Question 22 of 30
What is the internationally recognized sound signal for a Man Overboard (MOB) emergency?
A
Continuous short rings on the bell
B
Three long blasts on the ship's whistle
C
Two prolonged blasts on the horn
D
Seven short blasts
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Answer & Explanation
The correct answer is Option B: Three long blasts on the ship's whistle.
The Man Overboard (MOB) signal is three long blasts on the ship's whistle or horn (the Morse signal for the letter 'O'), which alerts the bridge and crew to an emergency where immediate maneuvering is required to rescue a person from the sea.