AMS 274 - Final Exam [ACTUAL EXAM] LATEST VERSION
[QUESTIONS AND ANSWERS] WITH PRACTICE EXAM
DETAILED AND VERIFIED FOR GUARANTEED PASS-
LATEST UPDATE 2025 GRADED A (BRAND NEW!!)
Turbofan (Patent) - ✔✔✔✔✔ Another engine that Frank Whittle patented
(The) Combustor - ✔✔✔✔✔ Component that was the most challenging for Whittle to
design when designing the first turbine engine
Sanford Moss - ✔✔✔✔✔ GE Engineer known for his research on gas powered turbo-
superchargers
Hans Von Ohain - ✔✔✔✔✔ Patented and designed the engine used on the first
propelled jet-propelled flight
GE (General Electric) - ✔✔✔✔✔ The first USA turbine manufacturer to enter the "Jet
Race"
kinetic energy (and heat energy in the exhaust gases) into mechanical work - ✔✔✔✔✔
Energy flow of a turbine engine
Rocket, Ramjet, Pulse-jet, Turbojet - ✔✔✔✔✔ 4 Types of Jet Engines
Rocket - ✔✔✔✔✔ Jet engine that carries its own oxygen supply
Turbojet, Turbofan, Turboprop, Turboshaft - ✔✔✔✔✔ 4 Types of Turbojets
Turbojet and Turbofan - ✔✔✔✔✔ Engines that produce thrust
Turboprop and Turboshaft - ✔✔✔✔✔ Engines that produce torque
IGV (Inlet Guide Vanes) - ✔✔✔✔✔ Stationary airfoils that direct air into the
compressor blades at the optimum angle
Nozzle Diaphragm - ✔✔✔✔✔ Another name for Inlet Guide Vanes
Diffuser - ✔✔✔✔✔ Converts the kinetic(velocity) energy of the compressor discharge
air into pressure
, Annular, Can-Annular, Multi-Can - ✔✔✔✔✔ 3 types of combustors
Multi-Can - ✔✔✔✔✔ Older combustor containing multiple outer housings, each with its
own perforated inner liner
Can-Annular - ✔✔✔✔✔ Combustor more common for commercial aircraft, consisting
of an outer case containing multiple liners located radially about the axis of the engine
Annular - ✔✔✔✔✔ Combustor that is most commonly used today; said to be the most
efficient designfrom the standpoint of thermal efficiency versus weightand for its shorter
length than the other types
45 - ✔✔✔✔✔ Percent of air leaving compressor that is used for combustion
35 - ✔✔✔✔✔ Percent of air leaving compressor that is used for cooling the combustor
20 - ✔✔✔✔✔ Percent of air leaving the compressor that is used for cooling the turbine
Blending - ✔✔✔✔✔ A hand method of re-contouring damaged blades and vanes;
performed parallel to the length of the blade to minimize stress points and to restore as
smooth an aerodynamic shape as possible to the surface
Aerodynamic Blockage (Cascade/egg crate) and Mechanical Blockage (Clamshells) -
✔✔✔✔✔ Types of thrust reversers
Compressor, Combustor, Turbine - ✔✔✔✔✔ Main components of a turbojet engine
Rotor --> Stator - ✔✔✔✔✔ Order of components in the compression section
(Rotor/Stator)
Stator --> Rotor - ✔✔✔✔✔ Order of components in the Turbine section (Rotor/Stator)
Afterburner - ✔✔✔✔✔ Supplements the normal thrust by increasing the acceleration of
the air mass through an additional temperature rise
EGT (Exhaust Gas Temperature) - ✔✔✔✔✔ Temperature taken at the turbine exit
Hot Start - ✔✔✔✔✔ Event that occurs during startup when exhaust temperature
exceeds prescribed limits
Hung Start - ✔✔✔✔✔ Event that occurs during startup when RPM does not increase
to normal idle value
[QUESTIONS AND ANSWERS] WITH PRACTICE EXAM
DETAILED AND VERIFIED FOR GUARANTEED PASS-
LATEST UPDATE 2025 GRADED A (BRAND NEW!!)
Turbofan (Patent) - ✔✔✔✔✔ Another engine that Frank Whittle patented
(The) Combustor - ✔✔✔✔✔ Component that was the most challenging for Whittle to
design when designing the first turbine engine
Sanford Moss - ✔✔✔✔✔ GE Engineer known for his research on gas powered turbo-
superchargers
Hans Von Ohain - ✔✔✔✔✔ Patented and designed the engine used on the first
propelled jet-propelled flight
GE (General Electric) - ✔✔✔✔✔ The first USA turbine manufacturer to enter the "Jet
Race"
kinetic energy (and heat energy in the exhaust gases) into mechanical work - ✔✔✔✔✔
Energy flow of a turbine engine
Rocket, Ramjet, Pulse-jet, Turbojet - ✔✔✔✔✔ 4 Types of Jet Engines
Rocket - ✔✔✔✔✔ Jet engine that carries its own oxygen supply
Turbojet, Turbofan, Turboprop, Turboshaft - ✔✔✔✔✔ 4 Types of Turbojets
Turbojet and Turbofan - ✔✔✔✔✔ Engines that produce thrust
Turboprop and Turboshaft - ✔✔✔✔✔ Engines that produce torque
IGV (Inlet Guide Vanes) - ✔✔✔✔✔ Stationary airfoils that direct air into the
compressor blades at the optimum angle
Nozzle Diaphragm - ✔✔✔✔✔ Another name for Inlet Guide Vanes
Diffuser - ✔✔✔✔✔ Converts the kinetic(velocity) energy of the compressor discharge
air into pressure
, Annular, Can-Annular, Multi-Can - ✔✔✔✔✔ 3 types of combustors
Multi-Can - ✔✔✔✔✔ Older combustor containing multiple outer housings, each with its
own perforated inner liner
Can-Annular - ✔✔✔✔✔ Combustor more common for commercial aircraft, consisting
of an outer case containing multiple liners located radially about the axis of the engine
Annular - ✔✔✔✔✔ Combustor that is most commonly used today; said to be the most
efficient designfrom the standpoint of thermal efficiency versus weightand for its shorter
length than the other types
45 - ✔✔✔✔✔ Percent of air leaving compressor that is used for combustion
35 - ✔✔✔✔✔ Percent of air leaving compressor that is used for cooling the combustor
20 - ✔✔✔✔✔ Percent of air leaving the compressor that is used for cooling the turbine
Blending - ✔✔✔✔✔ A hand method of re-contouring damaged blades and vanes;
performed parallel to the length of the blade to minimize stress points and to restore as
smooth an aerodynamic shape as possible to the surface
Aerodynamic Blockage (Cascade/egg crate) and Mechanical Blockage (Clamshells) -
✔✔✔✔✔ Types of thrust reversers
Compressor, Combustor, Turbine - ✔✔✔✔✔ Main components of a turbojet engine
Rotor --> Stator - ✔✔✔✔✔ Order of components in the compression section
(Rotor/Stator)
Stator --> Rotor - ✔✔✔✔✔ Order of components in the Turbine section (Rotor/Stator)
Afterburner - ✔✔✔✔✔ Supplements the normal thrust by increasing the acceleration of
the air mass through an additional temperature rise
EGT (Exhaust Gas Temperature) - ✔✔✔✔✔ Temperature taken at the turbine exit
Hot Start - ✔✔✔✔✔ Event that occurs during startup when exhaust temperature
exceeds prescribed limits
Hung Start - ✔✔✔✔✔ Event that occurs during startup when RPM does not increase
to normal idle value
