Marina Exam Reviewer: This type of screw is principally used by fast coastal craft and some classes of aircraft carriers. The propeller revolve in the same direction, so as to facilitate engine installation. This propeller is __________.

Marina Exam Reviewer

This type of screw is principally used by fast coastal craft and some classes of aircraft carriers. The propeller revolve in the same direction, so as to facilitate engine installation. This propeller is __________. 

A. twin screw 
B. single screw 
C. Triple or multiple screw 
D. quadruple screw




Answer:     C. Triple or multiple screw 

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