Working Cycle And Airflow

Question 1

In a working cycle, these gas turbine engine works at constant what?

Answer 1

Pressure

Question 2

In a piston engine, the working cycle occurs at constant what?

Answer 2

Volume

Question 3

What is the process called when air is compressed or expanded at 100% efficiency

Answer 3

Adiabatic

Question 4

What type of air duct is required when a conversion of velocity (kinetic) to pressure is required

Answer 4

Divergent duct

Question 5

What type of nozzle is used to achieve maximum conversion of energy I’m the combustion gases to kinetic energy

Answer 5

Convergent-divergent nozzle

Question 6

What happens to pressure velocity and temperature in a divergent nozzle

Answer 6

Pressure and temperature increases and velocity decreases

Question 7

What happens to pressure velocity and temperature in a convergent nozzle

Answer 7

Pressure and temperature decreases velocity increases

Question 8

What is the high by-pass ratio of a fan engine

Answer 8

5:1

Question 9

What is a engine by-pass ratio

Answer 9

Ratio of cooled air by passed through the duct to the flow of air passed through the high pressure system