A.is
B.are
C.was
D.were
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A.is more flexible and has the ability to absorb shock because of its weight
B.is less subject to wear and damage from abrasion
C.requires little maintenance
D.All of the above
A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
A.comes directly over the bow
B.comes directly over the stern
C.comes over an area extending from broad on the bow to the quarter
D.has no effect on the vessel
A.matching pulse rates of at least 20 stations
B.an automatic on-and-off switch
C.a horizontal matching of all delayed hyperbolic signals
D.automatic signal acquisition and cycle matching
A.Factor of safety
B.Number of wires per strand
C.Number of strands per wire rope
D.Number of wires in the core
A.an air leak has developed in the tank
B.the tank cooling system has malfunctioned
C.the pilot cylinder discharge valve is leaking
D.an excessive amount of insulation has been installed on the tank and piping
A.is easy to connect
B.provides an effective catenary and absorbs shock due to its weight
C.makes rigging a swivel unnecessary
D.prevents the tow from yawing by the drag of the chains in a seaway
A.abeam
B.dead astern
C.just aft of the bow
D.on either side of the stern
A.fo'c'sle Card
B.Articles Copy
C.Voyage Agreement
D.Shipping Articles
A.blocks have been overhauled
B.hauling parts of two tackles are attached
C.hauling part leads through the movable block
D.hauling part leads through the standing block
最新試題
A chart with a natural scale of 1:160，000 is classified as a（）.
A “l(fā)iner” in riveted construction of a vessel is a(n) （）.
A VLCC (100，000 DWT+) with a 30，000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a（）.
A chart position enclosed by a square is a(n)（）.
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
A chain bridle is used when towing astern because it（）.
A “spring line” is（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
A casualty report of an intentional grounding of a ship is required under what condition?（）