Engineering Materials The machinability of aluminium increases when _________ is added to aluminium. Lead and bismuth Copper Magnesium Silicon Lead and bismuth Copper Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness 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 cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The strength is the ability of a material to resist None of these Fracture due to high impact loads Externally applied forces with breakdown or yielding Deformation under stress None of these Fracture due to high impact loads Externally applied forces with breakdown or yielding Deformation under stress ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Silicon when added to copper improves Hardness Machinability Hardness and strength Strength and ductility Hardness Machinability Hardness and strength Strength and ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The portion of the blast furnace below its widest cross-section is called Bosh Stack Throat Hearth Bosh Stack Throat Hearth ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Free carbon in iron makes the metal Hard and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure Soft and gives a coarse grained crystalline structure Hard and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure Soft and gives a coarse grained crystalline structure ANSWER DOWNLOAD EXAMIANS APP
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