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单项选择题
A.The domestic water
B.Bilge water
C.Oil transfer
D.The ballast
单项选择题
A.A cut-off lever
B.A swivel block
C.A cross-head
D.A driving gear
单项选择题
A.the piston rod
B.the tiller arm
C.the connecting rod
D.the rudder
单项选择题
A.fouled tubes in shell and tube condenser
B.too little or too warm condenser water
C.air or non-condensable gas in system
D.overcharge of refrigerant
单项选择题
A.The winch motor
B.The band brake
C.The winch barrel
D.The anchor capstan
单项选择题
A.The cable lifter
B.The hoisting motor
C.The topping wire
D.The life-raft
单项选择题
A.stays
B.winches
C.barrels
D.brakes
单项选择题
A.fire-tubes
B.furnaces
C.water drums
D.water wall tubes
单项选择题
A.The three moving vanes and the three fixed vanes form three pressure chambers
B.The three moving vanes and the three fixed vanes form six pressure chambers
C.The three moving vanes and the three fixed vanes form nine pressure chambers
D.The three moving vanes and the three fixed vanes form twelve pressure chambers
单项选择题
A.It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliary
B.The auxiliary gear could be power operated in passenger ships
C.The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speed
D.All moving parts of the steering gear must be guarded against any possible damage