2025
Q1. Consider the following types of vehicles:
I. Full battery electric vehicles
II. Hydrogen fuel cell vehicles
III. Fuel cell-electric hybrid vehicles
How many of the above are considered as alternative powertrain vehicles?
(a) Only one
(b) Only two
(c) All the three
(d) None
Answer -c
Q2. With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements:
I. All types of UAVs can do vertical landing.
II. All types of UAVs can do automated hovering.
III.All types of UAVs can use battery only as a source of power supply.
How many of the statements given above are correct?
(a) Only one
(b) Only two
(c) All the three
(d) None
Answer- d
Q3. In the context of electric vehicle batteries, consider the following elements:
I. Cobalt
II. Graphite
III. Lithium
IV. Nickel
How many of the above usually make up battery cathodes?
(a) Only one
(b) Only two
(c) Only three
(d) All the four
Answer- c
Q4. What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?
(a) These are alternatives to hydrofluorocarbon refrigerants
(b) These are explosives in military weapons
(c) These are high-energy fuels for cruise missiles
(d) These are fuels for rocket propulsion
Answer-b
Q5. Consider the following statements:
I. It is expected that Majorana 1 chip will enable quantum computing.
II. Majorana 1 chip has been introduced by Amazon Web Services (AWS).
III. Deep learning is a subset of machine learning.
Which of the statements given above are correct?
(a) I and II only
(b) II and III only
(c) I and III only
(d) I, II and III
Answer-c
Q6. With reference to monoclonal antibodies, often mentioned in news, consider the following statements:
I. They are man-made proteins.
II. They stimulate immunological function due to their ability to bind to specific antigens.
III. They are used in treating viral infections like that of Nipah virus.
Which of the statements given above are correct?
(a) I and II only
(b) II and III only
(c) I and III only
(d) I, II and III
Answer-d
Q7. Consider the following statements:
I. No virus can survive in ocean water.
II. No virus can infect bacteria.
III. No virus can change the cellular transcriptional activity in host cells.
How many of the statements given above are correct?
(a) Only one
(b) Only two
(c) All the three
(d) None
Answer-d
Q8. Consider the following statements:
Statement I: Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions.
Statement II: Silica-bearing clay is mixed with limestone while manufacturing cement.
Statement III: Limestone is converted into lime during clinker production for cement manufacturing.
Which one of the following is correct in respect of the above statements?
(a) Both Statement II and Statement III are correct and both of them explain Statement I
(b) Both Statement II and Statement III are correct but only one of them explains Statement I
(c) Only one of the Statements II and Statement III is correct and that explain statement t I
(d) Neither Statement II nor Statement III is correct
Answer-b
Q9. GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are correct in respect of GAGAN?
I. It is designed to provide additional accuracy and integrity.
II. It will allow more uniform and high quality air traffic management.
III. It will provide benefits only in aviation but not in other modes of transportation.
Select the correct answer using the code given below.
(a) I, II and III
(b) I only
(c) II and III only
(d) I and II only
Answer d
Q10. Consider the following statements regarding AI Action Summit held in Grand Palais, Paris in February 2025:
I. Co-chaired with India, the event builds on the advances made at the Bletchley Park Summit held in 2023 and the Seoul Summit held in 2024.
II. Along with other countries, the US and UK also signed the declaration on inclusive and sustainable AI.
Which of the statements given above is/are correct?
(a) I only
(b) II only
(c) Both I and I
(d) Neither I nor II
Answer – A
Q11. Consider the following statements:
Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors.
Statement II: Some rare earth elements have phosphorescent properties.
Which one of the following is correct?
(a) Both are correct and II explains I
(b) Both are correct but II does not explain I
(c) Only I is correct
(d) Only II is correct
Answer- a
12. Consider the following space missions:
I. Axiom-4
II. SpaDeX
III. Gaganyaan
How many of the space missions given above encourage and support microgravity research?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer- c
Q13. With reference to India’s defence, consider the following pairs:
| Aircraft Type | Description |
| I. Dornier-228 | Maritime patrol aircraft |
| II. IL-76 | Supersonic combat aircraft |
| III. C-17 Globemaster III | Military transport aircraft |
How many of the pairs are correctly matched?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer-b
Q14. Consider the following:
I. Cigarette butts
II. Eyeglass lenses
III. Car tyres
How many of them contain plastic?
(a) Only one
(b) Only two
(c) All the three
(d) None
Answer-C
Q.15 Consider the following substances:
I. Ethanol
II. Nitroglycerine
III. Urea
Coal gasification technology can be used in the production of how many of them?
