Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizFill in the Blank – GK Questions
Free practice for SSC, UPSC, Banking & Railway exams. No login required.
The Higgs boson, discovered at CERN in 2012, is associated with the mechanism that gives particles ________.
- Charge
- Spin
- Mass
- Color
Answer: Mass
Higgs field interacts with particles via Higgs mechanism, endowing them with mass. Discovery confirmed Standard Model prediction. Nobel Prize in Physics 2013. [[NCERT Physics Class 12]]
Density Functional Theory (DFT) is a quantum mechanical method used to investigate the ________ structure of many-body systems.
- Nuclear
- Electronic
- Molecular
- Atomic
Answer: Electronic
DFT calculates electronic structure (energy, orbitals) of atoms, molecules, solids using electron density instead of wavefunctions. Widely used in materials design, catalysis, drug discovery. [[NCERT Chemistry Class 12]]
Edge computing processes data near the ________ rather than in a centralized cloud.
- Server
- Source
- Database
- User
Answer: Source
Edge computing reduces latency and bandwidth by processing data at/near IoT devices (sensors, phones). Critical for real-time applications: autonomous vehicles, industrial automation. [[MeitY Reports]]
Incineration of municipal solid waste primarily produces energy in the form of ________.
- Biogas
- Electricity
- Hydrogen
- Ethanol
Answer: Electricity
Waste incineration burns MSW to generate steam, driving turbines for electricity. Reduces landfill volume but requires emission controls. Part of integrated waste management. [[MoEFCC Guidelines]]
DNA methylation typically occurs at ________ dinucleotide sites and generally represses gene expression.
- AT
- GC
- CG
- TA
Answer: CG
CpG islands (CG dinucleotides) are common methylation sites. Methyl groups added to cytosine by DNMT enzymes silence genes. Epigenetic changes influence development, disease, and inheritance. [[NCERT Biology Class 12]]
Graphene is a single layer of carbon atoms arranged in a ________ lattice.
- Cubic
- Hexagonal
- Tetragonal
- Orthorhombic
Answer: Hexagonal
Graphene's 2D honeycomb lattice gives exceptional strength, conductivity, and flexibility. Applications: flexible electronics, composites, sensors. Nobel Prize in Physics 2010. [[NCERT Chemistry Class 11, DST Reports]]
Biodegradable polymers like PLA (Polylactic Acid) are derived from renewable resources such as ________.
- Petroleum
- Corn starch
- Coal
- Natural gas
Answer: Corn starch
PLA is synthesized from lactic acid produced by fermenting corn starch/sugarcane. Degrades to CO₂ and water under composting conditions. Sustainable alternative to conventional plastics. [[NCERT Chemistry Class 12]]
Geostationary satellites orbit at approximately ________ km above Earth's equator.
- 360
- 3600
- 36000
- 360000
Answer: 36000
Geostationary orbit (GEO) at ~35,786 km altitude matches Earth's rotation period (24h), so satellite appears fixed. Used for TV broadcasting, weather monitoring, communication. [[ISRO Reports, NCERT Physics Class 11]]
Reverse osmosis (RO) membranes remove dissolved salts by applying pressure greater than the ________ pressure.
- Atmospheric
- Osmotic
- Vapor
- Hydrostatic
Answer: Osmotic
RO forces water through semi-permeable membrane against osmotic gradient, rejecting ions/molecules. Widely used for desalination and water purification. [[CPCB Guidelines, NCERT Chemistry Class 12]]
mRNA vaccines work by delivering genetic instructions for cells to produce a viral ________ protein.
- Envelope
- Spike
- Capsid
- Matrix
Answer: Spike
mRNA vaccines (e.g., COVID-19) encode the spike protein of SARS-CoV-2. Cells produce it, triggering immune response without live virus. Platform enables rapid vaccine development. [[ICMR, MoHFW Guidelines]]
MRI stands for Magnetic ________ Imaging.
- Resonance
- Radiation
- Reflection
- Refraction
Answer: Resonance
MRI uses strong magnetic fields and radio waves to align hydrogen nuclei; resonance signals create detailed soft-tissue images. No ionizing radiation, unlike CT/X-rays. [[NCERT Physics Class 12]]
The Ostwald process is used for the industrial production of ________ acid.
- Sulfuric
- Nitric
- Phosphoric
- Hydrochloric
Answer: Nitric
Ostwald process: catalytic oxidation of NH₃ to NO, then to NO₂, absorbed in water to form HNO₃. Critical for fertilizers, explosives, and chemical synthesis. [[NCERT Chemistry Class 12]]
Ayushman Bharat Digital Mission (ABDM) aims to create a unified ________ infrastructure for healthcare.
- Insurance
- Digital
- Hospital
- Pharmacy
Answer: Digital
ABDM (2021) enables digital health IDs, electronic records, and interoperable systems for seamless healthcare access. Part of India's digital public infrastructure strategy. [[MoHFW, NHA Reports]]
CAMPA stands for Compensatory Afforestation Fund Management and ________ Authority.
- Planning
- Policy
- Protection
- Preservation
Answer: Planning
CAMPA (2016) manages funds collected for diverting forest land for non-forest use. Ensures afforestation, ecosystem restoration, and tribal welfare. Critical for environmental governance. [[MoEFCC Reports, NCERT Geography Class 11]]
The One Health approach recognizes the interconnection between human health, animal health, and the ________.
- Climate
- Environment
- Economy
- Technology
Answer: Environment
One Health is a collaborative, multisectoral approach acknowledging that human, animal, and environmental health are linked. Critical for zoonotic disease prevention (e.g., COVID-19, Nipah). [[WHO, MoHFW Guidelines]]
India's LiFE Mission stands for Lifestyle for ________.
- Environment
- Energy
- Ecology
- Earth
Answer: Environment
LiFE (Lifestyle for Environment) was launched by PM Modi at COP26 (2021) to promote mindful consumption and sustainable living. It emphasizes individual actions for collective climate impact. [[MoEFCC, NITI Aayog Reports]]
The SI unit of pressure is ________.
- Newton
- Pascal
- Joule
- Watt
Answer: Pascal
Pascal (Pa) = N/m². Atmospheric pressure ≈ 101,325 Pa = 1 atm. Barometer measures pressure; manometer measures gas pressure. Essential for fluid mechanics. [[NCERT Physics Class 11]]
The Chipko Movement, aimed at forest conservation, originated in the state of ________.
- Uttarakhand
- Himachal Pradesh
- Kerala
- Karnataka
Answer: Uttarakhand
Chipko (1970s, Uttarakhand): villagers hugged trees to prevent logging. Pioneered eco-feminism and community-based conservation. Landmark environmental movement in India. [[MoEFCC, NCERT Geography Class 11]]
The primary structure of a protein refers to the sequence of ________.
- Nucleotides
- Amino acids
- Fatty acids
- Monosaccharides
Answer: Amino acids
Primary structure: linear sequence of amino acids linked by peptide bonds. Determines higher-order folding and function. Central to biochemistry. [[NCERT Chemistry Class 12]]
The voice box in humans is called the ________.
- Pharynx
- Larynx
- Trachea
- Bronchus
Answer: Larynx
Larynx contains vocal cords; vibration produces sound. Epiglottis prevents food entry during swallowing. Key anatomy for physiology questions. [[NCERT Biology Class 11]]