Q&A Forum
1118 questions found
Screech liners in the afterburning jet pipe
- prevent unstable combustion.
- prevent cyclic vibrations of large amplitude.
- acts as noise suppressors.
i think the answer is wrong my textbook says that they act as noise suppressors.I quote "These are commonly called as Noise suppression liners or Noise
attenuation mattresses. When installed in the exhaust area these
are also known as Screech liners"
What happens to air flowing at the speed of sound when it enters a converging duct?
- Velocity increases, pressure and density decreases.
- Velocity, pressure and density increase.
- Velocity decreases, pressure and density increase.
Why?
If you have an aircraft that is more laterally stable then directionally stable it will tend to
- bank.
- slip.
- skid.
Why?
What type of intake is one that decreases gradually in area and then increases?
- Convergent.
- Convergent / Divergent.
- Divergent.
isnt this divergent only?Why can it be also convergent?I think convergent is the opposite of what it says.
Water methanol for cooling is injected into the
- compressor inlet or outlet.
- engine hot zone.
- combustion chamber.
why isnt methanol injected into combustion to help with the freezing of water?