When conversing over a sound-powered telephone circuit, the words "yes" and "no" should be avoided. What are appropriate substitutes?

Correct Answer: Option B — "Yes" should be substituted by "affirmative" or suitable equivalent. "No" should be substituted by "negative" or equivalent.

Standardized maritime communication requires the use of "affirmative" and "negative" to eliminate ambiguity. Words like "yes" or "no" can be easily misheard over sound-powered circuits, especially in noisy engine room environments. Using clear, distinct terminology ensures that critical orders are understood correctly by all personnel involved in emergency operations.