B737 System Validation Question Bank - Navigation R1

Front 1

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Back 1

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Front 2

1. How much time is required for initial IRS alignment?
a. Approximately 10 minutes at mid-latitudes
b. At least 15 minutes
c. At least 30 seconds

Back 2

a. Approximately 10 minutes at mid-latitudes

Front 3

2. When the IRS Mode Selector is placed from OFF to the NAV position, what does the momentary illumination of the ON DC light indicate?
a. A system self-test has failed
b. The IRS’s are operating on self-contained nicad batteries
c. The IRS alternate power source is available from the switched hot battery bus

Back 3

c. The IRS alternate power source is available from the switched hot battery bus

Front 4

3. To what extent are the magnetic variation limits stored in each IRS memory?
a. 60 degrees north, 73 degrees south
b. 73 degrees north, 60 degrees south
c. 60 degrees north, 60 degrees south

Back 4

b. 73 degrees north, 60 degrees south

Front 5

4. What is the origin of the present position latitude and longitude used in IRS alignment?
a. Latitude and longitude are selected from the database and entered by the crew
b. Longitude is entered by the crew, latitude entry is automatic by the IRS
c. Latitude and longitude are entered automatically by the IRS

Back 5

a. Latitude and longitude are selected from the database and entered by the crew

Front 6

5. What is required for an IRS to automatically enter the NAV mode?
a. A present position entry
b. A successful performance test
c. A successful reasonableness test
d. All are required

Back 6

d. All are required

Front 7

6. What information is provided by the IRS in addition to present position, heading and attitude signals?
a. True airspeed, route offset & wind data
b. Ground speed, great circle navigation & wind data
c. Ground speed, ground track & wind data

Back 7

c. Ground speed, ground track & wind data

Front 8

7. Which IRS entries are subjected to the reasonableness test?
a. Only latitude
b. Only longitude
c. Latitude & longitude

Back 8

c. Latitude & longitude

Front 9

8. If, at the beginning of IRS alignment, the present position entry in the IRS fails the reasonableness test and the same position is re-entered, what indication does the crew see?
a. The ALIGN light continues to flash
c. The ALIGN light extinguishes

Back 9

b. The ALIGN light returns to steady ON

Front 10

9. What condition may cause a reasonableness test failure when proper entry of present position has been accomplished?
a. Aircraft has been moved to a different location with the IRS OFF
b. Aircraft moved during IRS alignment
c. Aircraft IRS shutdown before alignment completed

Back 10

a. Aircraft has been moved to a different location with the IRS OFF

Front 11

10. Which IRS entry or entries are cross-checked by the system performance test?
a. Latitude only
b. Longitude only
c. Latitude & longitude

Back 11

a. Latitude only

Front 12

11. What causes IRS alignment to be lost inflight?
a. Loss of AC or DC power
b. Moving the selector switch to ALIGN
c. Illumination of the DC FAIL light

Back 12

b. Moving the selector switch to ALIGN

Front 13

12. After entering the present position during IRS alignment, what would indicate a reasonableness test failure?
a. The ALIGN light flashes
b. The ALIGN light comes on steady
c. The FAULT light comes to steady

Back 13

a. The ALIGN light flashes

Front 14

13. What information is lost and cannot be restored when inflight alignment of an IRS is lost?
a. Present position
b. Heading
c. Attitude

Back 14

a. Present position

Front 15

14. What are the normal electrical power sources for the IRS?
a. The No. 1 Transfer bus for the left IRS & the No. 2 Transfer bus for the right IRS
b. The Standby DC bus for the left IRS & the No. 2 Transfer bus for the right IRS
c. The Standby AC bus for the left IRS & the No. 2 Transfer bus for the right IRS

Back 15

c. The Standby AC bus for the left IRS & the No. 2 Transfer bus for the right IRS

Front 16

15. Which correct for IRS backup source of electrical power?
a. Left & right IRSs by their respective nicad battery packs for 30 minutes
b. Left & right IRSs by the aircraft battery for up to 30 minutes
c. Left IRS by the switched hot battery bus & right IRS by the switched hot battery bus for 5 minutes

Back 16

c. Left IRS by the switched hot battery bus & right IRS by the switched hot battery bus for 5 minutes

Front 17

16. What is indicated when two consecutive identical latitudes are entered into the IRS and they both fail in system performance test?
a. Steady ALIGN light extinguishes & FAULT light comes on
b. All lights on the IRS display extinguish
c. Both ALIGN and FAULT lights turn red

Back 17

a. Steady ALIGN light extinguishes & FAULT light comes on

Front 18

17. Which statement is correct concerning right IRS operation while operating on aircraft batter power only?
a. The right IRS cannot operate on the aircraft battery
b. The right IRS will operate for 5 minutes on the aircraft battery
c. The right IRS will operate for 30 minutes on the aircraft battery

