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1131 questions found

Module 8. Basic aerodynamics

A delta wing has

  • a lower stall angle than a straight wing.
  • a higher stall angle than a straight wing.
  • the same stall angle than a straight wing.
arifadli8 asking:

help....
i want to know about delta wing lift,drag and stall

Module 8. Basic aerodynamics

Mach number is

  • the ratio of the aircrafts TAS to the speed of sound at the same atmospheric conditions.
  • the ratio of the aircrafts IAS to the speed of sound at the same atmospheric conditions.
  • the ratio of the aircrafts TAS to the speed of sound at sea level.
arifadli8 asking:

what TAS mean???

Module 6. Materials & hardware

Intergrannular corrosion in structural aluminium alloy parts

  • are not likely to occur in parts fabricated from heat-treated sheet aluminium.
  • may be detected by the white, powdery deposit formed on the surface of the metal.
  • cannot always be detected by surface indications.
bhusan66 asking:

Intergrannular corrosion cannot be observed by visual inspection isn't it? Intergrannular corrosion are microscopic corrosion due to improper heating?

Module 6. Materials & hardware

Co-axial cables are used

  • as they are able to handle high current.
  • as the fields due to current flow in the inner and outer cancel each other out.
  • as they are protected from electromagnetic interference.
bhusan66 asking:

isn't current flow in the inner and outer canceling each other out in co-axial cables?

Module 6. Materials & hardware

Galvanic action caused by dissimilar metal contact may best be prevented by

  • applying a non-porous dielectric material between the surfaces.
  • special precautions are not required if they are properly bonded.
  • priming both the surfaces with a light coat of zinc chromate primer.
bhusan66 asking:

non-porous dielectric material between the surfaces will prevent dissimilar metal contant.. isn't it?

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