更多"When adjusting a magnetic compass f"的相关试题:
[单项选择]When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
A. use the magnets one at a time，putting one in one side and then one on the opposite side，one step higher
B. use the magnets in pairs，starting at the top，with trays at the highest point of travel
C. use the magnets in pairs，from the bottom up，with the trays at the lowest point of travel
D. fill all the trays with magnets，then remove them one-by-one until the deviation is removed
[单项选择]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
[单项选择]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
[单项选择]My gyro-compass error is（）.
A. east two degrees
B. two degrees east
C. two east degrees
D. two-degrees east
[单项选择]Variation is a compass error that you（）.
A. can correct by adjusting the compass card
B. can correct by adjusting the compensating magnets
C. can correct by changing the vessel's heading
D. cannot correct
[单项选择]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
[单项选择]The error in a magnetic compass caused by the vessel’s magnetism is called（）.
A. variation
B. deviation
C. compass error
D. bearing error
[单项选择]When using the lifeboat compass，you must be careful to（）.
A. set it on the centerline of the boat
B. apply the correction for compass error
C. keep metal objects away from it
D. All of the above
[单项选择]When changing from a compass course to a true course you should apply（）.
A. variation
B. deviation
C. variation and deviation
D. a correction for the direction of current set
[单项选择]When a magnetic compass is not in use for a prolonged period of time it should（）.
A. be shielded from direct sunlight
B. be locked into a constant heading
C. have any air bubbles replaced with nitrogen
D. have the compensating magnets removed
[单项选择]（）the repeater compass with the master compass, please.
A. Similize
B. Clock
C. Synchronize
D. Position
[单项选择]（）the repeater compass with the master compass，please.
A. Similize
B. Clock
C. Synchronize
D. Position
[多项选择]Which of the following describes the roles of devices in a WAN (Choose three.)（）。
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
