Q.1 Which of the following is not a renewable source of energy?
Solar energy
Wind energy
Coal
Hydropower
Explanation - Coal is a fossil fuel and a non-renewable source of energy, while solar, wind, and hydropower are renewable.
Correct answer is: Coal
Q.2 What does DNA stand for?
Deoxyribonucleic Acid
Deoxyribose Nucleic Acid
Dicarboxylic Nucleic Acid
Dideoxy Nucleic Acid
Explanation - DNA stands for Deoxyribonucleic Acid, which carries genetic instructions in all living organisms.
Correct answer is: Deoxyribonucleic Acid
Q.3 Who is known as the father of modern computer science?
Charles Babbage
Alan Turing
John von Neumann
Steve Jobs
Explanation - Alan Turing is considered the father of modern computer science for his work on theoretical computing and the Turing machine.
Correct answer is: Alan Turing
Q.4 What is the main gas responsible for the greenhouse effect?
Oxygen
Carbon Dioxide
Nitrogen
Helium
Explanation - Carbon dioxide traps heat in the atmosphere, leading to the greenhouse effect and global warming.
Correct answer is: Carbon Dioxide
Q.5 Which device converts chemical energy into electrical energy?
Battery
Electric Motor
Transformer
Generator
Explanation - A battery stores chemical energy and converts it into electrical energy when connected in a circuit.
Correct answer is: Battery
Q.6 What is the SI unit of force?
Newton
Joule
Pascal
Watt
Explanation - The SI unit of force is Newton (N), defined as the force required to accelerate 1 kg mass by 1 m/s².
Correct answer is: Newton
Q.7 Which part of the cell contains genetic material?
Cytoplasm
Nucleus
Ribosome
Mitochondria
Explanation - The nucleus of a cell contains DNA, which carries the genetic instructions for the organism.
Correct answer is: Nucleus
Q.8 Which of the following is used in making solar panels?
Silicon
Iron
Copper
Aluminium
Explanation - Silicon is a semiconductor material used in photovoltaic cells to convert sunlight into electricity.
Correct answer is: Silicon
Q.9 What does AI stand for in technology?
Artificial Intelligence
Automated Input
Analog Interface
Applied Informatics
Explanation - AI stands for Artificial Intelligence, which enables machines to perform tasks that usually require human intelligence.
Correct answer is: Artificial Intelligence
Q.10 Which particle has a negative electric charge?
Proton
Electron
Neutron
Photon
Explanation - Electrons are subatomic particles with a negative electric charge, while protons are positive and neutrons are neutral.
Correct answer is: Electron
Q.11 Which technology is used in Bitcoin transactions?
Blockchain
Cloud Computing
IoT
5G
Explanation - Blockchain is a decentralized ledger technology used to securely record Bitcoin transactions.
Correct answer is: Blockchain
Q.12 Which organ in the human body produces insulin?
Liver
Pancreas
Kidney
Gallbladder
Explanation - The pancreas secretes insulin, a hormone that regulates blood sugar levels.
Correct answer is: Pancreas
Q.13 What is the boiling point of water at sea level?
90°C
100°C
110°C
120°C
Explanation - At standard atmospheric pressure, water boils at 100°C (212°F).
Correct answer is: 100°C
Q.14 Which vitamin is synthesized by the human body when exposed to sunlight?
Vitamin A
Vitamin C
Vitamin D
Vitamin K
Explanation - Exposure to sunlight enables the skin to synthesize Vitamin D, essential for bone health.
Correct answer is: Vitamin D
Q.15 What is the primary function of white blood cells?
Transport oxygen
Clot blood
Fight infection
Produce hormones
Explanation - White blood cells are part of the immune system and protect the body against infections and foreign invaders.
Correct answer is: Fight infection
Q.16 Which gas is most abundant in Earth's atmosphere?
Oxygen
Carbon Dioxide
Nitrogen
Hydrogen
Explanation - Nitrogen makes up approximately 78% of Earth's atmosphere, making it the most abundant gas.
Correct answer is: Nitrogen
Q.17 Which of these is an example of a superconducting material?
