Two common types of engines used in aviation are

A gas turbine engine turns a propeller with twice the power of a reciprocating engine.

Propellers become inefficient as their tips approach supersonic speed.

Propellers have a twist in them so that the amount of thrust they produce along their length is equal.

Regarding turbofan engines, all of the following are true EXCEPT

The word "turbine" means

Which of these is NOT part of a turbine engine?

Which of these is NOT part of a turbine engine?

In a scramjet engine, the air is slowed to subsonic speed before combustion takes place.

Any type of wheel device with vanes attached that is turned by the force of a moving fluid striking the vanes is known as a