SCIENCE AND TECH Flashcards
WHAT IS INDIA STACK?
INDIA STACK IS A COLLECTIVE NAME FOR A SET OF OPEN APPLICATION PROGRAMMING INTERFACE (APIs) AND DIGITAL GOODS THAT WILL ALLOW GOVERNMENTS, BUSINESS AND OTHER ORGANIZATIONS TO LEVERAGE IDENTITY, DATA AND PAYMENT INFRASTRUCTURE AT SCALE.
WHAT IS CHOLEDERM ?
IS THE FIRST INDIGENOUSLY DEVELOPED ANIMAL DERIVED WOUND CARE PRODUCT THAT MEETS ALL REGULATORY REQUIREMENTS.
WHAT IS PINGER?
MANY UNDERWATER VEHICLES ARE FITTED WITH AN ACOUSTIC DEVICE OFTEN CALLED A PINGER WHICH EMITS SOUNDS THAT CAN BE DETECTED UNDERWATER BY RESCUERS.
WHAT IS CURV-21? WHY IN NEWS?
US CABLE CONTROLLED UNDERSEA RECOVERY VEHICLE.
WELL BE USED TO RESCUE TITAN SUBMARINE.
EUCLID SPACE TELESCOPE IS BUILT BY?
AIM-
EUROPEAN SPACE AGENCY
AIM IS TO STUDY DARK UNIVERSE.
WHAT ARE EXOPLANETS?
ANY PLANET THAT ORBITS A STAR OTHER THAN THE SUN.
WHAT ARE ROGUE PLANETS?
EXOPLANETS THAT ARE NOT BOUND TO ANY STAR BUT INSTEAD ORBIT THE GALACTIC CENTER.
CLOSEST EXOPLANET?
PROXIMA CENTAURI B. IT ORBITS THE PROXIMA CENTAURI (CLOSEST STAR TO THE SUN).
WHAT ARE MASSIVE GIANT EXOPLANETS?
PLANETS HAVING MASS GREATER THAN 4 TIMES THAT OF JUPITER.
ELEMENT WITH HIGHEST ATOMIC NUMBER?
OGANESSON.
HEAVIEST ELEMENT IN TERMS OF ATOMIC WEIGHT?
OGANESSON.
ONLY TWO ELEMENTS ARE LIQUID IN ROOM TEMPERATURE?
MERCURY
BROMINE
FIRST 92 ELEMENTS OF PERIODIC TABLE ARE NATURALLY OCCURRING EXCEPT?
TECHNETIUM AND PROMETHIUM.
HOW CAN WE SAY THAT AN ELECTRON HAS LESS MASS THAN A PROTON, OR THAT A PHOTON HAD NO MASS AT ALL?
THE STRONGER A PARTICLE INTERACTS WITH THE HIGGS BOSON THE MORE MASS IT HAS.
A HIGGS BOSON CAN ALSO INTERACT WITH ANOTHER HIGGS BOSON- SO ITS MASS IS GREATER THAN THAT OF PROTONS OR NEUTRONS.
WHAT IS LARGE HADRON COLLIDER?
HOW DOES IT WORKS?
IT IS WORLD’S LARGEST AND MOST POWERFUL PARTICLE ACCELERATOR.
IT WORKS BY SMASHING TINY PARTICLES TOGETHER TO ALLOW SCIENTISTS TO OBSERVE THEM AND SEE WHAT’S INSIDE.
LARGE HADRON COLLIDER IS BUILT BY?
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH (CERN) BETWEEN 1998 AND 2008 IN COLLABORATION WITH MORE THAN THOUSANDS SCIENTISTS AND HUNDREDS OF UNIVERSITIES AND LABORATORIES AS WELL AS MORE THAN 100 COUNTRIES.
WHAT ARE CRITICAL MINERALS?
MINERALS IN WHICH THE RISK OF SUPPLY SHORTAGE AND ASSOCIATED IMPACT ON ECONOMY IS RELATIVELY HIGHER THAN OTHER RAW MATERIALS.
ENUMERATE CRITICAL MINERALS OF INDIA?
THE 30 MINERALS FEATURED ON THE LIST INCLUDE
1 ANTIMONY
2 BERYLLIUM
3 BISMUTH
4 COBALT
5 COPPER
6 CADMIUM
7 GALLIUM
8 GERMANIUM
9 GRAPHITE
10 HAFNIUM
11 INDIUM
12 LITHIUM
13 MOLYBDENUM
14 NIOBIUM
15 NICKEL
16 PGE (PLATINUM GROUP ELEMENTS)
17 PHOSPHOROUS
18 POTASH
19 REEs
20 RHENIUM
21 SILICON
22 STRONTIUM
23 SELENIUM
24 TANTALUM
25 TELLURIUM
26 TIN
27 TITANIUM
28 TUNGSTEN
29 VANADIUM
30 ZIRCONIUM
ENUMERATE PLATINUM GROUP OF ELEMENTS?
