According to ASME B 30.5, what does two audible signals indicate?

In the context of crane operations, two audible signals indicate the instruction to "go forward." This signaling is a crucial part of communication between the operator and the ground personnel, ensuring safe and efficient movement of the crane. When two distinct signals are given, it acts as a clear and unambiguous command for the operator to proceed in the forward direction. This protocol is essential for avoiding confusion, which can lead to accidents or unsafe conditions on the job site.

Understanding the importance of standardized hand signals, verbal commands, and audible signals as outlined in ASME B 30.5 is critical for crane operators. It enhances the operational safety by ensuring that all team members are aware of actions being taken and can prepare accordingly, thus minimizing risks during lifting operations.