pplant 2 (prelim)

Question 1

If the RPM of an axial-flow compressor remains constant, the angle of attack of the rotor blades can be changed by

Answer 1

changing the velocity of airflow

Question 2

(1) In a turbine engine axial-flow compressor, each consecutive pair of rotor and stator blades constitutes a pressure stage.
(2) In a turbine engine axial-flow compressor, the number of rows of stages is determined by the amount of air and total pressure rise required

Answer 2

both No.1 and No.2 are true

Question 3

A turbine engine hot section is particularly susceptible to which kind of damage?

Answer 3

Cracking

Question 4

Which of the following is the ultimate limiting factor of turbine engine operation?

Answer 4

Turbine inlet temperature

Question 5

The non-rotating axial-flow compressor airfoils in an aircraft gas turbine engine, are called

Answer 5

stator vanes