問題一覧
1
What lines connect points of equal point magnetic variation?
Isogonic Line
2
What lines connect points of no magnetic variation?
Agonic Line
3
What is the term used for which the magnetization of magnetic material is in a uniform direction?
Domain
4
What is the term used for magnetic properties similar to those of iron. In other words, you can make a magnet out of it?
Ferromagnetic materials
5
What is the term used as deflection right or left of the magnetic meridian?
Deviation
6
What type of magnetism refers to a non-magnetic iron is placed near a magnet it gets magnetized. As soon as the magnetic field disappears, the magnetism of the magnet is lost?
Induced Magnetism
7
What type of magnetism may change in strength due to collision with another vessel, struck by lightning or moored on a constant heading for a long period?
Sub-Permanent Magnetism
8
What part of the ship does not belong on induced magnetism?
Hull
9
What part of the ship does not belong on permanent magnetism?
Masts
10
What type of magnetism remains after the exciting force has been removed?
Permanent Magnetism
11
What is the angle between the Earth's magnetic field and the Earth's surface?
Inclination
12
What is the term used for the angular difference between the true north and magnetic variation?
Variation
13
What is the term used for line of force?
Magnetic Flux
14
What is the angle between vertical and horizontal line of force?
Angle of Dip
15
The deviation of the compass from true north is an angle called?
Declination
16
It is a course whose bearing is relative to the meridian. by
True Course
17
Who invented gyroscope?
Jean-Bernard-Leon Foucalt
18
What part of gyro compass used for converting the ship's power supply into the power necessary for operating the static inverter and transmission units?
Power Adopter
19
What part of gyro compass consist of amplifiers and repeater switches
Transmission Unit
20
What part of gyro compass helps for computing and amplifying circuit components?
Control Cabinet
21
What is the term used for the process of rotating object's tendency to maintain it's orientation?
Gyroscopic Motion
22
It is a part of magnetic compass that indicates direction to the Earth's magnetic field or the approximate position of north or south.
Magnetic Needle
23
At what year does magnetic compass used for maritime navigation?
1111-1117
24
What is the term used for a fixed point on the globe?
Geographic North
25
consists of a sensitive element of gyroscope?
Master Compass
26
the ship's heading shown by master compass by means of a signal from the transmission unit.
Repeater Indicates
27
Who First use Magnitic Compass?
Song dynasty
28
The magnetic compass was first invented as a device for divination as early as the Chinese?
Han dynasty and Tang dynasty
29
China by the military for navigational orienteering by?
1040-44
30
Iron or steel which is easily magnetized by induction, but losses its magnetism when the magnetic field is removed?
can be demagnetized once it is magnetized.
soft iron
31
Iron or steel which is NOT readily magnetized by induction, but which retains a high percentage of the magnetism acquired.
Hard iron
32
the line connecting zero magnetic dip.
Aclinic line
33
the lines connecting points of equal magnetic dip
Isoclinic line
34
the direction in which the north end of a compass needle or other freely suspended magnet will point in response to the earth's magnetic field
Magnetic North
35
are rapidly replacing the use of other traditional compasses. However, most military and ships use the gyro compass or magnetic compass if GPS compass could not pick up enough satellite. Many hikers and drivers like this compass due to its relative reliability.
Gps compass
36
In this modern digital world, compass are becoming more popular. These use many of the electronic magnetic sensors which would calculate the accurate direction the compass is pointing
Solid state compass
37
This compass relies on the direction of celestial bodies to find true north, which is used in many circumstances, mainly in the far north and south poles where magnetic compass would become erratic and gyro compass stops working.
Astrocompass
38
It is a special type of compass developed in 19th century which determines the true north. The gyro compass is commonly used in large ships and in other circumstances where the accurate prediction of true north is needed
Gyro compass
39
is used in ships mainly for the purpose of steering. Since the compass is an electronic one, th errors is greatly re
Fluxgate compass
40
It is a sophisticated device designed for highly accurate navigation. The prism sighting arrangement allows the user to read the compass bearings while seeing distant objects.
Prismatic compass
41
for directional readings since the moving card absorbs much of the motion of the boat.
Card compass
42
allowing the user to hold both the map and the compass in one hand while travelling at speed by bike or by canoe.
Thumb compass
43
It is the most affordable compass. This compass includes a magnifying lens for map reading, luminous components for low light conditions and different scales for world wide use.
