Engineering Materials The purpose of heat treatment is to Modify the structure of the material Relieve the stresses set up in the material after hot or cold working Change grain size Any one of these Modify the structure of the material Relieve the stresses set up in the material after hot or cold working Change grain size Any one of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Shock resisting steels should have Low wear resistance Toughness Low tensile strength Low hardness Low wear resistance Toughness Low tensile strength Low hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following has a fine gold colour and is used for imitation jewellery? Silicon bronze Gun metal Babbitt metal Aluminium bronze Silicon bronze Gun metal Babbitt metal Aluminium bronze ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has nearly zero coefficient of expansion? Invar Heat resisting steel Stainless steel High speed steel Invar Heat resisting steel Stainless steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty gun metal contains 63 to 67% nickel and 30% copper 88% copper, 10% tin and rest zinc Iron scrap and zinc Alloy of tin, lead and cadmium 63 to 67% nickel and 30% copper 88% copper, 10% tin and rest zinc Iron scrap and zinc Alloy of tin, lead and cadmium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Free carbon in iron makes the metal 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 Hard and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure ANSWER DOWNLOAD EXAMIANS APP
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