Which indicator is associated with the fixed maximum liquid level gauge on an ASME tank?

• A. A steady white mist is emitted from the fixed maximum liquid level gauge
• B. The overfill protection device stops the flow
• C. A pressure gauge shows high pressure
• D. The tank sounds a horn

Answer: (A)

The telltale for the fixed maximum liquid level gauge is a steady white mist emitted from the gauge. This venting indicates the liquid has reached the maximum level and is used to visually warn the operator to stop filling, preventing overfill. The other indicators describe different systems or alarms: stopping flow is the role of the overfill protection device, a high-pressure reading reflects pressure rather than level, and a horn signals another alarm condition.