Science & Technology Current Affairs MCQs
1. Which country has recently reported a new type of magnetism called “altermagnetism”?
[A] Poland
[B] Germany
[C] Sweden
[D] France
[B] Germany
[C] Sweden
[D] France
Correct Answer: C [Sweden]
Notes:
Researchers in Sweden have discovered a new type of magnetism called altermagnetism. It combines the properties of ferromagnets and antiferromagnets in one material. Conventional magnets like iron and nickel rely on aligned spins, while antiferromagnets cancel magnetic forces. Altermagnets have zero net magnetization like antiferromagnets but also show spin splitting like ferromagnets. They can increase the speed of memory devices and improve the efficiency of electronic systems.
Researchers in Sweden have discovered a new type of magnetism called altermagnetism. It combines the properties of ferromagnets and antiferromagnets in one material. Conventional magnets like iron and nickel rely on aligned spins, while antiferromagnets cancel magnetic forces. Altermagnets have zero net magnetization like antiferromagnets but also show spin splitting like ferromagnets. They can increase the speed of memory devices and improve the efficiency of electronic systems.
2. Lyme disease, that was recently seen in news, is caused by which agent?
[A] Fungus
[B] Bacteria
[C] Virus
[D] Protozoa
[B] Bacteria
[C] Virus
[D] Protozoa
Correct Answer: B [Bacteria]
Notes:
Scientists have identified the enzyme lactate dehydrogenase (BbLDH) as essential for the survival and infectivity of Borrelia burgdorferi, the bacterium responsible for Lyme disease. Lyme disease is caused by Bacteria Borrelia burgdorferi and can affect the skin, heart, brain, and joints. It is transmitted exclusively through the bite of infected deer ticks (black-legged ticks) and cannot spread via human contact, pets, air, food, water, or insect vectors such as mosquitoes and fleas. The disease is prevalent in wooded and grassy regions, particularly in North America, Europe, and parts of Asia, with higher incidence during warmer months.
Scientists have identified the enzyme lactate dehydrogenase (BbLDH) as essential for the survival and infectivity of Borrelia burgdorferi, the bacterium responsible for Lyme disease. Lyme disease is caused by Bacteria Borrelia burgdorferi and can affect the skin, heart, brain, and joints. It is transmitted exclusively through the bite of infected deer ticks (black-legged ticks) and cannot spread via human contact, pets, air, food, water, or insect vectors such as mosquitoes and fleas. The disease is prevalent in wooded and grassy regions, particularly in North America, Europe, and parts of Asia, with higher incidence during warmer months.
3. What is “Coeliac Disease” that was recently seen in news?
[A] Viral Disease
[B] Neurological disorder
[C] Inherited autoimmune disorder
[D] Cardiovascular disease
[B] Neurological disorder
[C] Inherited autoimmune disorder
[D] Cardiovascular disease
Correct Answer: C [Inherited autoimmune disorder]
Notes:
Artificial Intelligence (AI) could help speed up the diagnosis of Coeliac Disease, an inherited autoimmune disorder. It is caused by an immune reaction to gluten, a protein found in wheat, barley, and rye. Eating gluten triggers intestinal damage, leading to malabsorption of nutrients. Symptoms include diarrhea, fatigue, weight loss, bloating, and anemia. In children, it can affect growth and development. 1 in 10 people with a first-degree relative having the disease are at risk. 1 in 100 people worldwide are affected. The only treatment is a strict gluten-free diet.
Artificial Intelligence (AI) could help speed up the diagnosis of Coeliac Disease, an inherited autoimmune disorder. It is caused by an immune reaction to gluten, a protein found in wheat, barley, and rye. Eating gluten triggers intestinal damage, leading to malabsorption of nutrients. Symptoms include diarrhea, fatigue, weight loss, bloating, and anemia. In children, it can affect growth and development. 1 in 10 people with a first-degree relative having the disease are at risk. 1 in 100 people worldwide are affected. The only treatment is a strict gluten-free diet.
