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203 PYQs · Asked in 16 of 16 years · Free practice

PYQs on Science & Technology

11 PYQs from 2020
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Prelims 2020

11 questions
Science & TechnologyGenetics and BiotechnologyGene Editing, Gene Therapy and Genetic EngineeringEasy (editorial estimate)
Question details
Type:
Single choice
Skill:
Fact recall
Tags:
pronuclear transfer · Gene Editing, Gene Therapy and Genetic Engineering
Related topics:
Genetics, Heredity and Gene Expression

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q37

Prelims 2020, question 37: Gene Editing, Gene Therapy and Genetic Engineering

In the context of recent advances in human reproductive technology, "Pronuclear Transfer" is used for

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Science & TechnologyComputing, AI and Digital TechnologiesArtificial Intelligence, Machine Learning and Deep LearningMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Fact recall
Tags:
AI applications · Artificial Intelligence, Machine Learning and Deep Learning
Related topics:
Medical Devices, Imaging and Digital Health

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q38

Prelims 2020, question 38: Artificial Intelligence, Machine Learning and Deep Learning

With the present state of development, Artificial Intelligence can effectively do which of the following? 1. Bring down electricity consumption in industrial units 2. Create meaningful short stories and songs 3. Disease diagnosis 4. Text-to-Speech Conversion 5. Wireless transmission of electrical energy Select the correct answer using the code given below:

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Science & TechnologyCommunication, Electronics and Quantum TechnologyOptical Fibre and Data TransmissionMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Fact recall
Tags:
Visible Light Communication · Optical Fibre and Data Transmission
Related topics:
Optics, Lasers and Photonics

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q39

Prelims 2020, question 39: Optical Fibre and Data Transmission

With reference to Visible Light Communication (VLC) technology, which of the following statements are correct? 1. VLC uses electromagnetic spectrum wavelengths 375 to 780 nm. 2. VLC is known as long-range optical wireless communication. 3. VLC can transmit large amounts of data faster than Bluetooth. 4. VLC has no electromagnetic interference. Select the correct answer using the code given below:

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Science & TechnologyComputing, AI and Digital TechnologiesBlockchain and Distributed Ledger TechnologiesMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Fact recall
Tags:
blockchain ledger · Blockchain and Distributed Ledger Technologies

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q40

Prelims 2020, question 40: Blockchain and Distributed Ledger Technologies

With reference to "Blockchain Technology", consider the following statements: 1. It is a public ledger that everyone can inspect, but which no single user controls. 2. The structure and design of blockchain is such that all the data in it are about cryptocurrency only. 3. Applications that depend on basic features of blockchain can be developed without anybody's permission. Which of the statements given above is/are correct?

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Science & TechnologyChemistry and Materials ScienceNanotechnology, Composites and Advanced MaterialsMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Fact recall
Tags:
carbon nanotube applications · Nanotechnology, Composites and Advanced Materials
Related topics:
Therapeutics, Biologics and Monoclonal Antibodies

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q41

Prelims 2020, question 41: Nanotechnology, Composites and Advanced Materials

With reference to carbon nanotubes, consider the following statements: 1. They can be used as carriers of drugs and antigens in the human body. 2. They can be made into artificial blood capillaries for an injured part of human body. 3. They can be used in biochemical sensors. 4. Carbon nanotubes are biodegradable. Which of the statements given above are correct?

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Science & TechnologyComputing, AI and Digital TechnologiesRobotics, Automation and Autonomous SystemsMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Connecting topics
Tags:
drone applications · Robotics, Automation and Autonomous Systems
Related topics:
Digital Agriculture, Drones and Precision Advisory · Military Aviation, UAVs and Aerospace Platforms

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q42

Prelims 2020, question 42: Robotics, Automation and Autonomous Systems

Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouting whales for DNA analysis At the present level of technology, which of the above activities can be successfully carried out by using drones?

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Science & TechnologySpace Science and Space ProgrammesAstronomy, Cosmology and AstrophysicsMedium (editorial estimate)
Question details
Type:
Single choice
Skill:
Fact recall
Tags:
space gravitational-wave observatory · Astronomy, Cosmology and Astrophysics

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q43

Prelims 2020, question 43: Astronomy, Cosmology and Astrophysics

"The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft." The experiment in question refers to

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Science & TechnologyGenetics and BiotechnologyGene Editing, Gene Therapy and Genetic EngineeringMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Connecting topics
Tags:
germline editing and stem cells · Gene Editing, Gene Therapy and Genetic Engineering
Related topics:
Stem Cells, Tissue Engineering and Regenerative Medicine · Biosafety, Research Ethics and Emerging-Technology Governance

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q44

Prelims 2020, question 44: Gene Editing, Gene Therapy and Genetic Engineering

Consider the following statements: 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2. A person's genome can be edited before birth at the early embryonic stage. 3. Human induced pluripotent stem cells can be injected into the embryo of a pig. Which of the statements given above is/are correct?

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Science & TechnologyHealth, Diseases and Medical TechnologyImmunity, Vaccines and ImmunisationMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Fact recall
Tags:
pneumococcal conjugate vaccines · Immunity, Vaccines and Immunisation
Related topics:
Bacterial, Fungal and Parasitic Diseases

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q45

Prelims 2020, question 45: Immunity, Vaccines and Immunisation

What is the importance of using Pneumococcal Conjugate Vaccines in India? 1. These vaccines are effective against pneumonia as well as meningitis and sepsis. 2. Dependence on antibiotics that are not effective against drug-resistant bacteria can be reduced. 3. These vaccines have no side effects and cause no allergic reactions. Select the correct answer using the code given below:

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Science & TechnologyComputing, AI and Digital TechnologiesCybersecurity, Encryption and Digital SafetyEasy (editorial estimate)
Question details
Type:
Single choice
Skill:
Fact recall
Tags:
Public Key Infrastructure · Cybersecurity, Encryption and Digital Safety
Related topics:
Cybersecurity, Data Security and Critical Infrastructure

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q46

Prelims 2020, question 46: Cybersecurity, Encryption and Digital Safety

In India, the term "Public Key Infrastructure" is used in the context of

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Science & TechnologyBiology and Human PhysiologyCell Biology and BiomoleculesMedium (editorial estimate)
Question details
Type:
Statement based
Skill:
Fact recall
Tags:
plant and animal cells · Cell Biology and Biomolecules

Classification and difficulty are editorial labels. Explanations are awaiting review.

2020 · Q47

Prelims 2020, question 47: Cell Biology and Biomolecules

Which of the following statements are correct regarding the general difference between plant and animal cells? 1. Plant cells have cellulose cell walls whilst animal cells do not. 2. Plant cells do not have plasma membrane unlike animal cells which do. 3. Mature plant cell has one large vacuole whilst animal cell has many small vacuoles. Select the correct answer using the code given below:

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