Engineering Materials The property of a material which enables it to retain the deformation permanently, is called Brittleness Malleability Ductility Plasticity Brittleness Malleability Ductility Plasticity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal? Silicon Phosphorus Manganese Sulphur Silicon Phosphorus Manganese Sulphur ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The silicon steel is widely used for Connecting rods Motor car crankshafts Generators and transformers in the form of laminated cores Cutting tools Connecting rods Motor car crankshafts Generators and transformers in the form of laminated cores Cutting tools ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties 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 Recrystallization Precipitation Allotropic change Heat treatment Recrystallization Precipitation Allotropic change Heat treatment ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The elastic stress strain behavior of rubber is No fixed relationship Linear Nonlinear Plastic No fixed relationship Linear Nonlinear Plastic ANSWER DOWNLOAD EXAMIANS APP