A.bow and stern shell frames and plating
B.junction of the frames with the beams and floors
C.garboard strake，at each side of the keel
D.thrust bearing of the main shaft
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A.back current from the rudder
B.greater pressure on the right or left side of the propeller，depending on rotation
C.lower pressure on the right or left side of the propeller，depending on rotation
D.torque from the velocity and angle at which the surrounding water impinges upon the propeller blades
A.compound plate
B.furnaced plate
C.flat plate
D.rolled plate
A.after double bottoms
B.centerline tanks on tankers
C.fore and after peaks
D.forward double bottoms
A.officer
B.officers
C.officer's
D.officers’
A.footings
B.plugs
C.buckler plates
D.stop waters
最新試題
The permissible SWSF and SWBM are assigned by（）.
What is a cofferdam（）.
Which of the following tensioning devices is used with webbing to secure light vehicles aboard Ro-Ro vessels（）.
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.
Which space（s）is（are）deducted from gross tonnage to derive net tonnage（）.
What is the purpose of cant frames in steel vessels? （）
Tonnage openings must be closed by means of（）.
The riding pawl is（）.
The deadweight of a bulk carrier consists of（）.
The Captain’s accommodation comprising rooms certified for his exclusive use may be（）in the measurement of vessel’s tonnage.