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Science & Technology Mixed Quiz: Set 39

  • 20 questions
  • 20 minutes
  • Difficulty: Medium
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About this quiz

Set 39 of the Science & Technology mixed quiz has 20 multiple-choice questions from 17 different topics of the subject: Lunar and Mars Missions: Chandrayaan and Mangalyaan, DRDO and Defence Technology, Mega Science Projects: ITER, CERN, LIGO-India and the Neutrino Observatory and more. 14 of them were asked in real previous-year papers. A topic quiz checks one chapter; this set revises the whole subject at once, the way an exam paper does, where the next question can come from any chapter. Every question carries an explanation of why the correct option is right and why the others are wrong. Keep to the timer, read the explanations at the end, and go back to the notes of any topic where you slipped.

Questions in this quiz

20 questions with answers and explanations

Q1.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2016, GS Paper IMedium

Consider the following statements : The Mangalyaan launched by ISRO 1. is also called the Mars Orbiter Mission 2. made India the second country to have a spacecraft orbit the Mars after USA 3. made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: C. 1 and 3 only

Mangalyaan is the popular name of ISRO's Mars Orbiter Mission, and India reached Mars orbit on its first attempt, but it was not the second country to do so.

Q2.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2016, GS Paper IEasy

With reference to 'LiFi', recently in the news, which of the following statements is/are correct?

1. It uses light as the medium for high-speed data transmission.

2. It is a wireless technology and is several times faster than 'WiFi'.

Select the correct answer using the code given below.

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

LiFi (Light Fidelity) sends data wirelessly by switching LED light on and off far too fast for the eye to notice, and it can be many times faster than WiFi.

Q4.Science & TechnologyAsked in: SSC MTS · 21 August 2019, Shift 3Easy

Hydrogen bomb is based on which Nuclear process?

  1. A.Thermal fusion
  2. B.Heavy Water Ability
  3. C.Thermal fission
  4. D.Rapid breeder reaction
Show answer
Correct answer: A. Thermal fusion

A hydrogen bomb, also called a thermonuclear bomb, uses a fission explosion only as a trigger; the main energy comes from the fusion of the heavy hydrogen isotopes deuterium and tritium into helium at temperatures of millions of degrees, which is why the process is described as thermonuclear or thermal…

Q5.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2016, GS Paper IMedium

India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?

  1. A.It can use thorium in place of uranium for power generation
  2. B.It can attain a global role in satellite navigation
  3. C.It can drastically improve the efficiency of its fission reactors in power generation
  4. D.It can build fusion reactors for power generation
Show answer
Correct answer: D. It can build fusion reactors for power generation

ITER is an experiment to prove that nuclear fusion can work as a large-scale energy source, and every member shares its technology.

Q6.Science & TechnologyEasy

Engineer Day is observed in India on 15 September to mark the birth anniversary of which person?

  1. A.M. Visvesvaraya
  2. B.A. P. J. Abdul Kalam
  3. C.Homi J. Bhabha
  4. D.Satish Dhawan
Show answer
Correct answer: A. M. Visvesvaraya

Mokshagundam Visvesvaraya was born on 15 September 1861, served as Diwan of Mysore, designed the automatic sluice gates used at the Krishna Raja Sagara dam and the block system of irrigation, planned flood protection for Hyderabad, and received the Bharat Ratna in 1955; the day is observed as Engineer Day…

Q7.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2018, GS Paper IHard

With reference to the Genetically Modified mustard (GM mustard) developed in India, consider the following statements : 1. GM mustard has the genes of a soil bacterium that give the plant the property of pest-resistance to a wide variety of pests. 2. GM mustard has the genes that allow the plant cross-pollination and hybridization. 3. GM mustard has been developed jointly by the IARI and Punjab Agricultural University. Which of the statements given above is/are correct ?

  1. A.1 and 3 only
  2. B.2 only
  3. C.2 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: B. 2 only

India's GM mustard, Dhara Mustard Hybrid-11 (DMH-11), is built for hybrid seed production, not pest resistance. It carries the barnase and barstar genes taken from the soil bacterium Bacillus amyloliquefaciens.

Q8.Science & TechnologyEasy

Project NETRA of the Indian Space Research Organisation is associated with which activity?

  1. A.Human spaceflight training
  2. B.Tracking and analysis of objects in space, including debris
  3. C.Satellite based crop insurance
  4. D.Launch of navigation satellites
Show answer
Correct answer: B. Tracking and analysis of objects in space, including debris

NETRA stands for Network for Space Objects Tracking and Analysis. It is ISRO's programme to build radar, optical telescope and control centre capability for space situational awareness, so that India can detect, track and catalogue objects in orbit and warn its own satellites about possible close approaches instead of depending…

Q9.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IEasy

Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of OLED displays over Liquid Crystal displays ? 1. OLED displays can be fabricated on flexible plastic substrates. 2. Roll-up displays embedded in clothing can be made using OLEDs. 3. Transparent displays are possible using OLEDs. Select the correct answer using the code given below:

  1. A.1 and 3 only
  2. B.2 only
  3. C.1, 2 and 3
  4. D.None of the above statements is correct
Show answer
Correct answer: C. 1, 2 and 3

All three are real advantages of OLEDs, and they follow from the fact that each OLED pixel makes its own light.