(a) Only one
(b) Only two
(c) All the three
(d) None
Answer-b
2024
Q1. With reference to radioisotope thermoelectric generators (RTGs), consider the following statements:
1. RTGs are miniature fission reactors.
2. RTGs are used for powering the onboard systems of spacecraft.
3. RTGs can use Plutonium-238, which is a by-product of weapons development.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: b
Q2. Consider the following statements:
Statement I: Giant stars live much longer than dwarf stars.
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?
(a) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
(b) Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
(c) Statement I is correct, but Statement II is incorrect
(d) Statement I is incorrect, but Statement II is correct
Answer: d
Q3. Which one of the following is synthesised in the human body that dilates blood vessels and increases blood flow?
(a) Nitric oxide
(b) Nitrous oxide
(c) Nitrogen dioxide
(d) Nitrogen pentoxide
Answer : a
Q4. Consider the following activities:
1. Identification of narcotics on passengers at airports or in aircraft
2. Monitoring of precipitation
3. Tracking the migration of animals
In how many of the above activities can the radars be used?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: b
Q5. Consider the following aircraft:
1. Rafael
2. MiG-29
3. Tejas MK-1
How many of the above are considered fifth-generation fighter aircraft?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: d
Q6. In which of the following are hydrogels used?
1. Controlled drug delivery in patients
2. Mobile air-conditioning systems
3. Preparation of industrial lubricants
Select the correct answer using the code given below:
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Ans: a
Q7. 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”?
(a) Big data analytics
(b) Cryptography
(c) Metaverse
(d) Virtual matrix
Answer: c
Q.8 – Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen?
(a) Hydrogen peroxide
(b) Hydronium
(c) Oxygen
(d) Water vapour
Answer-d
Q.9- Recently, the term “pumped-storage hydropower” is actually and appropriately discussed in the context of which one of the
following?
(a) Irrigation of terraced crop fields
(b) Lift irrigation of cereal crops
(c) Long duration energy storage
(d) Rainwater harvesting system
Answer-c
Q.10- “Membrane Bioreactors” are often discussed in the context of :
(a) Assisted reproductive technologies
(b) Drug delivery nanotechnologies
(c) Vaccine production technologies
(d) Wastewater treatment technologies
Answer-d
Q.11-Consider the following plants
How many of the above belong to the pea family?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer-c
2023
Q1. Consider the following:
- Aerosols
- Foam agents
- Fire retardants
- Lubricants
In the making of how many of the above are hydrofluorocarbons used?
(a)Only one
(b)Only two
(c)Only three
(d)All four
Answer: c
Q2. ‘Wolbachia method’ is sometimes talked about with reference to which one of the following?
(a)Controlling the viral diseases spread by mosquitoes
(b)Converting crop residues into packing material
(c)Producing biodegradable plastics
(d)Producing biochar from thermo-chemical conversion of biomass
Answer: a
Q3. ‘Aerial metagenomics’ best refers to which one of the following situations?
(a)Collecting DNA samples from air in a habitat at one go
(b)Understanding the genetic makeup of avian species of a habitat
(c)Using air-bome devices to collect blood samples from moving animals
(d)Sending drones to inaccessible areas to collect plant and animal samples from land surfaces and water bodies
Answer: a
Q4. ‘Microsatellite DNA’ is used in the case of which one of the following?
(a)Studying the evolutionary relationships among various species of fauna
(b)Stimulating ‘stem cells’ to transform into diverse functional tissues
(c)Promoting clonal propagation of horticultural plants
(d)Assessing the efficacy of drugs by conducting series of drug trials in a population”
Answer: a
Q5. Consider the following statements :
- Carbon fibres are used in the manufacture of components used in automobiles and aircraftes.
- Carbon fibres once used cannot be recycled. Which of the statements give above is/are correct?
(a)1 only
(b)2 only
Both 1 and 2
(c)Neither 1 nor 2
Answer: a
Q6. Consider the following actions :
- Detection of car crash/collision which results in the deployment of airbags almost instantaneously.
- Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive
- Detection of the tit of smartphone which results in the rotation of display between portrait and landscape mode
In how many of the above action is the function of accelerometer required?
(a)Only one
(b)Only two
(d)All three
(d)None
Answer: c
Q7. Consider the following pairs :
Objects in space – Description
- Cepheids – Giant clouds of dust and gas in space
- Nebulae – Stars which brighten and dim periodically
- Pulsars – Neutron stars that are formed when massive stars run out of fuel and collapse
How many of the above pairs are correctly matched?
