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Question Bank
Questions for REVISION QUESTION 1
Answer the following questions
Test Mode
Training Mode
1. The chart that is generally used for navigation in polar areas is based on a
Stereographic projection
Direct Mercator Projection
Gnonomic projection
Lambert conformal projection
2. On a chart, meridians at 43N are shown every 10 degrees apart. This is shown on the chart by a distance of 14 cm. What is the scale?
1: 5,000,000
1: 4,000,000
1: 6,000,000
1: 2,000,000
3. Gyro-compassing in an INS
is possible in flight as the accelerometers can differentiate between acceleration due to aircraft movement and initial alignment errors
is not possible in flight as the accelerometers can differentiate between acceleration due to aircraft movement and initial alignment errors
is possible in flight as the accelerometers cannot differentiate between acceleration due to aircraft movement and initial alignment errors
is not possible in flight as the accelerometers cannot differentiate between acceleration due to aircraft movement and initial alignment errors
4. What is the diameter of the Earth?
6366 km
21600 km
40000 km
12732 km
5. An aircraft starts at position 0410S 17822W and heads true north for 2950 nm,then turns 90 degrees left, and maintains a rhumb line track for 314 kilometers. What is its final position?
4500N 17422W
4500N 17738E
5500N 17738E
5500N 17422W
6. On a Polar Stereographic map, a straight line is drawn from position A (70N 102W) to position B (80N 006E). The point of highest latitude along this line occurs at longitude 035 W. What is the initial straight-line track angle from A to B, measured at A?
023°T
077°T c
049°T
229°T
7. (For this question use Annex C) Complete line 5 of the ‘FLIGHT NAVIGATION LOG’, position ‘J’ to ‘K’. What is the HDG°(M) and ETA?
HDG 320° - ETA 1412 UTC
HDG 337° - ETA 1322 UTC
HDG 337° - ETA 1422 UTC
HDG 320° - ETA 1432 UTC
8. How do Rhumb lines (with the exception of meridians) appear on a Polar Stereographic chart?
convex to the nearer pole
concave to the nearer pole
straight lines
ellipses round the pole
9. During a low level flight 2 parallel roads are crossed at right angles by an aircraft. The time between these roads can be used to check the aircraft
heading
groundspeed
track
drift
10. In an Inertial Navigation System, what is the output of the first stage North/South integrator?
velocity along the local meridian
change of latitude
groundspeed
latitude
11. An aircraft at position 0000 N/S 16327W flies a track of 225°T for 70 nm. What is its new position?
0049N 16238W
0049N 16416W
0049S 16238W
0049S 16416W
12. IRS differs from INS in that it
Has a longer spin-up time and is not affected by vertical accelerations due to gravity.
Has a shorter spin-up time and suffers from laser lock.
Does not need to correct for coriolis and central acceleration.
Does not experience Schuler errors as accelerometers are strapped down and are not rotated by a V/R feedback loop.
13. At the magnetic equator
Deviation is zero
The isogonal is an agonic line
Dip is zero
Variation is zero
14. OAT = +35°C, Pressure alt = 5000 feet. What is true alt?
5550 feet
5320 feet
4550 feet
4290 feet
15. On a Direct Mercator chart, great circles are shown as
Straight lines
Rhumb lines
Curves convex to the nearer pole
Curves concave to the nearer pole
16. In an Inertial Navigation System (INS), Ground Speed (GS) is calculated
by integrating gyro precession in N/S and E/W directions respectively
from TAS and W/V from RNAV data
from TAS and W/V from Air Data Computer (ADC)
by integrating measured acceleration
17. In the Boeing 737-400 FMS, the CDU is used to
automatically initialise the IRS and FMC with dispatch information
manually initialise the IRS and FMC with dispatch information
manually initialise the Flight Director System and FMC with dispatch information
manually initialise the Flight Director System, FMC and Autothrottle with dispatch information
18. An aircraft has a TAS of 300 knots and a safe endurance of 10 hours. If the wind component on the outbound leg is 50 knots head, what is the distance to the point of safe endurance?
1458 nm
1500 nm
1544 nm
1622 nm
19. The following waypoints are entered into an inertial navigation system (INS) WPT 1: 60N 30W WPT 2: 60N 20W WPT 3: 60N 10W The inertial navigation is connected to the automatic pilot on the route WP1 → WP2 → WP3. The track change on passing WPT 2 will be approximately
a 9 ° increase
a 9 ° decrease
zero
a 4 ° decrease
20. What are the levels of message on the Boeing 737-400 FMC?
Urgent and Routine
Urgent and Advisory
Alert and Advisory
Priority and Alerting
21. On a Lambert’s chart the constant of the cone is 0.80. A is at 53N 04W. You plan to fly to B. The initial Lambert’s chart straight-line track is 070T and the Rhumb Line track from A to B is 082T. What is the longitude of B?
15E
26E
11E
34W
22. Civil Twilight occurs between
12° and 18° below the horizon
Sunset and 6° below the horizon
6° and 12° below the horizon
Sunrise and sunset
23. On a chart, 49 nautical miles is represented by 7.0 centimetres. What is the scale?
1 / 1,156,600
1 / 1,296,400
1 / 2,015,396
1 / 700,000
24. Reference Jeppesen E(LO)1, position 5211N 00931W, which of the following denotes all the symbols?
military airport, ILS, NDB
civil airport, ILS, NDB
military airport, VOR, ILS
civil airport, VOR, ILS
25. An aircraft is flying around the Earth eastwards along the 60N parallel of latitude at a groundspeed of 240 knots. At what groundspeed would another aircraft have to fly eastwards along the Equator to fly once round the Earth in the same journey time?
