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
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
（）is on the panel of radar.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
A Doppler log in the bottom return mode indicates the（）.
An ECDIS is required to display which information?（）
An electronic depth finder operates on the principle that（）.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.
The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced?（）.
Deviation in a compass is caused by the（）.