AMS 274 TURBINES FINAL ACTUAL PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ newtons 2nd law. Answer: Force = mass x acceleration
◉ newtons 3rd law. Answer: For every action there is an equal and
opposite reaction (one in one out theory)
◉ bernoullis principle. Answer: air acts as an incompressible fluid
when flowing at subsonic speeds; as the air velocity increases
pressure decreases
◉ otto's cycle. Answer: operating principle for reciprocating engine,
4 stroke 5 event cycle, intake, compression, ignition, power, exhaust
◉ brayton cycle. Answer: constant pressure cycle, a thermodynamic
cycle used to describe continuous combustion like in turbine
engines, intake, compression, combustion, and exhaust
◉ What are the disadvantages of FADEC (3). Answer: higher system
complexity, greater reliance on electrical power, potential for total
system failure
, ◉ What are the advantages of a FADEC system (4). Answer: enhance
fuel efficiency, improve thrust management, automatic engine
condition monitoring, reduce pilot workload
◉ is FADEC an airframe or engine component. Answer: engine
◉ what does FADEC stand for. Answer: Full Authority Digital Engine
Control
◉ what are the advantages of a free turbine. Answer: prop can be
held at low rpm during taxi, engine is easier to start, propeller and
prop gearbox do not directly transmit vibrations into the gas
generator, a rotor brake can be used to stop prop movement during
a/c loading when engine shutdown is not desired
◉ Why do compressor stalls happen. Answer: turbulent/disruptive
airflow to the engine caused by: excessive fuel flow result of
acceleration, excessively lean mix result of deceleration,
contaminated compressor/damaged components
◉ what indication shows in the cockpit to indicate a compressor
stall. Answer: audible noise, fluctuation in RPM, increase in EGT
◉ what are the sections of a turbojet engine. Answer: compressor,
combustor, and turbine.
QUESTIONS WITH SOLUTIONS GRADED A+
◉ newtons 2nd law. Answer: Force = mass x acceleration
◉ newtons 3rd law. Answer: For every action there is an equal and
opposite reaction (one in one out theory)
◉ bernoullis principle. Answer: air acts as an incompressible fluid
when flowing at subsonic speeds; as the air velocity increases
pressure decreases
◉ otto's cycle. Answer: operating principle for reciprocating engine,
4 stroke 5 event cycle, intake, compression, ignition, power, exhaust
◉ brayton cycle. Answer: constant pressure cycle, a thermodynamic
cycle used to describe continuous combustion like in turbine
engines, intake, compression, combustion, and exhaust
◉ What are the disadvantages of FADEC (3). Answer: higher system
complexity, greater reliance on electrical power, potential for total
system failure
, ◉ What are the advantages of a FADEC system (4). Answer: enhance
fuel efficiency, improve thrust management, automatic engine
condition monitoring, reduce pilot workload
◉ is FADEC an airframe or engine component. Answer: engine
◉ what does FADEC stand for. Answer: Full Authority Digital Engine
Control
◉ what are the advantages of a free turbine. Answer: prop can be
held at low rpm during taxi, engine is easier to start, propeller and
prop gearbox do not directly transmit vibrations into the gas
generator, a rotor brake can be used to stop prop movement during
a/c loading when engine shutdown is not desired
◉ Why do compressor stalls happen. Answer: turbulent/disruptive
airflow to the engine caused by: excessive fuel flow result of
acceleration, excessively lean mix result of deceleration,
contaminated compressor/damaged components
◉ what indication shows in the cockpit to indicate a compressor
stall. Answer: audible noise, fluctuation in RPM, increase in EGT
◉ what are the sections of a turbojet engine. Answer: compressor,
combustor, and turbine.
