Question 1

What is the pressure ratio in an aircraft gas turbine engine?

Accepted Answer

Option A: The ratio of the discharge pressure to the inlet pressure.

Answer

Option B: The ratio of the compressor pressure to the turbine pressure.

Answer

Option C: The ratio of the exhaust pressure to the inlet pressure.

Answer

Option D: The ratio of the turbine pressure to the compressor pressure.

Question 2

What is the purpose of the turbine in an aircraft gas turbine engine?

Accepted Answer

Option B: To extract energy from the expanding exhaust gases.

Answer

Option C: To mix fuel with compressed air for combustion.

Answer

Option A: To compress incoming air before combustion.

Answer

Option D: To convert heat energy into mechanical energy.

Question 3

What is the function of the compressor in an aircraft gas turbine engine?

Accepted Answer

Option C: To compress incoming air before combustion.

Answer

Option D: To convert heat energy into mechanical energy.

Answer

Option A: To extract energy from the expanding exhaust gases.

Answer

Option B: To mix fuel with compressed air for combustion.

Question 4

What is the purpose of the afterburner in an aircraft gas turbine engine?

Accepted Answer

Option D: To increase thrust by re-igniting and accelerating the already combusted gases.

Answer

Option C: To compress incoming air before combustion.

Answer

Option B: To mix fuel with compressed air for combustion.

Answer

Option A: To extract energy from the expanding exhaust gases.

Question 5

What is the purpose of the nozzle in an aircraft gas turbine engine?

Accepted Answer

Option C: To accelerate the high-velocity exhaust gases and convert thermal energy into kinetic energy.

Answer

Option B: To mix fuel with compressed air for combustion.

Answer

Option D: To release excess pressure from the engine.

Answer

Option A: To compress incoming air before combustion.

Question 6

Which component of an aircraft gas turbine engine is responsible for generating the majority of the thrust?

Accepted Answer

Option C: Nozzle

Answer

Option B: Afterburner

Answer

Option D: Turbine

Answer

Option A: Compressor

Question 7

What is the purpose of a turbine in an aircraft turbo-prop gas turbine engine?

Accepted Answer

To extract energy from the high-velocity exhaust gases to rotate the compressor and drive the aircraft propeller.

Answer

To generate electrical power for the aircraft systems.

Answer

To reduce the noise produced by the engine.

Answer

To cool down the exhaust gases before they exit the engine.

Question 8

Which component in an aircraft turbo-prop gas turbine engine is responsible for compressing incoming air?

Accepted Answer

Compressor

Answer

Combustor

Answer

Turbine

Answer

Exhaust nozzle

Question 9

What is the purpose of the propeller in an aircraft turbo-prop gas turbine engine?

Accepted Answer

To convert the rotational power generated by the engine into forward thrust.

Answer

To compress incoming air before it enters the combustion chamber.

Answer

To cool down the exhaust gases before they exit the engine.

Answer

To extract energy from the high-velocity exhaust gases to rotate the compressor.

Question 10

What is the purpose of the intercooler in an aircraft turbo-prop gas turbine engine?

Accepted Answer

To cool down the compressed air before it enters the combustion chamber.

Answer

To convert the rotational power generated by the engine into forward thrust.

Answer

To ignite the fuel and produce high-pressure, high-temperature gases.

Answer

To extract energy from the high-velocity exhaust gases to rotate the compressor.

Question 11

What is the purpose of the bypass ratio in an aircraft turbo-prop gas turbine engine?

Accepted Answer

To determine the amount of air that bypasses the engine core.

Answer

To convert the kinetic energy of the exhaust gases into useful work.

Answer

To compress incoming air before it enters the combustion chamber.

Answer

To regulate the fuel flow rate in the engine.

Question 12

What is the purpose of the exhaust nozzle in an aircraft turbo-prop gas turbine engine?

Accepted Answer

To accelerate and direct the exhaust gases to generate thrust.

Answer

To cool down the exhaust gases before they exit the engine.

Answer

To compress incoming air before it enters the combustion chamber.

Answer

To extract energy from the high-velocity exhaust gases to rotate the compressor.

Question 13

What is the role of the fuel control system in an aircraft turbo-prop gas turbine engine?

Accepted Answer

To regulate and control the flow of fuel into the combustion chamber.

Answer

To cool down the exhaust gases before they exit the engine.

Answer

To extract energy from the high-velocity exhaust gases to rotate the compressor.

Answer

To compress incoming air before it enters the combustion chamber.

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