600 knots
240 knots
120 knots
480 knots
26. What is the reason for seasonal changes in climate?
Because the Earth’s orbital speed round the Sun varies according to the time of the year
Because of the difference between the Tropical Year and the Calendar Year
Because the distance between the Earth and the Sun varies over a year
Because the Earth’s spin axis is inclined to the plane of its orbit round the Sun
27. On the Jeppesen E(LO)1, Kerry (5210.9N 00932.0W) is 41 nm DME, Galway (5318.1N 00856.5W) is 50 nm DME. What is your position?
5219N 00809W
5242N 00827W
5255N 00819W
5230N 00834W
28. What is the advantage of the remote indicating compass (slaved gyro compass) over the direct reading magnetic compass?
It is connected to a source of electrical power and so is more accurate
It is lighter
It senses the earth’s magnetic field rather than seeks it, so is more sensitive
It is not affected by aircraft deviation
29. The initial straight track from A(75N 60E) to B (75N 60W) on a Polar Stereographic chart is
330°
030°
360°
060°
30. Given: For take-off an aircraft requires a headwind component of at least 10 kt and has a crosswind limit of 35 kt. The angle between the wind direction and the runway is 60°. Calculate the maximum and minimum allowable wind speeds
12 kt and 38 kt
18 kt and 50 kt
20 kt and 40 kt
15 kt and 43 kt
31. A Lambert conformal conic chart has a constant of the cone of 0.80. A straight line course drawn on this chart from A (53°N 004°W) to B is 080° at A; course at B is 092°. What is the longitude of B?
011°E
008°E
009°36’E
019°E
32. Heading is 156°T, TAS is 320 knots, W/V is 130/45. What is your true track?
222
104
152
160
33. The circumference of the Earth is approximately
43200 nm
21600 nm
5400 nm
10800 nm
34. The value of magnetic variation on a chart changes with time. This is due to
Movement of the magnetic poles, which can cause either an increase or a decrease
Increase in the magnetic field, causing an increase
Movement of the magnetic poles, causing an increase
Reduction in the magnetic field, causing a decrease
35. Please refer to Annex A. Which is the symbol for a VOR?
13
4
5
14
36. The rhumb-line distance between points A (60° 00’N 002° 30’E) and B (60° 00’N 007° 30’W) is
300 nm
600 nm
150 nm
450 nm
37. An aircraft at position 2700N 17000W travels 3000 km on a track of 180°T, then 3000 km on a track of 090°T, then 3000 km on a track of 000°T, then 3000 km on a track of 270°T. What is its final position?
0000N/S 17000W
2700N 14300W
2700N 17000W
2700N 17318W
38. You leave A to fly to B, 475 nm away, at 1000 hours. Your ETA at B is 1130. At 1040, you are 190 nm from A. What groundspeed is required to arrive on time at B?
360 knots
342 knots
317 knots
330 knots
39. What is a line of equal magnetic variation?
An isogonal
An isovar
An isocline
An isogriv
40. Your position is 5833N 17400W. You fly exactly 6 nm eastwards. What is your new position?
5833N 17411.5W
5833N 17355W
5833N 17340W
5833N 17348.5W
41. You are at FL 150 and the SAT is -5°C. You are over an airport with an elevation of 720 feet. The QNH is 1003. Assume 27 feet = 1HPa. What is your true height?
14300 feet
15600 feet
14700 feet
15300 feet
42. You are on a heading of 105°C, deviation 3 E. WTD NDB (5211.3N 00705.0W) bears 013 R, CRK VOR (5150.4N 00829.7W) QDM is 211. What is your position? (Use Jeppesen E(LO)1)
5228N 00802W
5245N 00757W
5217N 00745W
5412N 00639W
43. In an INS, what is the output of the E/W second-stage integrator?
Velocity N/S
Distance N/S
Distance E/W
Velocity E/W
44. Alignment of INS and IRS equipments can take place in which of the following modes?
ALIGN only
NAV and ALIGN
ALIGN and ATT
ATT and ALIGN
45. What is the average true track and distance between WTD NDB (5211.3N 00705.0W) and FOY NDB (5234.0N 00911.7W) - use your Jeppesen E(LO)1 Track Dist
286 81
294 81
294 76
286 76
46. At what times of the year does the length of the hours of daylight change most rapidly?
Spring Equinox and Autumn Equinox
Spring Equinox and Summer Solstice
Summer Solstice and Winter Solstice
Autumn Equinox and Winter Solstice
47. In which month does aphelion occur?
March
November
July
January
48. An aircraft is flying TAS 180 knots and tracking 090°T. The W/V is 045/50. How far can the aircraft fly out from its base and return within 1 hour?
102 nm
111 nm
74 nm
85 nm
49. The purpose of the TAS input, from the air data computer, to the Inertial Navigation System is for
position update in Attitude mode
position update in Navigation mode
the calculation of wind velocity
the calculation of drift
50. An aircraft on the Equator accelerates whilst traveling westwards. What will be the effect on a direct reading compass?
Indicates an increase in heading
No change
Indicates an apparent turn to the North
Indicates a decrease in heading
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