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Which of the following properties of a material is assessed by the rebound test of hardness?(a) Toughness(b) Ductility(c) Malleability(d) ResilienceThis question was addressed to me in exam.My doubt stems from Testing of Mechanical Properties topic in division Inspection Testing in Foundries of Casting-Forming-Welding I

Answer»

Correct choice is (d) Resilience

To explain I would say: The rebound test of hardness has generally employed some TECHNIQUES to assess the resilience of MATERIAL by measuring changes in potential ENERGY of the material. For EXAMPLE, testing employs a hammer that is dropped onto the SURFACE of the material being tested; same is also used for polymers testing.



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