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Science Current Affairs Quiz - April 2018

Home > Current Affairs > Science Current Affairs Quiz - April 2018

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1. 4 rare kingfisher species are spotted in Krishna Wildlife Sanctuary in _______________, identified as White-throated kingfisher (Halcyon smyrnensis), Pied kingfisher (Ceryle rudis), Black-capped kingfisher (Halcyon pileate) and Common kingfisher.

Andhra Pradesh
Telangana
Kerala
Karnataka
None of These


2. All India Institute of Medical Sciences _______________ (AIIMS) has set up India’s first Virtual Bronchoscopy Navigation (VBN), an advanced facility for diagnosis and treatment of small tumour-like spots in lungs.

Rishikesh
Bilaspur
Delhi
Patna
None of These


3. As per a recent study, 26 % of _____________________ on Earth comes from weathering of planet’s bedrock, as against current belief that all of ___________ on Earth available to plants comes from atmosphere. Ecosystems need it and other nutrients to absorb carbon dioxide (CO2) pollution and there is limited amount of it available from plants and soils.

So2
Oxygen
CO2
Nitrogen
None of These


4. ___________ scientist of Indian origin Veena Sahajwalla launched world’s first microfactory that can transform components from electronic waste items into valuable materials for re-use. It uses green manufacturing technologies to turn many types of consumer waste such as glass, plastic and timber into commercial materials and products. Transformed materials from micro-factory includes metal alloys and range of micromaterials.

British
American
Russian
Spanish
Australian


5. Bhabha Atomic Reseach Centre (BARC) developed _____________, a next-generation cheaper and lighter bulletproof jacket, named after Dr. Homi J. Bhabha, father of Indian nuclear programme.

  1. It is made of boron carbide and carbon nanotube polymer composite and weighs just 6.6 kg, reducing weight by 50%.
  2. It will cost Rs 60,000-70,000, compared to imported bulletproof jackets costing around Rs 1.5 lakh.
Bhabha Suraksha
Sahaj Kavach
Bhabha Kavach
Sulabh Kavach
None of These


6. Chinese Researchers developed a new 3D conic device that can greatly increase solar-thermal conversion efficiency, Named ________________  and inspired by transpiration process of trees. It is fixed with a special 1D water path which can reduce energy loss in conduction.

  1. As 10 to 50 % of sunlight is diffusive, the cone structure of the device could collect more sunlight throughout the day, compared with a flat device. It can enhance solar-thermal conversion rate to 85 percent (up from 40% Currently).
  2. It will also open new possibilities to utilise solar energy in several sectors, which was discontinued due to its low conversion rate caused by losses in radiation, convection and conduction.
Artificial Transpiration
Artificial Transformation
Artificial Transportation
Acute Transpiration
None of These


7. Food and Drug Administration (FDA) of ____________ approved an artificial-intelligence device called IDx-DR, that can detect diabetic eye problems, allowing doctors to diagnose the condition without need of any data or images. It uses artificial intelligence algorithm to analyse images of eye, taken with a retinal camera Topcon NW400.

Russia
USA
UK
Spain
None of These


8. ISRO’s Polar Satellite Launch Vehicle PSLV-C41 successfully launched 1425 kg _____________________ Navigation Satellite. IRNSS-1I is latest member of Navigation with Indian Constellation (NavIC) system (also known as Indian Regional Navigation Satellite System (IRNSS)).

  1. NAVIC is an independent regional navigation satellite system designed to provide position information in Indian region and 1,500 km around Indian mainland.
  2. The constellation consists 7 Satellites, planned to be expanded to 11.
IRNSS-1I
IRNSS-1L
IRNSS-1M
IRNSS-1N
None of These


9. IT Firm ________________ partnered with breach avoidance platform provider Balbix to launch first AI (Artificial intelligence)-powered continuous threat assessment and prioritised actionable risk intelligence platform.

Tech Mahindra
Wipro
HCL
TCS
None of These


10. Indian Space Research Organisation (ISRO) lost contact with recently launched India’s communication _____________ satellite. The second orbit raising operation of this satellite was successfully carried out on March 31, 2018, but during third and final firing scheduled on April 1, 2018, communication with satellite was lost. Efforts by ISRO are on to re-establish communication with the satellite.

