Home › UPSC CSE Prelims › 2022 › Science & Technology
UPSC CSE Prelims 2022 — Science & Technology Questions with Answers
All 15 Science & Technology previous-year questions from UPSC CSE Prelims 2022, each with the correct answer and a full explanation. Practise them as a free, timed mock test with instant scoring.
Practice Science & Technology as a timed test →- Q1.Science & Technology
Consider the following : 1. AarogyaSetu 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
- Q2.Science & Technology
With reference to Web 3.0, consider the following statements: 1. Web 3.0 technology enables people to control their own data. 2. In Web 3.0 world, there can be blockchain based social networks. 3. 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
- Q3.Science & Technology
With reference to “Software as a Service (SaaS)”, consider the following statements: 1. SaaS buyers can customise the user interface and can change data fields. 2. SaaS users can access their data through their mobile devices. 3. 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
- Q4.Science & Technology
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 explodes 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.’
- Q5.Science & Technology
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
- Q6.Science & Technology
Consider the following communication technologies: 1. Closed-circuit Television 2. Radio Frequency Identification 3. 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
- Q7.Science & Technology
Consider the following statements: 1. Biofilms can form on medical implants within human tissues. 2. Biofilms can form on food and food processing surfaces. 3. 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
- Q8.Science & Technology
Consider the following statements in respect of probiotics: 1. Probiotics are made of both bacteria and yeast. 2. The organisms in probiotics are found in foods we ingest but they do not “naturally occur in our gut. 3. 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
- Q9.Science & Technology
In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements: 1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform. 2. Sputnik V vaccine is manufactured using vector based platform. 3. 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 18
- Q10.Science & Technology
If a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems could fail. 2. Tsunamis could occur at equatorial regions. 3. Power grids could be damaged. 4. Intense auroras could occur over much of the Earth. 5. Forest fires could take place over much of the planet. 6. Orbits of the satellites could be disturbed. 7. 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
- Q11.Science & Technology
With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements: 1. Its fibres can be blended with wool and cotton fibres to reinforce their properties. 2. Containers made of it can be used to store any alcoholic beverage. 3. Bottles made of it can be recycled into other products. 4. Articles made of it can be easily disposed of by incineration without causing greenhouse gas emmisions. Which of the statements given above are correct?
- a)1 and 3
- b)2 and 4
- c)1 and 4
- d)2 and 3
- Q12.Science & Technology
Certain species of which one of the following organisms are well known as cultivators of fungi?
- a)Ant
- b)Cockroach
- c)Crab
- d)Spider
- Q13.Science & Technology
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 immune-suppressants in the body.
- d)They protect the body from the diseases caused by pathogens.
- Q14.Science & Technology
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?
- a)1 only
- b)3 only
- c)1 and 2
- d)2 and 3
- Q15.Science & Technology
Consider the following statements: DNA Barcoding can be a tool to: 1. Assess the age of a plant or animal. 2. Distinguish among species that look alike. 3. 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
UPSC CSE Prelims 2022 — other subjects
Science & Technology — other years
Ready to test yourself on UPSC CSE Prelims 2022?
Start the timed mock free →