A
A blended fuel composition consisting of 20% bio-ethanol and 80% conventional fossil petrol by volume.
B
An electric vehicle battery standard capable of delivering 20 kilowatts of power.
C
An emission norm allowing 20 times higher sulfur content than standard petrol.
D
A synthetic aviation turbine fuel composed of 20 hydrocarbon rings.
Correct answer: (a) A blended fuel composition consisting of 20% bio-ethanol and 80% conventional fossil petrol by volume.
Explanation
Option A is correct as E20 refers to a blend of 20% bio-ethanol and 80% conventional fossil petrol by volume. Options B, C, and D are incorrect technological misinterpretations.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
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2025 · Q45 · General Studies · 2 marks
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