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NAV-RH-MODULE2-TEST LEARN
1.
What is the dip angle at the South Magnetic Pole?
a) 0 deg
b) 90 deg
c) 180 deg
d) 64 deg
2.
What is the value of magnetic dip at the South Magnetic Pole?
a) 360o
b) 180o
c) 090o
d) 0o
3.
The angle between True North and Magnetic North is known as:
a) deviation
b) variation
c) alignment error
d) dip
4.
Isogonic lines connect positions that have:
a) the same variation
b) 0o variation
c) the same elevation
d) the same angle of magnetic dip
5.
At a specific location, the value of magnetic variation:
a) depends on the true heading
b) depends on the type of compass installed
c) depends on the magnetic heading
d) varies slowly over time
6.
What is the definition of magnetic variation?
a) The angle between the direction indicated by a compass and Magnetic North
b) The angle between True North and Compass North
c) The angle between Magnetic North and True North
d) The angle between Magnetic Heading and Magnetic North
7.
The horizontal component of the earth’s magnetic field:
a) is approximately the same at all magnetic latitudes less than 60o
b) weakens with increasing distance from the magnetic poles
c) weakens with increasing distance from the nearer magnetic pole
d) is approximately the same at magnetic latitudes 50oN and 50oS
8.
Isogonals converge at the:
a) Magnetic equator
b) North and South geographic and magnetic poles
c) North magnetic pole only
d) North and South magnetic poles only
9.
If variation is West; then:
a) True North is West of Magnetic North
b) Compass North is West of Magnetic North
c) True North is East of Magnetic North
d) Magnetic North is West of Compass North
10.
Complete the following statement regarding magnetic variation. The charted values of magnetic variation on earth normally change annually due to:
a) a reducing field strength causing numerical values at all locations to decrease
b) magnetic pole movement causing numerical values at all locations to increase
c) magnetic pole movement causing numerical values at all locations to increase or decrease
d) an increasing field strength causing numerical values at all locations to increase
11.
Which of these is a correct statement about the Earth’s magnetic field?
a) It acts as though there is a large blue magnetic pole in Northern Canada
b) The angle of dip is the angle between the vertical and the total magnetic
force
c) It may be temporary, transient, or permanent
d) It has no effect on aircraft deviation
12.
When turning right from 330o (C) to 040o (C) in the northern hemisphere, the reading of a direct reading magnetic compass will:
a) over-indicate the turn and liquid swirl will decrease the effect
b) under-indicate the turn and liquid swirl will increase the effect
c) under-indicate the turn and liquid swirl will decrease the effect
d) over-indicate the turn and liquid swirl will increase the effect
13.
Isogonals are lines of equal:
a) compass deviation
b) magnetic variation
c) pressure
d) wind velocity
14.
A negative (westerly) magnetic variation signifies that:
a) True North is East of Magnetic North
b) True North is West of Magnetic North
c) Compass North is East of Magnetic North
d) Compass North is West of Magnetic North
15.
A line drawn on a chart which joins all points where the value of magnetic variation is zero is called an:
a) isogonal
b) aclinic line
c) agonic line
d) isotach
16.
The angle between True North and Magnetic North is called:
a) compass error
b) deviation
c) variation
d) drift
17.
The value of magnetic variation on a chart changes with time. This is due to:
a) movement of the magnetic poles, causing an increase
b) increase in the magnetic field, causing an increase
c) reduction in the magnetic field, causing a decrease
d) movement of the magnetic poles, which can cause either an increase or a decrease
18.
The agonic line:
a) is midway between the magnetic North and South poles
b) follows the geographic equator
c) is the shorter distance between the respective True and Magnetic North and South poles
d) Follows separate paths out of the North polar regions, one currently running through Western Europe and the other through the USA
19.
Isogonal lines converge as follows:
a) at the North Magnetic Pole
b) at the North and South Magnetic and Geographical Poles
c) at the North and South Magnetic poles
d) at the Magnetic equator
20.
Which of the following statements concerning earth magnetism is completely correct?
a) An isogonal is a line which connects places with the same magnetic
variation; the agonic line is the line of zero magnetic dip
b) An isogonal is a line which connects places with the same magnetic
variation; the aclinic is the line of zero magnetic dip
c) An isogonal is a line which connects places of equal dip; the aclinic is the
line of zero magnetic dip
d) An isogonal is a line which connects places with the same magnetic
variation; the aclinic connects places with the same magnetic field
strength
21.
An Agonic line is a line that connects:
a) positions that have the same variation
b) positions that have 0o variation
c) points of equal magnetic dip
d) points of equal magnetic horizontal field strength
22.
