航海英语地文航海章节练习(2019.05.02)

单项选择题
What describes an accurate position that is NOT based on any prior position? （）
A.Dead-reckoning position
B.Estimated position
C.Fix
D.Running fix
单项选择题
A bold reef is a reef（）.
A.with part of it extending above the water
B.that can be detected by water turbulence
C.that drops off sharply
D.perpendicular to the current
单项选择题
What is the light characteristic of a lighted，preferred-channel buoy? （）
A.Group flashing
B.Composite group flashing
C.Interrupted quick flashing
D.Fixed and flashing
单项选择题
Which of the following are data layer categories to be displayed on ECDIS（）．
A.ECDIS warnings and messages
B.Hydrographic Office data
C.Notice to Mariners information
D.All of the above
单项选择题
A single line of position combined with a dead-reckoning position results in a(n)（）.
A.running fix
B.fix
C.estimated position
D.assumed position
单项选择题
When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.
A.the shape of an unlighted buoy
B.the light color of a lighted buoy
C.the color of the topmost band
D.whether the number is odd or even
单项选择题
（） is a circular traffic lane used at junctions of several routes，within which traffic moves counterclockwise around a separation point or zone.
A.Traffic Lane
B.Roundabout
C.Inshore Traffic Zone
D.Two-way Route
单项选择题
What describes a flood current（）.
A.Horizontal movement of the water toward the land after high tide
B.Horizontal movement of the water toward the land after low tide
C.Horizontal movement of the water away from the land following high tide
D.Horizontal movement of the water away from the land following low tide
单项选择题
Depiction of TSS's on charts uses（）as the primary color.
A.magenta
B.deep red
C.bright red
D.red
单项选择题
You determine your vessel’s position by taking a range and bearing to a buoy.Your position will be plotted as a（n）（）.
A.Running fix
B.Fix
C.Dead-reckoning position
D.Estimated position