Science and Technology Mixed Practice — MCQs with Answers (Set 9)

The six BioE3 sectors include precision biotherapeutics, carbon capture and utilisation, and marine and space research. The others are bio-based chemicals, smart proteins and climate-resilient agriculture. Nuclear power is not a BioE3 sector.

Belle II began collecting data in early 2018, expected to gather about 50 times more data than its predecessor.

Belle II is a particle physics experiment at Japan’s SuperKEKB accelerator, studying the properties of B mesons.

The Belle II website calls SuperKEKB an e+e- collider. KEK describes SuperKEKB as an upgrade of the KEKB electron-positron collider. CERN Courier says SuperKEKB delivers asymmetric electron-positron collisions to Belle II. CERN Courier links proton-proton collisions to the LHC’s record instead.

The Belle II website says the goal of 50 ab-1 is 50 times more data than the Belle experiment acquired. The Belle II Physics Book abstract also says Belle II is anticipated to collect 50/ab of collision data over its lifetime.

PIB reported on 19 November 2025 that BIRSA 101 is India’s first indigenous CRISPR-based gene therapy for sickle cell disease. India Today also reported on 30 April 2026 that BIRSA 101 targets sickle cell disease. It says the therapy was developed at CSIR-IGIB.

The answer is bitcoin. CISA reported a demand of about 0.18 bitcoin, roughly $300. India’s CERT-In described ransomware as malware that demands payment in bitcoins.

The answer is Ukraine. CISA said NotPetya was delivered through M.E.Doc, a Ukrainian tax accounting software. It then spread to organisations in many countries. The UK government said the attack hit Ukraine hardest, according to MIT Technology Review.

The answer is EternalBlue. CISA said the WannaCry dropper spread through the MS17-010 EternalBlue SMBv1 exploit. Microsoft had released the fix on 14 March 2017.

The answer is a Windows vulnerability exploit. It used a flaw in SMBv1, which Microsoft fixed in bulletin MS17-010. Microsoft’s president said the exploits were drawn from those stolen from the US National Security Agency. CISA also named EternalBlue as the exploit WannaCry used.

The answer is cyber attacks. WannaCry and NotPetya were ransomware attacks in 2017. EternalBlue is the Windows exploit used to spread them.

India’s National Policy on Biofuels approves damaged wheat grains as a raw material, while excluding groundnut seeds and horse gram.

The answer is Software Edition and Hardware Edition. PIB describes the 2018 contest as having both. The Software edition ran on 30 and 31 March 2018, and the Hardware edition was inaugurated on 18 June 2018.

The answer is AICTE. PIB calls Smart India Hackathon a flagship programme of the Innovation Cell of the Ministry of Education and AICTE. In 2017 PIB named AICTE as the main anchor for the ministry’s campaign.

The answer is government ministries and departments. PIB says the platform lets students solve the problems of ministries and departments of the government, industries and other organisations. So the first option fails because of the word only.

The answer is 2017. The first Grand Finale ran for 36 hours, from 8 a.m. on 1 April to 8 p.m. on 2 April 2017. The campaign itself was launched on 9 November 2016.

The answer is 2 only. PIB calls Smart India Hackathon a unique initiative to identify new and disruptive digital technology innovations. It is a student competition, not a scheme to develop cities. The Smart Cities Mission is a different mission launched in 2015.

The correct answer is an electrochemical reaction that makes electricity directly, without combustion. The train uses a PEM fuel cell. Hydrogen and oxygen react across a polymer membrane. Nothing is burned, and no steam turbine is involved.

Ministries use IRS-derived data for land-use planning, water-resource management, and urban expansion monitoring across India.

IRS data also supports flood mapping, forest-fire tracking, and disaster response planning across India, beyond its agricultural and mineral-exploration uses.

Telecommunications relies on geostationary satellites that stay fixed relative to a point on Earth, while IRS satellites fly in polar orbits built for imaging, not signal relay.

IRS satellites typically fly in sun-synchronous polar orbits, built for consistent imaging rather than for relaying communication signals.

The correct answer is 1 and 2 only — China and France. The NPT recognises exactly five Nuclear Weapons States, those that tested a weapon before 1 January 1967: the US, Russia, the UK, France, and China. India, Israel, and Pakistan built weapons after that cutoff, so none of them qualify as NPT-recognised nuclear states.

A hydrogen PEM fuel cell can reach roughly 150x the energy density of a Li-Po battery. The 25-day figure is a real but unrelated fact about solar-battery hybrid endurance records, used here as a plausible distractor.

The correct answer is a nuclear micro-reactor. None of the sources lists a nuclear UAV. Battery power is named by the Mississippi State page and the ASEE paper. Internal combustion is shown by the Shadow 200 rotary engine. A hydrogen fuel cell is the subject of the ASEE paper. Memory hook: battery, fuel, solar, hydrogen.