JKSSB Sub Inspector of Police (JKPSI) 2022 — Q86 Solved Answer with Explanation

JKSSB Sub Inspector of Police (JKPSI) — Science & Technology — 2022

View the full solved paper: JK PSI 2022

Question

CNG is a fuel gas which is mainly composed of methane that is used for vehicles in general. Here CNG stands for:

  1. A. Complex Nitrous Gas
  2. B. Certified National Gas
  3. C. Compressed Natural Gas (Correct answer)
  4. D. Coal and Nucleotide Gas

Correct Answer

Option C — Compressed Natural Gas

Detailed Solution & Explanation

CNG stands for Compressed Natural Gas. It is a cleaner-burning alternative to petrol and diesel, primarily composed of methane (CH4) compressed to less than 1% of its volume at standard atmospheric pressure. CNG is used in vehicles, especially auto-rickshaws, buses, and taxis in Indian cities, as it produces significantly lower levels of carbon monoxide, hydrocarbons, and particulate matter compared to petrol and diesel. Delhi mandated CNG for public transport in 1998-2001 to combat severe air pollution.