4. Which company recently launched a private astronaut crew on a historic polar-orbiting mission?
[A] Blue Origin
[B] Firefly Aerospace
[C] SpaceX
[D] AgniKul Cosmos
[B] Firefly Aerospace
[C] SpaceX
[D] AgniKul Cosmos
Correct Answer: C [SpaceX]
Notes:
SpaceX recently launched a private astronaut crew on a historic polar-orbiting mission from NASA’s Kennedy Space Center in Florida aboard a Falcon 9 rocket. A Polar Orbit (PO) is a type of Low Earth Orbit (LEO) between 200 km and 1,000 km in altitude. Unlike equatorial orbits, satellites in a polar orbit travel from pole to pole. Polar orbits allow satellites to cover the entire Earth’s surface as the planet rotates. These orbits are crucial for Earth observation, climate monitoring, and reconnaissance. The Fram2 mission is the first human spaceflight to use this trajectory, marking a milestone in space exploration.
SpaceX recently launched a private astronaut crew on a historic polar-orbiting mission from NASA’s Kennedy Space Center in Florida aboard a Falcon 9 rocket. A Polar Orbit (PO) is a type of Low Earth Orbit (LEO) between 200 km and 1,000 km in altitude. Unlike equatorial orbits, satellites in a polar orbit travel from pole to pole. Polar orbits allow satellites to cover the entire Earth’s surface as the planet rotates. These orbits are crucial for Earth observation, climate monitoring, and reconnaissance. The Fram2 mission is the first human spaceflight to use this trajectory, marking a milestone in space exploration.
5. PSLV Orbital Experimental Module-4 (POEM-4) is a space research platform developed by which space organization?
[A] European Space Agency (ESA)
[B] Indian Space Research Organisation (ISRO)
[C] Japan Aerospace Exploration Agency (JAXA)
[D] China National Space Administration (CNSA)
[B] Indian Space Research Organisation (ISRO)
[C] Japan Aerospace Exploration Agency (JAXA)
[D] China National Space Administration (CNSA)
Correct Answer: B [Indian Space Research Organisation (ISRO)]
Notes:
POEM-4, or PSLV Orbital Experiment Module-4, recently re-entered Earth’s atmosphere and fell into the Indian Ocean, as tracked by ISRO’s IS4OM (System for Safe and Sustainable Space Operations Management). It is a space research platform developed by ISRO (Indian Space Research Organisation) using the spent fourth stage (PS4) of the PSLV (Polar Satellite Launch Vehicle) rocket as an orbiting lab. POEM-4 is part of the SpaDeX (Space Docking Experiment) mission and is the fourth in the POEM series, after POEM-3. It has three times more payload capacity than POEM-3, showing major progress in reusing rocket stages for science.
POEM-4, or PSLV Orbital Experiment Module-4, recently re-entered Earth’s atmosphere and fell into the Indian Ocean, as tracked by ISRO’s IS4OM (System for Safe and Sustainable Space Operations Management). It is a space research platform developed by ISRO (Indian Space Research Organisation) using the spent fourth stage (PS4) of the PSLV (Polar Satellite Launch Vehicle) rocket as an orbiting lab. POEM-4 is part of the SpaDeX (Space Docking Experiment) mission and is the fourth in the POEM series, after POEM-3. It has three times more payload capacity than POEM-3, showing major progress in reusing rocket stages for science.
6. Legionnaires’ disease, that was recently seen in news, is caused by which agent?
[A] Virus
[B] Fungus
[C] Bacteria
[D] Protozoa
[B] Fungus
[C] Bacteria
[D] Protozoa
Correct Answer: C [Bacteria]
Notes:
Health authorities in New South Wales (NSW), Australia, have issued a public alert after a rise in Legionnaires’ disease cases in Sydney, raising fears of contamination in air conditioning systems. Legionnaires’ disease is a serious lung infection caused by Legionella bacteria, usually found in natural water bodies but can also grow in man-made systems like cooling towers. The bacteria can lead to two illnesses: Legionnaires’ disease, a severe pneumonia, and Pontiac fever, a mild flu-like illness. Common symptoms include cough, fever, muscle pain, shortness of breath, and sometimes confusion or diarrhea. It spreads by inhaling contaminated water droplets, not from person to person. There is no vaccine, but antibiotic treatment is effective once diagnosed.
