In a straight roll, if the male threads are positioned on the outside, it is referred to as what type of roll?

The term that describes a straight roll with male threads positioned on the outside is known as a salvage roll. This designation is significant because it not only defines the positioning of the threads but also indicates the roll's practical application in fire suppression for quick deployment and ease of use during firefighting operations. A salvage roll is typically used for storing hose in a manner that allows for efficient unwinding and rapid connection to a water supply when needed.

In contrast, other types of rolls, such as storage rolls or flat rolls, have different configurations and uses, focusing more on compact storage or organization rather than immediate accessibility. Understanding these distinctions can help firefighters and crews to choose the right roll method based on the operational requirements and efficiency needed in various situations.