AET Technical Knowledge and Skills 5

Question 1

An Air Data Computer (ADC) develops aircraft airspeed by processing data from which sensor inputs?

Accepted Answer

Pitot (total) pressure and static pressure

Answer

GPS velocity and magnetic heading

Answer

Angle of attack vane and static pressure only

Answer

Inertial reference unit velocity outputs

Question 2

An AHRS (Attitude and Heading Reference System) uses which primary sensor technology to measure angular rates?

Accepted Answer

Solid-state ring laser gyroscopes or MEMS gyroscopes

Answer

Mechanical gyroscopes with gimbal assemblies

Answer

Magnetic flux valve only

Answer

Accelerometers with no rate sensing

Question 3

A radio altimeter (radar altimeter) measures altitude above terrain by:

Accepted Answer

Measuring the time delay of a frequency-modulated continuous wave (FMCW) signal reflected from the ground

Answer

Comparing static pressure to a sea-level reference

Answer

Triangulating GPS position against a terrain database

Answer

Detecting the change in VOR signal strength near the ground

Question 4

ADS-B Out requires aircraft to transmit which data parameters? (Select best answer)

Accepted Answer

GPS-derived position, altitude, velocity, and aircraft identification

Answer

Only transponder code and callsign

Answer

Weather conditions and fuel state

Answer

Engine parameters and maintenance codes

Question 5

EGPWS (Enhanced Ground Proximity Warning System) improves on basic GPWS primarily by adding:

Accepted Answer

A worldwide terrain database and GPS position for look-ahead terrain alerting

Answer

A louder warning tone and brighter cockpit lights

Answer

A second independent radar altimeter

Answer

Real-time weather data from ACARS

Question 6

When an autopilot system's pitch channel fails to hold altitude and continually pitches nose-up, the most logical first diagnostic step is to check:

Accepted Answer

The pitch attitude signal from the AHRS and the elevator servo feedback signal

Answer

The VHF communication system frequency

Answer

The fuel quantity indication system

Answer

The landing gear position switches

Question 7

When an avionics technician replaces a component in a pitot-static system, which regulatory requirement must be satisfied before return to service?

Accepted Answer

An altimeter system and altitude reporting equipment test per FAR 91.411/91.413

Answer

A VFR functional check at cruise altitude

Answer

A compass swing in the aircraft hangar

Answer

Recertification of the aircraft's ELT