Podcast
Questions and Answers
Where is the starter physically located on a turbine engine?
Where is the starter physically located on a turbine engine?
- The fan case
- The high pressure compressor case
- The internal gearbox
- The accessory gearbox (correct)
What type of starter does a large aircraft engine most commonly use?
What type of starter does a large aircraft engine most commonly use?
- Electric
- Hydraulic (correct)
- Fuel-powered generator starter
- Pneumatic
Identify a common inspection item on a starter-generator.
Identify a common inspection item on a starter-generator.
- Impeller condition
- Start valve operation (located upstream from the starter)
- Igniter plug condition (correct)
- Brush wear
What are the consequences of a pneumatic starter not engaging when an engine start is initiated?
What are the consequences of a pneumatic starter not engaging when an engine start is initiated?
You have just selected 'start' on a double-spool turbofan engine and confirmed that the start valve has opened. What is the first engine parameter that you would observe to confirm starter engagement?
You have just selected 'start' on a double-spool turbofan engine and confirmed that the start valve has opened. What is the first engine parameter that you would observe to confirm starter engagement?
Which scenario could cause an engine tailpipe fire to occur during an engine shutdown procedure?
Which scenario could cause an engine tailpipe fire to occur during an engine shutdown procedure?
Which engine parameter is commonly used with a tach generator to provide display information?
Which engine parameter is commonly used with a tach generator to provide display information?
What engine parameter is referenced to determine when to select fuel & ignition 'on' during a double-spool engine start?
What engine parameter is referenced to determine when to select fuel & ignition 'on' during a double-spool engine start?
In an engine oil pressure system, which engine indication would be displayed?
In an engine oil pressure system, which engine indication would be displayed?
What is an example of an engine 'condition' indicator?
What is an example of an engine 'condition' indicator?
Which two parameters are used to determine engine pressure ratio (EPR)?
Which two parameters are used to determine engine pressure ratio (EPR)?
Which system is used as a performance indicator on a turboprop engine?
Which system is used as a performance indicator on a turboprop engine?
What is the purpose of the PT6 compressor turbine (CT disk)?
What is the purpose of the PT6 compressor turbine (CT disk)?
Where is Station 2.5 located in the PT6 illustration?
Where is Station 2.5 located in the PT6 illustration?
What type of combustion chamber is installed in the PT6A engine?
What type of combustion chamber is installed in the PT6A engine?
Which gear arrangement does the PT6 reduction gearbox have?
Which gear arrangement does the PT6 reduction gearbox have?
What does positioning the slide valve on the right side of the chamber indicate about the fuel heater status?
What does positioning the slide valve on the right side of the chamber indicate about the fuel heater status?
What describes the compressor arrangement on the PT6A engine?
What describes the compressor arrangement on the PT6A engine?
What is the purpose of the second stage fuel pump in the diagram?
What is the purpose of the second stage fuel pump in the diagram?
Apart from scheduling primary and secondary fuel flow, what is another function of the pressurization and dump valve in the diagram?
Apart from scheduling primary and secondary fuel flow, what is another function of the pressurization and dump valve in the diagram?
What type of fuel nozzle is depicted in the illustration?
What type of fuel nozzle is depicted in the illustration?
Which type of seals are used to keep the oil in the bearing compartment according to the diagram?
Which type of seals are used to keep the oil in the bearing compartment according to the diagram?
Among the options provided, what is a function of a pressurization and dump (P & D) valve as per the diagram?
Among the options provided, what is a function of a pressurization and dump (P & D) valve as per the diagram?
What is the purpose of the fuel heater shown in the diagram?
What is the purpose of the fuel heater shown in the diagram?
