A 'prolonged blast' lasts how many seconds (approximately)?

A 'prolonged blast' lasts how many seconds (approximately)?

• A. 2-3 seconds
• B. 4-6 seconds
• C. 6-8 seconds
• D. 8-10 seconds

Answer: (B)

Prolonged blast duration in maritime signaling is defined as about four to six seconds. This longer blast, compared with a short blast of roughly one second, is used to convey a more pronounced signal in fog or restricted visibility. The question asks for the approximate length, so four to six seconds is the best fit. The other options fall outside the standard range: two to three seconds are too short for a prolonged blast, and eight to ten seconds exceed the typical long-blast duration.

Prolonged blast duration in maritime signaling is defined as about four to six seconds. This longer blast, compared with a short blast of roughly one second, is used to convey a more pronounced signal in fog or restricted visibility. The question asks for the approximate length, so four to six seconds is the best fit. The other options fall outside the standard range: two to three seconds are too short for a prolonged blast, and eight to ten seconds exceed the typical long-blast duration.