(a)Only one
(b)Only two
(c)All three
(d)None
Answer: a
Q8. Which one of the following countries has its own Satellite Navigation System?
(a)Australia
(b)Canada
(c)Israel
(d)Japan
Answer: d
Q9. Consider the following statements :
- Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocketpowered only in the initial phase of flight.
- 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?
(a)1 only
(b)2 only
(c)Both 1 and 2
(d)Neither 1 nor 2
Answer: d
2022
Q1. Which one of the following statements best describes the role of B cells and T cells in the human body?
(a)They protect the body from environmental allergens.
(b)They alleviate the body’s pain and inflammation.
(c)They act as immunosuppressants in the body.
(d)They protect the body from the diseases caused by pathogens.
Answer: d
Q2. Consider the following statements:
- Other than those made by humans, nanoparticles do not exist in nature.
- Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.
- Nanoparticles of some commercial products which enter the environment are unsafe for humans.
Which of the statements given above is/are correct?
(a)1 only
(b)3 only
(c)1 and 2
(d)2 and 3
Answer: d
Q3. Consider the following statements :
DNA Barcoding can be a tool to:
- assess the age of a plant or animal.
- distinguish among species that look alike.
- identify undesirable animal or plant materials in processed foods. Which of the statements given above is/are correct?
(a)1 only
(b)3 only
(c)1 and 2
(d)2 and 3
Answer: d
Q4. With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements:
- Its fibres can be blended with wool and cotton fibres to reinforce their properties.
- Containers made of it can be used to store any alcoholic beverage.
- Bottles made of it can be recycled into other products.
- Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions.
Which of the statements given above are correct?
(a)1 and 3
(b)2 and 4
(c)1 and 4
(d)2 and 3
Answer: a
Q5. With reference to Web 3.0, consider the following statements:
- Web 3.0 technology enables people to control their own data.
- In Web 3.0 world, there can blockchain based social networks.
- Web 3.0 is operated by users collectively rather than a corporation. Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q6. With reference to “”Software as a Service (SaaS)””, consider the following statements:
- SaaS buyers can customise the user interface and can change data fields.
- SaaS users can access their data through their mobile devices.
- Outlook, Hotmail and Yahoo! Mail are forms of SaaS. Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q7. Which one of the following statements best reflects the idea behind the “”Fractional Orbital Bombardment System”” often talked about in media?
(a)A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.
(b)A spacecraft lands on another planet after making several orbital motions.
(c)A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.
(d)A spacecraft moves along a comet with the same speed and places a probe on its surface.
Answer: c
Q8. Which one of the following is the context in which the term “”qubit”” is mentioned?
(a)Cloud Services
(b)Quantum Computing
(c)Visible Light Communication Technologies
(d)Wireless Communication Technologies
Answer: b
Q9. Consider the following communication technologies:
- Closed-circuit Television
- Radio Frequency Identification
- Wireless Local Area Network
Which of the above are considered Short-Range devices/technologies?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q10. Consider the following statements:
- Biofilms can form on medical implants within human tissues.
- Biofilms can form on food and food processing surfaces.
- Biofilms can exhibit antibiotic resistance.
Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q11. Consider the following statements in respect of probiotics:
- Probiotics are made of both bacteria and yeast.
- The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut.
- Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct?
(a)1 only
(b)2 only
(c)1 and 3
(d)2 and 3
Answer: c
Q12. In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements:
- The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform.
- Sputnik V vaccine is manufactured using vector based platform.
- COVAXIN is an inactivated pathogen based vaccine. Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: b
Q13. If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth?
- GPS and navigation systems could fail.
- Tsunamis could occur at equatorial regions.
- Power grids could be damaged.
- Intense auroras could occur over much of the Earth.
- Forest fires could take place over much of the planet.
- Orbits of the satellites could be disturbed.
- Shortwave radio communication of the aircraft flying over polar regions could be interrupted.
Select the correct answer using the code given below:
(a)1, 2, 4 and 5 only
(b)2, 3, 5, 6 and 7 only
(c)1, 3, 4, 6 and 7 only
(d)1, 2, 3, 4, 5, 6 and 7
answer: c
Q.14- Consider the following:
1. Carbon monoxide
2. Nitrogen oxide
3. Ozone
4. Sulphur dioxide
Excess of which of the above in the environment is/are cause(s) of acid rain?
