Science & technology: practice set 4

Consider the following statements with regard to involvement of private entities in India’s space programme:

1. 1.The Indian National Space Promotion and Authorisation Centre (IN-SPACe) is an autonomous agency formed to facilitate participation of private entities.
2. 2.Agnikul Cosmos launched the world’s first flight using 3D-printed rocket engine.
3. 3.Skyroot Aerospace has developed liquid fuel for GSLV.

Which of the statements given above is/are correct?

The Bureau of Indian Standard (BIS) recently introduced a national standard to test and assess bomb disposal system. Which of the following statements with regard to this system is/are correct?

1. 1.The new standard is known as IS 19445: 2025.
2. 2.It will improve interoperability of equipment across agencies.
3. 3.It was developed by TBRL, DRDO in collaboration with the 30th Central Scientific Research Institute, Russia.

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Which of the following statements about Real-World Assets (RWA) Tokenization are correct?

1. 1.Tokenization is the process of turning real world assets into digital tokens using blockchain technology.
2. 2.Tokenization of real world assets offers 24 × 7 access, promoting financial inclusion.
3. 3.Tokenization of real world assets will allow the access to high growth investment opportunities for individuals in India.

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With reference to monoclonal antibodies, often mentioned in news, consider the following statements:

1. I.They are man-made proteins.
2. II.They stimulate immunological function due to their ability to bind to specific antigens.
3. III.They are used in treating viral infections like that of Nipah virus.

Which of the statements given above are correct?

Consider the following statements:

1. Statement-I: Giant stars live much longer than dwarf stars.
2. Statement-II: Compared to dwarf stars, giant stars have a greater rate of nuclear reactions.

Which one of the following is correct in respect of the above statements?

In which of the following are hydrogels used?

1. 1.Controlled drug delivery in patients
2. 2.Mobile air-conditioning systems
3. 3.Preparation of industrial lubricants

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Which one of the following words/phrases is most appropriately used to denote "an interoperable network of 3D virtual worlds that can be accessed simultaneously by millions of users, who can exert property rights over virtual items"?

Consider the following statements:

1. 1.Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight.
2. 2.Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile.

Which of the statements given above is/are correct?

Which one of the following is the context in which the term "qubit" is mentioned?

Consider the following statements:

1. 1.Biofilms can form on medical implants within human tissues.
2. 2.Biofilms can form on food and food processing surfaces.
3. 3.Biofilms can exhibit antibiotic resistance.

Which of the statements given above are correct?

With reference to recent developments regarding ‘Recombinant Vector Vaccines’, consider the following statements:

1. 1.Genetic engineering is applied in the development of these vaccines.
2. 2.Bacteria and viruses are used as vectors.

Which of the statements given above is/are correct?

Consider the following statements:

1. 1.Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes.
2. 2.Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.

Which of the statements given above is/are correct?

Which one of the following is a reason why astronomical distances are measured in light-years?

With reference to Visible Light Communication (VLC) technology, which of the following statements are correct?

1. 1.VLC uses electromagnetic spectrum wavelengths 375 to 780 nm.
2. 2.VLC is known as long-range optical wireless communication.
3. 3.VLC can transmit large amounts of data faster than Bluetooth.
4. 4.VLC has no electromagnetic interference.

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For the measurement/estimation of which of the following are satellite images/remote sensing data used?

1. 1.Chlorophyll content in the vegetation of a specific location
2. 2.Greenhouse gas emissions from rice paddies of a specific location
3. 3.Land surface temperatures of a specific location

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With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?

1. 1.LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
2. 2.LTE is data-only technology and VoLTE is voice-only technology.

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With reference to the recent developments in science, which one of the following statements is not correct?

Which one of the following statements is not correct?

The identity platform 'Aadhaar' provides open "Application Programming Interfaces (APIs)". What does it imply?

1. 1.It can be integrated into any electronic device.
2. 2.Online authentication using iris is possible.

Which of the statements given above is/are correct?

“3D printing” has applications in which of the following?

1. 1.Preparation of confectionery items
2. 2.Manufacture of bionic ears
3. 3.Automotive industry
4. 4.Reconstructive surgeries
5. 5.Data processing technologies

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It is possible to produce algae based biofuels, but what is/are the likely limitation(s) of developing countries in promoting this industry?

1. 1.Production of algae based biofuels is possible in seas only and not on continents.
2. 2.Setting up and engineering the algae based biofuel production requires high level of expertise/technology until the construction is completed.
3. 3.Economically viable production necessitates the setting up of large scale facilities which may raise ecological and social concerns.

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The terms ‘Event Horizon’, ‘Singularity’, ‘String Theory’ and ‘Standard Model’ are sometimes seen in the news in the context of

What is the application of Somatic Cell Nuclear Transfer Technology?

With reference to 'Bitcoins', sometimes seen in the news, which of the following statements is/are correct?

1. 1.Bitcoins are tracked by the Central Banks of the countries.
2. 2.Anyone with a Bitcoin address can send and receive Bitcoins from anyone else with a Bitcoin address.
3. 3.Online payments can be sent without either side knowing the identity of the other.

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