單項(xiàng)選擇題

With reference to operating a four-ram steering gear system under emergency conditions, which one of the following statements is incorrect?（）

A.Only one pump should be used at any time
B.The ship speed should be reduced to 70% of the normal
C.Watch keeping of the steering gear should be increased
D.Limitations of the steering gear should be logged but the bridge need not be informed

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單項(xiàng)選擇題

With reference to a radial piston pump, which one of the following statements is false?（）

A.Surrounding the fixed shaft is a hollow shaft
B.This hollow shaft carries radial bores
C.Each bore is fitted with a well-lapped plunger
D.There are always even numbers of bores

單項(xiàng)選擇題

With reference to an axial piston pump, which one of the following statements is true?（）

A.The cylindrical barrel is coupled to the motor
B.The cylindrical barrel has an odd number of bores
C.The bores end in sockets
D.The sockets fit in the swash plate