Podcast
Questions and Answers
What is a property of a TAPS combustion chamber?
What is a property of a TAPS combustion chamber?
- Combustion takes place at the stoichiometric ratio.
- Mixing of fuel and air takes place before atomization. (correct)
- Through holes in the casing cooling air is supplied.
- When atomizing the fuel all nozzles are used.
One of the prohibited areas in the fuel metering graph is labelled as 'Stall Area'. In this area
the fuel-air ratio increases too much. As a result, the ...
One of the prohibited areas in the fuel metering graph is labelled as 'Stall Area'. In this area the fuel-air ratio increases too much. As a result, the ...
- air expands too much in the turbine (correct)
- air ignites too early in the combustion chamber
- flame is extinguished
- TIT becomes too high
The principle of propulsion by aircraft gas turbines is the increase of the … of the air.
The principle of propulsion by aircraft gas turbines is the increase of the … of the air.
- density
- pressure
- temperature
- velocity (correct)
How many times does the piston move up during the thermodynamic cycle of a 4-stroke
engine?
How many times does the piston move up during the thermodynamic cycle of a 4-stroke engine?
Molecules of an ideal gas …
Molecules of an ideal gas …
In a petrol engine whose thermodynamics is described by the Otto-cycle, the ignition is:
In a petrol engine whose thermodynamics is described by the Otto-cycle, the ignition is:
Due to the divergence of a turbofan inlet, the (1) … of the air (2) …
Due to the divergence of a turbofan inlet, the (1) … of the air (2) …
I Enthalpy and total enthalpy have the same value in a gas flow with zero velocity
II Temperature and total temperature have the same value in a gas flow with zero velocity
I Enthalpy and total enthalpy have the same value in a gas flow with zero velocity II Temperature and total temperature have the same value in a gas flow with zero velocity
Applying the First Law of Thermodynamics to the combustion chamber means:
Applying the First Law of Thermodynamics to the combustion chamber means:
What can be determined in a p-V diagram from the area encircled by the Brayton-cycle?
What can be determined in a p-V diagram from the area encircled by the Brayton-cycle?
If we consider the losses in the combustion chamber, then the total temperature
immediately after the combustion chamber is … when we don’t consider losses.
If we consider the losses in the combustion chamber, then the total temperature immediately after the combustion chamber is … when we don’t consider losses.
(I) When cruise altitude increases the thrust decreases
(II) When cruise altitude increases the specific thrust increases
(I) When cruise altitude increases the thrust decreases (II) When cruise altitude increases the specific thrust increases
What percentage of the air flows through the core of a turbofan with a BPR of 4?
What percentage of the air flows through the core of a turbofan with a BPR of 4?
What type of mounting is shown in the picture?
What type of mounting is shown in the picture?
In the compressor the absolute velocity in the rotor (1) … and in the stator (2) …
In the compressor the absolute velocity in the rotor (1) … and in the stator (2) …
The picture shows a velocity triangle at which (1) … can occur. This is caused by a too (2) …
axial velocity.
The picture shows a velocity triangle at which (1) … can occur. This is caused by a too (2) … axial velocity.
The function of the VSVs is to prevent stall in the …
The function of the VSVs is to prevent stall in the …
Not every component of a gas turbine has as many stages. Rank the following components
to an (average) increasing number of stages!
Not every component of a gas turbine has as many stages. Rank the following components to an (average) increasing number of stages!
During which phase of flight is Active Clearance Control of interest?
During which phase of flight is Active Clearance Control of interest?
What is NOT a function of the air surplus that is fed to the combustion chamber?
What is NOT a function of the air surplus that is fed to the combustion chamber?
If the RPM increases, and the airflow increases with 10%, the fuel flow increases with …
If the RPM increases, and the airflow increases with 10%, the fuel flow increases with …
What component is part of FADEC?
What component is part of FADEC?
What is prevented by the use of a drain point?
What is prevented by the use of a drain point?
If the ambient temperature increases the (1) ... rotates. This (2) ... the fuel flow.
If the ambient temperature increases the (1) ... rotates. This (2) ... the fuel flow.
