Practice Science and tech - general awareness mcq Online Quiz (set-2) For All Competitive Exams

Timber is a renewable resource, like plantation forests, which are planted and then cut down to make paper. It is sometimes called a sustainable resource, so long as we keep planting and growing trees at the same rate as we cut them down. Fossil fuels such as coal, petroleum, and natural gas are non-renewable resources.

BrahMos is a stealth supersonic cruise missile that can be launched from submarines, ships, aircraft or land. It is a joint venture between Republic of India's Defence Research and Development Organisation (DRDO) and Russian Federation's NPO Mashinostroeyenia.

Note : A hypersonic version of the missile, BrahMosII, is also presently under development with speed of Mach 7-8 to boost aerial fast strike capability. It is expected to be ready for testing by 2017. The name BrahMos is a portmanteau formed from the names of two rivers, the Brahmaputra of India and the Moskva of Russia. In 2016, as India became a member of the Missile Technology Control Regime (MTCR), India and Russia are now planning to jointly develop a new generation of BrahMos missiles with 600 km-plus range and an ability to hit protected targets with pinpoint accuracy.

GARUDA (Global Access to Resource Using Distributed Architecture) is the other name of the Indian National Grid Computing Initiative. It is a collaboration of scientific and technological researchers on a nationwide grid comprising of computational nodes, mass storage and scientific instruments.

Aryabhata was India’s first satellite, named after the great Indian astronomer of the same name. It was launched by the Soviet Union on 19 April 1975 from Kapustin Yar using a Cosmos-3M launch vehicle.

Scientists genetically engineered Tulsi or basil to produce eugenol, having pharmaceutical value which controls the breast cancer. Tulsi is a medicinal plant and has anti-cancerous compounds.

The exercise aimed at building and promoting positive military to military relations between the armies of India and Indonesia. It included sharing of experience in counter terrorism and conduct of joint counter insurgency training.

Bangalore-based Indian Institute of Science (IISc) was ranked 99th in the ‘Times Higher Education (THE) Ranking for Engineering & Technology’. US institutions Stanford, CalTech and Massachusetts Institute of Technology (MIT) were ranked top three in the list.

China launched its most sophisticated observation satellite Gaofen-4.

Sunita Williamswas launched to the International Space Station (ISS) with STS-116, aboard the Space Shuttle Discovery, on December 9, 2006, to join the Expedition 14 crew. Discovery is one of the orbiters from NASA’s Space Shuttle program and the third of five fully operational orbiters to be built.

The Agni missile is a family of medium to intercontinental range ballistic missiles developed by India, named after one of the five elements of nature. In the Agni series of ballistic missiles, Agni II, Agni III and Agni IV are Intermediate Range Ballistic Missiles (IRBMs). These are all nuclear capable missiles.

Lukosin is a herbal drug developed by Defense Research Development Organisation(DRDO) for treatment of Lucoderma( White patches on skin).

Hybridoma technology is used to commercially produce of monoclonal antibodies. The monoclonal antibodies are protective proteins produced by the clone of single immune cell.

INSAT or the Indian National Satellite System is a series of multipurpose Geostationary satellites launched by ISRO to satisfy the telecommunications, broadcasting, meteorology, and search and rescue operations. Commissioned in 1983, INSAT is the largest domestic communication system in the Asia Pacific Region.

The Indian National Satellite (INSAT) system was commissioned with the launch of INSAT1B in August 1983 (INSAT-1A, the first satellite was launched in April 1982 but could not fulfil the mission).

INSAT system ushered in a revolution in India’s television and radio broadcasting, telecommunications and meteorological sectors. It enabled the rapid expansion of TV and modern telecommunication facilities to even the remote areas and off-shore islands.

Dolly sheep was the first cloned animals produced by inserting egg nucleus of mother sheep into the udder cytoplasm by electric stimulation [Shock].

Agni-II is a medium-range ballistic missile (MRBM) with two solid-fuel stages and a Post Boost Vehicle (PBV) integrated into the missile’s Re-entry Vehicle (RV). When the Agni-II was first launched, then Defence Minister George Fernandes indicated that the maximum range of the Agni-II was 3,000 km.

Since then, ranges from 2,000 km to 2,500 km have been stated, while Dr Kalam, at Aero India ’98, stated that Agni-II had a maximum range of 3,700 km. The Agni’s manoeuvring RV is made of a carbon-carbon composite material that is light and able to sustain high thermal stresses of re-entry, in a variety of trajectories.

The Ghauri-II is a medium-range ballistic missile (MRBM). A longer ranged variant of the GhauriI, it was developed by increasing the length of the motor assembly and using improved propellants. The Ghauri-II missile has a maximum range of 2,000 km.

Project Loon began with a pilot test in June 2013, when thirty balloons were launched from New Zealand’s South Island and beamed Internet to a small group of pilot testers. The pilot test has since expanded to include a greater number of people over a wider area.

Looking ahead, Project Loon will continue to expand the pilot, with the goal of establishing a ring of uninterrupted connectivity at latitudes in the Southern Hemisphere, so that pilot testers in these latitudes can receive continuous service via balloon-powered Internet.

Adnan Z. Amin was elected as the Director General of the International Renewable Energy Agency (IRENA) in April 2011. Helene Pelosse was the earlier Directorate General of IRENA. She served in this position for 15 months, from June 30, 2009 until October 21, 2010.

A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometres (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east).

At this altitude, one orbit takes 24 hours, the same length of time as the earth requires to rotate once on its axis. The term geostationary comes from the fact that such a satellite appears nearly stationary in the sky as seen by a ground-based observer.

A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth’s rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of the analemma.

Geosynchronous satellites have the advantage of remaining permanently in the same area of the sky, as viewed from a particular location on Earth, and so permanently within view of a given ground station.

Geostationary satellites have the special property of remaining permanently fixed in exactly the same position in the sky, meaning that ground-based antennas do not need to track them but can remain fixed in one direction.

Heavy water, formally called deuterium oxide (D2O), is a form of water that contains a larger than normal amount of the hydrogen isotope deuterium, (also known as heavy hydrogen). In nuclear reactors, heavy water acts as a neutron moderator to slow down neutrons so that they are more likely to react with the fissile uranium-235 than with uranium-238.