Copper
Yttrium Barium Copper Oxide (YBCO)
Aluminium
Iron
Explanation - YBCO is a high-temperature superconductor that exhibits zero electrical resistance below its critical temperature.
Correct answer is: Yttrium Barium Copper Oxide (YBCO)
Q.18 What does IoT stand for?
Internet of Things
Integration of Technology
Interface of Transmission
Information on Time
Explanation - IoT refers to the network of physical devices connected to the internet, allowing them to collect and exchange data.
Correct answer is: Internet of Things
Q.19 Which planet is known as the Red Planet?
Mars
Venus
Jupiter
Saturn
Explanation - Mars is called the Red Planet because of the iron oxide (rust) on its surface, giving it a reddish appearance.
Correct answer is: Mars
Q.20 Which branch of science deals with the study of fungi?
Botany
Mycology
Zoology
Microbiology
Explanation - Mycology is the branch of biology that focuses on the study of fungi, including mushrooms, molds, and yeasts.
Correct answer is: Mycology
Q.21 Which of these is a non-metal that conducts electricity?
Sulfur
Graphite
Phosphorus
Chlorine
Explanation - Graphite is a form of carbon and can conduct electricity due to delocalized electrons in its structure.
Correct answer is: Graphite
Q.22 Which of the following is used in nuclear reactors as a fuel?
Uranium-235
Plutonium-239
Thorium-232
All of the above
Explanation - Uranium-235, Plutonium-239, and Thorium-232 can all be used as fuel in nuclear reactors.
Correct answer is: All of the above
Q.23 Which instrument is used to measure electric current?
Voltmeter
Ammeter
Galvanometer
Ohmmeter
Explanation - An ammeter is used to measure the flow of electric current in a circuit.
Correct answer is: Ammeter
Q.24 Which of these elements is liquid at room temperature?
Mercury
Bromine
Both Mercury and Bromine
Gallium
Explanation - Mercury (metal) and Bromine (non-metal) are the only elements that are liquid at room temperature.
Correct answer is: Both Mercury and Bromine
Q.25 Which phenomenon explains the bending of light as it passes from one medium to another?
Reflection
Diffraction
Refraction
Dispersion
Explanation - Refraction is the bending of light when it passes from one medium to another due to a change in its speed.
Correct answer is: Refraction
Q.26 What is the primary gas responsible for the greenhouse effect on Earth?
Oxygen
Carbon Dioxide
Nitrogen
Hydrogen
Explanation - Carbon dioxide traps heat in the atmosphere, leading to the greenhouse effect.
Correct answer is: Carbon Dioxide
Q.27 Who is considered the father of the World Wide Web?
Tim Berners-Lee
Bill Gates
Steve Jobs
Mark Zuckerberg
Explanation - Tim Berners-Lee invented the World Wide Web in 1989 while working at CERN.
Correct answer is: Tim Berners-Lee
Q.28 Which planet is known as the Red Planet?
Mars
Venus
Jupiter
Saturn
Explanation - Mars appears red due to iron oxide (rust) on its surface.
Correct answer is: Mars
Q.29 CRISPR technology is used in which field?
Artificial Intelligence
Gene Editing
Renewable Energy
Nanotechnology
Explanation - CRISPR-Cas9 is a revolutionary tool for precise modification of DNA in organisms.
Correct answer is: Gene Editing
Q.30 Which particle is known as the 'God particle'?
Neutron
Higgs Boson
Electron
Proton
Explanation - The Higgs Boson gives mass to other particles, hence the nickname 'God particle'.
Correct answer is: Higgs Boson
Q.31 What is the SI unit of electric current?
Volt
Ampere
Ohm
Watt
Explanation - Electric current is measured in Amperes (A).
Correct answer is: Ampere
Q.32 Which of the following is a renewable source of energy?
Coal
Natural Gas
Solar Energy
Petroleum
Explanation - Solar energy is renewable because it is derived from the sun and is inexhaustible.
Correct answer is: Solar Energy
Q.33 Which is the smallest unit of life?
Atom
Molecule
Cell
Organ
Explanation - The cell is the basic structural and functional unit of life.