GSAT-2A
GSAT-4A
GSAT-5A
GSAT-6A
None of These


11. Indian Space Research Organisation (ISRO) will launch several satellites in coming month.

  1. GSAT 7A - It will enable for Indian Air Force (IAF) to interlink different ground radar stations, airbases and Airborne Warning and Control System (AWACS) aircraft. It will be similar to Gsat-7 or Rukmini, launched in September 2013 for Indian Navy.
  2. ________________ - It is an advanced remote sensing satellite and will boost India’s surveillance capabilities.
RISAT - 5A
RISAT - 4A
RISAT - 1A
RISAT - 2A
None of These


12. Indian Space and Research Organisation (ISRO) postponed launch of India’s second lunar mission ‘Chandrayaan-2’ from April 2018 to October-November 2018 -

  1. Chandrayaan 2 is India’s second mission to Moon, developed indigenously by ISRO with Orbiter, Lander and Rover configuration.
  2. It is ISRO’s first inter-planetary mission to land rover on any celestial body, to be launched on board Geosynchronous Satellite Launch Vehicle Mk III (______________). Orbiter weighs around 3,290 kg and it will orbit around moon and perform objectives of remote sensing moon.
GSLV-F20
GSLV-F10
GSLV-F30
GSLV-F40
None of These


13. Indian scientists formulated world’s first ayurvedic drug to cure dengue, likely to be available by 2019. Double-Blind Placebo-Controlled Clinical Trial (a medical study involving human participants) of this drug is going on in medical colleges in _________________.

Odisha
Telangana
Andhra Pradesh
Kerala
Karnataka


14. NASA successfully conducted ASPIRE (________________________________) to test supersonic parachute that will help its space exploration missions to land on Mars.

  1. NASA’s Mars rover mission is set to launch in 2020 to deploy six-wheeled vehicle on martian surface to study rocks on site and cache samples for eventual return to Earth. It will rely on special parachute to slow spacecraft down when it is entering Martian atmosphere at over speed of 12,000 mph (5.4 kilometers per second).
Advanced Supersonic Parachute Inflation Research Experiment
Advanced Supersonic Para Inflation Research Experiment
Advanced Supersonic Parachute Indigenous Research Experiment
Advanced Safe Parachute Inflation Research Experiment
None of These


15. NASA will launch humanity’s first mission Parker Solar Probe (PSP) to ___________ on July 31, 2018. After launch, probe will orbit directly through solar atmosphere (the corona), closer to surface than any human-made object has ever gone.

  1. It has been designed and built by Johns Hopkins University Applied Physics Laboratory. It is named after solar astrophysicist Eugene Parker, first spacecraft of NASA to be named after living person.
  2. Probe will be fitted with thermal protection system (TPS) or heat shield made of reinforced carbon-carbon composite that will allow it to survive temperatures in ________________’s corona.
Venus
Neptune
Mars
Sun
None of These


16. ___________________'s Hubble Space Telescope discovered most distant star ever seen named 'Icarus, officially named MACS J1149+2223 Lensed Star 1. It took nine billion years for Icarus' light to reach Earth, captured through a phenomenon called 'Gravitational Lensing' that enormously intensifies star's feeble glow.

ISRO
ESA
NASA
Roscomos
None of These


17. National Aeronautics and Space Administration (NASA) announced its plan of creating a manned supersonic aircraft with no ear-shattering sonic boom. NASA will grant $247.5 million contract to American aerospace Firm Lockheed Martin, to build the new plane called ______________.

S-plane
X-plane
Super-plane
Stratolaunch
None of These


18. National Aeronautics and Space Administration (NASA) launched CHESS 4 (__________________) from Kwajalein Atoll in Marshall Islands, onboard a NASA Black Brant IX sounding rocket to study interstellar medium (matter between stars).

  1. Space between distant stars contains drifts of vast clouds of neutral molecules and charged plasma particles called interstellar medium, which may evolve into new stars and even planets with time.
  2. CHESS mission will focus on these floating interstellar reservoirs or translucent clouds of gas, which provide fundamental building blocks for stars and planets.
  3. CHESS 4 will study interaction of stellar wind with surrounding interstellar medium to study excitation of atoms and molecules in interface region. It will enable researchers to study catalysts of galactic chemistry and raw materials for future generations of stars and planets.
Colorado High-resolution Echelle Stellar Stretograph
Colorado High-resolution Echelle Stellar Spectrograph
Combined High-resolution Echelle Stellar Spectrograph
Colorado High-resolution Echo Stellar Spectrograph
None of These


19. National Aeronautics and Space Administration (NASA) launched TESS (____________________), a new planet-hunting spacecraft onboard of SpaceX’s Falcon 9 rocket. TESS is designed to find potential planets orbiting stars close to Earth. It will identify such planets by spotting decreased brightness of stars after planet passes in front of it.

Transimitting Exoplanet Survey Satellite
Transfusion Exoplanet Survey Satellite
Transiting Ecoplanet Survey Satellite
Transiting Exoplanet Survey Satellite
None of These


20. RH-300 MKII sounding rocket developed by IRSO’s Vikram Sarabhai Space Centre (VSSC) has been launched from Thumba Equatorial Rocket Launching Station in Thiruvananthapuram (________________), under Sounding Rocket Experiment (SOUREX) programme for atmospheric studies.

