A.making a structural change to the vessel
B.a short circuit near the compass
C.belt buckles
D.All of the above
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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
最新試題
（）is on the panel of radar.
An ECDIS is required to display which information?（）
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
Compass deviation is caused by（）.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
A Doppler speed log indicates speed over ground（）.
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE，MASTS，ETC means（）.
A radar display in which North is always at the top of the screen is a(n)（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.