Back 18

b. The right IRS will operate for 5 minutes on the aircraft battery

Front 19

18. Which statement is correct concerning IRS inflight present position?
a. The IRS may be updated by the flight management computer via the control display unit
b. The IRS may be updated inflight by position entries via the IRS DISPLAY unit on the overhead panel
c. The crew can never update the IRS position inflight

Back 19

c. The crew can never update the IRS position inflight

Front 20

19. What does an illuminated IRS DC FAIL light indicate?
a. The IRS backup power source is not available
b. The IRS normal power source is not available
c. The IRS is operating on its normal power source

Back 20

a. The IRS backup power source is not available

Front 21

20. During the IRS initialization, if the reasonableness Test fails, the ALIGN annunciator flashes. If the same wrong data is reentered a second time the ALIGN annunciator will continue to flash.
a. True
b. False

Back 21

b. False

Front 22

21. The pilot can update the current IRS latitude and longitude any number of times without delaying alignment as long as the IRS has not entered the NAV mode.
a. True
b. False

Back 22

b. False

Front 23

22. What is true regarding the IRS (Inertial Reference System)?
a. Both IRS’s will quit after 5 minutes of Standby power operation
b. Both IRS’s will continue to run in Standby power until the batter is dead
c. Only the Captain’s (#1) may be fully aligned in-flight
d. The IRS are the sole source of Attitude and Heading except for the Standby Compass and Standby Attitude Indicator

Back 23

d. The IRS are the sole source of Attitude and Heading except for the Standby Compass and Standby Attitude Indicator

Front 24

23. What does the IRS performance test check?
a. The latitude entered by the pilot
b. The longitude entered by the pilot
c. The latitude and longitude entered by the pilot

Back 24

a. The latitude entered by the pilot

Front 25

24. Which statement(s) describe the IRS (Inertial Reference System)?
a. If the IRS Alignment is lost in-flight, only Attitude and Manually entered Heading information is available
b. Only the Captain’s (left) IRS will operate from the battery for more than 5 minues
c. The present position entered during preflight must pass both a Reasonableness and System Performance Test prior to the IRS entering the NAV mode
d. All the answers are correct

Back 25

d. All the answers are correct

Front 26

25. During normal IRS Alignment, the momentary illumination of the “ON DC” annunciator indicates ______.
a. The “ON DC” annunciator illuminates to indicate that the light bulb in the annunciator is working
b. The “ON DC” annunciator illuminates to show that the IRS is communicating with the FMC
c. The “ON DC” annunciator illuminated to indicate that the IRS is capable of operating from is backup DC power source.
d. None of the answers are correct

Back 26

c. The “ON DC” annunciator illuminated to indicate that the IRS is capable of operating from is backup DC power source.

Front 27

26. What is the power source for the Right IRS when AC Transfer Bus #2 is lost?
a. Switched Hot Battery Bus for a maximum of 5 minutes
b. Aircraft Battery for up to 30 minutes
c. A #2 IRS dedicated nicad batter for 5 minutes

Back 27

a. Switched Hot Battery Bus for a maximum of 5 minutes

Front 28

27. Which of the following will cause a flashing ALIGN light on the IRS Mode Panel during alignment?
a. No present position entry
b. Failure of the Reasonableness or System Performance Test
c. Aircraft movement during alignment
d. All answers are correct

Back 28

d. All answers are correct

Front 29

28. During IRS alignment, all of the following will cause a flashing ALIGN light except:
a. NAV Database out of Date
b. The system performance test failed.
c. No present position entry
d. Wrong Latitude/Longitude entries, which causes a failure of the Reasonableness Test

Back 29

a. NAV Database out of Date

Front 30

29. During normal IRS Alignment, the momentary illumination of the “ON DC” annunciator indicates ________.
a. The “ON DC” annunciator illuminates to indicate that the light bulb in the annunciator is working
b. A successful self test to indicate that the IRS backup DC power source is available
c. The “ON DC” annunciator illuminates to indicate that external power is applied to the aircraft.
d. None of the answers are correct

Back 30

b. A successful self test to indicate that the IRS backup DC power source is available

Front 31

30. Which bus normally powers the left IRS?
a. Ground Service Bus
b. DC Standby bus
c. #2 AC Transfer Bus
d. AC Standby Bus

Back 31

d. AC Standby Bus

Front 32

31. When IRS alignment is lost inflight, all _______ features are lost for the remainder of the flight.
a. Flight Control
b. Altitude
c. Track and groundspeed
d. Alarm

