POWERPLANT ASA BAKER SCHOOL FAA
ORAL QUESTIONS FINAL SCRIPT 2026
PRACTICE SOLUTIONS GRADED A+
⩥ What is checked on engine run up to determine the operational
condition of the engine?(AM.III.A.K2).
Answer: Idling RPM and manifold pressure, engine acceleration,
maximum static RPM and manifold pressure, magneto drop, ignition
switch safety check, propeller pitch change, propeller feathering, oil
pressure, fuel pressure, and fuel flow.
⩥ How are the 4-strokes of a reciprocating engine similar to the sections
of a turbine engine?
(AM.III.B.K1).
Answer: Intake = air inlet section,
compression = compression section,
Ignition and power = combustion and turbine sections,
Exhaust = exhaust section.
⩥ What type of turbojet engine is commonly used in commercial
aviation due to lower noise and better fuel consumption?(AM.III.B.K1).
Answer: High-bypass turbofan engines.
,⩥ What are the 2 types of turbine compressors?(AM.III.B.K3).
Answer: Centrifugal flow and axial flow
⩥ What is meant by a hot-section inspection?(AM.III.B.K5).
Answer: An inspection of the hot section of a turbine engine. The hot
section includes the combustors, the turbine, and the exhaust system.
⩥ What is meant by on-condition maintenance of a turbine
engine?(AM.III.B.K5).
Answer: The monitoring of the engine performance at regular intervals
and determining when maintenance is required based on certain
operating parameters specified by the engine manufacturer.
⩥ What checks of a turbine engine are necessary to verify preflight
condition?(AM.III.B.K5).
Answer: a. Inspect the cowling and all air inlet areas and attachment of
the engine to the airframe.
b. Inspect the inlet guide vanes and the first stage of the compressor or
fan blades.
c. Check for unusual noise when the compressor is rotated.
d. Inspect the rear turbine and exhaust system.
e. Check the quantity of the lubricating oil for the engine and the
constant-speed drive unit.
f. Check the ignition system for operation by listening for the sparks.
, ⩥ Where are most APU's located in modern jet transport
aircraft?(AM.III.B.K10).
Answer: In the tail cone of the fuselage
⩥ What is the function of an APU?(AM.III.B.K10).
Answer: An APU provides electric power and compressed air when the
main engines are not operating.
⩥ What are 2 sources of compressed air from an APU?(AM.III.B.K10).
Answer: From bleed air from the APU turbine compressor, or from a
load compressor driven by a free turbine in the engine
⩥ Where in maintenance information based on the ATA-100 system
would you find instructions for inspecting and servicing the engine of an
airborne APU?(AM.III.B.K10).
Answer: In section 49-20
⩥ How is most of the troubleshooting done for a modern
APU?(AM.III.B.K10).
Answer: By the fault codes generated by the FADEC.
⩥ What ensures that an APU will not be shut down while it is too
hot?(AM.III.B.K10).
ORAL QUESTIONS FINAL SCRIPT 2026
PRACTICE SOLUTIONS GRADED A+
⩥ What is checked on engine run up to determine the operational
condition of the engine?(AM.III.A.K2).
Answer: Idling RPM and manifold pressure, engine acceleration,
maximum static RPM and manifold pressure, magneto drop, ignition
switch safety check, propeller pitch change, propeller feathering, oil
pressure, fuel pressure, and fuel flow.
⩥ How are the 4-strokes of a reciprocating engine similar to the sections
of a turbine engine?
(AM.III.B.K1).
Answer: Intake = air inlet section,
compression = compression section,
Ignition and power = combustion and turbine sections,
Exhaust = exhaust section.
⩥ What type of turbojet engine is commonly used in commercial
aviation due to lower noise and better fuel consumption?(AM.III.B.K1).
Answer: High-bypass turbofan engines.
,⩥ What are the 2 types of turbine compressors?(AM.III.B.K3).
Answer: Centrifugal flow and axial flow
⩥ What is meant by a hot-section inspection?(AM.III.B.K5).
Answer: An inspection of the hot section of a turbine engine. The hot
section includes the combustors, the turbine, and the exhaust system.
⩥ What is meant by on-condition maintenance of a turbine
engine?(AM.III.B.K5).
Answer: The monitoring of the engine performance at regular intervals
and determining when maintenance is required based on certain
operating parameters specified by the engine manufacturer.
⩥ What checks of a turbine engine are necessary to verify preflight
condition?(AM.III.B.K5).
Answer: a. Inspect the cowling and all air inlet areas and attachment of
the engine to the airframe.
b. Inspect the inlet guide vanes and the first stage of the compressor or
fan blades.
c. Check for unusual noise when the compressor is rotated.
d. Inspect the rear turbine and exhaust system.
e. Check the quantity of the lubricating oil for the engine and the
constant-speed drive unit.
f. Check the ignition system for operation by listening for the sparks.
, ⩥ Where are most APU's located in modern jet transport
aircraft?(AM.III.B.K10).
Answer: In the tail cone of the fuselage
⩥ What is the function of an APU?(AM.III.B.K10).
Answer: An APU provides electric power and compressed air when the
main engines are not operating.
⩥ What are 2 sources of compressed air from an APU?(AM.III.B.K10).
Answer: From bleed air from the APU turbine compressor, or from a
load compressor driven by a free turbine in the engine
⩥ Where in maintenance information based on the ATA-100 system
would you find instructions for inspecting and servicing the engine of an
airborne APU?(AM.III.B.K10).
Answer: In section 49-20
⩥ How is most of the troubleshooting done for a modern
APU?(AM.III.B.K10).
Answer: By the fault codes generated by the FADEC.
⩥ What ensures that an APU will not be shut down while it is too
hot?(AM.III.B.K10).
