relative bearing
range line
track line
estimated position
第1题：
A radar range to a small，charted object such as a light will provide a line of position in which form?
A.Straight line
B.Arc
C.Parabola
D.Hyperbola
第2题：
A single line of position combined with a dead-reckoning position results in a(n) ______.
A.estimated position
B.assumed position
C.fix
D.running fix
第3题：
On small scale charts of ocean areas where hydrographic information is，in many cases，still sparse，charted shoals may be in error as regards______．
A.position
B.position，depth and extent
C.depth and extent
D.position and extent
第4题：
Vowels are formed mainly by the position of the tongue and, secondarily, by the shape of the lips and movement of the jaw.（）
第5题：
A vessel sighting a northern right whale dead ahead should ______.
A.maintain course and speed
B.alter course to give a wide clearance
C.report the whale's position to the Canadian Coast Guard
D.All of the above
第6题：
A true bearing of a charted object，when plotted on a chart，will establish a ______.
A.fix
B.line of position
C.relative bearing
D.range
第7题：
The irregular black line around a charted light such as Race Rock Light indicates that it is ______.
A.unwatched
B.surrounded by riprap
C.a minor light
D.constructed on an artificial island
第8题：
A line of position derived by radar range from an identified point on a coast will be a(n) ______.
A.straight line
B.arc
C.parabola
D.line parallel to the coast
第9题：
Vowels are formed mainly by the position of the tongue and, secondarily, by the shape of the lips and movement of the jaw.（）
A对
B错
第10题：
Which of the following statements are true？（）