CDC 2a951n Vol 4
- 1.
1. (601) The equator is
- A.
Not a great circle.
- B.
Equal distance from the poles.
- C.
A plane parallel to the polar axis.
- D.
The only fixed reference point on the Earth.
Correct Answer
B. Equal distance from the poles. -
- 2.
2. (601) What are the circles running east-west around the Earth called?
- A.
Parallels of equator.
- B.
Parallels of latitude.
- C.
Meridians of equator.
- D.
Meridians of longitude.
Correct Answer
B. Parallels of latitude. -
- 3.
3. (601) Parallels of latitude are parallel to the
- A.
Equator.
- B.
Polar axis.
- C.
Greenwich meridian.
- D.
International time line.
Correct Answer
A. Equator. -
- 4.
4. (601) What values do parallels between the equator and the north pole carry?
- A.
0° to 90°N.
- B.
0° to 90°S.
- C.
0° to 180°N.
- D.
0° to 180°S.
Correct Answer
A. 0° to 90°N. -
- 5.
5. (601) What values do parallels between the equator and the south pole carry?
- A.
0° to 90°N.
- B.
0° to 90°S.
- C.
0° to 180°N.
- D.
0° to 180°S.
Correct Answer
B. 0° to 90°S. -
- 6.
6. (601) The prime meridian is the
- A.
Circle designated 10 degrees latitude.
- B.
Meridian designated the 180 degrees meridian.
- C.
Meridian passing through Greenwich, England.
- D.
Circle equal distance between the north and south poles.
Correct Answer
C. Meridian passing through Greenwich, England. -
- 7.
7. (601) The international dateline is the
- A.
Circle designated 0 degrees latitude.
- B.
Meridian designated the 180 degrees meridian.
- C.
Meridian passing through Greenwich, England.
- D.
Circle equal distance between the north and south poles.
Correct Answer
B. Meridian designated the 180 degrees meridian. -
- 8.
8. (601) From the prime meridian east to the international dateline, what values are assigned to meridians?
- A.
0° to 90° east.
- B.
0° to 90° west.
- C.
0° to 180° east.
- D.
0° to 180° west.
Correct Answer
C. 0° to 180° east. -
- 9.
9. (601) From the prime meridian west to the international dateline, what values are assigned to meridians?
- A.
0° to 90° east.
- B.
0° to 90° west.
- C.
0° to 180° east.
- D.
0° to 180° west.
Correct Answer
D. 0° to 180° west. -
- 10.
10. (601) What is the primary reference in navigation?
- A.
0°.
- B.
90°.
- C.
North.
- D.
Equator.
Correct Answer
C. North. -
- 11.
11. (601) What is North on a compass rose?
- A.
0°.
- B.
90°.
- C.
180°.
- D.
270°.
Correct Answer
A. 0°. -
- 12.
12. (601) Relative bearing of an aircraft is the direction measured clockwise from
- A.
Zero degrees to the object.
- B.
The object to true north.
- C.
True north to the object.
- D.
The aircraft heading to the object.
Correct Answer
D. The aircraft heading to the object. -
- 13.
13. (601) If your aircraft is flying with a true heading of 320° and your destination point is located at a true bearing of 270°, what is your relative bearing to the destination point?
- A.
50°.
- B.
270°.
- C.
310°.
- D.
320°.
Correct Answer
C. 310°. -
- 14.
14. (601) If you flew along the equator from 0°N10°E to 0°N15°E, how many nautical miles would you have flown?
- A.
250 NM
- B.
300 NM.
- C.
350 NM.
- D.
400 NM.
Correct Answer
B. 300 NM. -
- 15.
15. (602) What is the effect of wind on an aircraft?
- A.
Slight.
- B.
Negligible.
- C.
Significant.
- D.
Unimportant.
Correct Answer
C. Significant. -
- 16.
16. (602) How is wind moving from 225 degrees towards 45 degrees at a speed of 15 knots expressed?
- A.
45°/15 knots.
- B.
225°/15 knots.
- C.
225° to 45°/15 knots.
- D.
45° from 225°/15 knots.
Correct Answer
B. 225°/15 knots. -
- 17.
17. (602) The sideward displacement of an aircraft by the wind is called
- A.
Yaw.
- B.
Drift.
- C.
Deviation.
- D.
Groundspeed.
Correct Answer
B. Drift. -
- 18.
18. (602) What is the rate of movement of an aircraft relative to the Earth's surface called?
- A.
Drift.
- B.
Airspeed.
- C.
Velocity.