The Earth can be considered as being a magnet with the:
a) blue pole near the north pole of the earth and the direction of the magnetic
force pointing straight up from the earth’s surface
b) red pole near the north pole of the earth and the direction of the magnetic
force pointing straight down to the earth’s surface
c) blue pole near the north pole of the earth and the direction of the magnetic
force pointing straight down to the earth’s surface
d) red pole near the north pole of the earth and the direction of the magnetic
force pointing straight up from the earth’s surface
23.
When is the magnetic compass most effective?
a) In the region of the magnetic South Pole
b) About midway between the magnetic poles
c) In the region of the magnetic North Pole
d) On the geographic equator
24.
At the magnetic equator:
a) dip is zero
b) variation is zero
c) deviation is zero
d) the isogonal is an agonic line
25.
The value of magnetic variation:
a) varies between maximum values of 45oE and 45oW
b) is a maximum of 180o
c) is always 0o at the magnetic equator
d) is never greater than 90o
26.
Where is a compass most effective?
a) About midway between the earth’s magnetic poles
b) In the region of the magnetic South pole
c) In the region of the magnetic North pole
d) On the geographic equator
27.
A magnetic compass will be most effective at:
a) a position roughly half way between the magnetic poles
b) the South Magnetic Pole
c) the North Magnetic Pole
d) the Equator
28.
When accelerating on a westerly heading in the northern hemisphere, the compass card of a direct reading magnetic compass will turn:
a) clockwise giving an apparent turn towards the north
b) clockwise giving an apparent turn towards the south
c) anti-clockwise giving an apparent turn towards the north
d) anti-clockwise giving an apparent turn towards the south
29.
When a magnetized compass needle is freely suspended in the Earth’s magnetic field, when free from extraneous magnetic influence, it will align itself with:
a) true North
b) magnetic North
c) absolute North
d) relative North
30.
When a magnetized compass needle is freely suspended in the Earth’s magnetic field, and affected by extraneous magnetic influence, it will align itself with:
a) true North
b) magnetic North
c) compass North
d) relative North
31.
When is Magnetic North Pole is East of the True North Pole variation is:
a) + and easterly
b) - and easterly
c) - and westerly
d) + and westerly
32.
When the Magnetic Pole is West of the True North pole variation is:
a) + and easterly
b) - and easterly
c) - and westerly
d) + and westerly
33.
An isogonal is:
a) a line of equal wind speed
b) a line of equal magnetic deviation
c) a line of zero magnetic variation
d) a line of equal magnetic variation
34.
The agonic line is:
a) a line of zero magnetic deviation
b) a line of equal magnetic deviation
c) a line of zero magnetic variation
d) a line of equal magnetic variation
35.
What is deviation?
a) The angle between magnetic North and compass North
b) The angle between magnetic North and True North
c) The angle between True North and compass North
d) The angle between True North and magnetic North
36.
Deviation is:
a) an error to be added to magnetic headings
b) a correction to be added to magnetic heading to obtain compass heading
c) a correction to be added to compass heading to obtain magnetic heading
d) an error to be added to compass heading to obtain magnetic heading
37.
The force acting on the needle of a direct reading compass varies:
a) directly with the horizontal component of the earth’s magnetic field
b) directly with the vertical component of the earth’s magnetic field
c) inversely with both vertical and horizontal components of the earth’s magnetic field
d) inversely with the horizontal component of the earth’s magnetic field
38.
The horizontal component of the earth’s magnetic field:
a) weakens with increasing distance from the nearer magnetic pole
b) weakens with increasing distance from the magnetic poles
c) is stronger closer to the magnetic equator
d) is approximately the same at all magnetic latitudes less than 60o
39.
The lines on a chart joining places of equal magnetic dip are called:
a) Aclinic lines
b) Isogonals
c) Isoclinals
d) Agonic lines
40.
An aircraft is accelerating on a westerly heading in the Northern Hemisphere; the effect on a Direct Reading Compass will result in:
a) An apparent turn to the West
b) An indication of a turn to the North
c) A decrease in the indicated reading
d) An indication of a turn to the South
41.
When should a DRC be “swung”?
a) Every 6 months
b) Following a change of magnetic latitude
c) For night use
d) After flying in an area where lightning is visible
42.
An aircraft, in the Northern Hemisphere, turns right from 330(C) in a Rate 1 Turn for 30 secs. As the aircraft rolls out, does the compass overread or underread and will liquid swirl increase or decrease the error:
a) Underread Decrease
b) Underread Increase
c) Overread Decrease
d) Overread Increase
43.
An aircraft is accelerating on a westerly heading in the Northern Hemisphere. The effect on a Direct Reading Magnetic Compass is:
a) Underreads North
b) Underreads South
c) Overreads North
d) Overreads South
44.
