AMS 274 - Final Cake Eating Sesh Exam Questions and
Answers
Who patented the first turbine engine(to function on a test stand)? - correct
answersFrank Whittle
What did Frank Whittle also patent? - correct answersTurbofan
What was Whittle's most challenging obstacle designing the turbine engine? - correct
answersThe combustor
What was General Electric's part in turbine engine history? - correct answersFirst USA
turbine manufacturer in the "Jet Race"
4 types of jet engines - correct answers- Rocket
- Ramjet
- Pulsejet
- Turbojet
What type of jet engine carries it's own oxygen supply? - correct answersRocket
What are the 4 types of turbojets? - correct answers- Turbojet
- Turbofan
- Turboprop
- Turboshaft
2 types of thrust producing engines - correct answers- Turbojet
- Turbofan
2 types of torque producing engines - correct answers- Turboprop
- Turboshaft
Inlet Guide Vane (IGV) - correct answersStationary airfoils that direct air into the
compressor blades at the optimum angle
Nozzle Diaphragm - correct answersStationary airfoils that direct air into the turbine
blades at the optimum angle
Diffuser - correct answersConverts the kinetic(velocity) energy of the compressor
discharge air into pressure
, 3 types of combustors - correct answers- Annular
- Can-Annular
- Multi-Can
The compressor section consists of what in what order? - correct answersRotor then
stator
The turbine section consists of what in what order? - correct answersStator then Rotor
Afterburner - correct answersSupplements the normal thrust by increasing the
acceleration of the air mass through an additional temperature rise
Exhaust Gas Temperature (EGT) - correct answersTemperature taken at the turbine
exit
Hot Start - correct answersExhaust temperature exceeds prescribed limits during start
Hung Start - correct answersDuring startup, RPM does not increase to normal idle value
Lean-Die-Out - correct answersA weak fuel to air mixture along with normal airflow
through a turbine engine
Engine Pressure Ratio (EPR) - correct answersRatio of the pressure exiting the turbine
section and the pressure entering the compressor inlet
Pressure ratio formula - correct answersTurbine Outlet / Compressor Inlet
Standard Day Conditions - correct answersPressure: 29.92 Hg
Temperature: 59°F
Force Formula - correct answersForce (F) = Pressure (P) x Area (A)
Velocity Formula - correct answersVelocity (V) = Distance (D) / Time (T)Acceleration
Formula
Acceleration Formula - correct answersAcceleration (A) = Final Velocity (V2) - Initial
Velocity (V1) / Time (T)
The highest gas pressure/static pressure is between the _____ and the _____. - correct
answersDiffuser
A turbine engine hot section is particularly susceptible to which kind of damage? -
correct answersCracking
Hot Section - correct answersCompressor, Turbine, Exhaust
Cold section - correct answersCompressor section
Answers
Who patented the first turbine engine(to function on a test stand)? - correct
answersFrank Whittle
What did Frank Whittle also patent? - correct answersTurbofan
What was Whittle's most challenging obstacle designing the turbine engine? - correct
answersThe combustor
What was General Electric's part in turbine engine history? - correct answersFirst USA
turbine manufacturer in the "Jet Race"
4 types of jet engines - correct answers- Rocket
- Ramjet
- Pulsejet
- Turbojet
What type of jet engine carries it's own oxygen supply? - correct answersRocket
What are the 4 types of turbojets? - correct answers- Turbojet
- Turbofan
- Turboprop
- Turboshaft
2 types of thrust producing engines - correct answers- Turbojet
- Turbofan
2 types of torque producing engines - correct answers- Turboprop
- Turboshaft
Inlet Guide Vane (IGV) - correct answersStationary airfoils that direct air into the
compressor blades at the optimum angle
Nozzle Diaphragm - correct answersStationary airfoils that direct air into the turbine
blades at the optimum angle
Diffuser - correct answersConverts the kinetic(velocity) energy of the compressor
discharge air into pressure
, 3 types of combustors - correct answers- Annular
- Can-Annular
- Multi-Can
The compressor section consists of what in what order? - correct answersRotor then
stator
The turbine section consists of what in what order? - correct answersStator then Rotor
Afterburner - correct answersSupplements the normal thrust by increasing the
acceleration of the air mass through an additional temperature rise
Exhaust Gas Temperature (EGT) - correct answersTemperature taken at the turbine
exit
Hot Start - correct answersExhaust temperature exceeds prescribed limits during start
Hung Start - correct answersDuring startup, RPM does not increase to normal idle value
Lean-Die-Out - correct answersA weak fuel to air mixture along with normal airflow
through a turbine engine
Engine Pressure Ratio (EPR) - correct answersRatio of the pressure exiting the turbine
section and the pressure entering the compressor inlet
Pressure ratio formula - correct answersTurbine Outlet / Compressor Inlet
Standard Day Conditions - correct answersPressure: 29.92 Hg
Temperature: 59°F
Force Formula - correct answersForce (F) = Pressure (P) x Area (A)
Velocity Formula - correct answersVelocity (V) = Distance (D) / Time (T)Acceleration
Formula
Acceleration Formula - correct answersAcceleration (A) = Final Velocity (V2) - Initial
Velocity (V1) / Time (T)
The highest gas pressure/static pressure is between the _____ and the _____. - correct
answersDiffuser
A turbine engine hot section is particularly susceptible to which kind of damage? -
correct answersCracking
Hot Section - correct answersCompressor, Turbine, Exhaust
Cold section - correct answersCompressor section