- D.
Groundspeed.
Correct Answer
D. Groundspeed. -
- 19.
19. (602) What are the effects of a 180 degrees/20 knot wind on an aircraft's ground speed and track if the aircraft is flying a true heading of 180 degrees?
- A.
Increase in ground speed with right drift.
- B.
Decrease in ground speed with right drift.
- C.
Increase in ground speed with no change in track.
- D.
Decrease in ground speed with no change in track.
Correct Answer
D. Decrease in ground speed with no change in track. -
- 20.
20. (602) What is used to correct true heading and allow the aircraft to make good the desired true course?
- A.
Drift correction.
- B.
Wind disbursement.
- C.
Airspeed correction.
- D.
Ground speed correction.
Correct Answer
A. Drift correction. -
- 21.
21. (602) A vector diagram that shows the effect of the wind on the flight of an aircraft is called the
- A.
Flight path.
- B.
Wind triangle.
- C.
Navigation chart.
- D.
Destination chart.
Correct Answer
B. Wind triangle. -
- 22.
22. (602) What is located 1,000 nautical miles south of the north pole at approximately 73°N 100°W?
- A.
North pole.
- B.
South pole.
- C.
Magnetic north.
- D.
Magnetic south.
Correct Answer
C. Magnetic north. -
- 23.
23. (602) From where are true directions measured?
- A.
Equator.
- B.
Zero degrees meridian.
- C.
Magnetic poles.
- D.
Geographical poles.
Correct Answer
D. Geographical poles. -
- 24.
24. (602) On navigation charts, the lines that connect points of equal magnetic variation are called
- A.
Agonic lines.
- B.
Isogonic lines.
- C.
Variation lines.
- D.
Deviation lines.
Correct Answer
B. Isogonic lines. -
- 25.
25. (602) On navigation charts, the lines that connect points of zero magnetic variation are called
- A.
Agonic lines.
- B.
Isogonic lines.
- C.
Variation lines.
- D.
Deviation lines.
Correct Answer
A. Agonic lines. -
- 26.
26. (603) The basic principle involved with inertial navigation is the measurement of
- A.
Wind.
- B.
Airspeed.
- C.
Wind resistance.
- D.
Aircraft acceleration.
Correct Answer
D. Aircraft acceleration. -
- 27.
27. (603) What is established by an inertial navigation system?
- A.
Altitude.
- B.
Coordinate system.
- C.
Frame of reference.
- D.
Frame of displacement.
Correct Answer
C. Frame of reference. -
- 28.
28. (603) Which is not a basic inertial navigation system component?
- A.
Platform.
- B.
Integrator.
- C.
Summing unit.
- D.
Accelerometer.
Correct Answer
C. Summing unit. -
- 29.
29. (603) What component of an inertial navigation system is used to measure aircraft movement?
- A.
Computer.
- B.
Platform.
- C.
Integrator.
- D.
Accelerometer.
Correct Answer
D. Accelerometer. -
- 30.
30. (603) The accelerometers in an inertial navigation system must be protected from
- A.
Motion and pressure changes.
- B.
Magnetic and motion changes.
- C.
Temperature and pressure changes.
- D.
Temperature and magnetic changes.
Correct Answer
C. Temperature and pressure changes. -
- 31.
31. (603) How many inertial navigation system accelerometers are needed to measure acceleration in all directions in an aircraft?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
Correct Answer
C. Three. -
- 32.
32. (603) The changing of position with respect to some other body is called
- A.
Speed.
- B.
Motion.
- C.
Velocity.
- D.
Reference.
Correct Answer
B. Motion. -
- 33.
33. (603) What is the rate at which motion is occurring without regard to direction?
- A.
Speed.
- B.
Motion.
- C.
Velocity.
- D.
Reference.
Correct Answer
A. Speed. -
- 34.
34. (603) The rate at which motion is occurring in a known or given direction is called
- A.
Speed.
- B.
Motion.
- C.
Velocity.
- D.
Reference.
Correct Answer
C. Velocity. -
- 35.
35. (603) How many integrators must be used to produce distance in an inertial navigation system?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
Correct Answer
B. Two. -
- 36.
36. (604) The inertial navigation unit (INU) section of the embedded global positioning and inertial navigation unit (EGI) consists of
- A.
Two ring laser gyros and two accelerometers.
- B.
Three ring laser gyros and three accelerometers.
- C.
Two ring laser gyros, two accelerometers, and two synchro repeaters.
- D.
Three ring laser gyros, three accelerometers, and three synchro repeaters.
