022.03 Magnetism - Direct Reading Compass and Flux Valve

Question 1

The sensor part of the flux-valve is the (three pick-up coils/excitation coil)​.

Answer 1

The sensor part of the flux-valve is the (three pick-up coils).

Question 2

The inclination of the Earth’s magentic field at the magnetic poles is equal to (…)°​.

Answer 2

The inclination of the Earth’s magentic field at the magnetic poles is equal to (90)°.

Question 3

The inclination of the Earth’s magentic field at the magnetic equator is equal to (…)°​.

Answer 3

The inclination of the Earth’s magentic field at the magnetic equator is equal to (0)°.

Question 4

Magnetic heading can be derived from the true heading by means of a map showing (…)​ lines.

Answer 4

Magnetic heading can be derived from the true heading by means of a map showing (isogonal) lines.

Question 5

The magnetic dip at any point on the Earth’s surface is the angle formed between the compass needle and the local (horizontal/vertical)​.

Answer 5

The magnetic dip at any point on the Earth’s surface is the angle formed between the compass needle and the local (horizontal).

Question 6

A flux valve detects electronically the (vertical/horizontal)​ component of the earth magnetic field.

Answer 6

A flux valve detects electronically the (horizontal) component of the earth magnetic field.

Question 7

The flux valve in a Remote Indicating Magnetic Compass is supplied with (AC/DC)​ current.

Answer 7

The flux valve in a Remote Indicating Magnetic Compass is supplied with (AC) current.

Question 8

When talking about the Earth magnetic field, the magnetic meridian is the (horizontal/vertical)​ component of the magnetic lines of force.

Answer 8

When talking about the Earth magnetic field, the magnetic meridian is the (horizontal) component of the magnetic lines of force.

Question 9

The principle of compass swinging is to (…) the deviation.

Answer 9

The principle of compass swinging is to (determine) the deviation.

Question 10

The quandrantal deviation of the magnetic compass is due to the action of the (soft/hard) iron pieces influenced by the geomagnetic field.

Answer 10

The quandrantal deviation of the magnetic compass is due to the action of the (soft) iron pieces influenced by the geomagnetic field.

Question 11

Deviation compensation in a flux gate compass is done (automatically/electronically/mechanically)​.

Answer 11

Deviation compensation in a flux gate compass is done (mechanically).

Question 12

The principle of compass correction is to (…) ​the deviation.

Answer 12

The principle of compass correction is to (correct for) the deviation.