18 Questions
Which type of system uses a hydraulic mechanism to start the gas turbine engine?
Electric starters
What component is responsible for starting the gas turbine engine using electricity?
Starter-generator
Which system uses compressed air to initiate the startup process of the gas turbine engine?
Start sequencing
What controls the starting of the gas turbine engine and ensures a proper sequence?
Engine controls
Which component is responsible for controlling the typical start sequence of the gas turbine engine?
Engine controls
In the gas turbine engine, what component connects the starter motor to the engine to facilitate starting?
Reduction gear and clutch assembly
What is the primary action required of the pilot when starting an engine with an automatic sequence?
Press the start button
Why is it important to control the starting and ignition sequences in a gas turbine engine?
To ensure sufficient airflow for combustion
What must be achieved before ignition can begin in a gas turbine engine?
Minimum fuel flow rate during cranking
What system ensures a gas turbine engine starts satisfactorily?
Starting and ignition systems
Why is it critical to effectively sequence ignition and fuel flow during engine starting?
To prevent turbine damage due to over-temperature and unstable airflow
Which component is responsible for manually turning igniters on in some engine start configurations?
Pilot
What is the main purpose of the undercurrent controller in a starter-generator system?
To control the input to the starter motor
What does the motor relay in the undercurrent controller unit control?
Input to the starter
In the context of engine starting, why does the aircraft designer choose to use external electrical power instead of a self-contained start?
To conserve the aircraft battery
Which component ensures that the starter-generator system operates only when needed for engine start?
Undercurrent relay
What is a key function of the starter-generator system when used as a starter for an engine?
To maintain engine operation until self-sustained speed is reached
Which major component of a starter-generator system controls the operation of the starter when it is used as a starter?
Undercurrent controller
Explore the process of starting an aircraft engine, including sequences controlled automatically or manually by a pilot. Learn about the steps involved in enabling fuel flow, ignition, and other engine functions to initiate the start-up process.
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