ADX Vehicle Systems and Operations 2

Question 1

What is the primary purpose of an aircraft's hydraulic system?

Accepted Answer

To power flight control surfaces, landing gear, and brakes

Answer

Hydraulic systems power critical aircraft systems including flight controls, landing gear actuation, and braking.

Question 2

Which component converts mechanical energy into electrical energy on most large transport aircraft?

Accepted Answer

Integrated drive generator (IDG)

Answer

Integrated drive generators (IDGs) are engine-driven generators that produce AC electrical power for transport category aircraft.

Question 3

What does the term 'MEL' stand for in aircraft operations?

Accepted Answer

Minimum Equipment List

Answer

The Minimum Equipment List (MEL) specifies which inoperative systems or components still allow dispatch of the aircraft.

Question 4

When is an aircraft's auxiliary power unit (APU) typically used?

Accepted Answer

To provide ground power and bleed air when engines are not running

Answer

The APU provides electrical power and pneumatic bleed air for air conditioning and engine starting when main engines are shut down.

Question 5

What is the function of a thrust reverser on a jet aircraft?

Accepted Answer

Redirect engine thrust forward to assist in deceleration after landing

Answer

Thrust reversers redirect exhaust thrust forward to help slow the aircraft after touchdown, reducing brake wear and stopping distance.

(ADX) Aircraft Dispatcher Practice Test