(a) 1, 2 and 3
(b) 2 and 4 only
(c) 4 only
(d) 1, 3 and 4
Answer- b
Q.15- Consider the following:
1. Aarogya Setu
2. CoWIN
3. DigiLocker
4. DIKSHA
Which of the above are built on top of open-source digital platforms?
(a) 1 and 2 only
(b) 2, 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
Answer-d
Q.16 – Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?
(a) Cotton
(b) Rice
(c) Sugarcane
(d) Wheat
Answer-b
2021
Q1. Which one of the following statements best describes the role of B cells and T cells in the human body?
(a)They protect the body from environmental allergens.
(b)They alleviate the body’s pain and inflammation.
(c)They act as immunosuppressants in the body.
(d)They protect the body from the diseases caused by pathogens.
Answer: d
Q2. Consider the following statements:
- Other than those made by humans, nanoparticles do not exist in nature.
- Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.
- Nanoparticles of some commercial products which enter the environment are unsafe for humans.
Which of the statements given above is/are correct?
(a)1 only
(b)3 only
(c)1 and 2
(d)2 and 3
Answer: d
Q3. Consider the following statements :
DNA Barcoding can be a tool to:
- assess the age of a plant or animal.
- distinguish among species that look alike.
- identify undesirable animal or plant materials in processed foods. Which of the statements given above is/are correct?
(a)1 only
(b)3 only
(c)1 and 2
(d)2 and 3
Answer: d
Q4. With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements:
- Its fibres can be blended with wool and cotton fibres to reinforce their properties.
- Containers made of it can be used to store any alcoholic beverage.
- Bottles made of it can be recycled into other products.
- Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions.
Which of the statements given above are correct?
(a)1 and 3
(b)2 and 4
(c)1 and 4
(d)2 and 3
Answer: a
Q5. With reference to Web 3.0, consider the following statements:
- Web 3.0 technology enables people to control their own data.
- In Web 3.0 world, there can blockchain based social networks.
- Web 3.0 is operated by users collectively rather than a corporation. Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q6. With reference to “”Software as a Service (SaaS)””, consider the following statements:
- SaaS buyers can customise the user interface and can change data fields.
- SaaS users can access their data through their mobile devices.
- Outlook, Hotmail and Yahoo! Mail are forms of SaaS. Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q7. Which one of the following statements best reflects the idea behind the “”Fractional Orbital Bombardment System”” often talked about in media?
(a)A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.
(b)A spacecraft lands on another planet after making several orbital motions.
(c)A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.
(d)A spacecraft moves along a comet with the same speed and places a probe on its surface.
Answer: c
Q8. Which one of the following is the context in which the term “”qubit”” is mentioned?
(a)Cloud Services
(b)Quantum Computing
(c)Visible Light Communication Technologies
(d)Wireless Communication Technologies
Answer: b
Q9. Consider the following communication technologies:
- Closed-circuit Television
- Radio Frequency Identification
- Wireless Local Area Network
Which of the above are considered Short-Range devices/technologies?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q10. Consider the following statements:
- Biofilms can form on medical implants within human tissues.
- Biofilms can form on food and food processing surfaces.
- Biofilms can exhibit antibiotic resistance.
Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q11. Consider the following statements in respect of probiotics:
- Probiotics are made of both bacteria and yeast.
- The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut.
- Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct?
(a)1 only
(b)2 only
(c)1 and 3
(d)2 and 3
Answer: c
Q12. In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements:
- The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform.
- Sputnik V vaccine is manufactured using vector based platform.
- COVAXIN is an inactivated pathogen based vaccine. Which of the statements given above are correct?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: b
Q13. If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth?
- GPS and navigation systems could fail.
- Tsunamis could occur at equatorial regions.
- Power grids could be damaged.
- Intense auroras could occur over much of the Earth.
- Forest fires could take place over much of the planet.
- Orbits of the satellites could be disturbed.
- Shortwave radio communication of the aircraft flying over polar regions could be interrupted.
Select the correct answer using the code given below:
(a)1, 2, 4 and 5 only
(b)2, 3, 5, 6 and 7 only
(c)1, 3, 4, 6 and 7 only
(d)1, 2, 3, 4, 5, 6 and 7
answer: c
Q.14- Consider the following:
1. Carbon monoxide
2. Nitrogen oxide
3. Ozone
4. Sulphur dioxide
Excess of which of the above in the environment is/are cause(s) of acid rain?
