Which method is NOT recommended for communication in a workplace?

Using yelling over engine noise as a method of communication in a workplace, particularly in environments where equipment operates loudly, is not recommended due to several reasons. First and foremost, it significantly increases the risk of miscommunication. The surrounding noise can prevent clear articulation of instructions, leading to misunderstandings that may compromise safety and efficiency.

Additionally, yelling can create an unprofessional atmosphere and lead to frustration among employees, which could impact morale and teamwork. Effective communication methods should prioritize clarity and understanding, and they should facilitate an environment where all employees feel comfortable to express themselves and receive instructions accurately.

In contrast, the other methods, such as two-way radios, signs, and written instructions, are designed to enhance communication even in noisy environments or situations where verbal communication may not be feasible. These alternatives allow for clearer transmission of information and help maintain safety protocols in workplaces requiring heavy equipment operation.