Question 4237Deck General70% to pass
In twin-screw engine installations while going ahead, maneuvering qualities are most effective when the tops of the propeller blades both turn _______________.
AI Explanation
The correct answer is B) outboard from the center.
When the tops of the propeller blades in a twin-screw engine installation turn outboard from the center, the maneuvering qualities are most effective while going ahead. This is because the outward turning of the propeller blades creates a lateral thrust that enhances the vessel's ability to turn and maneuver.
The other options are incorrect because: A) turning to port would reduce the lateral thrust, C) turning inboard toward the center would also reduce the lateral thrust, and D) turning to starboard would have the opposite effect of the desired outward lateral thrust.
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