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UPSC 2017 Science & Tech PYQ Solved

12 Science & Tech questions from UPSC 2017 Prelims GS Paper 1 — solved with answers

12
Questions
67%
Trap Rate
Common Misconception
Top Trap
Q10moderateSimilar Sounding
Which of the following statements is/are correct regarding Smart India Hackathon 2017 ? 1. It is a centrally sponsored scheme for developing every city of our country into Smart Cities in a decade. 2. It is an initiative to identify new digital technology innovations for solving the many problems faced by our country. 3. It is a programme aimed at making all the financial transactions in our country completely digital in a decade. Select the correct answer using the code given below :
(a) 1 and 3 only
(b) 2 only
(c) 3 only
(d) 2 and 3 only
Answer: (b)
Trap Analysis
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Q22moderateCommon Misconception
It is possible to produce algae based biofuels, but what is/are the likely limitation(s) of developing countries in promoting this industry ? 1. Production of algae based biofuels is possible in seas only and not on continents. 2. Setting up and engineering the algae based biofuel production requires high level of expertise/technology until the construction is completed. 3. Economically viable production necessitates the setting up of large scale facilities which may raise ecological and social concerns. Select the correct answer using the code given below :
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
Answer: (b)
Trap Analysis
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Q28easyCommon Misconception
Consider the following statements : 1. The Nuclear Security Summits are periodically held under the aegis of the United Nations. 2. The International Panel on Fissile Materials is an organ of International Atomic Energy Agency. 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)
Trap Analysis
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Q31moderateCommon Misconception
Consider the following statements : 1. In tropical regions, Zika virus disease is transmitted by the same mosquito that transmits dengue. 2. Sexual transmission of Zika virus disease is possible. 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: (c)
Trap Analysis
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Q44easy
The terms 'Event Horizon', 'Singularity', 'String Theory' and 'Standard Model' are sometimes seen in the news in the context of
(a) Observation and understanding of the Universe
(b) Study of the solar and the lunar eclipses
(c) Placing satellites in the orbit of the Earth
(d) Origin and evolution of living organisms on the Earth
Answer: (a)
Q45moderateAbsolute Qualifier
With reference to agriculture in India, how can the technique of 'genome sequencing', often seen in the news, be used in the immediate future ? 1. Genome sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants. 2. This technique helps in reducing the time required to develop new varieties of crop plants. 3. It can be used to decipher the host-pathogen relationships in crops. Select the correct answer using the code given below :
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: (d)
Trap Analysis
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Q68easyOutdated Info
Consider the following in respect of Indian Ocean Naval Symposium (IONS) : 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indian Navy. 2. IONS is a voluntary initiative that seeks to increase maritime co-operation among navies of the littoral states of the Indian Ocean Region. Which of the above statements is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Answer: (b)
Trap Analysis
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Q73moderateCommon Misconception
Consider the following pairs : Commonly used / consumed materials — Unwanted or controversial chemicals likely to be found in them 1. Lipstick — Lead 2. Soft drinks — Brominated vegetable oils 3. Chinese fast food — Monosodium glutamate Which of the pairs given above is/are correctly matched ?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: (d)
Trap Analysis
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Q74easy
Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of OLED displays over Liquid Crystal displays ? 1. OLED displays can be fabricated on flexible plastic substrates. 2. Roll-up displays embedded in clothing can be made using OLEDs. 3. Transparent displays are possible using OLEDs. Select the correct answer using the code given below :
(a) 1 and 3 only
(b) 2 only
(c) 1, 2 and 3
(d) None of the above statements is correct
Answer: (c)
Q78easy
What is the application of Somatic Cell Nuclear Transfer Technology ?
(a) Production of biolarvicides
(b) Manufacture of biodegradable plastics
(c) Reproductive cloning of animals
(d) Production of organisms free of diseases
Answer: (c)
Q85moderateAbsolute Qualifier
In India, it is legally mandatory for which of the following to report on cyber security incidents ? 1. Service providers 2. Data centres 3. Body corporate 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: (d)
Trap Analysis
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Q87easy
What is the purpose of 'evolved Laser Interferometer Space Antenna (eLISA)' project ?
(a) To detect neutrinos
(b) To detect gravitational waves
(c) To detect the effectiveness of missile defence system
(d) To study the effect of solar flares on our communication systems
Answer: (b)