Back 32

c. Track and groundspeed

Front 33

32. During takeoff with flight director in the TOGA mode below 400 ft., roll commands are for:
a. Maintaining aircraft wings level
b. Maintaining aircraft track
c. Maintaining aircraft heading

Back 33

a. Maintaining aircraft wings level

Front 34

33. What does an illuminated F/D master light indicate?
a. Indicates which pilot is flying
b. Indicates which Autothrottle computer is the master
c. Indicates which FCC provides logic to F/D & A/P modes

Back 34

c. Indicates which FCC provides logic to F/D & A/P modes

Front 35

34. What ensures that both the CAPT and F/O will have the same F/D VOR/LOC command guidance when the CAPT master F/D light is on?
a. The F/O course automatically slews to the CAPT course & VHF frequency selection
b. The same VHF frequency & course selection must be set on CAPT and F/O radios
c. The F10 course automatically slews to the CAPT course, the VHF frequency must be tuned manually

Back 35

b. The same VHF frequency & course selection must be set on CAPT and F/O radios

Front 36

35. How is the master F/D determined with no A/P engaged?
a. The first F/D turned on
b. The first TOGA switch pushed
c. The first A/T switch pushed

Back 36

a. The first F/D turned on

Front 37

36. Both master lights on the Mode Control Panel are illuminated at the same time when:
a. When both nav radios are tuned to the same frequency
b. When only one autopilot is engaged
c. When the MCP selected altitude is captured
d. The GA mode is engaged below 400 feet

Back 37

d. The GA mode is engaged below 400 feet

Front 38

37. How is the F/D TO mode engaged?
a. Select the takeoff page on the FMC & place both F/D switches to ON
b. Place both F/D switches to ON & press either TO/GA switch
c. Place both F/D switches to ON & press MCP N1 mode selector

Back 38

b. Place both F/D switches to ON & press either TO/GA switch

Front 39

38. What are the F/D pitch commands during the takeoff roll?
a. 10 degrees nose down until 60 knots, then 15 degrees nose up
b. 10 degrees nose up until 70 knots, then 20 degrees nose up
c. 12 degrees nose down until 80 knots, then 10 degrees nose up

Back 39

a. 10 degrees nose down until 60 knots, then 15 degrees nose up

Front 40

39. When the First Officer is flying an ILS approach using the “A” autopilot, the APP mode will follow signals from the #2 NAV radio.
a. True
b. False

Back 40

b. False

Front 41

40. When is the Flight Director Go-Around Mode armed?
a. Any time one Flight Director is OFF
b. Go-Around is an Autopilot mode only
c. Below 2000 feet AGL
d. When the air/ground sensor goes into the ground mode

Back 41

c. Below 2000 feet AGL

Front 42

41. During a dual autopilot approach (A/P GA mode) which are the FMA and MCP indications when the GA mode is engaged?
a. FLAPS is annunciated, IAS/MACH display slews to 1.3 Vs
b. RETARD is annunciated, IAS/MACH display slews to indicate max flaps down maneuvering speed
c. TO/GA is annunciated, IAS/MACH display blanks

Back 42

c. TO/GA is annunciated, IAS/MACH display blanks

Front 43

42. What is the initial F/D GA pitch command during a 2 engine missed approach?
a. 10 degrees nose up or Pitch for MCP selected target speed
b. 15 degrees nose up
c. 25 degrees nose up or Pitch for speed at GA engagement whichever is higher

Back 43

b. 15 degrees nose up

Front 44

43. What A/T thrust is generated during a F/D GA when the TOGA button is depressed once?
a. Thrust increases to the full GA limit N1
b. Thrust increases to the climb one limit N1
c. A/T engages in GA and advances thrust toward the reduced go-around N1 to produce a 1000-2000 fpm rate of climb

Back 44

c. A/T engages in GA and advances thrust toward the reduced go-around N1 to produce a 1000-2000 fpm rate of climb

Front 45

44. How can the F/D APP mode be disengaged after the localizer and glideslope have been captured?
a. Press the TOGA switch
b. Retune the VHF Nav sets
c. Disengaged the autopilot(s) and place both F/D switches to OFF
d. All the answers are correct

Back 45

d. All the answers are correct

Front 46

45. What causes the F/D command bars to bias out of view?
a. Automatically at 50 feet RA on an ILS approach
b. Pressing either TOGA switch
c. Pressing either Autothrottle disconnect switch

Back 46

a. Automatically at 50 feet RA on an ILS approach

Front 47

46. Which of the following correctly describes the inertial reference system (IRS)?
a. The IRS provides attitude, heading, position, and track information
b. The IRS provides attitude, heading, groundspeed, wind, position, and track information
c. The IRS provides attitude, heading, groundspeed, wind, position, DirecTV, and track information

Back 47

b. The IRS provides attitude, heading, groundspeed, wind, position, and track information