A.Relative
B.TRUE
C.Compass
D.Magnetic
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A.magnetism from the earth's magnetic field
B.misalignment of the compass
C.magnetism within the vessel
D.a dirty compass housing
A.deviation minus variation
B.variation plus compass course
C.combined variation and deviation
D.difference between true and magnetic heading
A.vessel's geographic position
B.vessel's heading
C.earth's magnetic field
D.influence of the magnetic materials of the vessel
A.true meridian and the axis of the compass card
B.true meridian and the magnetic meridian
C.magnetic meridian and the axis of the compass card
D.axis of the compass card and the degaussing meridian
A.making a structural change to the vessel
B.a short circuit near the compass
C.belt buckles
D.All of the above
A.accurate only in the Polar regions
B.accurate electronic servomechanisms
C.hand operated
D.accurate only if the vessel is underway
A.Magnetic compass table
B.Magnetic meridians
C.Isogonic lines
D.Variation is not indicated on small-scale nautical charts
A.radar
B.DF
C.Satellite Navigator
D.Automatic Omega Navigator
A.Compass error and variation are equal
B.Compass north will be true north
C.Variation will equal deviation
D.There will be no compass error
A.the deviation has been offset by the variation
B.there is something wrong with the compass
C.the compass is being influenced by nearby metals
D.there is no deviation on that heading
最新试题
An ECDIS is required to display which information?()
An ECDIS is required to display which information?()
A radar contact will remain stationary on a relative motion radar display only when it is().
()20 targets can be tracked at one time.When maximum tracking capacity is reached,no further acquisitions are possible.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?().
Error may be introduced into a magnetic compass by().
A Doppler log in the bottom return mode indicates the().
()is on the panel of radar.
Deviation is the angle between the().
A radar range to a small,charted object such as a light will provide a line of position in which form?().