A.fix
B.estimated position
C.dead reckoning position
D.running fix
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A.American Bureau of Shipping
B.Commissioner of Customs
C.Treasury Department
D.Coast Guard
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.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.a rotation
B.a revolution
C.space motion
D.nutation
A.greater than the declination and both are of the same name
B.less than the declination and both are of the same name
C.greater than the declination and both are of contrary name
D.less than the declination and both are of contrary name
最新試題
A continuous watertight bulkhead on a ship is normally also 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 “Mediterranean moor” should be used when（）.
A “check” line is（）.
A crew member is having an epileptic convulsion. You should（）.
A celestial body will cross the prime vertical circle when the latitude is numerically（）.
A block and tackle is “rove to advantage”. This means that the（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
A “figure eight” knot is used to（）.
A continual worsening of the list or trim of any floating ship indicates（）.