WorksheetsJet engines
Total questions: 15
Worksheet time: 7mins
A turbo- shaft or turbo-prop engine can be thought of as a
mix of fuel and air
mix between a donkey and a horse
blend of efficiency and practicality
hybrid of a jet and a propeller engine
Example of an aircraft with a TURBO SHAFT engine
A "ramjet" operates by combusting fuel in a stream of air compressed by aircraft or missile's
speed / forward motion
navigation system
radiator
Cylinders
What happens in the combustion chamber?
Air is cooled and mixed with oil.
Bypass air and fuel are ignited.
Fuel and air mix and burn.
The compressor squeezes air until the air get hotter and the air ________ increase.
Pressure
Ambient
Turbine
Flight
Effective combustion requires air to be at
Moderately high temperature and pressure
Extremely high temperature and atmospheric pressure
Low temperature and high pressure
Moderately high temperature and negative pressure
Where does the compressor receive its rotational energy from?
The impeller
The turbine
The stator
The starter motor
A turbo-fan engine sucks in more air to
Improve cooling
Reduce overall weight
Provide more thrust
Reduce the warm-up time
What is the name of the section labeled 3?
Combustor
Compressor
Fan
Turbine
Of the possible answers given, who gets credit for having invented the jet engine?
What is the benefit to a low-bypass jet engine?
Supersonic Flight
More compact
Afterburner modifications available
All of the above
What is the benefit to a HIGH bypass jet engine?
Much quieter than other engine options
More efficiency
Higher thrust (non-afterburning)
All of the above
What is the job of the turbines in the back of a jet engine?
To provide thrust
To spin the compressor stage
To mitigate noise
To provide electrical power to the aircraft
Why would high bypass air benefit commercial aircraft
Bypass air surrounds the hot jet exhaust and makes the aircraft quieter
Bypass air powers all of the electronics that passengers need for their iphones
Bypass air is clean so it reduces the aircraft's carbon footprint
High bypass engines are only in military aircraft.
