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UPSC 2019 · Q43 · Science & Technology › Energy & Environment · Save

In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements :

  1. The main advantage of the use of H-CNG is the elimination of carbon monoxide emissions.
  2. H-CNG as fuel reduces carbon dioxide and hydrocarbon emissions.
  3. Hydrogen up to one-fifth by volume can be blended with CNG as fuel for buses.
  4. H-CNG makes the fuel less expensive than CNG.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 and 3 only
(c) 4 only
(d) 1, 2, 3 and 4
Show answer
Answer: (d) 1, 2, 3 and 4