Engineering Materials Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities? Sulphur Phosphorus Manganese Silicon Sulphur Phosphorus Manganese Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Recrystallization temperature can be lowered by Working at lower temperature Purification of metal Grain refinement All of these Working at lower temperature Purification of metal Grain refinement All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In which of the following cases, consideration of creep is important Cycle chains Gas turbine blades Flywheel of steam engine Cast iron pipes Cycle chains Gas turbine blades Flywheel of steam engine Cast iron pipes ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of hydrogen in steel causes Embrittlement Reduced neutron absorption cross-section Corrosion resistance Improved Weldability Embrittlement Reduced neutron absorption cross-section Corrosion resistance Improved Weldability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cobalt in steel Improves wear resistance, cutting ability and toughness Improves cutting ability and reduce hardenability Gives ductility, toughness, tensile strength and anti corrosion property Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduce hardenability Gives ductility, toughness, tensile strength and anti corrosion property Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Large forgings, crank shafts, axles normally contain carbon up to 0.45 to 0.55% 0.20 to 0.45% 0.05 to 0.20% 0.55 to 1.0% 0.45 to 0.55% 0.20 to 0.45% 0.05 to 0.20% 0.55 to 1.0% ANSWER DOWNLOAD EXAMIANS APP
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