What is the primary safety precaution when working with CNG fuel systems?
CNG systems operate at extremely high pressures (up to 3,600 psi) that require special safety measures.
What color are CNG fuel lines typically marked for identification?
Blue is the standard color-coding for CNG components to distinguish them from other fuel systems.
Which component stores CNG fuel at high pressure?
CNG is stored in specially designed cylinders that can withstand pressures up to 3,600 psi.
What is the purpose of the pressure relief device (PRD) on CNG cylinders?
PRDs are critical safety devices that prevent catastrophic cylinder failure in extreme conditions.
Which tool is REQUIRED for checking CNG system leaks?
Special leak detection solutions are formulated for high-pressure gas systems.
What is the function of the CNG pressure regulator?
The regulator reduces high-pressure CNG to a level suitable for engine combustion.
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How often must CNG fuel cylinders be inspected according to NFPA 52?
Regular inspections are critical for CNG cylinder safety and compliance.
What special certification is required to perform CNG cylinder repairs?
CNG cylinder work requires specialized training and certification due to the extreme pressures involved.
What is the proper procedure when you smell natural gas in the shop?
Natural gas leaks require immediate evacuation and professional response due to explosion risks.