Transponder (Secondary Surveillance Radar)

Question 1

When operating in the Brussels FIR under the transition altitude (TA), unless otherwise authorized, what transponder code should be selected?

Answer 1

7000, mode A and C

Question 2

Which transponder code you will select when leaving the Oostende TMA at 2000 ft?

Answer 2

7000, because you are entering uncontrolled airspace

Question 3

When the air traffic controller ask a pilot to activate the transponder, which will help him to identify your aircraft on his radar screen, he will express this request as:

Answer 3

Squawk IDENT

Question 4

What is the transponder code for a radio receiver failure on a flight in controlled airspace?

Answer 4

7600, mode A & C

Question 5

An aircraft is squawking 7600. This indicates:

Answer 5

It is unable to establish communication due to radio equipment failure

Question 6

Main swack code

Answer 6

7000 Uncontrolled VFR
7500 Hijacking
7600 Radio failure
7700 Distress call (freq 121.5)

Question 7

Encountering a state of emergency, being directed by ATC to operate the transponder on a specific code,

Answer 7

this code setting shall be maintained, until otherwise advised