Question 158General Subjects - 1st Asst/Chief70% to pass
Which of the following propulsor types does not require the use of a separate rudder for steerage?
AI Explanation
The correct answer is B) Cycloidal propellers.
Cycloidal propellers, also known as Voith-Schneider propellers, are a type of propulsor that does not require a separate rudder for steerage. This is because the cycloidal propeller has blades that can rotate 360 degrees, allowing for precise maneuvering and directional control without the need for a separate rudder.
The other options, A) Contra-rotating propellers, C) Conventional fixed-pitch propellers, and D) Tandem propellers, all require the use of a separate rudder for steerage and directional control.
Related Questions
#156 What type of propeller consists of a flat disc set flush with the under surface of the vessel's hull with a number of vertical, rudder-like blades projecting from it? #157 Which of the following propulsor types represents the proper terminology for electric propulsion where the drive motors are outside the ship's hull? #159 Concerning steerable internal duct thrusters, what statement is true? #160 What statement represents the fundamental difference between an azimuthing thruster and a podded propulsor? #161 With respect to a "tractor" type azimuthing thruster, what statement is true?