Engineering Materials Nickel when added to copper improves Strength and ductility Hardness Machinability Hardness and strength Strength and ductility Hardness Machinability Hardness and strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials 1841 high speed steel contains Vanadium 1%, chromium 4% and tungsten 18% None of these Vanadium 18%, chromium 1% and tungsten 4% Vanadium 4%, chromium 18% and tungsten 1% Vanadium 1%, chromium 4% and tungsten 18% None of these Vanadium 18%, chromium 1% and tungsten 4% Vanadium 4%, chromium 18% and tungsten 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Crystal structure of a material is, generally, examined by Optical microscope Metallurgical microscope Naked eye X-ray techniques Optical microscope Metallurgical microscope Naked eye X-ray techniques ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Provides high hot hardness Promotes decarburisation Forms very hard carbides and thus increases wear resistance Promotes retention of austenite Provides high hot hardness Promotes decarburisation Forms very hard carbides and thus increases wear resistance Promotes retention of austenite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Corrosion resistance of steel is increased by adding Aluminium and zinc Nickel and molybdenum Chromium and nickel Tungsten and sulphur Aluminium and zinc Nickel and molybdenum Chromium and nickel Tungsten and sulphur 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
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