What is the name of the uppermost part of a pipe?

The uppermost part of a pipe is referred to as the crown. This term is commonly used in the context of sewer and drainage systems, where understanding the different parts of a pipe is crucial for proper maintenance and functionality. The crown is the highest point inside the pipe and is significant because it plays a role in the flow characteristics and helps prevent issues related to sediment buildup and flow obstruction.

Recognizing the crown's position can aid technicians in assessing the health of the pipeline, as adequate flow relies on proper positioning within the pipe structure. Other terms within the choices, such as the invert, refer to the lowest part of the pipe, while the flange pertains to a connection point for joining pipes or components. The body refers to the overall structure of the pipe but does not denote a specific part like the crown does. Being familiar with these specific terminologies enhances one's ability to manage and maintain collection systems effectively.