F1 - 1100105 Determine and allow for compass errors

C-3

Influence of the magnetic materials of the vessel

Deviation in a compass is caused by the _______.

337.5°

What course you should set the gyro compass when you want to steer NNW?

Deviation change in a heading

What causes the changes of deviation in a magnetic compass?

Coefficients

What are the broken series components of the total magnetic effects which cause deviation of the vessel magnetic compass?

Deviation and variation

To find a magnetic compass course from a true course you must apply __________.

By mechanically or electrically applying forces to precess the gyroscope

The spin axis of a gyroscope tends to remain fixed in space in the direction in which it is started. How does the gyroscope become north seeking so that it can be used as a compass?

remains aligned with compass north

As a vessel changes course to starboard, the compass card in a magnetic compass _______.

directive force component

The ship’s total magnetic force is split into three components, Which is not a component forces of ship total magnetic force?

33.75 degrees relative to bow on starboard side

The compass card has 32 points. How many degrees is the light house observed to be the 3 points from the bow on starboard side?

Being directly proportion in the strength of the pole

The basic principle of a magnet is, like poles repel and unlike poles attract. How would you describe the force between the magnetic poles?

Ballistic tilt effect

The ballistic tilt cause the axle to wander slightly after an alteration if course and/ or speed because of the inclination of the axle. What is the wandering is referred to?

Degaussing

Reducing the strength of a magnetic field decreases the number of gauss in that field. What is this process called?

Bi-polar theory

Is a magnetic theory that believes the atoms within the molecules are themselves dipoles, meaning having two magnetic poles.

Ballistic tilt

In gyro compass principles, what is the small torque about the vertical axis which produce effect of procession about the horizontal referred to?

The vessels position

Magnetic variation changes with a change in ________.

Compass error and variation are equal

If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?

By accurate electronics servomechanism

How does the gyrocompass repeater reproduce the indication of master gyro compass?

By applying variation

From your true course how can you find the magnetic course?

By moving electric charges

According to the present theory, how would the magnetic field around a current-carrying wire and the magnetism of a permanent magnet are created?

By moving he quadrantal spheres in

A vessel is heading magnetic northwest and its magnetic compass reads a heading of 318 deg. What action should be taken to remove this error during compass adjustment?