Engineering Materials Cobalt in steel Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti corrosion property Improves cutting ability and reduce hardenability Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti corrosion property Improves cutting ability and reduce hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as Precipitation Recrystallization Allotropic change Heat treatment Precipitation Recrystallization Allotropic change Heat treatment ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The temperature required for full annealing in hypereutectoid steel is 30° C to 50° C above upper critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C below upper critical temperature 30° C to 50° C above lower critical temperature 30° C to 50° C above upper critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C below upper critical temperature 30° C to 50° C above lower critical temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about annealing? Annealing is done to Soften material Relieve stresses Improve machining characteristic Harden steel slightly Soften material Relieve stresses Improve machining characteristic Harden steel slightly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel made from phosphate iron is Brittle Tough Ductile Hard Brittle Tough Ductile Hard ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bronze is an alloy of None of these Copper and zinc Copper, tin and zinc Copper and tin None of these Copper and zinc Copper, tin and zinc Copper and tin ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS