88M Red Book AIT Practice Test

The correct answer is sound signals because they serve as an effective secondary method of communication in a convoy context, especially when visual contact is limited or verbal communication is obstructed by distance or noise. Sound signals, such as honking horns, whistles, or sirens, can convey important messages like alerts or commands to all vehicles in a convoy.

This method complements primary communication channels by providing clear auditory cues that can be heard over long distances or in conditions where visibility is compromised, making it crucial for maintaining coordination and safety among convoy members. The use of sound signals helps ensure that all personnel are aware of critical changes in the convoy’s movement or any emerging situations that require immediate attention.

While options such as verbal messages, visual signals, and text messages can also be used, they may not be as reliable in every convoy scenario, particularly in environments where communication can be hindered by factors like noise or distance. Therefore, sound signals are particularly valued for their effectiveness in conveying urgent messages in a robust and immediate manner.