(a) 1, 2 and 3
(b) 2 and 4 only
(c) 4 only
(d) 1, 3 and 4
Answer- b
Q.15- Consider the following:
1. Aarogya Setu
2. CoWIN
3. DigiLocker
4. DIKSHA
Which of the above are built on top of open-source digital platforms?
(a) 1 and 2 only
(b) 2, 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
Answer-d
Q.16 – Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?
(a) Cotton
(b) Rice
(c) Sugarcane
(d) Wheat
Answer-b
2020
Q1. In India, under cyber insurance for individuals, which of the following benefits are generally covered, in addition to payment for the loss of funds and other benefits?
- Cost of restoration of the computer system in case of malware disrupting access to one’s computer
- Cost of a new computer if some miscreant wilfully damages it, if proved so
- Cost of hiring a specialized consultant to minimize the loss in case of cyber
extortion
- Cost of defence in the Court of Law if any third party files a suit Select the correct answer using the code given below:
(a)1, 2 and 4 only
(b)1, 3 and 4 only
(c)2 and 3 only
(d)1, 2, 3 and 4
Answer: b
Q2. With reference to Visible Light Communication (VLC) technology, which of the following statements are correct?
- VLC uses electromagnetic spectrum wavelengths 375 to 780 nm.
- VLC is known as long-range optical wireless communication.
- VLC can transmit large amounts of data faster than Bluetooth.
- VLC has no electromagnetic interference. Select the correct answer using the code given below:
(a)1, 2 and 3 only
(b)1, 2 and 4 only
(c)1, 3 and 4 only
(d)2, 3 and 4 only
Answer: c
Q3. With the present state of development, Artificial Intelligence can effectively do which of the following?
- Bring down electricity consumption in industrial units
- Create meaningful short stories and songs
- Disease diagnosis
- Text-to-Speech Conversion
- Wireless transmission of electrical energy Select the correct answer using the code given below:
(a)1, 2, 3 and 5 only
(b)1, 3 and 4 only
(c)2, 4 and 5 only
(d)1, 2, 3, 4 and 5
Answer: b
Q4. In the context of recent advances of human reproductive technology, “Pronuclear Transfer” is used for
(a)fertilization of egg in vitro by the donor sperm
(b)genetic modification of sperm producing cells
(c)development of stem cells into functional embryos
(d)prevention of mitochondrial diseases in off spring
Answer: d
Q5. Which of the following statements are correct regarding the general difference between plant and animal cells?
- Plant cells have cellulose cell walls whilst animal cells do not.
- Plant cells do not have plasma membranes unlike animal cells which do.
- Mature plant cell has one large vacuole whilst an animal cell has many small vacuoles.
Select the correct answer using
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: c
Q6. In India, the term “Public Key Infrastructure” is used in the context of
(a)Digital security infrastructure
(b)Food security infrastructure
(c)Health care and education infrastructure
(d)Telecommunication and transportation infrastructure
Answer: a
Q7. What is the importance of using Pneumococcal Conjugate Vaccines in India?
- These vaccines are effective against pneumonia as well as meningitis and sepsis.
- Dependence on antibiotics that are not effective against drug-resistant bacteria can be reduced.
- These vaccines have no side effects and cause no allergic reactions. Select the correct answer using the code given below:
(a)1 only
(b)1 and 2 only
(c)3 only
(d)1, 2 and 3
Answer: b
Q8. Consider the following statements:
- Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent.
- A person’s genome can be edited before birth at the early embryonic stage.
- Human induced pluripotent stem cells can be injected into the embryo of a pig.
Which of the statements given above is/are correct?
(a)1 only
(b)2 and 3 only
(c)2 only
(d)1, 2 and 3
Answer: d
Q9. “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
(a)Voyager-2
(b)New horizons
(c)Lisa Pathfinder
(d)Evolved LISA
Answer: d
Q10. Consider the following activities:
- Spraying pesticides on a crop field
- Inspecting the craters of active volcanoes
- 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?
(a)1 and 2 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
Answer: d
Q11. With reference to carbon nanotubes, consider the following statements:
- They can be used as carriers of drugs and antigens in the human body.
- They can be made into artificial blood capillaries for an injured part of the human body.
- They can be used in biochemical sensors.
- Carbon nanotubes are biodegradable. Which of the statements given above are correct?
(a)1 and 2 only
(b)2, 3 and 4 only
(c)1, 3 and 4 only
(d)1, 2, 3 and
Answer: c