ACS Airman Certification Practice Test

Question: 1 / 400

What does the hydraulic system in an aircraft primarily control?

Airspeed

Fuel flow

Landing gear operation

The hydraulic system in an aircraft primarily controls critical mechanical functions, one of the most notable being the operation of the landing gear. The hydraulic system utilizes fluid pressure to facilitate swift and efficient motion of various components. This is crucial for deploying and retracting the landing gear during takeoff and landing, ensuring that the aircraft can operate safely and effectively.

In addition to landing gear, hydraulic systems often control other systems such as brakes and flaps, which underscores their importance in aircraft operations. In contrast, the other options relate to different systems: airspeed is typically monitored through air data systems; fuel flow is managed by fuel systems; and electrical output is handled by electrical systems. Understanding the functions of hydraulic systems helps in recognizing their vital role in aircraft operations overall.

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Electrical output

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