A.It compensates for the error caused by the vertical component of the Earth's magnetic field
B.It compensates for error caused by the heeling of a vessel
C.It compensates for quadrantal deviation
D.It is only needed in equatorial waters
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A.Heeling magnet
B.Flinders bar
C.Fore-and-aft magnets
D.All of the above can be set on magnetic east or magnetic west headings
A.Quadrantal spheres
B.Heeling magnets
C.Flinders bar
D.Fore-and-aft magnets
A.The soft iron spheres on the arms of the binnacle
B.Magnets placed in trays inside the binnacle
C.A single vertical magnet beneath the compass
D.The Flinders bar
A.Course per magnetic steering compass
B.Gyro error
C.Variation
D.Maximum rudder angle previously used
A.Flinders bar should be inverted
B.Heeling magnet should be inverted
C.The quadrantal spheres should be rotated 180°
D.Flinders bar should be moved to the opposite side of the binnacle
最新試題
When changing from a compass course to a true course you should apply（）.
This induced magnetism（）the permanent magnetism already present in the ship.
When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
Variation is a compass error that you（）.
By convention，the north seeking ends of a compass’ magnets are colored（）.
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
The magnetism in the various structures of a ship changing as a result of cruising，vibration，or aging is termed（）.
What is an advantage of the magnetic compass aboard vessels?（）
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
When a magnetic compass is not in use for a prolonged period of time it should（）.