Question 157General Subjects - 1st Asst/Chief

70% to pass

Which of the following propulsor types represents the proper terminology for electric propulsion where the drive motors are outside the ship's hull?

AJet drive
BAzipod propulsor
CCycloidal propeller
DAzimuthing propulsor
AI Explanation

The correct answer is B) Azipod propulsor. The term "azipod propulsor" refers to electric propulsion systems where the drive motors are located outside the ship's hull, typically in a submerged, azimuthing pod. This configuration allows for improved maneuverability and efficiency compared to traditional shaft-driven propellers. The "azi-" prefix indicates the ability to rotate or azimuth the propulsor unit, which is a key feature of this type of propulsion system. The other options are incorrect because: A) Jet drive refers to a propulsion system using water jets, not electric motors; C) Cycloidal propeller is a different type of specialized propulsor; and D) Azimuthing propulsor is a broader term that encompasses azipod systems as well as other types of rotating propulsors.

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Official Resources
46 CFR Machinery & Electrical 46 CFR Engineering USCG National Maritime Center
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