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India: Science and Technology Test 70

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India: Science and Technology Test 70
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Consider the following statements:
    $$1$$. A Lagrangian Point is a point in the space where the gravitational pull of the $$2$$ celestial bodies balance each other.
    $$2$$. Aditya would be placed at Lagrangian Point L-$$3$$ and James Webb Space Telescope would be placed at the Lagrangian Point L-$$2$$
    Which of the given statement(s) is/are correct?
    Solution
    A Lagrange point is a location in space where the combined gravitational forces of two large bodies. India’s first solar mission, Aditya would be placed in Halo Orbit around the Lagrangian Point L1. It would study Corona and Chromosphere of the Sun.
  • Question 2
    1 / -0
    Consider the following statements about 'Bio-Toilets'.
    $$1$$. Inoculum is used to add anaerobic bacteria to Bio-Toilets.
    $$2$$. Inoculum is a mixture of Water and Potassium Hydroxide.
    Which of the given statement(s) is/are correct?
    Solution
    Bio-toilet is a toilet which uses bacteria for decomposition of human excreta. Anaerobic bacteria are used to decompose the human excreta. Human waste up to 99.9% gets digested by Anaerobic Microbial Inoculum filled in the bio-tank and gets converts into reusable water and little methane gas.
  • Question 3
    1 / -0
    Consider the following statements about 'Asteroids'.
    $$1$$. They are smaller than the Earth in size.
    $$2$$. They have regular and well defined shape.
    $$3$$. Asteroids have irregular orbits of revolution.
    Which of the given statement(s) is/are correct?
    Solution
    Asteroids are rocky worlds revolving around the sun that are too small to be called planets. There are millions of asteroids, ranging in size from hundreds of miles to several feet across. As asteroids revolve around the sun in elliptical orbits, they rotate, sometimes tumbling quite erratically. Most asteroids lie in a vast ring between the orbits of Mars and Jupiter.
  • Question 4
    1 / -0
    Consider the following statements about 'Supercritical Carbon Di Oxide Brayton Test Loop Facility'.
    $$1$$. It uses supercritical carbon dioxide as the working fluid which is half as dense as the normal steam.
    $$2$$. The thermal inputs to the Brayton Test Facility can be the conventional sources and the non-conventional as well including the solar and the nuclear sources of energy.
    Which of the given statement(s) is/are correct?
    Solution
    Brayton Test Loop Facility is a technology that uses Supercritical Carbon Di Oxide for generation of power. Indian scientists at IISC, Bengaluru, have indigenously developed the Super Critical Carbon Di Oxide Brayton Test Loop facility. Supercritical Carbon Di Oxide would replace steam as the working fluid in power plants. Brayton test loop facility can be linked to solar thermal sources of heat thus, enhancing the amount of green & renewable energy.
  • Question 5
    1 / -0
    Consider the following statements about the 'Structure of the Sun':
    $$1$$. Corona is the outermost layer of the Sun having no upper limit.
    $$2$$. Corona is visible with naked eyes on days of partial solar eclipse.
    $$3$$. Chromosphere is the layer where temperature increases as we move away from the surface of the Sun.
    $$4$$. A narrow transition zone separates Corona from Chromosphere.
    Which of the given statement(s) is/are correct?
    Solution
    Corona is the outermost layer of the Sun. It starts 2,100 km above the surface of the Sun. It extends millions of kilometres into outer space and is most easily seen during a total solar eclipse. Chromosphere is the layer of the Sun between 400-2,100KM from the surface of the Sun. Corona is the layer where temperature increases as we move away from the surface of the Sun. A thin and very irregular layer of the Sun's atmosphere that separates the hot corona from the much cooler chromosphere.
  • Question 6
    1 / -0
    Choose the correct option to complete the statements given below:
    The alloy of tin and _____ is called bronze.
  • Question 7
    1 / -0
    Who has taken charge as the new Inspector General of Police (IGP) Kashmir Range?
    Solution
    Swayam Prakash Pani (41), a 2000-batch Indian Police Service (IPS) officer of the Jammu and Kashmir cadre, has taken charge as the new Inspector General of Police (IGP) Kashmir Range on February 12, 2018. With this, he became the youngest officer to hold the post. Pani has served in key positions, including deputy IG, south Kashmir range, senior superintendent of police, Kulgam and Kathua. He has also held position in the served in the Intelligence Bureau and National Investigation Agency (NIA). He replaced Munir Ahmad Khan, who has been given the charge of Additional Director General of Police (ADGP) security and home guards.
  • Question 8
    1 / -0
    Which of the following chemicals, used in firecrackers, have been banned by the Supreme Court of India?
    $$1$$. Barium
    $$2$$. Sulphur
    $$3$$. Lithium
    $$4$$. Sodium
    Choose the correct option.
    Solution
    Supreme Court has banned the use of 5 chemicals in firecrackers that have been categorized as toxic by Central Pollution Control Board. They are lead, antimony, arsenic, mercury and lithium. Petroleum and Explosives Safety Organization (PESO) would monitor the implementation of the judgement.
  • Question 9
    1 / -0
    Consider the following statements about $$'GET 2020'$$.
    $$1$$. It is a programme started by the Government of India.
    $$2$$. The aim of the programme is to eliminate Trachoma by $$2020$$.
    Which of the given statement(s) is/are correct?
    Solution
    In 1996, World Health Organization launched the WHO Alliance for the Global Elimination of Trachoma by the year 2020 (GET2020). The elimination of trachoma has been specified by the WHO in its GET2020 programme is a partnership which supports country implementation of the SAFE strategy and  the strengthening of national capacity through assessment, monitoring, surveillance, project evaluation and resource mobilization.
  • Question 10
    1 / -0
    Where is the headquarters of Centre for Science and Environment (CSE)?
    Solution
    The Centre for Science and Environment (CSE) is a not-for-profit public interest research and advocacy organisation based in New Delhi. It works as a think tank on environment-development issues in India, poor planning, climate shifts devastating Indias Sundarbans and advocates for policy changes and better implementation of the already existing policies. It is in news recently because the CSE has been ranked the top environment policy think tanks in India while it has secured the 16th position in global rankings by the Think Tanks and Civil Societies Program (TTCSP) of the Lauder Institute at the University of Pennsylvania. The TTCSP conducts a research on the role policy institutes play in governments and civil societies around the world.
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