單項選擇題A light characteristic of composite group flashing indicates that there is a(n)（）.

A.sharp turn in the channel
B.narrowing in the channel at that point
C.junction in the channel
D.obstruction that must be left to port


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題A lateral system buoy displaying a quick light（）.

A.should be passed close aboard on either side
B.indicates that special caution is required
C.is used at a channel bifurcation or junction
D.is painted with red and white vertical stripes

2.單項選擇題A great circle track provides the maximum saving in distance on（）.

A.easterly courses in high latitudes
B.southerly courses in high latitudes
C.westerly courses in low latitudes
D.easterly courses in low latitudes that cross the equator

3.單項選擇題A gnomonic projection is based on a(n)（）.

A.plane tangent at one point
B.cylinder tangent at the equator
C.cone tangent at one parallel
D.infinite series of cones tangent at selected parallels

4.單項選擇題（）refers to the angle between true North and the heading line of the ship.

A.True position
B.True meridian
C.True course
D.True bearing