Brake Systems and Fire Protection in Aircraft

These flashcards cover key terms and concepts related to brake systems, fire protection, and oxygen systems in aircraft for the exam.

Brake Caliper

A component that holds the brake pads and applies pressure to the brake disc to create friction for stopping.

Fixed-Disc Brakes

Brake system design where the disc is rigidly fastened to the wheel, allowing the caliper to float laterally.

Hydraulic Fluid

Fluid used in hydraulic systems including brakes, necessary for transferring brake force.

Self-Adjusting Mechanism

A system in brakes that maintains consistent clearance between the brake pads and disc regardless of wear.

Bleed Port

An opening in a hydraulic system designed for removing trapped air to improve brake performance.

Multiple-Disc Brakes

Heavy-duty brakes used in large aircraft, consisting of several discs to enhance braking performance.

Carbon Brakes

Brakes made from carbon fiber materials, lighter and can withstand higher temperatures compared to steel brakes.

Anti-Skid System

A system in aircraft that prevents the wheels from locking up during braking, enhancing control.

Turboprop Engine

An aircraft engine that uses a turbine to drive a propeller, which may also be configured to provide cabin pressurization.

Continuous-Flow Oxygen Systems

Oxygen delivery systems that provide a constant supply of oxygen, often used in small and twin-engine aircraft.

Diluter-Demand Regulator

A type of oxygen regulator that adjusts the flow based on cabin altitude, used for economical oxygen usage.

Thermal Switch

A device in fire detection systems that activates an alarm when a certain temperature threshold is reached.

Halon 1301

A halogenated compound used as a fire extinguishing agent in aviation, effective but banned due to ozone depletion.

Smoke Detector

A device that detects smoke to provide an early warning of a potential fire in areas such as cargo compartments.

Continuous Loop Detection System

Fire detection system using a loop of sensing wire to continuously monitor for temperature changes, providing rapid fire alerts.

Compressor

A component of the vapor cycle air conditioning system that circulates refrigerant to remove heat from the cabin.

Receiver Dryer

A component that acts as a reservoir in vapor cycle systems, storing refrigerant and removing moisture.

Expansion Valve

Device in a refrigeration system that controls the flow of refrigerant and reduces its pressure.

Cabin Altitude

The equivalent altitude at which the pressure inside the aircraft cabin is sufficient for optimal human function.