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Questions for KW INSTRUMENTS INS/IRS/FMS

Answer the following questions

1. In an IRS system?
2. A rate Integrating gyro is used in ?
3. The product of the first integration of the E/W acceleration sensed by an INS system is?
4. An FMS database is valid for?
5. The Schuler period is?
6. The selection on an IRS mode panel are used in the following order?
7. Setting zero cost index on an FMS gives?
8. The vertical reference unit of a three axis data generator is equipped with a gyro with?
9. While inertial platform system is operating on board an aircraft , it is necessary to use a device with the following characteristics, in order to keep the vertical line with the pendulous system?
10. The JAR 25 standard colour for an FMS active planned route is?
11. What is the first page on an FMS CDU?
12. The triangular cavity in a RLG is filled with which combination of gasses?
13. The correct latitude must be put into INS?
14. The sequences for switching on INS is?
15. With reference to an FMS, what does the term managed guidance mean?
16. with reference to Inertial Navigation Systems, the functions of the integrator are? 1. At the second stage integration to suppress unbounded errors (when in nav mode). 2. At the first stage of integration to convert accelerations with respect to time, into speed, (when in nav mode.) 3. At the second stage of integration to convert speed with respect to time, into distance gone, (when in nav mode). 4. To align the platform (when in level and align modes)
17. A longitude error in an INS will cause
18. Laser gyros are used in an IRS. Why must accurate latitude and longitude be inserted?
19. What happens If an FMC operating in VNAV and LNAV modes reaches a waypoint beyond which no route has been input?
20. IRS is different from INS in that it?
21. The fundamental difference between INS and IRS is that?
22. In order to align a strap-down inertial unit, it is required to insert the local geographical coordinates. This is necessary to?
23. A cost index is?
24. The amber ALERT light on an INS control and display unit?
25. What is the Schuler period?
26. Modern systems employ ring laser gyros because they offer?
27. Integration of a yaw rate signal?
28. An IRS with laser gyros should (i) ....... be Schuler tuned , and (ii) ...... be strapped down?
29. When using an INS platform Coriolis affects?
30. The errors of an INS fall into three categories?
31.
The diagram below shows a gyro-stabilised platform . 1 is a........ gyro gimbal and 2 is a ...... gimbal?
32. Where would a rate integrating gyro be used? 1. Turn and slip indicators. 2.Servo stabiliser mechanisms. 3. Autopilots. 4. Inertial attitude units 5. Inertial navigation units.
33. Why is the Inertial strapdown unit in an IRS programmed with coordinates during alignment?
34. Heading information given by a gyro platform is given by a gyro with?
35. In an INS a TAS input is ?
36. An INS with the accelerometers aligned N/S and E/W is limited to use at latitudes below about 82°. This is because?
37. The inputs to the FMS include? 1. Air data computer information 2. Route data. 3.Radio aids information. 4.Power pland data. 5.Operating data
38. During initial alignment the IRS must be given coordinates to?
39. To obtain heading information from a gyro-stabilised platform, the gyros should be?
40. At the second state of integration E/W speed is converted into E/W distance gone. To convert this departure into change of longitude it has to?
41. Alignment of a RLG INS takes?
42. In an INS which is Schuler tuned , the largest unbounded errors are?
43. The control and display unit of an inertial navigation system indicates a position of 4810.9° N 00012.2° W on a ramp position 4807.5°N 00005.1°E. What is the radial error rate of the system if it has been in NAV mode for 8 hours 20 minutes?
44. In an INS the gyros should ..... be strap down. In an IRS the gyros should ..... be strapped down?
45. The flight control unit in an FMS?
46. Ring laser gyros use dither motors to?
47. The position accuracy of an RLG INS is ?
48. Valid FMS CDU waypoint entries include? 1. Runway number 2. Navaid limitations. 3. Airport ICAO identifier. 4.Navaid identifier 5. Waypoint name 6. Country code
49. Why is an INS platform virtually unusable at very high latitudes?
50. The Inputs to an FMS Include? 1. Operating data. 2. Terminal data. 3. Air data 4. Route data 5.Engine data 6. Radio aids data.