單項(xiàng)選擇題Which of the followings does not belong to main maneuvering facilities?()

A.rudder
B.propeller
C.radar
D.sider thruster


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1.單項(xiàng)選擇題There shall be()into sleeping rooms from cargo and machinery spaces or from galleys,storerooms,drying rooms or communal sanitary areas.

A.no direct openings
B.direct openings
C.no more than one direct opening
D.up to one direct opening

2.單項(xiàng)選擇題A power-driven vessel shall have her engine ready for()when the visibility is restricted.

A.immediate stopping
B.immediate maneuvering
C.immediate anchoring
D.immediate going astern

5.單項(xiàng)選擇題As the temperature for a given mass of air increases, the().

A.dew point increases
B.dew point decreases
C.relative humidity increases
D.relative humidity decreases