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【单项选择题】

When the propeller blades are integral with the hub, the propeller is called a ().

A、A.built up propeller

B、B.solid propeller

C、C.controllable pitch propeller

D、D.suction back propeller

更多“When the propeller blades are integral with the hub, the propeller is called a ().”相关的问题
第1题

A、the bow  Bthe stem  C、the port side  D、the starboard side  

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第2题

A、A.straight  BB.to port  C、C.to starboard  D、D.None of the above  

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第3题

A、When dead in the water,it is often difficult to find the neutral position and slight headway or sternway may result  BWhen going directly from full ahead to full astern,there is complete steering control  C、When the vessel has headway and the propeller is in neutral,there is no effect on rudder control  D、When maneuvering in port,full ahead or astern power can usually be obtained without changing shaft RPM  

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第4题

A、Increase the thrust of the propeller  B、Protect the propeller from striking sawyers  C、Prevent the propeller from striking barges towed on the ship  D、Prevent the propeller from touching bottom in low water  

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第5题

A、A.When dead in the water,it is often difficult to find the neutral position and slight headway or sternway may result  BB.When going directly from full ahead to full astern,there is complete steering control  C、C.When the vessel has headway and the propeller is in neutral,there is no effect on rudder control  D、D.When maneuvering in port,full ahead or astern power can usually be obtained without changing shaft RPM  

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第6题

A、the propeller diameter  Bthe propeller radius  C、the pitch angle  D、the length of helix  

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第7题

A、angle that the propeller makes with a free stream of water  B、angle that the propeller makes with the surface of the water  C、number of feet per revolution the propeller is designed to advance in still water without slip  D、positive pressure resulting from the difference of the forces on both sides of the moving propeller in still water without slip  

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第8题

A、chief engineer  Bthe engineer  C、captain  D、any member of the engine department  

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第9题

A、fixed pitch propellers  B、uncontrollable pitch propeller  C、constant pitch propellers  D、variable pitch propellers  

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