Engineering Materials Which of the following statement is true about brittle fracture? Brittle fracture is always preceded by noise High temperature and low strain rates favour brittle fracture Cup and cone formation is characteristic for brittle materials Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture Brittle fracture is always preceded by noise High temperature and low strain rates favour brittle fracture Cup and cone formation is characteristic for brittle materials Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Weld decay is the phenomenon found with Nonferrous materials Mild steel Stainless steel Cast iron Nonferrous materials Mild steel Stainless steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hematite iron ore contains iron about 0.7 0.55 0.3 0.45 0.7 0.55 0.3 0.45 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in high speed steel provides Wear resistance Toughness Sharp cutting edge Hot hardness Wear resistance Toughness Sharp cutting edge Hot hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is known as allotropic or polymorphic if it Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Responds to heat treatment Has a fixed structure under all conditions Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Responds to heat treatment Has a fixed structure under all conditions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In process annealing, the hypo eutectoid steel is Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated below or closes to the lower critical temperature and then cooled slowly ANSWER DOWNLOAD EXAMIANS APP
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