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In which of the following materials, ultrasonic testing cannot be used?(a) Plastics(b) Ceramics(c) Non-ferrous objects(d) Ferrous objectThis question was posed to me during an interview.The origin of the question is Ultrasonic Inspection in chapter Non Destructive Techniques of Casting-Forming-Welding II

Answer»

Right OPTION is (d) Ferrous object

The explanation: Ultrasonic testing is a method for detecting FLAWS in the article. It can be USED on various materials like plastics, CERAMICS and non-ferrous objects.



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