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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.
help....
i want to know about delta wing lift,drag and stall
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.
what TAS mean???
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.
Intergrannular corrosion cannot be observed by visual inspection isn't it? Intergrannular corrosion are microscopic corrosion due to improper heating?
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.
isn't current flow in the inner and outer canceling each other out in co-axial cables?
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.
non-porous dielectric material between the surfaces will prevent dissimilar metal contant.. isn't it?