Recreational Vehicle (RV) Technician Practice Test

Which of the following is NOT considered an "appurtenance" of a propane container?

1. Service valve

2. Liquid level gauge

3. Fill valve

4. High pressure pigtail

The correct answer is: High pressure pigtail

An appurtenance of a propane container refers to the components that are essential to the operation and safety of the propane system. These typically include devices that regulate the flow, maintain the liquid level, and allow for safe filling of the container. The service valve, liquid level gauge, and fill valve all serve specific functions that assist in the safe operation of the propane container. The service valve controls the flow of propane, the liquid level gauge indicates how much propane is present in the container, and the fill valve allows for the proper filling of the container without spills or overfilling. On the other hand, the high-pressure pigtail is a flexible connection that routes propane between the container and the regulator, but it does not fall under the definition of an appurtenance. Instead, it is considered part of the piping system or fueling equipment. This distinction is essential in understanding the components of propane systems and their classifications, ensuring that technicians can identify which parts are critical to safety and operation.