What should gauges on compressed natural gas systems indicate?

The correct response highlights that gauges on compressed natural gas systems should indicate several critical parameters: compression discharge, storage pressure, and fuel supply cylinder fuel pressure. These readings are essential for monitoring the safety and efficiency of CNG systems.

Compression discharge pressure is vital as it indicates the pressure at which the gas is being delivered from the compressor to the storage system. This ensures that the gas is being compressed adequately and can help identify issues with the compressor’s performance.

Storage pressure refers to the pressure of the gas within storage tanks. Monitoring this is crucial to ensure that the system operates within safe limits and can prevent over-pressurization, which could lead to potential hazards.

Fuel supply cylinder fuel pressure tells how much pressure is available in the fuel supply to the engines or vehicles using the CNG. Adequate fuel pressure is necessary for optimal engine performance and operation.

These indicators together provide a comprehensive overview of the system’s performance and safety, ensuring that operators can react promptly to any issues. Other options, like indicating only storage pressure or focusing on flow rates, would not provide a complete picture necessary for the effective management of the CNG system. In addition, noting temperature and humidity is not directly relevant to the operational aspects needed for safety and performance monitoring in C