Podcast
Questions and Answers
What is the main task of the turbine in a turbojet engine?
What is the main task of the turbine in a turbojet engine?
- Providing power to drive the compressor and accessories (correct)
- Absorbing kinetic energy from the exhaust gases
- Generating electricity for the accessories
- Expanding gases to a higher pressure and temperature
Where is the turbine nozzle typically located in a gas turbine engine?
Where is the turbine nozzle typically located in a gas turbine engine?
- Aft of the turbine wheel (correct)
- Around the stator elements
- Directly in front of the combustion section
- Inside the compressor
What percentage of the total pressure energy from the exhaust gases does the turbine absorb in a turbojet engine?
What percentage of the total pressure energy from the exhaust gases does the turbine absorb in a turbojet engine?
- 20-40%
- 60-80% (correct)
- 10-30%
- 90-100%
Which part of the gas turbine engine encloses the turbine rotor and stator assembly?
Which part of the gas turbine engine encloses the turbine rotor and stator assembly?
What does a stator element in the turbine section of a turbojet engine mostly refer to?
What does a stator element in the turbine section of a turbojet engine mostly refer to?
What is the primary role of the turbine in a gas turbine engine?
What is the primary role of the turbine in a gas turbine engine?
What method is used to prevent stress and warping of the vanes during thermal expansion in turbines?
What method is used to prevent stress and warping of the vanes during thermal expansion in turbines?
What components make up the rotor element of the turbine section?
What components make up the rotor element of the turbine section?
What helps keep turbine blades and inlet nozzles cooler in engines?
What helps keep turbine blades and inlet nozzles cooler in engines?
Why are most turbine blades precision cast and finish ground to the desired shape?
Why are most turbine blades precision cast and finish ground to the desired shape?
What does the assembly of turbine inlet nozzle vanes do to the turbine wheel?
What does the assembly of turbine inlet nozzle vanes do to the turbine wheel?
Which part is referred to as the turbine disk without blades?
Which part is referred to as the turbine disk without blades?
What is the role of the disk in a turbine?
What is the role of the disk in a turbine?
In an impulse turbine, what happens when the turbine blades change the direction of airflow?
In an impulse turbine, what happens when the turbine blades change the direction of airflow?
What type of turbine blade designs combine both impulse and reaction actions?
What type of turbine blade designs combine both impulse and reaction actions?
How does a reaction turbine produce a turning force?
How does a reaction turbine produce a turning force?
What action does the turbine wheel perform in an impulse turbine?
What action does the turbine wheel perform in an impulse turbine?
What is the purpose of combining impulse and reaction blade designs in a turbine?
What is the purpose of combining impulse and reaction blade designs in a turbine?
What is the primary function of the converging portion of the exhaust nozzle?
What is the primary function of the converging portion of the exhaust nozzle?
Where is the accessory section typically located in a gas turbine engine?
Where is the accessory section typically located in a gas turbine engine?
What is one of the secondary functions of the accessory section in a gas turbine engine?
What is one of the secondary functions of the accessory section in a gas turbine engine?
How does a converging-diverging duct increase engine thrust?
How does a converging-diverging duct increase engine thrust?
What powers the accessories in a gas turbine engine?
What powers the accessories in a gas turbine engine?
What role does the accessory gearbox play in a gas turbine engine?
What role does the accessory gearbox play in a gas turbine engine?
What is the main difference between a single-stage rotor turbine and multiple spool engines?
What is the main difference between a single-stage rotor turbine and multiple spool engines?
Which type of engine is characterized by having a low-pressure spool and a high-pressure spool?
Which type of engine is characterized by having a low-pressure spool and a high-pressure spool?
What is the function of the exhaust section in a gas turbine engine?
What is the function of the exhaust section in a gas turbine engine?
In what way do the components of an exhaust section affect the flow of gases?
In what way do the components of an exhaust section affect the flow of gases?
Which engine configuration is considered the simplest version of a pure turbojet engine?
Which engine configuration is considered the simplest version of a pure turbojet engine?
What is the purpose of having multiple components in an exhaust section?
What is the purpose of having multiple components in an exhaust section?
