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Generate QuizTechnology – MCQ – GK Questions
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Which CBDC feature enables automatic tax withholding on transactions?
- Smart Contracts
- Programmable Money
- Both A and B
- Neither
Answer: Both A and B
Programmable CBDC with smart contracts can automate tax collection at point of transaction, reducing compliance burden and evasion. Requires careful design to balance efficiency with privacy and user control.
Which Indian law requires Virtual Asset Service Providers to register with FIU-IND?
- IT Act 2000
- PMLA
- DPDP Act
- SEBI Act
Answer: PMLA
Prevention of Money Laundering Act (PMLA) amended to include VASPs as reporting entities. Requires KYC, transaction monitoring, and suspicious activity reporting. Critical for crypto compliance framework.
Which CBDC design enables transactions without revealing user identity to merchants?
- Account-based
- Token-based with Privacy
- Hybrid
- All of these
Answer: Token-based with Privacy
Token-based CBDC with privacy features (blind signatures, ZK-proofs) enables pseudonymous transactions while maintaining central bank oversight. Balances privacy with AML/CFT compliance requirements.
Which principle ensures carbon credits represent emission reductions that wouldn't have occurred otherwise?
- Additionality
- Permanence
- Leakage Prevention
- All of these
Answer: Additionality
Additionality requires proving project emissions reductions are beyond business-as-usual scenario. Critical for carbon market integrity: prevents crediting actions that would happen anyway. Verified through baseline methodologies.
Which data center cooling technology uses outside air to reduce mechanical cooling needs?
- Chilled Water
- Free Air Cooling
- Liquid Immersion
- Evaporative Cooling
Answer: Free Air Cooling
Free air cooling uses filtered outside air when ambient conditions permit, reducing chiller usage by 30-70%. Implemented in Google, Facebook data centers. Critical for PUE improvement and operational cost reduction.
Which renewable energy technology has seen fastest cost decline globally in past decade?
- Solar PV
- Wind Power
- Hydropower
- Geothermal
Answer: Solar PV
Solar PV costs declined ~90% (2010-2020) due to manufacturing scale, technology improvements, and supply chain optimization. Now cheapest electricity source in many regions. India targets 500 GW renewable capacity by 2030.
Which technology captures CO2 directly from ambient air for storage or utilization?
- Point Source CCS
- Direct Air Capture
- Bioenergy CCS
- Enhanced Weathering
Answer: Direct Air Capture
DAC uses chemical sorbents to extract CO2 from ambient air, enabling carbon removal independent of emission sources. Energy-intensive but critical for net-zero pathways. India exploring DAC under climate strategy.
Which technology enables high-throughput satellites to serve multiple beams simultaneously?
- Frequency Reuse
- Spot Beams
- Adaptive Coding
- All of these
Answer: All of these
HTS combines: spot beams for focused coverage, frequency reuse for capacity multiplication, adaptive coding for link optimization. Enables 100+ Gbps throughput for broadband, backhaul, and enterprise services.
Which lunar resource is valuable for nuclear fusion research?
- Water Ice
- Helium-3
- Rare Earth Elements
- Titanium
Answer: Helium-3
Helium-3, deposited by solar wind on lunar surface, is a potential fuel for aneutronic fusion reactors producing minimal radioactive waste. Extraction remains technologically challenging but scientifically valuable.
Which propulsion technology enables efficient deep space missions with continuous low-thrust?
- Chemical Rockets
- Ion Propulsion
- Nuclear Thermal
- Solar Sails
Answer: Ion Propulsion
Ion thrusters use electric fields to accelerate ions, providing high specific impulse (fuel efficiency) with low thrust. Ideal for deep space missions: Dawn, BepiColombo. ISRO developing electric propulsion for future missions.
Which frequency band offers best building penetration for mobile satellite services?
- Ka-band
- Ku-band
- L-band
- V-band
Answer: L-band
L-band (1-2 GHz) has longer wavelength enabling better penetration through buildings, foliage, and weather. Used for mobile satellite services, GPS, and emergency communications. Trade-off: lower bandwidth vs higher frequencies.
Which ISRO mission will study Venus's atmosphere and surface?
- Shukrayaan-1
- Mangalyaan-2
- Aditya-L2
- Gaganyaan-2
Answer: Shukrayaan-1
Shukrayaan-1 is India's planned Venus orbiter mission (target launch ~2028) to study the planet's thick atmosphere, surface processes, and solar wind interactions. Will carry Indian and international payloads for comprehensive planetary science.
Which standard ensures carbon offset projects deliver real, additional, and permanent emission reductions?
- Gold Standard
- Verra VCS
- Both A and B
- Neither
Answer: Both A and B
Gold Standard and Verra's Verified Carbon Standard certify offset projects with rigorous methodologies: additionality, permanence, leakage prevention. Critical for carbon market integrity and climate finance.
Which resource on the Moon is valuable for producing rocket propellant?
- Helium-3
- Water Ice
- Rare Earth Elements
- All of these
Answer: Water Ice
Lunar water ice (south pole craters) can be electrolyzed into hydrogen/oxygen for rocket fuel. Enables in-situ resource utilization for sustainable lunar exploration and deep space missions.
Which Indian initiative enables private companies to provide satellite-based services?
- IN-SPACe
- NSIL
- Both A and B
- Neither
Answer: Both A and B
IN-SPACe authorizes private space activities; NSIL commercializes ISRO technologies via industry partnerships. Together they enable India's growing commercial space ecosystem.
Which quantum application enables simulation of complex molecular interactions for drug discovery?
- Quantum Computing
- Quantum Sensing
- Quantum Communication
- Quantum Cryptography
Answer: Quantum Computing
Quantum computers simulate quantum systems (molecules, materials) exponentially faster than classical computers for specific problems. Critical for drug discovery, materials science, and chemistry research.
Which technique enables AI models to be updated without retraining from scratch?
- Transfer Learning
- Federated Learning
- Continual Learning
- All of these
Answer: All of these
Efficient AI updates: Transfer Learning adapts pre-trained models; Federated Learning trains on-device; Continual Learning incorporates new data incrementally. Critical for adaptive, resource-efficient AI systems.
Which international body sets standards for anti-money laundering in virtual asset services?
- FATF
- IMF
- World Bank
- BIS
Answer: FATF
Financial Action Task Force (FATF) sets global AML/CFT standards including Travel Rule for VASPs. Countries implement through domestic laws. Critical for cross-border crypto compliance.
Which CBDC benefit enables programmable welfare payments with usage restrictions?
- Faster Settlement
- Lower Costs
- Conditional Transfers
- All of these
Answer: Conditional Transfers
Programmable CBDC enables subsidies usable only for specific goods/services (food, education), preventing misuse while ensuring benefits reach intended purposes. Critical for social welfare efficiency.
Which cryptographic primitive enables confidential transactions in privacy-focused cryptocurrencies?
- Ring Signatures
- Bulletproofs
- Confidential Transactions
- All of these
Answer: All of these
Privacy techniques: Ring signatures obscure sender; Bulletproofs provide efficient range proofs; Confidential Transactions hide amounts using Pedersen commitments. Balance privacy with regulatory compliance.