Custom IREX Exam

Question 1 of 30

1. Question

1 point(s)

When radio waves are transmitted from an antenna, what direction do the waves travel in?

North

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Where the aircrafts nose is pointing

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All directions

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In parallel with the antenna

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Question 2 of 30

2. Question

1 point(s)

At what speed do radio waves travel at when transmitted from an antenna?

Speed of light

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Speed of sound

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Mach 1

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2000kts/h

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Question 3 of 30

3. Question

1 point(s)

Wavelengths are related to?

Radios

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Frequency

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Crests

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Hertz

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Question 4 of 30

4. Question

1 point(s)

“ADF” Stands for?

Automatic Direction Finding

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Airforce Defence Fighter

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Automatic Directional Finder

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Aircraft Deflection Field

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Question 5 of 30

5. Question

1 point(s)

“NDB” Stands for?

Non Directional Beacon

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Non Direct Beacon

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Non Deflecting Beacon

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Non Directional Battery

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Question 6 of 30

6. Question

1 point(s)

Which of the following transmit its signals in the low to medium frequency bands?

NDB

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ADF

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VHF

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VOR

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Question 7 of 30

7. Question

1 point(s)

Night Effect, Thunderstorm Effect, Mountain Effect and Coastal Refraction are all errors relating to which device?

ADF

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VOR

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DME

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ILS

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Question 8 of 30

8. Question

1 point(s)

“VOR” stands for?

VHF Omni Range

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VHF Omni Radio

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VHF Orbital Radio

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VHF Orbital Range

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Question 9 of 30

9. Question

1 point(s)

“OBS” stands for?

Omni Bearing Selector

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Orbital Bearing Selector

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Omni Beacon Satellite

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Omni Beacon Search

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Question 10 of 30

10. Question

1 point(s)

Ground station error, Site effect error, terrain effect, vertical polarisation effect and scalloping are all errors of which device?

VOR

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OBS

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NDB

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ADF

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Question 11 of 30

11. Question

1 point(s)

IFR flight rules are designed to make sure?

The aircraft is properly equipped

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The pilot is properly qualified

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The flight procedure being conducted is safe and compliant

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All of the above

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Question 12 of 30

12. Question

1 point(s)

Which of the following instruments are considered important to IFR flying?

AH + ASI

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ALT + VSI

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Tachometer + Engine Parameter Gauges

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All of the above

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Question 13 of 30

13. Question

1 point(s)

Altimeter serviceability tolerances can be found in the?

AIP

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ERSA

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Aircraft POH

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Aircraft Checklist

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Question 14 of 30

14. Question

1 point(s)

With an accurate QNH set for an IFR flight, the altimeter should read the nominated elevation to within 60ft, the altimeter is considered to be unserviceable if the reading is in excess of?

75ft

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60ft

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100ft

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80ft

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Question 15 of 30

15. Question

1 point(s)

Aircraft radar equipment must not be used when?

Refuelling

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Whilst flying over populated areas

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During thunderstorms

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The antenna is rotating

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Question 16 of 30

16. Question

1 point(s)

When the aircraft radio equipment antenna is rotating in normal mode, what is the minimum distance it must be from persons, cargo, hangars and other aircraft?

30 meters

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60 meters

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25 meters

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50 meters

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Question 17 of 30

17. Question

1 point(s)

The GNSS system consists of which parts?

User segment

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Space segment

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Control segment

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All of the above

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Question 18 of 30

18. Question

1 point(s)

“GDOP” stands for?

Geometric Dilution of Precision

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Geometric Disguise of Precision

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Geometric Distillation of Precision

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Geometric Distance of Precision

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Question 19 of 30

19. Question

1 point(s)

GDOP consists of which components?

PDOP

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TDOP

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HDOP + VDOP

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All of the above

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Question 20 of 30

20. Question

1 point(s)

Augmentation systems relating to GNSS can be?

Aircraft Based (ABAS)

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Satellite Based (SBAS)

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Ground Based (GBAS)

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All of the above

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Question 21 of 30

21. Question

1 point(s)

The limits used when issuing a RAIM warning consist of?

2.0nm for en-route operations

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1.0nm for terminal operations

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0.3nm for 2D approaches

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All of the above

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Question 22 of 30

22. Question

1 point(s)

If a GNSS unit uses widely spaced out satellites, the position being reported is likely to have?

High accuracy + low GDOP

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High accuracy + high GDOP

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Low accuracy + low GDOP

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Low accuracy + high GDOP

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Question 23 of 30

23. Question

1 point(s)

RAIM allows for fault detection (FD) in a GNSS system, what statement is correct?

FD requires 4 satellites, 3 if barometric aiding is available

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FD requires 5 satellites

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FD requires 5 satellites, 4 if barometric aiding is available

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RAIM is only applicable to TSO 145 units

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Question 24 of 30

24. Question

1 point(s)

What CASR part number can you find information on IFR licencing?

Part 61

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Part 91

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Part 141

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Part 135

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Question 25 of 30

25. Question

1 point(s)

It is recommended that a flight notification is submitted at what time interval prior to the estimated departure time?

15 minutes

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30 minutes

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45 minutes

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1 hour

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Question 26 of 30

26. Question

1 point(s)

What is the time limit between positive fixes on an IFR flight?

None

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30 minutes

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1 hour

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2 hours

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Question 27 of 30

27. Question

1 point(s)

Which of the following are considered 2D approaches?

RNAV

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NDB

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VOR

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All of the above

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Question 28 of 30

28. Question

1 point(s)

The decision whether to continue visually on a 3D approach is based on?

Visibility down the runway

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Obstacle clearance

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Visibility

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Weather

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Question 29 of 30

29. Question

1 point(s)

MDA allows for the required clearance above any obstacle within?

The circling area

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5nm

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3nm

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Aerodrome vicinity

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Question 30 of 30

30. Question

1 point(s)

The height at which the decision to continue the approach is called?

Committal Height

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MDA

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DA

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HI

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