1 PLATINUM
2 PALLADIUM
3 RHODIUM
4 RUTHENIUM
5 IRIDIUM
6 OSMIUM
ASPARTAME IS A METHYL ESTER DIPEPTIDE OF TWO NATURAL AMINO ACIDS?
1 L-ASPARTIC ACID
2 L-PHENYLALANINE
WHAT ARE COSMIC CLOCKS?
COSMIC CLOCKS OR PULSARS ARE RAPIDLY SPINNING NEUTRON STARS THAT SEND OUT RADIO SIGNALS AT REGULAR INTERVALS WHICH ARE SEEN AS BRIGHT FLASHES FROM THE EARTH.
WHAT ARE NANO-HERTZ GRAVITATIONAL WAVES?
THESE ARE ULTRA LOW FREQUENCY GRAVITATIONAL WAVES THAT EMERGE FROM A COLLIDING PAIR OF VERY LARGE MONSTER BLACK HOLES.
WHAT HAPPENS WHEN THERE IS CONTINUOUS ARRIVAL OF NANO HERTZ GRAVITATIONAL WAVES?
IT CREATES A CONSISTENT HUMMING IN OUR UNIVERSE WHICH GETS DETECTED USING POWERFUL RADIO TELESCOPES FROM THE EARTH.
WORLD’S MOST POWERFUL AND LARGE RADIO TELESCOPES ARE?
1 UPGRADED GIANT METREWAVE RADIO TELESCOPE (uGMRT)
2 WESTERBORK SYNTHESIS RADIO TELESCOPE
3 EFFELSBERG RADIO TELESCOPE
4 LOVELL TELESCOPE
5 NANÇAY RADIO TELESCOPE
6 SARDINIA RADIO TELESCOPE
WERE DEPLOYED TO STUDY 25 PULSARS OVER A PERIOD OF 15 YEARS.
INDIA’S GIANT METREWAVE RADIO TELESCOPE IS LOCATED IN?
NEAR NARAYANGAON IN PUNE.
INDIA’S GIANT METREWAVE RADIO TELESCOPE IS OPERATED BY?
NATIONAL CENTRE FOR RADIO ASTROPHYSICS (NCRA) WHICH IS A PART OF THE TATA INSTITUTE OF FUNDAMENTAL RESEARCH, MUMBAI.
THE LARGEST AND THE MOST SENSUAL RADIO TELESCOPE ARRAY IN THE WORLD AT LOW FREQUENCIES IS?
INDIA’S GIANT METREWAVE RADIO TELESCOPE.
DOES CHANDRAYAAN-3 HAVE AN ORBITER COMPONENT LIKE CHANDRAYAAN-2?
NO.
WHAT ARE QUASARS?
QUASARS ARE TREMENDOUSLY ACTIVE SUPERMASSIVE BLACK HOLES MILLIONS TO BILLIONS OF TIMES MORE MASSIVE THAN OUR SUN, USUALLY RESIDING AT THE CENTRE OF GALAXIES.
CAUSATIVE AGENT OF LEPTOSPIROSIS?
A BACTERIUM CALLED LEPTOSPIRA INTERROGANS OR LEPTOSPIRA.
CARRIERS OF LEPTOSPIROSIS?
WILD OR DOMESTIC ANIMALS, INCLUDING RODENTS, CATTLE, PIGS, AND DOGS, WATER BUFFALOES, GOATS, HORSES, AND SHEEP.
MISCONCEPTION ABOUT LEPTOSPIROSIS?
THE DISEASE HAS BEEN CALLED ILI JWARA IN KANNADA AND ELI PANI IN MALAYALAM BOTH MEANING RAT FEVER. THIS USAGE HAS FED THE COMMON BELIEF THAT RATS ARE THE SOLE CAUSE OF THE DISEASE, WHICH IS NOT TRUE.
MODE OF TRANSMISSION OF LEPTOSPIROSIS?
SHEDDING OF LEPTOSPIRA, USUALLY IN THE URINE OF THE INFECTED ANIMALS.
WHAT ARE DARK PATTERNS?
DARK PATTERNS ARE ALSO KNOWN AS DECEPTIVE PATTERNS.
● IT IS THE TERM USED TO DESCRIBE THE WAYS IN WHICH WEBSITES OR APPS MAKE THEIR USERS
● DO THINGS THAT THE USERS DO NOT INTEND TO DO OR WOULD NOT OTHERWISE DO
● TO DISCOURAGE USER BEHAVIOUR THAT IS NOT BENEFICIAL FOR THE COMPANIES.
WHAT IS OBERTH EFFECT?