Correct Answer
B. Three ring laser gyros and three accelerometers. -
- 37.
37. (604) The inertial navigation system (INS) provides data to the information management system/flight management system to compute all of the following except
- A.
Altitude.
- B.
System status.
- C.
Present position.
- D.
Grid mode heading.
Correct Answer
A. Altitude. -
- 38.
38. (604) If the accelerometers associated with the inertial navigation unit (INU) ring laser gyro senses an applied acceleration, the accelerometer pendulum will move in response and
- A.
Causes a stability circuit to generate a voltage.
- B.
Causes a single-axis sensor to generate voltage.
- C.
Causes a proximity detector to generate a voltage.
- D.
Causes a fringe pattern detector to generate a voltage.
Correct Answer
C. Causes a proximity detector to generate a voltage. -
- 39.
39. (604) Which of the following navigation data is not generated by the inertial navigation unit?
- A.
Time.
- B.
Distance.
- C.
Drift angle.
- D.
True airspeed.
Correct Answer
D. True airspeed. -
- 40.
40. (604) What mode does the embedded global positioning and inertial navigation unit (EGI) automatically enter following power-up?
- A.
Self test.
- B.
Navigation.
- C.
Allignment.
- D.
Initialization.
Correct Answer
D. Initialization. -
- 41.
41. (604) If the gyro compass alignment of the inertial navigation unit (INU) portion of the embedded global positioning and inertial navigation unit (EGI) is interrupted due to aircraft motion, then the alignment will
- A.
Automatically restart.
- B.
Stop and await a manual restart.
- C.
Be prolonged by no more than period of suspension.
- D.
Be prolonged by no more than period of suspension plus 20 seconds.
Correct Answer
D. Be prolonged by no more than period of suspension plus 20 seconds. -
- 42.
42. (604) What is the circle error of probability for the inertial navigation unit (INU) after a successful stored heading alignment?
- A.
Better than 1.0 nautical miles/hour.
- B.
Better than 1.5 nautical miles/hour.
- C.
Better than 2.0 nautical miles/hour.
- D.
Better than 2.5 nautical miles/hour.
Correct Answer
A. Better than 1.0 nautical miles/hour. -
- 43.
43. (604) When does the embedded global positioning and inertial navigation unit (EGI) provide a pure inertial navigation solution?
- A.
At all times.
- B.
Only when manually selected.
- C.
Automatically upon failure of INS/GPS solution.
- D.
Automatically upon failure of GPS-only solution.
Correct Answer
A. At all times. -
- 44.
44. (604) Which navigation solution provides the best estimate of position, velocity, and time?
- A.
Pure inertial.
- B.
Precise positioning service.
- C.
Global positioning system (GPS) only.
- D.
Blended inertial navigation system (INS)/GPS.
Correct Answer
D. Blended inertial navigation system (INS)/GPS. -
- 45.
45. (605) In the global positioning system, almanac data is transmitted to each satellite to update the navigation data message once every
- A.
6 hours.
- B.
12 hours.
- C.
24 hours.
- D.
48 hours.
Correct Answer
C. 24 hours. -
- 46.
46. (605) How many radio frequency signals are transmitted from each global positioning system satellite?
- A.
None.
- B.
One.
- C.
Two.
- D.
Three.
Correct Answer
C. Two. -
- 47.
47. (605) The global positioning system navigation set calculates speed by
- A.
Dividing the time by the range.
- B.
Adding the distance to four satellites.
- C.
Decoding the radio frequency signal transmitted.
- D.
Measuring the rate of change of the radio frequency signal.
Correct Answer
D. Measuring the rate of change of the radio frequency signal. -
- 48.
48. (605) If your global positioning system has a merit figure of 5, what is the total expected position error (EPE)?
- A.
EPE < 25 meters.
- B.
101 ≤ EPE < 200 meters.
- C.
201 ≤ EPE < 500 meters.
- D.
EPE > 5000 meters.
Correct Answer
B. 101 ≤ EPE < 200 meters. -
- 49.
49. (606) The navigational system of the global positioning system has a time accuracy of how many nanoseconds?
- A.
50.
- B.
100.
- C.
150.
- D.
200.
Correct Answer
B. 100. -
- 50.
50. (606) Which global positioning system unit in the ARN-151 produces the intermediate frequency signal?
- A.
Antenna.
- B.
Receiver.
- C.
Indicator control.
- D.
Antenna controller.
Correct Answer
D. Antenna controller. -
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Mar 21, 2022Quiz Edited by
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