PPL Air Tech - Other Engines

What are the advantages of a radial engines over the common horizontally opposed? Choose all that apply

• higher power/weight ratio

• better and more even cooling

• less drag

• uses less oil due to evenly spaced cylinders

Two stroke engines have intake and _______ stage during the same stroke

• compression

• power

• exhaust

What is a disadvantage of a two stroke engine over a four stroke engine?

• more complex

• they require more oil

• larger in size

• power/weight ratio is worse

What are advantages of a diesel/kerosene engine over an AVGAS engine? Choose all that apply

• more power produced for fuel used

• better power to weight ratio

• no carburettor or spark plugs are required

• generally lighter in construction

What is being described:

A radiator type-cooler which cools the compressed intake air to increase its density for more power per rpm

• turbocharger

• intercooler

• centrifugal coolant compressor

• dodge charger cooler

What is the purpose of a turbocharger?

• to compress intake air and is run off the engine

• to compress intake air and is run off exhaust gases

• to compress intake air through stages of discs found in a turbine engine

• to compress exhaust gases to be reused as intake air

What type of engine uses compression ignition?

• radial

• AVGAS

• high spool in-line

• diesel

Which statement is incorrect in regards to the turbine engine?

• the compressor turbine combination is called a spool

• the turbine is connected to the compressor by a shaft

• the four strokes in the turbine are the same as a piston engine

• the mixture burns continuously after start without ignition

In a turbojet most of the forward thrust is provided by ______.

In a turboprop 80% of the forward thrust is provided by _____ whereas 20% is provided by _____

• propeller, propeller, exhaust

• spark plug, exhaust, propeller

• exhaust, propeller, exhaust

• exhaust, spark plug, propeller

AVTUR is a type of ____

• AVGAS

• kerosene

• diesel

• MOGAS