Vayudoot Aviation

1. You are homing to overhead a VORTAC and will descend from 7500 QNH to be 1000 AMSL by 6 nm DME. Your groundspeed is 156 knots and the ROD will be 800 feet/min. At what range from the VORTAC do you commence the descent?

15.8 nm

11.7 nm

27.1 nm

30.2 nm

2. On a Transverse Mercator chart, scale is exactly correct along the?

prime meridian and the equator.

meridian of tangency

datum meridian and meridian perpendicular to it.

Equator, parallel of origin and prime vertical

3. Course 040°T, TAS 120 kn, Wind speed = 30 knots. From which direction will the wind give the greatest drift?

230°T

235°T

240°T

215°T

4. What is the source of magnetic variation information in a Flight Management system (FMS)?

The FMS calculates MH and MT from the FMC position

The main directional gyro which is coupled to the magnetic sensor (flux valve) positioned in the wing tip.

Magnetic variation is calculated by each IRS based on the respective IRS position and the aircraft’s magnetic heading

Magnetic variation information is stored in each IRS memory; it is applied to the true heading calculated by the respective IRS

5. Double integration of the output from the East/West accelerometer of the Inertial Navigation System when in NAV mode gives

Vehicle Longitude

Distance E/W

Distance N/S

Velocity E/W

6. What is the reason for seasonal changes in climate?

Because the Earth’s spin axis is inclined to the plane of its orbit round the Sun

Because the distance between the Earth and the Sun varies over a year

Because of the difference between the Tropical Year and the Calendar Year

Because the Earth’s orbital speed round the Sun varies according to the time of the year

7. What is the input to an INS which allows it to compute W/V?

Mach No

IAS

TAS

Altitude and OAT

8. The distance A to B is 90 nm in a straight line. You are 60 nm from A when you fix your position 4 nm to the left of track. What correction do you need to make to arrive at B?

10°

8°

4°

12°

9. On a particular Direct Mercator wall chart, the 180°W to 180°E parallel of latitude at 53N is 133 cm long. What is the scale of the chart at 30S?

1: 21,000,000

1: 30,000,000

1: 25,000,000

1: 18,000,000

10. Fuel flow per HR is 22 US-GAL, total fuel on board is 83 IMP GAL. What is the endurance?

3 hr 12 min

2 hr 15 min

3 hr 53 min

hr 32 min

11. On a triple-fit IRS system, present positions on the CDU

will only differ if one IRS has been decoupled due to a detected malfunction

will not differ as the information is averaged

will only differ if an initial input error of aircraft position has been made

are likely to differ as the information comes from different sources

12. Which of the following can all be stored as five letter waypoint identifiers through the CDU of a B737- 400 Electronic Flight Instrument System?

Waypoint names; navaid identifiers; runway numbers; airport ICAO identifiers

Airway names; navaid identifiers; airport names; waypoint code numbers

Waypoint names; navaid positions; airport ICAO identifiers; airport names

Waypoint names; navaid frequencies; runway codes; airport ICAO identifiers

13. Isogonals are lines of equal

pressure

wind velocity

compass deviation

magnetic variation

14. The term drift refers to the wander of the axis of a gyro in?

any plane

the horizontal plane

the vertical and horizontal plane

the vertical plane

15. Isogonal lines converge as follows

At the North and South Magnetic and Geographical Poles

At the Magnetic equator.

At the North and South Magnetic Poles

At the North Magnetic Pole

16. You are at position 5340N 00800W. What is the QDR from the SHA VOR (5243N 00853W)?

029

037

209

217

17. In what formats can created waypoints be entered into the scratch pad of the B737 - 400 FMS?

Place, Place Bearing/Distance, Along-Track Displacement, Latitude and Longitude

Place Bearing/Distance, Place Bearing/Place Bearing, Across-Track Displacement, Latitude and Longitude

Place Bearing/Distance, Place Distance/Place Distance, Along-Track Displacement, Latitude and Longitude

Place Bearing/Distance, Place Bearing/Place Bearing, Along-Track Displacement, Latitude and Longitude

18. An INS platform is kept at right angles to local gravity by applying corrections for the effects of: i Aircraft manoeuvres ii earth rotation iii transport wander iv coriolis v gyroscopic inertia

ii, iv and v

i, ii,iii and iv

ii, iii and v

i, iii and v

19. The angle between the true great-circle track and the true rhumb-line track joining the following points: A (60S 165W) and B (60S 177E) at the place of departure A, is?

15.6°

9°

7.8°

5.2°

20. Given: True track 180° Drift 8°R Compass Heading 195° Deviation -2° Calculate the variation

9°W

5°W

21°W

25°W

21. 5 hours 20 minutes and 20 seconds hours time difference is equivalent to which change of longitude?

79° 10’

78° 15’

81° 30’

80° 05’

22. What is the dip angle at the South Magnetic Pole?

0°

180°

90°

64°

23. 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

317 knots

330 knots

342 knots

24. Which mode on the CDU of an INS must be selected in order to display initial Great Circle track between 2 waypoints?HDG \ DA b

XTK \ TKE

TK \ GS

DSRTK \ STS

HDG \ DA

25. The circumference of the Earth is approximately

21600 nm

5400 nm

43200 nm

10800 nm

26. The data that needs to be inserted into an Inertial Reference System in order to enable the system to make a successful alignment for navigation is

aircraft position in latitude and longitude

the position of an in-range DME

aircraft heading

airport ICAO identifier

27. You enter the start position of an INS from a ramp at 7019.2N 13946.3W but you incorrectly enter 13946.3E instead of W. You fly to 7019.2N 180E/W without updating the INS in flight. What longitude is indicated on your INS present position display?

