AQT Aircraft Systems & Performance 2

Question 1

What is a stall in aviation?

Accepted Answer

A condition where the wing's angle of attack exceeds the critical angle and lift decreases dramatically, regardless of airspeed

Answer

An aerodynamic stall occurs when the angle of attack exceeds the critical angle (~15-20°), disrupting smooth airflow over the wing. The aircraft can stall at any airspeed if the critical angle is exceeded.

Question 2

What is the difference between indicated airspeed and true airspeed?

Accepted Answer

Indicated airspeed is what the instrument shows; true airspeed is corrected for altitude and temperature, reflecting actual speed through the air

Answer

Indicated airspeed (IAS) reflects dynamic pressure measured by the pitot system. At higher altitudes where air is thinner, the same IAS corresponds to a higher true airspeed (TAS) because the aircraft moves faster through less dense air.

Question 3

What is a glass cockpit?

Accepted Answer

An integrated flight deck using digital display screens to present flight, navigation, and engine information instead of traditional analog instruments

Answer

Glass cockpits use LCD or LED multi-function displays to integrate flight instruments, navigation, engine parameters, and weather data into customizable digital displays, replacing dozens of individual analog gauges.

Question 4

What is the purpose of a transponder?

Accepted Answer

To transmit an identification code and altitude information to air traffic control radar systems

Answer

Transponders respond to ATC radar interrogation by transmitting a four-digit squawk code and (Mode C/S) pressure altitude, allowing controllers to identify and track aircraft on their radar displays.

Question 5

What is the coffin corner in high-altitude flight?

Accepted Answer

The narrow speed range at very high altitude where the margin between stall speed and maximum speed becomes dangerously small

Answer

At very high altitudes, stall speed increases (due to thin air) while maximum operating speed decreases (approaching Mach limits), creating a very narrow safe speed envelope where exceeding either limit can be catastrophic.

AQT - Aviation Qualification Test Practice Test

AQT - Aviation Qualification Test Practice Test

AQT Aircraft Systems & Performance 2