  1. Objective is to measure neutral wind in dynamo region (80-120 km) of equatorial ionosphere using indigenously developed Electron Density and Neutral Wind Probe (ENWi).
  2. It will also perform cross-validation using an independent Tri Methyl Aluminium (TMA) release technique.
Kerala
Karnataka
Andhra Pradesh
Telangana
None of These


21. Researchers discovered new grass-like plant species named Fimbristylis agasthyamalaensis in Ponmudi hills within Agasthyamala Biosphere Reserve in Western Ghats biodiversity hotspot (Spread across _____________ and Tamilnadu). New species of plant belongs to Cyperaceae family.

Kerala
Karnataka
Andhra Pradesh
Telangana
None of These


22. Researchers from Britain's University of Portsmouth and _______________ Department of Energy's National Renewable Energy Laboratory (NREL) developed a plastic-eating enzyme. Called Ideonella sakaiensis 201-F6, this enzyme is able to eat polyethylene terephthalate (PET), which was patented as plastic in 1940s. It can be used to fight one of world’s biggest pollution problems, called Plastic.

  1. Enzyme can also degrade polyethylene furandicarboxylate (PEF), a bio-based substitute for PET plastics that is being called as a replacement for glass beer bottles.
  2. Though PEF plastics are bio-based, they are not biodegradable and end up as a waste.
UK
US
Russia
Greece
None of These


23. Researchers from Indian Institute of Technology (IIT) __________________ identified 2 small potent molecules Pep-I and Pep-II, for their inhibitory activity to treat Chikungunya disease. Small amount of concerned solution was able to achieve almost 99% reduction in virus. Currently, there are no drugs to treat chikungunya or any vaccine to prevent it.

Gandhinagar
Bombay
Delhi
Roorkee
None of These


24. Researchers from Surat’s Veer Narmad South ____________ University discovered world’s smallest land fern in Ahwa forests of the Western Ghats in Dang district. New Malvi’s adder’s-tongue fern Ophioglossum malviae is just one centimetre in size.

Maharashtra
Odisha
Weest Bengal
Bihar
Gujarat


25. Scientists at Northwestern University (___________________) led by India's Vinod Kumar Sangwan (India), developed “Memtransistor”, an electronic device that can mimic human brain, combining functions of a memristor and a transistor.

UK
Russia
USA
Spain
None of These


26. Scientists completed first test drive of a DNA ‘unicycle’ – a tiny machine made of genetic material powered by chemical energy that could perform directed movements, developed by Researchers from University of Bonn (____________________) and University of Michigan (USA). The tiny vehicle is 30 nanometers in size and Fuel is given by protein T7 RNA polymerase.

Germany
Spain
France
Botswana
None of These


27. Scientists discovered a giant mosquito with a wingspan of 11.15 centimetres in ______________’s Sichuan province, belonging to world’s largest mosquito species Holorusia mikado. This species was first found in Japan and normally has wing span of 8 centimetres.

Japan
China
Vietnam
Cambodia
None of These


28. Scientists from Pennsylvania State University (__________________) discovered signs of life in a massive cave in Italy, located about 1300 feet below ground. It may help detect life on other planets like Mars. Identification was made by researchers while exploring Frasassi Caves in central Italy. Scientists found variations in isotopic content of atoms in mineral gypsum, a weathering product of cave's formation.

  1. Study stated that not all gypsum is formed by microbes, but gypsum formed by microbes will have a different ratio of isotopes in atoms.• This isotopic variation indicates that life played an active role in producing gypsum.
UK
Russia
USA
Spain
None of These


29. Scientists identified a new species of frog called Fejervarya goemchi,in highland plateaus of Western Ghats parts of ___________________. It was identified using combination of morphology, geographic distribution range and molecular methods to distinguish from other Fejervarya species found in South and South-East Asia.

Andhra Pradesh
Telangana
Karnataka
Kerala
Goa


30. ___________'s Food and Drug Administration (FDA) approved use of Acuvue Oasys Contact Lenses with Transitions Light Intelligent Technology, world’s first contact lens that automatically darkens when exposed to bright light. These contact lens are soft contact lenses indicated for daily use to correct vision of people with non-diseased eyes who are nearsighted (myopic) or farsighted (hyperopic).

UK
Russia
USA
Germany
None of These


31. Weather scientists predicted normal monsoon in June-September 2018 monsoon season as prevailing conditions as well as neutral ENSO were favourable for good monsoon rainfall.

  1. India receives 89 cm of rainfall during four-month monsoon season, which is almost 75% of its annual rainfall.
  2. Most important favourable condition for good monsoon is near-neutral to neutral ENSO (_________________) in equatorial Pacific Ocean, off coast of South America.
  3. Moreover, La Niña conditions are present and equatorial sea surface temperatures (SSTs) are below average across central and eastern Pacific Ocean. Transition from La Niña to ENSO-neutral is likely during March-May season, with neutral conditions to continue in second half of year.
El New Southern Oscillation
El Nino Safe Oscillation
El Nino Suburban Oscillation
El Nino Southern Oscillation
None of These




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