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

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

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
The brown smoke during the operation of a Bessemer converter indicates that the

Air is burning out silicon and manganese
The brown smoke does not occur during the operation of a Bessemer converter
Silicon and manganese has burnt and carbon has started oxidizing
The converter must be titled to remove the contents of the converter

ANSWER DOWNLOAD EXAMIANS APP