Communications and Light Gun Signals 4
Appropriate use of transponders (PA.III.A.K4)
1 / 13
1. The transponder should be cycled to 7700 in the event of
Answer (B) is correct. (AIM Para 4-1-20) The nondiscrete transponder code 7700 is used in the event of an emergency to “squawk MAYDAY.” Although a special indicator will alarm all control positions, pilots should understand that they may not be within a radar coverage area and should therefore continue to squawk and establish radio contact as soon as possible.
2 / 13
2. Your transponder is inoperative. In order to enter Class B airspace, you must submit a request for a deviation from the
Answer (C) is correct. (14 CFR 91.215) ATC may authorize deviations on a continuing basis, or for individual flights, for operations of aircraft without an operative transponder. The request for a deviation must be submitted to the ATC facility having jurisdiction over the airspace concerned at least 1 hr. before the proposed operation.
3 / 13
3. An operable 4096-code transponder and Mode C encoding altimeter are required in
Answer (A) is correct. (14 CFR 91.215) An operable 4096-code transponder and Mode C encoding altimeter are required in Class B airspace and within 30 nautical miles of the Class B primary airport.
4 / 13
4. An operable 4096-code transponder with an encoding altimeter is required in which airspace?
Answer (A) is correct. (14 CFR 91.215) An operable transponder with an encoding altimeter (Mode C) is required in Class A, Class B (and within 30 nautical miles of the Class B primary airport), and Class C airspace, and at or above 10,000 feet MSL excluding that airspace below 2,500 feet AGL.
5 / 13
5. In the event of unlawful interference or hijacking, which transponder code should you input immediately?
Answer (C) is correct. (AIM Para 4-1-20) The nondiscrete transponder code 7500 is used in the event of unlawful interference or hijacking. Once input, this code triggers a special emergency indicator in all radar ATC facilities.
6 / 13
6. What is the appropriate transponder code in response to lost communications?
Answer (C) is correct. (AIM Para 4-1-20) Code 7600 is used in the event of a radio failure or lost communications. Other emergency codes are 7500 for hijacking and 7700 for a general emergency. Additionally, code 7777 is reserved for military interceptors.
7 / 13
7. What is the hijack code?
Answer (C) is correct. (AIM Para 4-1-20) Transponder code 7500 means: “I am being hijacked/forced to a new destination.” Code 7500 will never be assigned by ATC without prior notification from the pilot that his or her airplane is being subjected to unlawful interference. Code 7500 will trigger special emergency indicators in all radar ATC facilities.
8 / 13
8. Unless otherwise authorized, if flying a transponder equipped aircraft, a pilot should squawk which VFR code?
Answer (B) is correct. (AIM Para 4-1-20) A pilot flying a transponder-equipped aircraft should set that transponder on code (squawk) 1200, which is the VFR code.
9 / 13
9. Which of the following codes should be set for VFR flight in Class E airspace?
Answer (A) is correct. (AIM Para 4-1-20) The standard VFR transponder code is 1200. Since all flight operations above 18,000 ft. MSL are to be IFR, code 1200 is not used above that height.
10 / 13
10. At an altitude below 18,000 feet MSL, which transponder code should be selected?
Answer (C) is correct. (AIM Para 4-1-20) The standard VFR transponder code is 1200. Because all flight operations above 18,000 feet MSL are to be IFR, code 1200 is not used above that height.
11 / 13
11. When operating under VFR below 18,000 feet MSL, unless otherwise authorized, what transponder code should be selected?
Answer (B) is correct. (AIM Para 4-1-20) The standard VFR transponder code is 1200. Since all flight operations above 18,000 feet MSL are to be IFR, code 1200 is not used above that height.
12 / 13
12. When making routine transponder code changes, pilots should avoid inadvertent selection of which code?
Answer (A) is correct. (AIM Para 4-1-20) Some special codes set aside for emergencies should be avoided during routine VFR flights. They are 7500 for hijacking, 7600 for lost radio communications, and 7700 for a general emergency. Additionally, you should know that code 7777 is reserved for military interceptors.
13 / 13
13. If Air Traffic Control advises that radar service is terminated when the pilot is departing Class C airspace, the transponder should be set to code
Answer (B) is correct. (AIM Para 4-1-20) The code 1200 designates VFR operations when another number is not assigned by ATC.
Your score is
Restart quiz
Session expired
Please log in again. The login page will open in a new tab. After logging in you can close it and return to this page.