IN ASTRONAUTICS, A POWERED FLYBY, OR OBERTH MANEUVER, IS A MANEUVER IN WHICH A SPACECRAFT FALLS INTO A GRAVITATIONAL WELL AND THEN USES ITS ENGINES TO FURTHER ACCELERATE AS IT IS FALLING, THEREBY ACHIEVING ADDITIONAL SPEED. THE RESULTING MANEUVER IS A MORE EFFICIENT WAY TO GAIN KINETIC ENERGY THAN APPLYING THE SAME IMPULSE OUTSIDE OF A GRAVITATIONAL WELL. THE GAIN IN EFFICIENCY IS EXPLAINED BY THE OBERTH EFFECT, WHEREIN THE USE OF A REACTION ENGINE AT HIGHER SPEEDS GENERATES A GREATER CHANGE IN MECHANICAL ENERGY THAN ITS USE AT LOWER SPEEDS. IN PRACTICAL TERMS, THIS MEANS THAT THE MOST ENERGY-EFFICIENT METHOD FOR A SPACECRAFT TO BURN ITS FUEL IS AT THE LOWEST POSSIBLE ORBITAL PERIAPSIS, WHEN ITS ORBITAL VELOCITY (AND SO, ITS KINETIC ENERGY) IS GREATEST.
WHICH AMOEBA IS KNOWN AS BRAIN EATING AMOEBA?
NAEGLERIA FOWLERI.
HABITAT OF NAEGLERIA FOWLERI?
IT IS A SINGLE CELLED ORGANISM FOUND IN WARM FRESH WATER ENVIRONMENTS SUCH AS LAKES, RIVERS, AND SPRINGS.
IT CANNOT SURVIVE IN SALINE CONDITIONS HENCE NOT FOUND IN SEAWATER.
PREVENTION AND TREATMENT OF NAEGLERIA FOWLERI?
IT DOES NOT SPREAD FROM PERSON TO PERSON.
COMBINATIONS OF DRUGS INCLUDES AMPHOTERICIN B, AZITHROMYCIN, FLUCONAZOLE, RIFAMPIN, MILTEFOSINE AND DEXAMETHASONE.
WHAT ARE THE KEY UPGRADES IN CHANDRAYAAN-3 THAT MAKE IT BETTER FROM CHANDRAYAAN-2?
1 STRENGTHENED LEGS.
2 BIGGER FUEL TANK.
3 SOLAR PANELS ON FOUR SIDES (CHANDRAYAAN ONLY 2 SIDES).
4 MORE INSTRUMENTS- LASER DOPPLER VELOCIMETER WHICH WILL FIRE LASER BEAMS TO THE LUNAR SURFACE TO CALCULATE THE LANDER’s SPEED.
5 UPDATED SOFTWARES-HAZARD DETECTION AND AVOIDANCE CAMERA, NAVIGATION AND GUIDANCE SOFTWARE.
6 UNDERGONE MULTIPLE STRESS TESTS.
WHAT IS LVM-3?
THE LAUNCH VEHICLE Mark-III OR LVM-3, IS A THREE STAGE MEDIUM-LIFT LAUNCH VEHICLE DEVELOPED BY THE INDIAN SPACE RESEARCH ORGANISATION (ISRO).
● PREVIOUSLY KNOWN AS THE GEOSYNCHRONOUS SATELLITE LAUNCH VEHICLE (GSLV) MARK-III.
LVM-3 IS DEVELOPED BY?
LIQUID PROPULSION SYSTEMS CENTRE OF ISRO.
PAYLOAD CAPACITY OF LVM-3?
○ 4 TONNE CLASS SATELLITES OF THE GSAT SERIES INTO GEOSYNCHRONOUS TRANSFER ORBITS.
○ 8 TONNE HEAVY PAYLOADS INTO LOW EARTH ORBITS OF 600 KM ALTITUDE.
STAGES OF LVM-3?
1 FIRST (OR BOTTOM MOST) STAGE:
○ IT HAS TWO S200 BOOSTERS STRAPPED TO THE SIDES OF THE ROCKET BODY.
○ FUEL USED: SOLID FUEL CALLED HYDROXYL TERMINATED POLYBUTADIENE.
◎2 SECOND STAGE:
○ IT IS POWERED BY TWO VIKAS ENGINES
○ FUEL USED: LIQUID FUEL – EITHER DIMETHYLHYDRAZINE.
3 UPPERMOST FINAL STAGE:
○ IT IS POWERED BY A CRYOGENIC ENGINE.
○ IT COMBUSTS LIQUEFIED HYDROGEN WITH LIQUEFIED OXYGEN.
○ HYDROGEN HAS A VERY HIGH SPECIFIC IMPULSE AS ROCKET FUELS GO, BUT USING IT IN AN ENGINE REQUIRES IT TO BE LIQUEFIED FIRST.
