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AVSC 3300 Jet Transport Systems fully solved rated A+
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AVSC 3300 Jet Transport SystemsCentrifugal-flow compressors are more durable than Axial-flow models. - correct answer ✔✔True
What is the advantage of using a dual-compressor in a turbine engine? - correct answer ✔✔They deliver
higher compression ratios than single-compressor models
What is a unit consisting of more than one compressor stages known as in a turbine engine? - correct
answer ✔✔A multi-stage compressor
What does the Nozzle do on a turbine engine? - correct answer ✔✔It accelerates the velocity of the
high-energy gases escaping from the gas generator
In a turbine engine, each compressor wheel or row of rotor and stator blades is defined as one _____. -
correct answer ✔✔Compressor stage
An axial-flow compressor is made up of an alternating series of _____. - correct answer ✔✔Rotating
rotor blades and stationary stator vanes
The high-pressure compressor is driven by the high-pressure turbine and is referred to as the_____shaft.
- correct answer ✔✔N2
What is the term used to describe a turbine engine that uses two compressors in tandem that are
mounted on separate shafts and turn a different speeds. - correct answer ✔✔Dual-compression engine
What do Gas turbine engines share jet propulsion principles with? - correct answer ✔✔Party balloons
that have been inflated and released
A centrifugal-flow compressor can normally attain a compression ratio of 10:1, but an axial-flow model
may achieve ratios of more than _____. - correct answer ✔✔25:1
, During engine start on a turbine engine, what is used to light the fuel-air mixture in the combustion
chamber? - correct answer ✔✔Igniters
In jets_____refers to the ratio of engine output pressure to engine intake pressure. - correct answer
✔✔Engine pressure ratio
In a_____turboprop engine, the propeller is driven directly from the compressor shaft through a
reduction gear assembly. - correct answer ✔✔Direct Drive
Mark the characteristics of turbojet engines. Mark all that apply - correct answer ✔✔Good performance
at high speeds
Inefficient at low speeds
Inefficient at low altitudes
Good performance at high altitudes
How does bypass air affect the performance of a turbofan engine? - correct answer ✔✔Bypass air
generates a great deal of thrust
Turbofan engines are louder and less fuel efficient than turbojet engines. - correct answer ✔✔False
What is bypass air? - correct answer ✔✔The portion of intake air that flows through the fan section
rather than through the gas generator section of the engine.
Regarding turbojets, turbofans, and turboprops the largest conceptual difference between these engines
is_____. - correct answer ✔✔How engine output is translated into thrust to propel and aircraft
How does a turboprop create a reverse thrust? - correct answer ✔✔Propeller blade angle is gradually
changed from positive blade angle to negative blade angles
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