science & tech MCQ section 4 MCQ Questions & Answers Detailed Explanation

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Questions : Who propounded the possibility of placing communications satellites in geosynchronous orbit for the first time ?

(a) William Herschel

(b) Pierre Laplace

(c) Arthur C. Clarke

(d) Edwin P. Hubble

The correct answers to the above question in:

Answer: (c)

Arthur C. Clarke was a British science fiction author, inventor, and futurist, famous for his short stories and novels, among them 2001: A Space Odyssey (1968), and as a host and commentator in the British television series Mysterious World.

Clarke has contributed to the popularity of the idea that geostationary satellites would be ideal telecommunications relays.

He described this concept in a paper titled Extra-Terrestrial Relays – Can Rocket Stations Give Worldwide Radio Coverage?, published in Wireless World in October 1945. The geostationary orbit is now sometimes known as the Clarke Orbit or the Clarke Belt in his honour.

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Question : 1

“Connect 2Decode” (C2D) Project is related with

a) It isrelated with the decoding of Bt brinjal and its effect on human health.

b) It isrelated with the biological and genetic information relating to the mycobacterim tuberculosis (mtb) genome.

c) It is related with decoding of HYV virus.

d) None

Answer: (b)

C2D project is a quest towards conquest of tuberculosis, is launching a massive initiative to further the understanding of the biology of the causative organism, Mycobacterium tuberculosis.

Question : 2

Consider the following statements about Solar Impulse 2:

  1. World’s first solar powered aircraft is on global journey.
  2. It is a Swiss long-range solar-powered aircraft project and claimed to be first aircraft to fly in day only without consuming conventional fuel.
  3. The Solar Impulse 2 has 17,248 solar cells inbuilt into its wings. These cells supply renewable energy to propel the electric motors of aircraft.
  4. It was successfully landed in Ahmedabad, Gujarat.
Which of the statements given above is/are correct?

a) 1, 3 and 4 only

b) 2, 3 and 4 only

c) 1, 2 and 3 only

d) All of the above

Answer: (a)

It is a Swiss long-range solar-powered aircraft project and claimed to be first aircraft to fly day and night without consuming conventional fuel.

Question : 3

Nuclear explosive devices were tested in India at

a) Bangalore

b) Kanchipuram

c) Pokharan

d) Sriharikota

Answer: (c)

Pokhran is a city and a municipality located in Jaisalmer district in the Indian state of Rajasthan. It is a remote location in the Thar Desert region and served as the test site for India’s first underground nuclear weapon detonation.

It shot into the international limelight on 7 September 1974 when the then Indian Prime Minister Indira Gandhi verbally authorized scientists at the Bhabha Atomic Research Centre (BARC) at Trombay to detonate a small and miniaturized nuclear device.

Throughout its development, the device was formally called the “Peaceful Nuclear Explosive (PNE)” by the Indian Government, but it was usually referred to as the Operation Smiling Buddha.

On May 11 of 1998, 24 years after the first operation, the Atomic Energy Commission of India and the Defence Research and Development Organisation (DRDO) carried out the joint operation, known as Pokhran-II. The AEC India detonated its four devices as part of the underground nuclear testing on the Pokhran Test Range.

Question : 4

Which of the following social networking site has joined GSM operators lobby group Cellular operators Association of India (COAI)?

a) Twitter

b) Linkedin

c) Orkut

d) Facebook

Answer: (d)

Facebook has joined GSM operators lobby group Cellular operators Association of India (COAI). This move will help it get a bigger and effective platform to raise various issues with the government.

Question : 5

How many countries have, signed Nuclear Liability Treaty under the aegis of IAEA.

a) 11

b) 13

c) 12

d) 14

Answer: (d)

The international covenant — which provides a framework for channelling liability and providing speedy compensation in the event of a nuclear accident — was signed at the International Atomic Energy Agency offices in Vienna by Dinkar Khullar, India’s Ambassador to Austria. The IAEA is the “depository” of the CSC, which has so far been signed by 14 countries and ratified by four, including the U.S.

Question : 6

What is the name of the world’s first womb transplant baby?

a) Margaret

b) Louis

c) Glenn

d) Vincent

Answer: (d)

Vincent, the world’s first womb transplant baby was born to a Swedish family.

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