What is the maximum possible value of Dip Angle?
a) 66o
b) 180o
c) 90o
d) 45o
45.
When decelerating on a westerly heading in the Northern Hemisphere, the compass card of a direct reading magnetic compass will turn:
a) clockwise giving an apparent turn toward the south
b) anti-clockwise giving an apparent turn towards the south
c) clockwise giving an apparent turn towards the north
d) anti-clockwise giving an apparent turn towards the north
46.
When an aircraft on a westerly heading on the northern hemisphere accelerates,the effect of the acceleration error causes the magnetic compass to:
a) lag behind the turning rate of the aircraft
b) indicate a turn towards the north
c) indicate a turn towards the south
d) to turn faster than the actual turning rate of the aircraft
47.
In Northern Hemisphere, during an acceleration in an easterly direction, the magnetic compass will indicate:
a) a decrease in heading
b) an increase in heading
c) an apparent turn to the South
d) a heading of East
48.
Concerning direct reading magnetic compasses, in the northern hemisphere, it can be said that:
a) on an Easterly heading, a longitudinal acceleration causes an apparent turn to the South
b) on an Easterly heading, a longitudinal acceleration causes an apparent turn
to the North
c) on a Westerly heading, a longitudinal acceleration causes an apparent turn
to the South
d) on a Westerly heading, a longitudinal deceleration causes an apparent turn
to the North
49.
The angle between Magnetic North and Compass North is called:
a) magnetic variation
b) compass error
c) compass deviation
d) alignment error
50.
You are in the Northern hemisphere, heading 135C on a Direct Reading Magnetic Compass. You turn right in a Rate 1 turn for 30 seconds. Do you roll out on an indicated heading of:
a) greater than 225
b) less than 225
c) equal to 225
d) not possible to determine
51.
When turning right from 330o(C) to 040o(C) in the northern hemisphere the reading of a direct reading magnetic compass will:
a) over-indicate the turn and liquid swirl will decrease the effect
b) under-indicate the turn and liquid swirl will increase the effect
c) under-indicate the turn and liquid swirl will decrease the effect
d) over-indicate the turn and liquid swirl will increase the effect
52.
Compass deviation is defined as the angle between:
a) True North and Magnetic North
b) Magnetic North and Compass North
c) True North and Compass North
d) The horizontal and the total intensity of the earth’s magnetic field
53.
The value of variation:
a) is zero at the magnetic equator
b) has a maximum value of 180 deg
c) has a maximum value of 45E or 45W
d) cannot exceed 90 deg
54.
Deviation applied to magnetic heading gives:
a) magnetic course
b) true heading
c) compass heading
d) magnetic track
55.
At the magnetic equator, when accelerating after take off on heading West, a direct reading compass:
a) underreads the heading
b) overreads the heading
c) indicates the correct heading
d) indicates a turn to the south
56.
An aircraft in the northern hemisphere makes an accurate rate one turn to the right/starboard. If the initial heading was 330o after 30 seconds of the turn the direct reading magnetic compass should read:
a) 060o
b) less than 060o
c) more than 060o
d) more or less than 060o depending on the pendulous suspension used
57.
When accelerating on an easterly heading in the Northern hemisphere, the compass card of a direct reading magnetic compass will turn:
a) anti-clockwise giving an apparent turn toward the south
b) clockwise giving an apparent turn toward the south
c) anti-clockwise giving an apparent turn toward the north
d) clockwise giving an apparent turn toward the north
58.
You are turning from 330o to 040o in the Northern hemisphere using timing. You stop the turn at the correct time. Before the direct indicating magnetic compass settles down, does it over-read or under-read, and does the effect of liquid swirl increase or decrease?
a) Under-read; increase
b) Over-read; decrease
c) Under-read; decrease
d) Over-read; increase
59.
Which of the following statements is correct concerning the effect of turning errors on a direct reading compass?
a) Turning errors are greatest on north/south headings, and are least at high latitudes
b) Turning errors are greatest on east/west headings, and are least at high latitudes
c) Turning errors are greatest on north/south headings, and are greatest at high latitudes
d) Turning errors are greatest on east/west headings, and are greatest at high latitudes
60.
Permanent magnetism in aircraft arises chiefly from:
a) exposure to the earth’s magnetic field during normal operation
b) hammering, and the effect of the earth’s magnetic field, whilst under construction
c) the combined effect of aircraft electrical equipment and the earth’s magnetic field
d) the effect of internal wiring and exposure to electrical storms
61.
One purpose of a compass calibration is to reduce the difference, if any, between:
a) compass north and magnetic north
b) compass north and true north
c) true north and magnetic north
d) compass north and the lubber line
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