Engineering Materials Free carbon in iron makes the metal Hard and gives a fine grained crystalline structure Soft and gives a coarse grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure Hard and gives a fine grained crystalline structure Soft and gives a coarse grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has nearly zero coefficient of expansion? High speed steel Heat resisting steel Invar Stainless steel High speed steel Heat resisting steel Invar Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Free cutting steels Is used where rapid machining is the prime requirement Contain carbon in free from Require minimum cutting force Can be cut freely Is used where rapid machining is the prime requirement Contain carbon in free from Require minimum cutting force Can be cut freely ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which can replace tungsten in high speed steels is Nickel Vanadium Molybdenum Cobalt Nickel Vanadium Molybdenum Cobalt ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The material widely used for making pendulums of clocks is High speed steel Heat resisting steel Stainless steel Nickel steel High speed steel Heat resisting steel Stainless steel Nickel steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Drop forging dies contain carbon of the order of 0.25 to 0.5% 0.1 to 0.2% 0.7 to 0.9% 0.6 to 0.7% 0.25 to 0.5% 0.1 to 0.2% 0.7 to 0.9% 0.6 to 0.7% ANSWER DOWNLOAD EXAMIANS APP
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