A.Movable ladders
B.Fixed ladders
C.Safety booms
D.Elevators
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A.air temperature at the time of the exposure
B.air pressure at the time of the exposure
C.humidity at the time of exposure
D.duration of the exposure
A.spring-loaded line thrower
B.hand thrown buoyant line
C.shoulder type line throwing gun
D.heaving line
A.Concentration of weight aft
B.Concentration of weight forward
C.Concentration of weight amidships
D.Concentration of weight at both ends of the vessel
A.The running reflection
B.The turning effect
C.The moving speed
D.The changing sensibility
A.cutting a square notch at each end of the crack
B.drilling a hole at each end of the crack
C.slot-welding the crack
D.welding a doubler over the crack
最新試題
How can the Coast Guard determine that a crew member is “able to understand any order spoken by the officers”?（）
High pressure and low pressure alarms must be tested（）.
How does a vessel’s rate of turn change when entering shallow water?（）
How does the effect known as “bank suction” act on a single-screw vessel proceeding along a narrow channel?（）
From your position you observe a rotating white and green light to the north. This light is most likely（）.
Great Salt Pond on Block Island is（）.
How does a coast radio station communicating by HF radio normally identify itself?（）
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use?（）
Generally，when lifting an inflatable liferaft back aboard ship，you would use the（）.
High clouds，composed of small white flakes or scaly globular masses，and often banded together to form a “mackerel sky”，would be classified as（）.