Engineering Materials The lower critical point for all steels is 700°C 913°C 600°C 723°C 700°C 913°C 600°C 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statement is true about 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 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Nodular iron has Low melting point High machinability All of these High tensile strength Low melting point High machinability All of these High tensile strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pick up wrong statement about wrought iron It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It melts at 1535°C It contains carbon of the order of 0 to 0.25% It is very soft and ductile It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It melts at 1535°C It contains carbon of the order of 0 to 0.25% It is very soft and ductile ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cyaniding is the process of Obtaining cyanide salts Reacting steel surface with cyanide salts Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness Dipping steel in cyanide bath Obtaining cyanide salts Reacting steel surface with cyanide salts Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness Dipping steel in cyanide bath ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of steel is improved by adding Nickel Sulphur, lead and phosphorus Nickel and chromium Chromium Nickel Sulphur, lead and phosphorus Nickel and chromium Chromium ANSWER DOWNLOAD EXAMIANS APP
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