Health authorities in New South Wales (NSW), Australia, have issued a public alert after a rise in Legionnaires’ disease cases in Sydney, raising fears of contamination in air conditioning systems. Legionnaires’ disease is a serious lung infection caused by Legionella bacteria, usually found in natural water bodies but can also grow in man-made systems like cooling towers. The bacteria can lead to two illnesses: Legionnaires’ disease, a severe pneumonia, and Pontiac fever, a mild flu-like illness. Common symptoms include cough, fever, muscle pain, shortness of breath, and sometimes confusion or diarrhea. It spreads by inhaling contaminated water droplets, not from person to person. There is no vaccine, but antibiotic treatment is effective once diagnosed.
7. What kind of disease is “Kyasanur Forest Disease (KFD)” that was recently seen in news?
[A] Waterborne parasitic disease
[B] Viral haemorrhagic disease
[C] Fungal infection
[D] Airborne bacterial disease
[B] Viral haemorrhagic disease
[C] Fungal infection
[D] Airborne bacterial disease
Correct Answer: B [Viral haemorrhagic disease]
Notes:
Kyasanur Forest Disease (KFD), also known as Monkey Fever, is rising in Shivamogga and Chikkamagaluru districts of Karnataka. It is a tick-borne viral haemorrhagic disease first reported in 1957 from Kyasanur Forest, Karnataka. It is caused by the Kyasanur Forest Disease Virus (KFDV), part of the Flavivirus genus and Flaviviridae family, linked to the tick-borne encephalitis (TBE) complex. The virus spreads through hard ticks (Hemaphysalis spinigera) and affects humans, monkeys, and rodents, but not through human-to-human contact.
Kyasanur Forest Disease (KFD), also known as Monkey Fever, is rising in Shivamogga and Chikkamagaluru districts of Karnataka. It is a tick-borne viral haemorrhagic disease first reported in 1957 from Kyasanur Forest, Karnataka. It is caused by the Kyasanur Forest Disease Virus (KFDV), part of the Flavivirus genus and Flaviviridae family, linked to the tick-borne encephalitis (TBE) complex. The virus spreads through hard ticks (Hemaphysalis spinigera) and affects humans, monkeys, and rodents, but not through human-to-human contact.
8. World Chagas Disease Day is observed annually on which day?
[A] April 13
[B] April 14
[C] April 15
[D] April 16
[B] April 14
[C] April 15
[D] April 16
Correct Answer: B [April 14]
Notes:
World Chagas Disease Day is observed every year on April 14 to raise awareness about the devastating impact of Chagas disease. The theme for World Chagas Disease Day 2025 is “Prevent, Control, Care: Everyone’s role in Chagas disease,” emphasizing the need for accessible healthcare and ongoing patient support. Chagas disease is caused by the Trypanosoma cruzi parasite, found in the feces of the triatomine bug. It primarily affects regions in South America, Central America, and Mexico. If untreated, Chagas disease can lead to serious heart and digestive issues. Early treatment targets killing the parasite, while chronic cases focus on managing symptoms.
World Chagas Disease Day is observed every year on April 14 to raise awareness about the devastating impact of Chagas disease. The theme for World Chagas Disease Day 2025 is “Prevent, Control, Care: Everyone’s role in Chagas disease,” emphasizing the need for accessible healthcare and ongoing patient support. Chagas disease is caused by the Trypanosoma cruzi parasite, found in the feces of the triatomine bug. It primarily affects regions in South America, Central America, and Mexico. If untreated, Chagas disease can lead to serious heart and digestive issues. Early treatment targets killing the parasite, while chronic cases focus on managing symptoms.
