Science & Technology UPSC PYQ 2017

Question 1

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?

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Answer

1 only

Answer

2 and 3 only

Answer

1 and 3 only

Answer

1, 2 and 3

Question 2

What is the application of Somatic Cell Nuclear Transfer Technology?

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Answer

Production of biolarvicides

Answer

Manufacture of biodegradable plastics

Answer

Reproductive cloning of animals

Answer

Production of organisms free of diseases

Question 3

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:

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Answer

1 and 2 only

Answer

2 and 3 only

Answer

3 only

Answer

1, 2 and 3

	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

16 more Science & Technology 2017 questions await