What is the purpose of the NDB during navigation

Provides aircraft with station bearings

Why is the BFO switched to ON

To listen to the identification of NON/A1A modulated NDBs

What factors affect the performance of NDB/ADF systems

Static interference, twilight effect & mountain effect

What is the cause of quadrantal error

Disturbances by a/c fuselage(metallic & magnetic surfaces)

Which effect may be observed during twilight

Fluctuations of the ADF-RMI needle

under which circumstances is the coastal effect at its maximum

NDB station inland and crossing coast at acute angle

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NDB

11 termsStudBud Administration178 plays

Radio Nav #3

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Questions 11

Answers

1
The a/c flies a MH of 340°. The ADF reads a relative bearing of 045°. Which is the actual QDM
295°
115°
025°
205°
2
The radiation pattern of a NDB antenna is
a cardioid pattern rotating at 30Hz
an omnidirectional pattern
a cardioid pattern
an unidirectional pattern
3
Which of the following disturbances is most likely to have the greatest impact on ADF bearings
Coastal Effect
Snow
Thunderstorms
Quadrantal error
4
What is the purpose of the NDB during navigation
Provides station with aircraft ranges
Provides aircraft with station bearings
Provides aircraft with station ranges
Provides station with aircraft bearings
5
Why is the BFO switched to ON
To allow for direction finding with NON/A1A modulated NDBs
To listen to the identification of NON/A1A modulated NDBs
To allow for direction finding with NON/A2A modulated NDBs
To listen to the identification of NON/A2A modulated NDBs
6
What factors affect the performance of NDB/ADF systems
Mountain effect, altitude effect & shoreline effect
Lane slip, mountain effect & shoreline effect
Static interference, twilight effect & mountain effect
Twilight effect, mountain effect & altitude effect
7
What is the cause of quadrantal error
Interference between sky waves & ground waves
Disturbances by a/c fuselage(metallic & magnetic surfaces)
Misalignment of the directional antenna system
Disturbances by the electrical wiring of the a/c (induction)
8
what is the standard range for a terminal NDB or Locator Beacon
50-150nm
10-25km
10-25nm
50-150km
9
Which effect may be observed during twilight
Frozen RMI-ADF needle
Frozen compass card
Fluctuations of the compass card
Fluctuations of the ADF-RMI needle
10
under which circumstances is the coastal effect at its maximum
NDB station close to the coast & crosses coast perpendicular
NDB inland and crosses coastline perpendicular
NDB station close to the coast and crosses at acute angle
NDB station inland and crossing coast at acute angle
11
Given: RB =325°, CHdg = 240°, DEV = 2°E, Var a/c = 20°E, Var NDB = 18°E calculate the QUJ
227°
007°
207°
187°

NDB Flashcards | StudBud

NDB

11 termsStudBud Administration178 plays

Radio Nav #3

Flashcards11 cardsFPractice quizPHost liveL

Questions 11

Answers

1
The a/c flies a MH of 340°. The ADF reads a relative bearing of 045°. Which is the actual QDM
295°
115°
025°
205°
2
The radiation pattern of a NDB antenna is
a cardioid pattern rotating at 30Hz
an omnidirectional pattern
a cardioid pattern
an unidirectional pattern
3
Which of the following disturbances is most likely to have the greatest impact on ADF bearings
Coastal Effect
Snow
Thunderstorms
Quadrantal error
4
What is the purpose of the NDB during navigation
Provides station with aircraft ranges
Provides aircraft with station bearings
Provides aircraft with station ranges
Provides station with aircraft bearings
5
Why is the BFO switched to ON
To allow for direction finding with NON/A1A modulated NDBs
To listen to the identification of NON/A1A modulated NDBs
To allow for direction finding with NON/A2A modulated NDBs
To listen to the identification of NON/A2A modulated NDBs
6
What factors affect the performance of NDB/ADF systems
Mountain effect, altitude effect & shoreline effect
Lane slip, mountain effect & shoreline effect
Static interference, twilight effect & mountain effect
Twilight effect, mountain effect & altitude effect
7
What is the cause of quadrantal error
Interference between sky waves & ground waves
Disturbances by a/c fuselage(metallic & magnetic surfaces)
Misalignment of the directional antenna system
Disturbances by the electrical wiring of the a/c (induction)
8
what is the standard range for a terminal NDB or Locator Beacon
50-150nm
10-25km
10-25nm
50-150km
9
Which effect may be observed during twilight
Frozen RMI-ADF needle
Frozen compass card
Fluctuations of the compass card
Fluctuations of the ADF-RMI needle
10
under which circumstances is the coastal effect at its maximum
NDB station close to the coast & crosses coast perpendicular
NDB inland and crosses coastline perpendicular
NDB station close to the coast and crosses at acute angle
NDB station inland and crossing coast at acute angle
11
Given: RB =325°, CHdg = 240°, DEV = 2°E, Var a/c = 20°E, Var NDB = 18°E calculate the QUJ
227°
007°
207°
187°