AET Communication Systems 3

Question 1

What is the primary function of an audio control panel (ACP) in an aircraft?

Accepted Answer

Select and route audio between radios, navigation receivers, and crew headsets

Answer

Generate audio tones

Answer

Amplify RF signals

Answer

Control autopilot audio alerts

Question 2

What does ACARS stand for?

Accepted Answer

Aircraft Communication Addressing and Reporting System

Answer

Automatic Circuit Alert and Response System

Answer

Airborne Communication and Radar System

Answer

Aviation Communication Archive and Relay Service

Question 3

What frequency does the emergency guard channel operate on in aviation?

Accepted Answer

121.5 MHz

Answer

108.0 MHz

Answer

131.8 MHz

Answer

156.8 MHz

Question 4

What is the impedance of a standard aviation VHF antenna system?

Accepted Answer

50Ω

Answer

75Ω

Answer

300Ω

Answer

600Ω

Question 5

In aircraft interphone systems, what is the purpose of a hot microphone (hot mic) mode?

Accepted Answer

Allow continuous open-mic communication without PTT

Answer

Record all crew conversations to CVR

Answer

Boost microphone gain for weak signals

Answer

Enable passenger PA announcements

Question 6

Which regulation governs avionics communication equipment approval in the US?

Accepted Answer

TSO (Technical Standard Order) standards

Answer

FAR Part 23 only

Answer

FCC Part 97

Answer

RTCA DO-178 exclusively