AMS 274 - Unit I Quiz – Questions and Answers A+ Scores

AMS 274 - Unit I Quiz – Questions and Answers A+ Scores
What is a compressor stage made of? - -A rotor then stator

-What is a turbine stage made of? - -A stator then a rotor

-What does the IGV do? - -Guide air to the compressor

-What does IGV stand for? - -Inlet Guide Vanes

-What are the parts of a centrifugal compressor? - -Impeller and Diffuser

-What happens to press and velocity in a convergent duct? - -V Up and P Down

-What happens to press and velocity in a divergent duct? - -V Down and P Up

-How much thrust comes from the Prop? - -75-95%

-How much thrust comes from the exhaust? - -5-25%

-What is CPR? - -Compressor Pressure Ratio

-What is the formula for CPR? - -CDP/CIP

-What did Whittle have the most difficulty with? - -The Combustor

-What is the most fuel efficient turbine? - -UDF

-What is the pressure of the exhaust coming out of a turbine that is "Choked"? - -The
exhaust is higher pressure than ambient

-What if Fg? - -Gross Thrust

-What is Fn? - -Net Thrust

-What is the High Bypass ratio? - -4:1 to 9:1

-What is the Medium Bypass Ratio? - -2:1 to 3:1

-What is the Low Bypass Ratio? - -1:1

-What are the parts of a turbine engine? - -Inlet, Compressor, Diffuser, Combustor, Turbine
and Exhaust

-What is another name for a LPC? - -Low Speed Compressor