09933E

08027E

08027W

09933W

28. A straight line is drawn on a North Polar Stereographic chart joining Point A (7000N 06000W) to Point B (7000N 06000E). What is the initial track direction (going eastwards) of the line at A ?

120° T

330° T

090° T

030° T

29. What is the meaning of the term ‘standard time’?

It is an expression for local mean time.

It is the time zone system applicable only in the USA.

It is the time set by the legal authorities for a country or part of a country.

It is another term for UTC

30. Which of these is a correct statement about the Earth’s magnetic field

The angle of dip is the angle between the vertical and the total magnetic force.

It may be temporary, transient, or permanent.

It acts as though there is a large blue magnetic pole in Northern Canada

It has no effect on aircraft deviation.

31. 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 is not affected by aircraft deviation

It senses the earth’s magnetic field rather than seeks it, so is more sensitive

32. You are flying at a True Mach No of .82 in a SAT of -45°C. At 1000 hours you are 100 nm from the POL DME and your ETA at POL is 1012. ATC ask you to slow down to be at POL at 1016. What should your new TMN be if you reduce speed at 100 nm distance to go?

M .61

M .76

M .68

M .72

33. An aircraft flies a great circle track from 56°N 070°W to 62°N 110°E. The total distance travelled is?

1788 NM

2040 NM

3720 NM

5420 NM

34. What is the radial and DME distance from Connaught VOR/DME (CON, 5355N 00849W) to overhead Abbey Shrule aerodrome( 5336N 00739W)?

124 47 nm

116 46 nm

296 46 nm

304 47 nm

35. 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: 2,000,000

1: 6,000,000

36. From the departure point, the distance to the point of equal time is

inversely proportional to ground speed back

inversely proportional to the total distance to go

proportional to the sum of groundspeed out and groundspeed back

inversely proportional to the sum of ground speed out and ground speed back

37. The purpose of the FMS is to

provide continuous automatic navigation, guidance and manual performance management

provide continuous manual navigation, guidance, and performance management

provide continuous manual navigation, guidance and automatic performance management

provide continuous automatic navigation, guidance, and performance management.

38. Given: IAS 120 kt FL 80 OAT +20°C What is the TAS?

141 kt

102 kt

120 kt

132 kt

39. What is the diameter of the Earth?

40000 km

12732 km

21600 km

6366 km

40. The purpose of the TAS input, from the air data computer, to the Inertial Navigation System is for

the calculation of drift

position update in Attitude mode

position update in Navigation mode

the calculation of wind velocity

41. What is the aircraft position in lat and long given the following (use Jeppesen chart E(LO)1): CRN (5318N 00857W) 18 DME SHA (5243N 00853W) 20 DME Heading 270 M Both ranges DME decreasing

5302N 00843W

5201N 00908W

5301N 00908W

5203N 00843W

42. What is the Rhumb Line track from A (4500N 01000W) to B (4830N 01500W)?

330° T

215° T

150° T

315° T

43. The drift of the azimuth gyro on an inertial unit induces an error in position given by this unit., t being the elapsed time since selecting the MSU from ALIGN to NAVigate. The total error is

Proportional to t/2

Proportional to t

sinusoidal

Proportional to the square of time, t2

44. Track = 090 (T), TAS = 460 knots, W/V = 360 (T) / 100, Variation = 10 E, Deviation = -2. What is compass heading and groundspeed?

070 o 455 knots

079 o 470 knots

068 o 460 knots

069 o 450 knots

45. Alignment of INS and IRS equipments can take place in which of the following modes?

ATT and ALIGN

ALIGN only

ALIGN and ATT

NAV and ALIGN

46. 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

zero

a 9 ° increase

a 9 ° decrease

a 4 ° decrease

47. An aircraft was over ‘Q’ at 1320 hours flying direct to ‘R’. Given: Distance ‘Q’ to ‘R’ 3016 NM True air speed 480 knots Mean wind component ‘out’ -90 kt Mean wind component ‘back’ +75 kt Safe endurance 10:00 HR The distance from ‘Q’ to the Point of Safe Return (PSR) is

1510 NM

2290 NM

1310 NM

2370 NM

48. Reference Jeppesen E(LO)1, position 5211N 00931W, which of the following denotes all the symbols?

civil airport, ILS, NDB

military airport, ILS, NDB

military airport, VOR, ILS

civil airport, VOR, ILS

49. How long does alignment of an IRS (Ring Laser Gyros) normally take at mid-latitudes?

2 minutes

5 minutes

10 minutes

17 minutes

50. What is the UTC time of sunrise in Vancouver, British Columbia, Canada (49N 123 30W) on the 6th December? (In the exam, tables were supplied. The answers given below are based on the tables in your Gen Nav notes)

1552 UTC

2324 UTC

0738 UTC

0724 UTC

Question Bank

Questions for REVISION QUESTION 1