Q11.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

Consider the following statements :

1. Other than those made by humans, nanoparticles do not exist in nature.

2. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.

3. Nanoparticles of some commercial products which enter the environment are unsafe for humans.

Which of the statements given above is/are correct ?

  1. A.1 only
  2. B.3 only
  3. C.1 and 2
  4. D.2 and 3
Show answer
Correct answer: D. 2 and 3

Metal-oxide nanoparticles are used in cosmetics and some nanoparticles released into the environment can harm people, but nanoparticles are not made only by humans.

Q12.Science & TechnologyMedium

The FAME scheme for electric and hybrid vehicles in India is implemented by which ministry?

  1. A.Ministry of Road Transport and Highways
  2. B.Ministry of Heavy Industries
  3. C.Ministry of New and Renewable Energy
  4. D.Ministry of Power
Show answer
Correct answer: B. Ministry of Heavy Industries

The scheme for Faster Adoption and Manufacturing of Hybrid and Electric Vehicles is a demand and manufacturing support scheme, offering incentives that reduce the purchase price of eligible vehicles and funding charging infrastructure, and it sits with the ministry responsible for the automobile and capital goods industries.

Q13.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IHard

In India, it is legally mandatory for which of the following to report on cyber security incidents? 1. Service providers 2. Data centres 3. Body corporate Select the correct answer using the code given below:

  1. A.1 only
  2. B.1 and 2 only
  3. C.3 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

All three are legally bound to report cyber security incidents to CERT-In, the Indian Computer Emergency Response Team. CERT-In works under Section 70B of the Information Technology Act, 2000 as the national agency for incident response.

Q15.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

With reference to Non-Fungible Tokens (NFTs), consider the following statements : 1. They enable the digital representation of physical assets. 2. They are unique cryptographic tokens that exist on a blockchain. 3. They can be traded or exchanged at equivalency and therefore can be used as a medium of commercial transactions. Which of the statements given above are correct?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1,2 and 3
Show answer
Correct answer: A. 1 and 2 only

NFTs are unique blockchain tokens that can represent an asset, but being non-fungible they cannot be swapped one-for-one like money.

Q16.Science & TechnologyMedium

In which space activity is foreign direct investment allowed up to 100 per cent through the automatic route?

  1. A.Launch vehicles and spaceports
  2. B.Satellite operation and data products
  3. C.Manufacturing of components and sub-systems
  4. D.No space activity is open to 100 per cent automatic investment
Show answer
Correct answer: C. Manufacturing of components and sub-systems

Under the policy amended in 2024, the manufacture of components, systems and sub-systems for satellites and for the ground and user segment is open to foreign direct investment up to 100 per cent through the automatic route, the most liberal of the three groups, because it is a manufacturing activity…

Q17.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2023, GS Paper IMedium

'Microsatellite DNA' is used in the case of which one of the following?

  1. A.Studying the evolutionary relationships among various species of fauna
  2. B.Stimulating 'stem cells' to transform into diverse functional tissues
  3. C.Promoting clonal propagation of horticultural plants
  4. D.Assessing the efficacy of drugs by conducting series of drug trials in a population
Show answer
Correct answer: A. Studying the evolutionary relationships among various species of fauna

Microsatellites are genetic markers that show how closely related individuals, populations and species are. Microsatellites, also called short tandem repeats (STRs) or simple sequence repeats, are stretches of DNA in which a short motif of one to six bases, such as CA, is repeated many times.

Q18.Science & TechnologyAsked in: CDS · CDS-I 2024, GKMedium

The Giant Metrewave Radio Telescope consists of

  1. A.a single parabolic antenna
  2. B.multiple parabolic antennas
  3. C.multiple circular antennas
  4. D.a combination of circular and parabolic antennas
Show answer
Correct answer: B. multiple parabolic antennas

The Giant Metrewave Radio Telescope (GMRT) is an array of 30 fully steerable parabolic dish antennas, each 45 metres across.

Q19.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IHard

According to India's National Policy on Biofuels, which of the following can be used as raw materials for the production of biofuels ? 1. Cassava 2. Damaged wheat grains 3. Groundnut seeds 4. Horse gram 5. Rotten potatoes 6. Sugar beet Select the correct answer using the code given below:

  1. A.1, 2, 5 and 6 only
  2. B.1, 3, 4 and 6 only
  3. C.2, 3, 4 and 5 only
  4. D.1, 2, 3, 4, 5 and 6
Show answer
Correct answer: A. 1, 2, 5 and 6 only

The policy allows cassava, damaged wheat, rotten potatoes and sugar beet, but not groundnut seeds or horse gram. The National Policy on Biofuels, 2018 widened the raw materials for ethanol beyond sugarcane molasses.

Q20.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IMedium

What is the purpose of 'evolved Laser Interferometer Space Antenna (eLISA)' project ?

  1. A.To detect neutrinos
  2. B.To detect gravitational waves
  3. C.To detect the effectiveness of missile defence system
  4. D.To study the effect of solar flares on our communication systems
Show answer
Correct answer: B. To detect gravitational waves

eLISA is a planned space observatory of the European Space Agency that will use laser interferometry between spacecraft to catch gravitational waves.

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