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WorksheetsCPL Acft Tech - Magnetic compass
Total questions: 15
Worksheet time: 8mins
Lines of magnetic force on the earth run between...
the true north and south poles
the magnetic north and south poles
the isogonal line at the north pole and the agonic line at the south pole
the agonic line at the north pole and the isogonal line at the south pole
When must a compass swing be performed?
Select all options that apply
Every 50 hr check
Every 100 hr check
After an engine change
After an aircraft is struck by lightning
After a new transponder is installed
A line joining points of equal magnetic variation is called a/an..
isogonal
isoclinal
deviation line
agonic variation
What is the purpose of the fluid in a compass?
Select all that apply
Damping
Buoyancy
Lubrication
Cooling
In the southern hemisphere, you are on a magnetic heading of 090 and wish to turn left onto North. What compass heading should you turn to?
330 degrees
000 degrees
030 degrees
060 degrees
Acceleration error exists due to...
pendulous suspension
residual dip
deviation
variation
If you were flying on a heading of 180 degrees magnetic and accelerated your aircraft from 90 to 130 knots, what would you expect to see the compass do?
Nothing
Swing to the North
Swing to the East
Swing to the West
Component Z is the...
vertical component of the earth's magnetic field which acts on a compass needle
horizontal component of the earth's magnetic field which acts on a compass needle
allowance for residual dip made in the manufacture of the compass
allowance for the angle of dip made in the manufacture of the compass
Over the equator, the angle of dip is how many degrees
zero
30
45
90
Select all of the serviceability checks applicable to an aircraft compass
compass liquid has no bubbles
mounting is secure
compass liquid is clear
deviation adjustment screws are tight
deviation card is present and in date
The angle between the direction of true north and magnetic north at any given point on earth is...
variation
deviation
angular dip
angular incidence
Due to the angle of dip, in the southern hemisphere the ________ seeking pole of a magnet will slant ________ towards the south pole
south , downards
north , downwards
south , upwards
north , upwards
The north-seeking pole of a magnet is called the _______
north pole
south pole
delineator
lubber line
A compass deviation card tells you that to steer a magnetic heading of 180o you should steer 177 degrees. This means that for that heading, the compass deviation is...
3o east
3o west
within limits and so does not need applying
The difference between compass heading and magnetic heading is...
variation
deviation
track error
heading error
