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The following question based on science & tech topic of general awareness mcq
(a) Carbon Aero
(b) None of these
(c) Carbon Aerogel
(d) Carbon Aerosol
The correct answers to the above question in:
Answer: (c)
The world’s lightest substance has been developed by Chinese scientists of Zhejiang University - Carbon aerogel that has a density of only one sixth of that of the air. Its density is only 0.16 mg/cubic centimetre, less than previously recorded lightest substance, graphite aerogel.
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Read more science and tech Based General Awareness Questions and Answers
Question : 1
What is the name of Research Station established by Indian Government for conducting research in Antarctic ?
a) Yamunotri
b) None of the above
c) Uttari Gangotri
d) Dakshin Gangotri
Answer »Answer: (d)
Dakshin Gangotri was the first scientific base station of India situated in Antarctica, part of the Indian Antarctic Program. It is located at a distance of 2,500 kilometres from the South Pole. It was abandoned in 1988-1989 after it was submerged in ice. It was succeeded by the Maitri.
Question : 2
Which of the following statements are correct?
- Green diesel is chemically same as biodiesel.
- Green diesel can be made from vegetable oils, waste cooking oil and animal fats.
- A Boeing aircraft ecoDemonstrator 787 is the first test flight to use green diesel blended with petroleum jet fuel.
a) 1 and 3 only
b) 2 and 3 only
c) 1 and 2 only
d) None of these
Answer »Answer: (b)
Green diesel is chemically distinct fuel product than biodiesel.
Question : 3
Which is NOTthe name ofthe missile developed by the Defense Research and Development Organisation (DRDO)?
a) Pinaka
b) Brahmos
c) Shaurya
d) Agni
Answer »Answer: (d)
Agni is a surface to surface missile developed in India under Integrated Guided Missile Programme.
Question : 4
Which of the following is a stealth aircraft virtually undetectable even by radar?
a) B1-B Lancer
b) FA-18 Homets
c) B-52 Stratofortrees
d) B-2 Spirit
Answer »Answer: (c)
The Boeing B-52 Stratofortress is a long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since the 1950s. The bomber carries up to 32,000 kg of weapons.
Due to the late 1950s-era threat of surface-to-air missiles (SAMs) that could threaten high-altitude aircraft, seen in the practice in the 1960 U-2 incident, the intended use of B-52 was changed to serve as a low-level penetration bomber during a foreseen attack upon the Soviet Union, as terrain masking provided an effective method of avoiding radar and thus the threat of the SAMs.
Although never intended for the low-level role, the B-52’s flexibility allowed it to outlast several intended successors as the nature of aerial warfare changed.
Question : 5
Consider the following statements:
- NASA’s Hubble Space Telescope has spotted massive saltwater ocean under the icy crust of Jupiter’s largest moon Ganymede.
- Ganymede is the largest moon in our solar system.
- It is also the only moon with its own magnetic field.
a) 1 and 3 only
b) 2 and 3 only
c) 1 and 2 only
d) All of the above
Answer »Answer: (d)
Scientists believe that this finding could potentially support life. NASA’s Galileo mission had provided first evidence of ocean in Ganymede after measuring its magnetic field in 2002.
Question : 6
ISRO is abbreviation for
a) International Space Research Organisation
b) Indian Space Research Organisation
c) International Sales Research Organisation
d) Indian Scientific Research Organisation
Answer »Answer: (b)
The Indian Space Research Organisation (ISRO) is the primary space agency of the Indian government. ISRO is amongst the six largest government space agencies in the world, along with NASA, RKA, ESA, CNSA and JAXA. Its primary objective is to advance space technology and use its applications for national benefit. Established in 1969, ISRO superseded the erstwhile Indian National Committee for Space Research (INCOSPAR).
Headquartered in Bangalore, ISRO is under the administrative control of the Department of Space, Government of India. ISRO has achieved numerous milestones since its establishment. India’s first satellite, Aryabhata, was built by ISRO and launched by the Soviet Union in 1975. Rohini, the first satellite to be placed in orbit by an Indian-made launch vehicle, SLV-3, was launched in 1980.
ISRO subsequently developed two other rockets: the Polar Satellite Launch Vehicle (PSLV) for putting satellites into polar orbits and the Geosynchronous Satellite Launch Vehicle (GSLV) for placing satellites into geostationary orbits.
These rockets have launched numerous communications satellites, earth observation satellites, and, in 2008, Chandrayaan-1, India’s first mission to the Moon.
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