Basic Gas Turbine Theory

Question 1 of 22

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What are the basic sections of a turbine engine?

Select one or more of the following:

  • The basic sections of a turbine engine are the intake, the compressor, the combustion chamber, the turbine and the exhaust section.

  • The basic sections of a turbine engine are the intake, the compressor, the combustion chamber, the exhaust and the exhaust section.

  • The basic sections of a turbine engine are the intake, the compressor, the combustion chamber, the turbo and the exhaust section.

  • The basic sections of a turbine engine are the intake, the compressor, the combustion chamber, the fan blades and the exhaust section.

Question 2 of 22

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What is the basic description of the functioning of a turbine engine?

Select one or more of the following:

  • Air is drawn (or rammed), via the intake, into a multi-stage compressor, fuel is added and ignited in the combustor, and the air is expanded through the turbine stages before being expelled out the back of the engine

  • Air is drawn (or rammed), via the intake, into a multi-stage compressor, fuel is added and ignited in the combustor, and the air is compressed through the turbine stages before being expelled out the back of the engine

  • Air is drawn (or rammed), via the intake, into a one-stage compressor, fuel is added and ignited in the combustor, and the air is compressed through the turbine stages before being expelled out the back of the engine

  • Air is drawn (or rammed), via the intake, into a one-stage compressor, fuel is added and ignited in the combustor, and the air is expanded through the turbine stages before being expelled out the back of the engine

Question 3 of 22

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How is Newtons second law mathematically expressed?

Select one or more of the following:

  • F = Ma

  • E = Mc2

  • M = F/a

  • A = F/m

Question 4 of 22

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What is newtons third law?

Select one or more of the following:

  • For every action there is an equal and opposite reaction

  • Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

  • The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.

Question 5 of 22

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What is Charles' law?

Select one or more of the following:

  • Charles law states that at a constant pressure, the volume of a given mass of gas is directly proportional to its absolute temperature

  • Charles law states that at a constant density, the volume of a given mass of gas is directly proportional to its absolute temperature

  • Charles law states that at a constant pressure, the volume of a given mass of gas is directly proportional to its absolute pressure

  • Charles law states that at a constant pressure, the volume of a given mass of gas is directly proportional to its absolute density

Question 6 of 22

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What is Boyles law?

Select one or more of the following:

  • Boyles law states that at a constant temperature, the pressure and the volume of a gas are inversely proportional.

  • Boyles law states that at a constant temperature, the pressure and the volume of a gas are directly proportional.

  • Boyles law states that at a constant temperature, the pressure and the volume of a liquid are directly proportional.

  • Boyles law states that at a constant temperature, the pressure and the volume of a liquid are inversely proportional.

Question 7 of 22

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How does the temperature, density, pressure and velocity of a gas flow vary through a convergent duct at subsonic speed?

Select one or more of the following:

  • Temperature, density and pressure reduce and velocity increases.

  • Temperature, density and pressure increase and velocity reduces.

  • Temperature, density and pressure reduce and velocity stays the same.

  • Temperature, density and pressure reduce and velocity reduces.

Question 8 of 22

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How does the temperature, density, pressure and velocity of a gas flow vary through a divergent duct at subsonic speed?

Select one or more of the following:

  • Temperature, density and pressure increase and velocity reduces

  • Temperature, density and pressure reduce and velocity reduces

  • Temperature, density and pressure increase and velocity increase

  • Temperature, density and pressure reduce and velocity increases

Question 9 of 22

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How does the temperature, density, pressure and velocity of a gas flow vary through a convergent duct at super sonic speed?

Select one or more of the following:

  • Temperature, density and pressure increase and velocity reduces

  • Temperature, density and pressure increase and velocity increases

  • Temperature, density and pressure reduce and velocity reduces

  • Temperature, density and pressure reduce and velocity increases

Question 10 of 22

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How does the temperature, density, pressure and velocity of a gas flow vary through a divergent duct at super sonic speed?

Select one or more of the following:

  • Temperature, density and pressure reduce and velocity increases

  • Temperature, density and pressure reduce and velocity reduces

  • Temperature, density and pressure increases and velocity increases

  • Temperature, density and pressure increases and velocity reduces

Question 11 of 22

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Where does the subsonic flow decrease in velocity and increase in pressure

Select one or more of the following:

  • Through a divergent duct

  • Through a convergent duct

Question 12 of 22

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Where does subsonic flow increase in velocity and decrease in pressure?

Select one or more of the following:

  • Through a convergent duct

  • Through a divergent duct

Question 13 of 22

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Where does super sonic flow increase in velocity and decrease in pressure?

Select one or more of the following:

  • Through a convergent duct

  • Through a divergent duct

Question 14 of 22

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Where does super sonic flow decrease in velocity and increase in pressure?

Select one or more of the following:

  • Convergent duct

  • Divergent duct

Question 15 of 22

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What property is exhibited by accelerating gas flow?

Select one or more of the following:

  • That the total energy is constant.

  • That the total energy is increases.

  • That the total energy is decreases.

Question 16 of 22

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Where is a turbofan is the pressure the highest?

Select one or more of the following:

  • In the diffuser.

  • Exiting the exhaust

  • In the compression chamber

  • In the combustion chamber

Question 17 of 22

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Where in a turbofan engine is the gas velocity highest?

Select one or more of the following:

  • In the intake

  • Exiting the exhaust nozzle

  • In the combustion chamber

  • In the compression axials

Question 18 of 22

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Where in a turbine engine is the gas temperature the highest?

Select one or more of the following:

  • At the exhaust nozzle

  • Just before the exhaust nozzle

  • At the flame in the combustion chamber

  • Just after the air reaches it highest pressure

Question 19 of 22

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How does gas pressure vary as it passes through the combustion chamber?

Select one or more of the following:

  • It remains nearly constant, reducing very slightly due to construction ineffecies

  • It increases

  • It decreases

  • It increases then decreases as it passes through the combustion chamber

Question 20 of 22

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How does gas temperature and velocity vary as it passes through the combustion chamber?

Select one or more of the following:

  • Temperature and velocity both increase.

  • Temperature and velocity both decrease.

  • Temperature increases and velocity decreases.

  • Temperature decreases and velocity increases

Question 21 of 22

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How does gas pressure, temperature and velocity vary as it passes through the turbine section?

Select one or more of the following:

  • Pressure and temperature progressively reduce, and velocity increases through the nozzle guide vanes and stators and reduces through the turbine blades.

  • Pressure and temperature progressively increase, and velocity increases through the nozzle guide vanes and stators and reduces through the turbine blades.

  • Pressure and temperature progressively reduce, and velocity decreases through the nozzle guide vanes and stators and reduces through the turbine blades.

  • Pressure and temperature progressively increase, and velocity decreases through the nozzle guide vanes and stators and reduces through the turbine blades.

Question 22 of 22

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Why is the Brayton Cycle in a turbine engine referred to as an open or continuous cycle?

Select one or more of the following:

  • Because intake, compression combustion and exhaust are all occurring at the same time

  • Because the engine is continuously running itself

  • Because intake, compression combustion and exhaust are all occurring openly

  • Because fuel is being continuously burnt

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Basic Gas Turbine Theory

Andrew Lee
Quiz by , created about 1 year ago

Basic Gas Turbine Theory

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Andrew Lee
Created by Andrew Lee about 1 year ago
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