The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval().
时间:2022-10-11
The magnetism in the various structures of a ship changing as a result of cruising,vibration,or aging is termed().
时间:2022-10-10
What is used to correct for both induced and permanent magnetism,and consequently must be readjusted with radical changes in latitude().
综合作用
时间:2022-10-08
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is().
A ship under construction or major repair will acquire permanent magnetism due to()while sitting stationary in the earth’s magnetic field.
时间:2022-10-07
Variation in a compass is caused by().
When adjusting a magnetic compass for error,a deviation table should be made().
时间:2022-10-06
This induced magnetism()the permanent magnetism already present in the ship.
时间:2022-10-04
Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer().
The compass heading of a vessel differs from the true heading by().
The compass deviation changes as the vessel changes().
时间:2022-10-02
Indications of the master gyrocompass are sent to remote repeaters by the().
时间:2022-09-29
The directive force of a gyrocompass().
时间:2022-09-28
When changing from a compass course to a true course you should apply().