Engineering Materials In high speed steels, manganese is used to tougher the metal and to increase its Melting point Hardness Critical temperature Yield point Melting point Hardness Critical temperature Yield point ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten when added to steel __________ the critical temperature. Lowers Raises Does not effect None of these Lowers Raises Does not effect None of these 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? Sulphur Phosphorus Manganese Silicon Sulphur Phosphorus Manganese Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chilled cast iron has A very high percentage of graphite Graphite as its basic constituent of composition A low percentage of graphite No graphite A very high percentage of graphite Graphite as its basic constituent of composition A low percentage of graphite No graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Carbon steel is Made by adding carbon in steel Refined from cast iron An alloy of iron and carbon with varying quantities of phosphorus and sulphur Extensively used for making cutting tools Made by adding carbon in steel Refined from cast iron An alloy of iron and carbon with varying quantities of phosphorus and sulphur Extensively used for making cutting tools ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When the steel is normalized, its Ultimate tensile strength increases Yield point increases Ductility decreases All of these Ultimate tensile strength increases Yield point increases Ductility decreases All of these ANSWER DOWNLOAD EXAMIANS APP
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