Question Bank

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

2. On the Polar Stereographic projection, a Great Circle appears as

3. An aircraft at FL370 is required to commence descent at 120 NM from a VOR and to cross the facility at FL130. If the mean GS for the descent is 288 kt, the minimum rate of descent required is

4. On a Lambert chart, the constant of the cone is .78585. What is the parallel of tangency?

5. Required course 045°T, W/V = 190 /30, FL = 55 @ ISA, Variation = 15°E. CAS = 120 knots. What is mag heading and G/S?

6. The initial straight track from A(75N 60E) to B (75N 60W) on a Polar Stereographic chart is

7. Given: Heading 165(M), Variation 25W, Drift 10° R, G/S 360 knots. At ‘A’ your relative bearing to an NDB is 325R. Five minutes later, at ‘B’, the relative bearing is 280R. What is the True Bearing and Distance from ‘B’ to the NDB?

8. Lines of latitude on a chart are always

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

10. Given: TAS=375 Trk=335 °T W/V=340 °T/50 What is heading and Groundspeed?

11. 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)

12. 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?

13. In an Inertial Navigation System, what is the output of the first stage North/South integrator?

14. IRS differs from INS in that it

15. 5 hours 20 minutes and 20 seconds hours time difference is equivalent to which change of longitude?

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

17. Given: A polar stereographic chart whose grid is aligned with the zero meridian. Grid track 344° , Longitude 115° 00’W, calculate the true course? (Assume N Hemisphere)

18. 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?

19. What method of entering waypoints can be used on all INS equipments?

20. The angle between True North and Magnetic north is known as

21. Given: True Course 300° Drift 8°R Variation 10°W Deviation -4° Calculate the compass heading.

22. What is the formula for Conversion Angle?

23. What is the approximate course (T) and distance between Waterford NDB (WTD, 5212N 00705W) and Sligo NDB (SLG, 5417N 00836W)?

24. An aircraft departs Guam ( 13N 145E) at 2300 Standard Time on 30th April local date. Flight Time to Los Angeles, California, USA (34N 118W) is 11 hours 15 minutes. What is the California Standard Time and local date of arrival? Assume Summer Time is being kept.

25. Please refer to Appendix B (attached at back). Assume a North polar stereographic chart whose grid is aligned with the Greenwich meridian. An aircraft flies from the geographic north pole for a distance of 480 nm along the 110° E meridian, then follows a grid track of 154° for a distance of 300 nm. Its position is now approximately

26. 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?

27. The principle of ‘Schuler Tuning’, as applicable to INS / IRS systems, is applicable to

28. What is the diameter of the Earth?

29. The value of magnetic variation on a chart changes with time. This is due to

30. The gyros are fixed but the accelerometers are stabilised

31. A Rhumb line is

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

33. A useful method of a pilot resolving, on a visual flight, any uncertainty in the aircraft’s position is to maintain visual contact with the ground and

34. On a Direct Mercator chart, a rhumb line appears as a

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

36. Given: Position A is 60N 020W, Position B is 60N 021W, and Position C is 59N 020W, what are, respectively, the distances from A to B and from A to C?

37. Your pressure altitude is FL55, the QNH is 998, and the SAT is +30°C. What is Density Altitude?

38. At the magnetic equator

39. An aircraft at position 8500N 02000E flies a Rhumb Line track of 075°T. What will be its path over the Earth?

40. You are heading 080°T when you get a range and bearing fix from your AWR on a headland at 185 nm 30° left of the nose. What true bearing do you plot on the chart?

41. What is the shortest distance between Point ‘A’ (3543N 00841E) and Point ‘B’ (5417N 17119W)?

42. The orbit of the Earth round the Sun is elliptical. An ellipse has 2 foci. Which of the following is a correct statement?

43. In an IRS

44. Please refer to Appendix A. Which of the following is the symbol for an exceptionally high (over 1000 feet AGL) lighted obstruction?

45. What are the positions (in the order left to right) on the Boeing 737-400 IRS MSU mode selector?

46. TAS = 240 knots. Track is 180°T. The relative bearing from an NDB is 315R at 1410. At 1420 the bearing has changed to 270R. What is your distance from the NDB at 1420?

47. An aircraft is at FL140 with an IAS of 210 and a true OAT of -5 °C. The wind component is -35 knots. When the aircraft is at 150 nm from a reporting point, ATC request the crew to lose 5 minutes by the time they get to the beacon. How much do they need to reduce IAS?

48. Given the following: Magnetic heading: 060° Magnetic variation: 8°W Drift angle: 4° right What is the true track?

49. The pressure alt is 29000 feet and the SAT is -55°C. What is density altitude?

50. What is at 5211N 00932W ? - (use E(LO)1)