Engineering Materials Addition of silicon to aluminium results in Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
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 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 alloying element which can replace tungsten in high speed steels is Vanadium Molybdenum Cobalt Nickel Vanadium Molybdenum Cobalt Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials For a steel containing 0.8% carbon There can be any number of critical points There is only one critical point There are two critical points There is no critical point There can be any number of critical points There is only one critical point There are two critical points There is no critical point ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Crystal structure of a material is, generally, examined by Naked eye X-ray techniques Metallurgical microscope Optical microscope Naked eye X-ray techniques Metallurgical microscope Optical microscope ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled In still air Slowly in the furnace Any one of these Suddenly in a suitable cooling medium In still air Slowly in the furnace Any one of these Suddenly in a suitable cooling medium ANSWER DOWNLOAD EXAMIANS APP
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