9. Which government department launched the Project EVolutionS programme?
[A] Ministry of Environment, Forest and Climate Change
[B] Department of Science and Technology (DST)
[C] Ministry of Power
[D] NITI Aayog
[B] Department of Science and Technology (DST)
[C] Ministry of Power
[D] NITI Aayog
Correct Answer: B [Department of Science and Technology (DST)]
Notes:
The Government has provided grants for Electric Vehicle (EV) startups under the Project Electric Vehicle Solutions led by Startups (EVolutionS). EVolutionS was launched by the Department of Science and Technology (DST) under the Ministry of Science and Technology. It is implemented in partnership with the Ministry of Heavy Industry (MHI) and the Automotive Component Manufacturing Association of India (ACMA). The programme supports startups in pilot demonstrations, testing, validation of components, and building industry connections for quick market entry. It covers EV components for two-wheelers, three-wheelers like L5 vehicles, e-rickshaws, e-carts, four-wheelers, e-buses, and charging infrastructure. Startups with indigenous innovation will receive ₹50 lakh, including ₹30 lakh through equity-linked support.
The Government has provided grants for Electric Vehicle (EV) startups under the Project Electric Vehicle Solutions led by Startups (EVolutionS). EVolutionS was launched by the Department of Science and Technology (DST) under the Ministry of Science and Technology. It is implemented in partnership with the Ministry of Heavy Industry (MHI) and the Automotive Component Manufacturing Association of India (ACMA). The programme supports startups in pilot demonstrations, testing, validation of components, and building industry connections for quick market entry. It covers EV components for two-wheelers, three-wheelers like L5 vehicles, e-rickshaws, e-carts, four-wheelers, e-buses, and charging infrastructure. Startups with indigenous innovation will receive ₹50 lakh, including ₹30 lakh through equity-linked support.
10. Which space organization has developed first ever space-based quantum sensor for gravity measurements?
[A] Indian Space Research Organisation (ISRO)
[B] China National Space Administration (CNSA)
[C] Japan Aerospace Exploration Agency (JAXA)
[D] National Aeronautics and Space Administration (NASA)
[B] China National Space Administration (CNSA)
[C] Japan Aerospace Exploration Agency (JAXA)
[D] National Aeronautics and Space Administration (NASA)
Correct Answer: D [National Aeronautics and Space Administration (NASA)]
Notes:
The National Aeronautics and Space Administration (NASA) is developing the first-ever space-based quantum sensor to measure gravity with high precision. Scientists are working on a Quantum Gravity Gradiometer (QGG) to be placed onboard a satellite in low Earth orbit. The QGG can detect the smallest gravitational changes by measuring differences in acceleration as tiny as 10⁻¹⁵ meters per second squared over a distance of 1 meter. In this system, atoms are cooled to near absolute zero, turning them into wave-like states inside a vacuum. Lasers manipulate these atoms, causing a phase shift that reveals the strength of gravitational forces. This technology helps estimate the mass of large structures like the Himalayas and track the movement of water, ice, and rocks from space. The recent development marks a big step in using quantum sensing for environmental monitoring and Earth sciences.
The National Aeronautics and Space Administration (NASA) is developing the first-ever space-based quantum sensor to measure gravity with high precision. Scientists are working on a Quantum Gravity Gradiometer (QGG) to be placed onboard a satellite in low Earth orbit. The QGG can detect the smallest gravitational changes by measuring differences in acceleration as tiny as 10⁻¹⁵ meters per second squared over a distance of 1 meter. In this system, atoms are cooled to near absolute zero, turning them into wave-like states inside a vacuum. Lasers manipulate these atoms, causing a phase shift that reveals the strength of gravitational forces. This technology helps estimate the mass of large structures like the Himalayas and track the movement of water, ice, and rocks from space. The recent development marks a big step in using quantum sensing for environmental monitoring and Earth sciences.
