4. Propulsion
Gas Turbines — Quiz
Test your understanding of gas turbines with 5 practice questions.
Practice Questions
Question 1
Which thermodynamic cycle is most commonly used to model the operation of a gas turbine engine?
Question 2
In a turbofan engine, which component directs a portion of the airflow around the core for improved efficiency?
Question 3
For an ideal Brayton cycle with compressor pressure ratio $\pi_c=10$ and specific heat ratio $\gamma=1.4$, what is the ideal thermal efficiency $\eta_{th}$? Show your calculation.
Question 4
A gas turbine engine increases its turbine inlet temperature (TIT). What is the primary effect on engine performance?
Question 5
When optimizing a gas turbine cycle, which method involves recovering heat from turbine exhaust to preheat compressor discharge air?