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
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A.entered through a dredged cut
B.not accessible in easterly gales
C.available for vessels up to a maximum draft of 8 feet (2.4m)
D.not affected by the tide
A.Black and white stripes with an interrupted quick flashing light
B.Black and red stripes with a Morse (A) light
C.Black and red stripes with an interrupted quick flashing light
D.Red and white stripes with a Morse (A) light
A.It is faster
B.It is slower
C.There is no change
D.It remains constant for varying propeller revolutions
A.moor a damaged barge to the bank and leave
B.remove and deliver a loaded barge from a multiple tow
C.remove a barge while locking through
D.tow an empty barge astern
A.logs must be kept in an orderly manner
B.erasures are not allowed
C.it must identify the vessel's name and official number
D.All of the above
A.Fires in electrical equipment
B.Flammable oils and greases
C.Class "A" fires in ordinary combustibles
D.Materials containing their own oxygen
A.tank capacities
B.stability in the event of damage
C.towing speed
D.anchor holding ratio
A.towing bridle
B.main weather cover
C.external lifelines
D.righting strap
A.By cooling the oil below the ignition temperature
B.By removing the fuel source from the fire
C.By excluding the oxygen from the fire
D.By increasing the weight of the oil
A.It is inflated by a small CO2 bottle that is automatically tripped when the front zipper is at the top of the zipper track
B.It is inflated by a small CO2 bottle that is manually tripped
C.It is inflated by blowing through an inflation tube
D.It inflates by seawater bleeding into the inflation bladder and reacting with a chemical
最新試題
Handholds or straps on the underside of an inflatable liferaft are provided（）.
Given the same water depth and line tension，the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be（）.
Hanging a barge off means to（）.
High clouds，composed of small white flakes or scaly globular masses，and often banded together to form a “mackerel sky”，would be classified as（）.
How do the height and location of a tug’s towing bitts relate to the danger of tripping?（）
How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?（）
Generally，what is used to inflate liferafts?（）
Generally，when lifting an inflatable liferaft back aboard ship，you would use the（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
How does a coast radio station communicating by HF radio normally identify itself?（）