Correct answer is: Cell
Q.34 What is the main function of red blood cells?
Fight infections
Carry oxygen
Clot blood
Produce hormones
Explanation - Red blood cells contain hemoglobin which transports oxygen from the lungs to tissues.
Correct answer is: Carry oxygen
Q.35 Which is the fastest supercomputer as of 2024?
Fugaku
Frontier
Summit
Sunway TaihuLight
Explanation - Frontier, developed by the USA, is the fastest supercomputer, performing over 1 exaflop.
Correct answer is: Frontier
Q.36 Which vitamin is produced when skin is exposed to sunlight?
Vitamin A
Vitamin C
Vitamin D
Vitamin K
Explanation - Sunlight triggers the synthesis of Vitamin D in the skin.
Correct answer is: Vitamin D
Q.37 Which technology is behind cryptocurrencies like Bitcoin?
Blockchain
Cloud Computing
AI
IoT
Explanation - Blockchain is a decentralized ledger technology that secures cryptocurrency transactions.
Correct answer is: Blockchain
Q.38 Which planet has the strongest magnetic field in the solar system?
Earth
Saturn
Jupiter
Neptune
Explanation - Jupiter's strong magnetic field is 14 times stronger than Earth's.
Correct answer is: Jupiter
Q.39 Which is the most abundant element in the Earth's crust?
Iron
Oxygen
Silicon
Aluminium
Explanation - Oxygen makes up about 46% of the Earth's crust by weight.
Correct answer is: Oxygen
Q.40 What does IoT stand for in technology?
Internet of Things
Interface of Technology
Integration of Tools
Information on Technology
Explanation - IoT refers to the network of physical objects connected via the internet to exchange data.
Correct answer is: Internet of Things
Q.41 Which organ in the human body regulates blood sugar?
Liver
Pancreas
Kidney
Spleen
Explanation - The pancreas secretes insulin, which regulates blood sugar levels.
Correct answer is: Pancreas
Q.42 What is the main component of natural gas?
Ethane
Methane
Propane
Butane
Explanation - Methane is the primary component of natural gas, usually over 80%.
Correct answer is: Methane
Q.43 Which technology is used for contactless payment?
NFC
RFID
QR Code
All of the above
Explanation - Contactless payments can use NFC, RFID, or QR codes for secure transactions.
Correct answer is: All of the above
Q.44 Which branch of science deals with the study of viruses?
Bacteriology
Virology
Microbiology
Immunology
Explanation - Virology is the study of viruses and virus-like agents.
Correct answer is: Virology
Q.45 What is the boiling point of water at sea level?
90°C
95°C
100°C
105°C
Explanation - At standard atmospheric pressure (1 atm), water boils at 100°C.
Correct answer is: 100°C
Q.46 Which scientist formulated the laws of motion?
Albert Einstein
Isaac Newton
Galileo Galilei
Nikola Tesla
Explanation - Isaac Newton formulated the three laws of motion which are fundamental to classical mechanics.
Correct answer is: Isaac Newton
Q.47 Which is the first artificial satellite launched into space?
Apollo 11
Sputnik 1
Voyager 1
Hubble Telescope
Explanation - Sputnik 1, launched by the Soviet Union in 1957, was the first artificial satellite.
Correct answer is: Sputnik 1
Q.48 What does DNA stand for?
Deoxyribonucleic Acid
Ribonucleic Acid
Deoxyribonitric Acid
None of the above
Explanation - DNA stands for Deoxyribonucleic Acid, the molecule that carries genetic information.
Correct answer is: Deoxyribonucleic Acid
Q.49 Which element is essential for the production of thyroid hormones?
Iron
Iodine
Calcium
Magnesium
Explanation - Iodine is necessary for the synthesis of thyroid hormones, which regulate metabolism.
Correct answer is: Iodine
Q.50 Which technology is used in electric vehicles to store energy?
Solar Panels
Lithium-ion Batteries
Fuel Cells
Hydraulic Storage
Explanation - Lithium-ion batteries are commonly used in electric vehicles due to their high energy density.
Correct answer is: Lithium-ion Batteries