Which method of communication is NOT commonly used on the worksite?

The method of communication that is not commonly used on the worksite is written letters. On most job sites, effective communication tends to be immediate and requires clarity among team members. Verbal communication is frequently employed as it allows for direct interaction and quick exchanges of information. Hand signals are often utilized in environments where verbal communication may be hindered, such as in noisy conditions or when working at heights, where workers may not always be able to hear each other. Two-way radios are essential on many construction and industrial sites for real-time communication over distances, ensuring safety and coordination among workers.

In contrast, written letters are typically not a practical choice in dynamic and fast-paced environments where instant communication is necessary. Instead of writing letters, workers opt for more immediate forms of communication to convey information quickly and efficiently, which is critical for maintaining safety and productivity on the worksite.