Engineering Materials In malleable iron, carbon is present in the form of Nodular aggregates of graphite Flakes Cementite Free carbon Nodular aggregates of graphite Flakes Cementite Free carbon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Points of arrest for iron correspond to Stages at which further heating does not increase temperature for some time Stages at which allotropic forms change Stages at which properties do not change with increase in temperature There is nothing like points of arrest Stages at which further heating does not increase temperature for some time Stages at which allotropic forms change Stages at which properties do not change with increase in temperature There is nothing like points of arrest ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statements are true for annealing of steels? Steels are heated to 500 to 700°C Internal stresses are relieved Cooling is done slowly and steadily All of these Steels are heated to 500 to 700°C Internal stresses are relieved Cooling is done slowly and steadily All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which reduces the formation of iron sulphide in steel is Chromium Vanadium Nickel Manganese Chromium Vanadium Nickel Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty gun metal contains 88% copper, 10% tin and rest zinc 63 to 67% nickel and 30% copper Alloy of tin, lead and cadmium Iron scrap and zinc 88% copper, 10% tin and rest zinc 63 to 67% nickel and 30% copper Alloy of tin, lead and cadmium Iron scrap and zinc ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The silicon steel is widely used for Motor car crankshafts Cutting tools Generators and transformers in the form of laminated cores Connecting rods Motor car crankshafts Cutting tools Generators and transformers in the form of laminated cores Connecting rods ANSWER DOWNLOAD EXAMIANS APP