BOOK reading Flashcards
A machine system that produces thrust to to push an object forward.
Propulsion system
What is the difference between jet engine and rocket engine?
- Rocket engine is air-independent
- Jet Engine is air dependent
Ramjets cannot produce thrust when ________.
Stationary, it only for constant high speeds
The compressor or burner is also called _______ because all gas turbine engines have these components.
Core of the Engine
The sole function of turbine is to ______ the compressor.
Turn
newton’s 2nd law formula
F=MxA
Divergent Duct
Velocity - Decrease
Pressure - increase
Temperature - Incresing
_______ is the measure of effectiveness with which an engine converts kinetic energy into useful work
it also describes the comparison between an engine’s exhaust velocity versus aircraft speed
propulsive efficiency
_______ is the ratio of the total work produced by the engine to the fuel (chemical) energy input
thermal efficiency
Which of the following best describes an engine’s thermal efficiency?
ratio of the work produced by the engine to the fuel energy input