Base plate compass
navigation equipment
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15問 • 1年前問題一覧
1
What lines connect points of equal point magnetic variation?
Isogonic Line
2
What lines connect points of no magnetic variation?
Agonic Line
3
What is the term used for which the magnetization of magnetic material is in a uniform direction?
Domain
4
What is the term used for magnetic properties similar to those of iron. In other words, you can make a magnet out of it?
Ferromagnetic materials
5
What is the term used as deflection right or left of the magnetic meridian?
Deviation
6
What type of magnetism refers to a non-magnetic iron is placed near a magnet it gets magnetized. As soon as the magnetic field disappears, the magnetism of the magnet is lost?
Induced Magnetism
7
What type of magnetism may change in strength due to collision with another vessel, struck by lightning or moored on a constant heading for a long period?
Sub-Permanent Magnetism
8
What part of the ship does not belong on induced magnetism?
Hull
9
What part of the ship does not belong on permanent magnetism?
Masts
10
What type of magnetism remains after the exciting force has been removed?
Permanent Magnetism
11
What is the angle between the Earth's magnetic field and the Earth's surface?
Inclination
12
What is the term used for the angular difference between the true north and magnetic variation?
Variation
13
What is the term used for line of force?
Magnetic Flux
14
What is the angle between vertical and horizontal line of force?
Angle of Dip
15
The deviation of the compass from true north is an angle called?
Declination
16
It is a course whose bearing is relative to the meridian. by
True Course
17
Who invented gyroscope?
Jean-Bernard-Leon Foucalt
18
What part of gyro compass used for converting the ship's power supply into the power necessary for operating the static inverter and transmission units?
Power Adopter
19
What part of gyro compass consist of amplifiers and repeater switches
Transmission Unit
20
What part of gyro compass helps for computing and amplifying circuit components?
Control Cabinet
21
What is the term used for the process of rotating object's tendency to maintain it's orientation?
Gyroscopic Motion
22
It is a part of magnetic compass that indicates direction to the Earth's magnetic field or the approximate position of north or south.
Magnetic Needle
23
At what year does magnetic compass used for maritime navigation?
1111-1117
24
What is the term used for a fixed point on the globe?
Geographic North
25
consists of a sensitive element of gyroscope?
Master Compass
26
the ship's heading shown by master compass by means of a signal from the transmission unit.
Repeater Indicates
27
Who First use Magnitic Compass?
Song dynasty
28
The magnetic compass was first invented as a device for divination as early as the Chinese?
Han dynasty and Tang dynasty
29
China by the military for navigational orienteering by?
1040-44
30
Iron or steel which is easily magnetized by induction, but losses its magnetism when the magnetic field is removed?
can be demagnetized once it is magnetized.
soft iron
31
Iron or steel which is NOT readily magnetized by induction, but which retains a high percentage of the magnetism acquired.
Hard iron
32
the line connecting zero magnetic dip.
Aclinic line
33
the lines connecting points of equal magnetic dip
Isoclinic line
34
the direction in which the north end of a compass needle or other freely suspended magnet will point in response to the earth's magnetic field
Magnetic North
35
are rapidly replacing the use of other traditional compasses. However, most military and ships use the gyro compass or magnetic compass if GPS compass could not pick up enough satellite. Many hikers and drivers like this compass due to its relative reliability.
Gps compass
36
In this modern digital world, compass are becoming more popular. These use many of the electronic magnetic sensors which would calculate the accurate direction the compass is pointing
Solid state compass
37
This compass relies on the direction of celestial bodies to find true north, which is used in many circumstances, mainly in the far north and south poles where magnetic compass would become erratic and gyro compass stops working.
Astrocompass
38
It is a special type of compass developed in 19th century which determines the true north. The gyro compass is commonly used in large ships and in other circumstances where the accurate prediction of true north is needed
Gyro compass
39
is used in ships mainly for the purpose of steering. Since the compass is an electronic one, th errors is greatly re
Fluxgate compass
40
It is a sophisticated device designed for highly accurate navigation. The prism sighting arrangement allows the user to read the compass bearings while seeing distant objects.
Prismatic compass
41
for directional readings since the moving card absorbs much of the motion of the boat.
Card compass
42
allowing the user to hold both the map and the compass in one hand while travelling at speed by bike or by canoe.
Thumb compass
43
It is the most affordable compass. This compass includes a magnifying lens for map reading, luminous components for low light conditions and different scales for world wide use.
Base plate compass