○ LIQUEFIED HYDROGEN MUST BE STORED AT VERY LOW TEMPERATURE, AND WITH SPECIAL PUMPING AND TRANSPORT SYSTEMS.
THERE IS HIGHER PRESENCE OF WHICH BACTERIA ON THE WRISTS OF WATCH WEARERS COMPARED TO OTHERS?
STAPHYLOCOCCUS AUREUS.
WRISTWATCHES ACT AS POTENTIAL SOURCE OF HOSPITAL ACQUIRED INFECTIONS.
REPENOMAMUS ROBUSTUS WAS IN NEWS RECENTLY. WHAT IS IT?
IT WAS ONE OF THE LARGEST MAMMAL DURING DINOSAURS TIME.
USED TO EAT PSITTACOSAURUS LUJIATUNENSIS (A PLANT EATER).
STEEL SLAG ROAD TECHNOLOGY HAS BEEN DEVELOPED BY?
THE CENTRAL ROAD RESEARCH INSTITUTE UNDER A RESEARCH PROJECT IN COLLABORATION WITH THE MINISTRY OF STEEL AND FOUR MAJOR STEEL MANUFACTURING COMPANIES.
THE FIRST ROAD MADE WITH STEEL SLAG ROAD INTERPRETATION TECHNOLOGY IS IN?
SURAT, GUJARAT.
INDIA AI IS A JOINT VENTURE BY THE?
MINISTRY OF ELECTRONICS AND INFORMATION TECHNOLOGY (MeitY), NATIONAL e- GOVERNANCE DIVISION (NeGD) AND NATIONAL ASSOCIATION OF SOFTWARE AND SERVICE COMPANIES (NASSCOM).
WHAT IS DESI INITIATIVE?
DESI STANDS FOR DIGITIZATION, EDUCATION, SUSTAINABILITY AND INNOVATION.
FINLAND WILL HELP INDIA DEVELOP AND BUILD QUANTUM COMPUTERS UNDER ITS DESI INITIATIVE.
PANAGROLAIMUS KOLYMAENSIS AND CAENORHABDITIS ELEGANS WERE IN NEWS RECENTLY. WHAT ARE THEY?
○ THEY ARE NEMATODES CAPABLE OF DOING CRYPTOBIOSIS.
WHAT IS CRYPTOBIOSIS?
CRYPTOBIOSIS IS A STATE OF EXTREME INACTIVITY IN RESPONSE TO ADVERSE ENVIRONMENTAL CONDITIONS. IN THE CRYPTOBIOTIC STATE, ALL METABOLIC PROCEDURES STOP, PREVENTING REPRODUCTION, DEVELOPMENT, AND REPAIR.
HOW DO NEMATODES CARRY OUT CRYPTOBIOSIS?
WITH THE HELP OF A SUGAR CALLED TREHALOSE.
SEMICON INDIA 2023 IS ORGANIZED BY?
INDIA SEMICONDUCTOR MISSION.
INDIA SEMICONDUCTOR MISSION HAS BEEN SET UP BY AND?
SET UP BY AN INDEPENDENT BUSINESS DIVISION WITHIN DIGITAL INDIA CORPORATION.
DIGITAL INDIA CORPORATION IS A NOT-FOR-PROFIT COMPANY SET UP BY THE MINISTRY OF ELECTRONICS AND INFORMATION TECHNOLOGY (MeitY) UNDER SECTION 8 OF THE COMPANIES ACT 2013.
◎ MANDATE- IT HAS ALL THE ADMINISTRATIVE AND FINANCIAL POWERS AND IS TASKED WITH THE RESPONSIBILITY OF PROMOTING THE INDIAN SEMICONDUCTOR ECOSYSTEM IN MANUFACTURING, PACKAGING AND DESIGN.
DRACO PROJECT IS LAUNCHED BY?
NASA AND THE DEFENSE ADVANCED RESEARCH PROJECTS AGENCY.
GOAL OF DRACO PROJECT?
THE GOAL OF THE DEMONSTRATION ROCKET FOR AGILE CISLUNAR OPERATIONS (DRACO) PROGRAM IS TO DEMONSTRATE A NUCLEAR (FISSION) THERMAL ROCKET (NTR) IN ORBIT.
PRICE OF DRUGS IN INDIA ARE REGULATED AS PER PROVISIONS OF?
DRUGS (PRICE CONTROL) ORDER, 2013, BY NATIONAL PHARMACEUTICAL PRICING AUTHORITY (NPPA).
DEPARTMENT AND MINISTRY OF NATIONAL PHARMACEUTICAL PRICING AUTHORITY?
DEPARTMENT OF PHARMACEUTICALS.
MINISTRY OF CHEMICALS AND FERTILIZERS.