I enterd my company NDT exam and I faced question I couldnt give answer for it regarding dye pentrant for aviation ? I get 71% fail so please help are my answer correct 1- Are the black light and UV light the same or diffrent ? my answer was diffrent 2-titanuim inspetion use which type of dye?my answer was florocent 3- which matarial pest inspected with dye (para magmetic-hard steel -alcladed aluminum) my answer para magnetic
Re: NDT exam question UV light means electromagnetic radiation from 200nm to 400nm wavelenght (under 200nm you have vacum UV). Black light is comonly used to refer to the UVA (UV band A light), this is from 315nm to 400nm, wich is the used for the fluorescent tests (with the peak in 365nm, that is the wavelenght that allows the fluorescence fenomenum)
----------- Start Original Message ----------- : I enterd my company NDT exam and I faced question I couldnt give answer for it regarding dye pentrant for aviation ? I get 71% fail so please help : are my answer correct : 1- Are the black light and UV light the same or diffrent ? my answer was diffrent : 2-titanuim inspetion use which type of dye?my answer was florocent : 3- which matarial pest inspected with dye (para magmetic-hard steel -alcladed aluminum) my answer para magnetic ------------ End Original Message ------------
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