A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°. Which action should be taken to remove this error during compass adjustment?
A.If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets
B.If the blue ends of the magnets are aft you should lower the fore-and-aft tray
C.If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets
D.If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets
第1题:
Heeling error is defined as the change of deviation for a heel of ______.
A.2° while the vessel is on an intercardinal heading
B.1° while the vessel is on a compass heading of 000°
C.2° and is constant on all headings
D.1° while the vessel is on a compass heading of 180°
第2题:
Deviation in a compass is caused by the ______.
A.vessel’s geographic position
B.vessel’s heading
C.earth’s magnetic field
D.influence of the magnetic materials of the vessel
第3题:
Magnetic heading differs from compass heading by______.
A.compass error
B.true heading
C.variation
D.Deviation
第4题:
deviation
variation
compass error
northerly error
第5题:
compass error
true heading
variation
deviation
第6题:
east
west
north
south
第7题:
compass error
latitude
variation
deviation
第8题:
If the quadrantal spheres are all the way out,replace them with smaller spheres
If the quadrantal spheres are all the way in,replace them with larger spheres
If the quadrantal spheres are all of the way out,move the spheres in
If the quadrantal spheres are all the way out,replace them with larger spheres.
第9题:
If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets.
If the blue ends of the magnets are aft you should lower the fore-and-aft tray
If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets
If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets
第10题:
If the quadrantal spheres are out as far as possible replace them with smaller spheres
If the quadrantal spheres are in as far as possible remove one of the spheres
If the quadrantal spheres are in as far as possible replace them with smaller spheres
If the quadrantal spheres are out as far as possible,move the quadrantal spheres in
第11题:
geographic pole and the magnetic pole
lubber's line and true north
horizontal and the magnetic line of force
compass heading and the magnetic heading
第12题:
compass north
the direction of the vessel's head
magnetic north
a relative bearing taken with an azimuth circle
第13题:
Compass error is equal to the ______.
A.deviation minus variation
B.variation plus compass course
C.combined variation and deviation
D.difference between true and magnetic heading
第14题:
If the compass heading and magnetic-heading are the same then ______.
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
第15题:
Magnetic dip is a measurement of the angle between the ______.
A.geographic pole and the magnetic pole
B.lubber’s line and true north
C.horizontal and the magnetic line of force
D.compass heading and the magnetic heading
第16题:
vessel's geographic position
vessel's heading
earth's magnetic field
influence of the magnetic materials of the vessel
第17题:
Heeling magnet
Flinders bar
Fore-and-aft magnets
All of the above can be set on magnetic east or magnetic west headings
第18题:
the deviation has been offset by the variation
there is something wrong with the compass
the compass is being influenced by nearby metals
there is no deviation on that heading
第19题:
compass error
variation
magnetic dip
deviation
第20题:
Move the quadrantal spheres closer to the compass
Raise the heeling magnet if the red end is up
Remove some of the Flinders bar
Raise or lower the athwartship magnets
第21题:
If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets
If the blue ends of the magnets are aft you should lower the fore-and-aft tray
If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets
If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets
第22题:
Quadrantal spheres
Heeling magnets
Flinders bar
Fore-and-aft magnets
第23题:
compass north and magnetic north
compass north and true north
magnetic meridian and the geographic meridian
your vessel's heading and the magnetic meridian
第24题:
deviation minus variation
variation plus compass course
combined variation and deviation
difference between true and magnetic heading