Engineering Materials The machinability of aluminium increases when _________ is added to aluminium. Silicon Copper Magnesium Lead and bismuth Silicon Copper Magnesium Lead and bismuth ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Balls for ball bearings are made of Stainless steel Mild steel Carbon-chrome steel Cast iron Stainless steel Mild steel Carbon-chrome steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is known as allotropic or polymorphic if it Has a fixed structure under all conditions Exists in several crystal forms at different temperatures Has its atoms distributed in a random pattern Responds to heat treatment Has a fixed structure under all conditions Exists in several crystal forms at different temperatures Has its atoms distributed in a random pattern Responds to heat treatment ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The purpose of heat treatment is to Any one of these Relieve the stresses set up in the material after hot or cold working Change grain size Modify the structure of the material Any one of these Relieve the stresses set up in the material after hot or cold working Change grain size Modify the structure of the material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In mottled cast iron, carbon is available in Partly in free and partly in combined state Nodular form Combined form Free form Partly in free and partly in combined state Nodular form Combined form Free form ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Monel metal contains 88% copper and 10% tin and rest zinc Malleable iron and zinc Alloy of tin, lead and cadmium 63 to 67% nickel and 30% copper 88% copper and 10% tin and rest zinc Malleable iron and zinc Alloy of tin, lead and cadmium 63 to 67% nickel and 30% copper ANSWER DOWNLOAD EXAMIANS APP
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