A
Both 1 and 2
B
2 only
C
1 only
D
Neither 1 nor 2
Correct answer: (c) 1 only
Explanation
Statement 1 is correct because ethanol has superior anti-knock properties (higher octane rating) compared to petrol, but its calorific/energy value per litre is lower. Statement 2 is incorrect because FFV-SHEVs specifically combine internal combustion flex-fuel engines with electric drive motors and self-charging battery systems.
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 · Q43 · General Studies · 2 marks
In the context of electric vehicle batteries, consider the following elements: I. Cobalt II. Graphite III. Lithium IV. Nickel How many of the above usually make up battery cathodes? -
2025 · Q45 · General Studies · 2 marks
Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in the production of how many of them? -
2025 · Q63 · General Studies · 2 marks
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2025 · Q41 · General Studies · 2 marks
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2024 · Q37 · General Studies · 2 marks
Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen?