deviation minus variation
variation plus compass course
combined variation and deviation
difference between true and magnetic heading
第1题：
All of the following records are usually maintained by the watch-standing officers aboard a vessel EXCEPT the ______.
A.deck logbook
B.official logbook
C.compass record book
D.chronometer error book
第2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3题：
The compass error of a magnetic compass that has no deviation is ______.
A.zero
B.equal to variation
C.eliminated by adjusting the compass
D.constant at any geographical location
第4题：
public class IfTest （ public static void main（string[]args） { int x = 3； int y = 1； if （x = y） system.out.printIn（“Not equal”）； else system.out.printIn（“Equal”）； } ） What is the result？（）
第5题：
Error may be introduced into a magnetic compass by ______.
A.making a structural change to the vessel
B.a short circuit near the compass
C.belt buckles
D.All of the above
第6题：
A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment?
A.Move the quadrantal spheres closer to the compass
B.Raise the heeling magnet if the red end is up
C.Remove some of the Flinders bar
D.Raise or lower the athwartship magnets
第7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8题：
The compass rose on a nautical chart indicates both variation and ______.
A.deviation
B.annual rate of variation change
C.precession
D.compass error
第9题：
If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?______.
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
第10题：
public class IfTest （ public static void main（stringargs） { int x = 3； int y = 1； if （x = y） system.out.printIn（“Not equal”）； else system.out.printIn（“Equal”）； } ） What is the result？（）