Engineering Materials
White metal contains

63 to 67% nickel and 30% copper
Silver and chromium
88% copper and 10% tin and rest zinc
Alloy of tin, lead and cadmium

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Engineering Materials
Which of the following statement is true about brittle fracture?

High temperature and low strain rates favour brittle fracture
Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture
Cup and cone formation is characteristic for brittle materials
Brittle fracture is always preceded by noise

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