A prolonged blast is defined as a sound lasting how many seconds?

A prolonged blast is defined as a sound lasting between 4 to 6 seconds. This standard is important for communication and signaling purposes in maritime operations. Prolonged blasts serve as a warning signal in situations where visibility is limited or when vessels are navigating congested areas. Understanding the correct duration for these signals is essential for maintaining safety on the water and ensuring that communication between vessels is effective.

The choice of 4 to 6 seconds aligns with regulations and guidelines established by maritime organizations, emphasizing its significance in operational protocols. This definition helps crew members understand the appropriate response time and enhances coordination among vessels, contributing to overall maritime safety.