Page 29 - ESP Participant Guide_Neat

Module 2: High-Pressure NGV Components

Module 2: Knowledge Check

If this component of the fuel receptacle is damaged or missing, there will be leaking during the fueling process.
□ O-ring
□ Dust cover
□ One-way check valve
□ Leak detector

High-pressure fuel lines on CNG vehicles may be:
□ Rigid stainless steel or approved flexible hose
□ Flexible hose or plastic tubing
□ Plastic tubing or copper tubing
□ None of the above

The most commonly used fitting on a high-pressure CNG fuel system is:
□ Double ferrule
□ Single ferrule
□ O-ring face seal
□ None of the above

Which of the following statements is true about Pressure Relief Devices (PRDs)?
□ PRDs vent gas in the event of a fire.
□ PRD vent lines must have caps.
□ Each cylinder must have at least one PRD.
□ All of the above

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