A) True
To avoid these hazards, technicians must turn off the engine to stop CNG flow – especially before working on the vehicle. Most CNG vehicles have several ways of turning off the engine, so check the manufacturer's specific directions. Automatic release valve - installed on newer CNG systems.
Answer: True
Explanation:
CNG vehicles present potential hazards which include:
• Ignition sources as the ignition temperature is twice as high as gasoline.
• Contact with fuel
• Asphyxiation
• High-pressure CNG line
To avoid any of these hazards, you must turn off the engine to stop CNG flow and there are many ways by which you can turn it off.
