Question 4191 Deck General

70% to pass

If a tug equipped with flanking rudders is to be turned in a confined circle, when going astern, the stern will move to port the quickest if _______________.

A the rudder is hard to port and the flanking rudders are hard to starboard
B the rudder is hard to port and the flanking rudders are hard to port
C the rudder is amidships and the flanking rudders are hard to port
D all rudders are hard to starboard
AI Explanation

The correct answer is B) the rudder is hard to port and the flanking rudders are hard to port. When a tug with flanking rudders is going astern in a confined circle, the stern will move to port the quickest if the main rudder is hard to port and the flanking rudders are also hard to port. This is because the combined force of the rudder and flanking rudders being turned to port will create the greatest amount of turning force, causing the stern to swing to port more quickly. The other options are incorrect because: A) Having the flanking rudders turned to starboard would create a turning force in the opposite direction, slowing the port swing of the stern. C) Having the main rudder amidships would reduce the overall turning force compared to having it hard to port. D) Having all rudders turned to starboard would create a turning force in the opposite direction, causing the stern to swing to starboard instead of port.

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