AET Instrument Systems

Question 1

What does an Air Data Computer (ADC) primarily compute?

Accepted Answer

Airspeed, altitude, vertical speed, and Mach number from pitot-static data

Answer

Fuel quantity and flow

Answer

Engine RPM and EGT

Answer

Magnetic heading and drift

Question 2

What type of sensor is used to measure outside air temperature (OAT) in avionics systems?

Accepted Answer

Platinum resistance thermometer (PRT/TAT probe)

Answer

Thermocouple

Answer

Thermistor only

Answer

Bimetallic strip

Question 3

What is the function of an Inertial Reference System (IRS)?

Accepted Answer

Measure and integrate accelerations to determine attitude, heading, and position

Answer

Provide GPS position only

Answer

Decode VOR/ILS signals

Answer

Monitor engine parameters

Question 4

Which instrument displays a combination of attitude, heading, and navigation information on a single screen?

Accepted Answer

EFIS/PFD (Primary Flight Display)

Answer

ADI only

Answer

EICAS

Answer

TCAS display

Question 5

What does RVSM stand for and why is accurate altimetry critical for it?

Accepted Answer

Reduced Vertical Separation Minima — aircraft must maintain altitude within ±60 ft

Answer

Radar Vectoring and Speed Management

Answer

Required VOR Separation Minimum

Answer

Remote Vertical Stability Monitor

Question 6

What is the purpose of a pitot heater in the aircraft instrument system?

Accepted Answer

Prevent ice formation in the pitot tube that would cause false airspeed readings

Answer

Warm the cockpit instruments

Answer

Heat the static ports

Answer

Defrost the windshield