What is NOT an advantage of the rhumb line track over a great circle track?
A.Easily plotted on a Mercator chart
B.Negligible increase in distance on east-west courses near the equator
C.Does not require constant course changes
D.Plots as a straight line on Lambert conformal charts
第1题:
The path that a vessel is expected to follow,represented on a chart by a line drawn from the point of departure to the point of arrival,is the ______.
A.DR plot
B.track line
C.heading
D.estimated course
第2题:
When navigating in high latitudes and using a chart based on a Lambert conformal projection,______.
A.a straight line drawn on the chart approximates a great circle
B.the chart should not be used outside of the standard parallels
C.the course angle is measured at the mid-longitude of the track line
D.distance cannot be measured directly from the chart
第3题:
What is the purpose of the limit switch on gravity davits?
A.To cut off the power when the davits hit the track safety stops
B.To stop the davits from going too fast
C.To cut off the power when the davits are about 12 inches or more from the track safety stops
D.None of the above
第4题:
线路中心线 center line of track
第5题:
Which two statements about the track configuration option are correct?()
第6题:
Plotting radio bearings over a long distance
Determining latitude and longitude of a fix
Measuring rhumb line distances
Measuring rhumb line directions
第7题:
always be nearer to the equator
always be nearer to the elevated pole
be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern Hemisphere
be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions
第8题:
the primary great circle of the Earth perpendicular to the axis
the line to which all celestial observations are reduced
the line from which a celestial body's altitude is measured
All of the above
第9题:
Closer to the coast
Farther from the coast
On the track line ahead of the fix
On the track line behind the fix
第10题:
latitude scale near the middle of the track line
longitude scale near the middle of the track line
latitude scale at the midlatitude of the chart
latitude or longitude scale at the middle of the scale
第11题:
To cut off the power when the davits hit the track safety stops
To stop the davits from going too fast
To cut off the power when the davits are about 12 inches or more from the track safety stops
None of the above
第12题:
第13题:
What is the major advantage of a rhumb line track?
A.The vessel can steam on a constant heading (disregarding wind,current,etc)
B.The rhumb line is the shortest distance between the arrival and departure points
C.It is easily plotted on a gnomonic chart for comparison with a great circle course
D.It approximates a great circle on east-west courses in high latitudes
第14题:
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?
A.Plotting radio bearings over a long distance
B.Determining latitude and longitude of a fix
C.Measuring rhumb line distances
D.Measuring rhumb line directions
第15题:
You are running parallel to the coast and take a running fix using bearings of the same object.If you are making less speed than used for the running fix,in relation to the position indicated by the fix,you will be ______.
A.Closer to the coast
B.Farther from the coast
C.On the track line ahead of the fix
D.On the track line behind the fix
第16题:
What Netflow component can be applied to an interface to track IPv4 traffic?()
第17题:
it is faster
it can be used in both the immediate action and the delayed action situations
in fog,if the turn is started as soon as the man goes over,the vessel will be at the point where he went over when the turn is completed
it returns the vessel to the original track line on a reciprocal course
第18题:
Easily plotted on a Mercator chart
Negligible increase in distance on east-west courses near the equator
Does not require constant course changes
Plots as a straight line on Lambert conformal charts
第19题:
easterly courses in high latitudes
southerly courses in high latitudes
westerly courses in low latitudes
easterly courses in low latitudes that cross the equator
第20题:
A rhumb line appears as a straight line
Distance is measured at the midlatitude of the track line
Meridians appear as curved lines converging toward the nearer pole
Parallels,except the equator,appear as curved lines
第21题:
loxodromic curve
curved line concave to the equator
straight line
spiral approaching the poles as a limit
第22题:
A curved line drawn on a Mercator Chart
A course line that inscribes a loxodromic curve
The shortest distance between any two points on the earth
The smallest circle that can be drawn on the face of a sphere
第23题:
The two points are in low latitudes in the same hemisphere
The two points are in high latitudes in the same hemisphere
The two points are near the equator, but in different hemispheres
One point is near the equator, one point is in a high latitude, and both are near the 180th meridian