Engineering Materials Combined carbon in iron makes the metal Hard and gives a fine grained crystalline structure Soft and gives 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 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 The alloying element which reduces the formation of iron sulphide in steel is Chromium Vanadium Nickel Manganese Chromium Vanadium Nickel Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is 0.6 to 0.8% 0.35 to 0.45% 0.0004 0.4 to 0.6% 0.6 to 0.8% 0.35 to 0.45% 0.0004 0.4 to 0.6% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of lead and bismuth to aluminium results in Improving machinability One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance Improving machinability One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has nearly zero coefficient of expansion? High speed steel Heat resisting steel Stainless steel Invar High speed steel Heat resisting steel Stainless steel Invar ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A coarse grained steel Is less tough and has a less tendency to distort during heat treatment Is less tough and has a greater tendency to distort during heat treatment Is more ductile and has a greater tendency to distort during heat treatment Is more ductile and has a less tendency to distort during heat treatment Is less tough and has a less tendency to distort during heat treatment Is less tough and has a greater tendency to distort during heat treatment Is more ductile and has a greater tendency to distort during heat treatment Is more ductile and has a less tendency to distort during heat treatment ANSWER DOWNLOAD EXAMIANS APP
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