Question

What are the primary advantages of employing Compressed Natural Gas (CNG) as a vehicular fuel over diesel?

1. CNG exhibits a higher cost-efficiency ratio compared to diesel.
2. CNG is less susceptible to tampering and adulteration, ensuring fuel integrity.
3. CNG combustion is characterized by optimal efficiency, minimizing residual unburnt components.

• A. All of these
• B. 3 only
• C. 2 only
• D. 1, 2

Answer 1

Answer:

A. All of these

Compressed Natural Gas (CNG)

• CNG is a clean-burning alternative fuel made by compressing natural gas to less than 1% of its volume at standard atmospheric pressure.
• It is primarily composed of methane (CH4) and is stored and distributed in high-pressure containers.
• CNG is often used as a fuel for vehicles, particularly in places with a focus on reducing air pollution and promoting environmentally friendly transportation.

The main advantages of CNG include:

• Efficient Combustion:
  • CNG burns most efficiently in automobiles, leaving very little unburnt residue.
  • This efficiency contributes to reduced emissions and environmental impact.
• Cost-Effectiveness:
  • CNG is highlighted as being cheaper than petrol or diesel.
  • This cost advantage, coupled with its efficiency, makes it an attractive option for addressing vehicular pollution.
• Reduced Risk of Adulteration:
  • Unlike petrol or diesel, CNG cannot be easily siphoned off by thieves and adulterated.
  • This reduces the risk of fuel tampering and ensures the integrity of the fuel.