
NDB ADF 6
Quiz
•
Professional Development
•
1st Grade
•
Practice Problem
•
Medium

Eli Shingleton
Used 38+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If night effect becomes apparent you may improve the accuracy by:
Decreasing alttude
Tuning to a station closer to the coast
Tuning to a closer station
Using the aural null method of obtaining a bearing
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When the induced signals from the loop and sense antenna are combined in an ADF receiver, the resultant polar diagram is called
A Limacon
A Cardioid
A figure of eight
Circular
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Coastal refraction on an ADF bearing will be increased if the:
Beacon is further inland
Beacon is nearer the coast
Aircraft is further away from the coast
Aircraft is nearer the coast
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following factors could cause an error to an ADF bearing?
Reverse sensing
Tropospheric scatter
Scalloping
Night effect
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An NDB radio wave is moving from land to sea. On crossing the coast the wave will bend ____ the normal and ____ the coast.
Away from Away from
Towards Towards
Towards Away from
Away from Towards
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When using NDB's, night effect is most likely to be greatest at:
Dawn
Dusk
Dawn or Dusk
Night
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An NDB transmits a signal pattern which is:
a 30hz poar diagram
Omni-directional
A bi-lobal pattern
A beam rotating at 30hz
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