encompass a cubic kilometre of ice, making it the world's largest neutrino detector.

Option C

Statement 2 is also correct. IceCube has been used as a telescope to search for dark matter signatures.

Q12Current AffairsScience and Technology in NewsPYQ 2015

The term 'IndARC', sometimes seen in the news, is the name of:

  • AAn indigenously developed radar system inducted into Indian Defence
  • BIndia's satellite to provide services to the countries of Indian Ocean Rim
  • CA scientific establishment set up by India in Antarctic region
  • DIndia's underwater observatory to scientifically study the Arctic regionCorrect

Explanation

Correct. IndARC is India's moored underwater observatory deployed in the Kongsfjorden fjord of Svalbard in the Arctic for climate and oceanographic research.

Why the other options are incorrect
Option A

IndARC is not a defence radar system; it is an oceanographic research installation.

Option B

IndARC is not a satellite. India's regional satellite navigation system is called NavIC.

Option C

IndARC is deployed in the Arctic, not the Antarctic. India's Antarctic stations are Maitri and Bharati.

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Frequently asked questions

How many Science and Technology in News MCQs are available for UPSC Prelims practice?
PrelimsAI currently has 83+ Science and Technology in News MCQs under Current Affairs. This page shows 12 sample questions in full.
How many Science and Technology in News previous year questions are included?
12+ questions in this chapter are tagged as UPSC Prelims PYQs. PYQs are prioritised in the visible sample set when available.
Do these Science and Technology in News questions include explanations?
Yes. The 12 visible sample questions show the correct option and explanation on this page.
Where should I go after practising Science and Technology in News?
Continue with Environment and Climate in News or International Relations and Groupings in News, or return to the Current Affairs subject page for more chapter-wise practice.

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