2020
Science & Technology
Subject Collection
UPSC Prelims 2020 Science & Technology
Science & Technology PYQs for UPSC Prelims 2020.
2020
Science & Technology
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 mem...
2020
Science & Technology
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 wire...
2020
Science & Technology
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...
2020
Science & Technology
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 th...
2020
Science & Technology
In India, why are some nuclear reactors kept under “IAEA Safeguards” while others are not?
2020
Science & Technology
In India, the term “Public Key Infrastructure” is used in the context of
2020
Science & Technology
“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 questi...
2020
Science & Technology
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...
2020
Science & Technology
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 techn...
2020
Science & Technology
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...
2020
Science & Technology
Steel slag can be the material for which of the following? 1. Construction of base road 2. Improvement of agricultural soil 3. Production of cement Select the correct answer using the code given below:
2020
Science & Technology