Engineering Materials The usual composition of a soldering alloy is Tin and copper Tin and lead Tin, lead and silver Tin, lead and small percentage of antimony Tin and copper Tin and lead Tin, lead and silver Tin, lead and small percentage of antimony ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials 1841 high speed steel contains None of these Vanadium 18%, chromium 1% and tungsten 4% Vanadium 1%, chromium 4% and tungsten 18% Vanadium 4%, chromium 18% and tungsten 1% None of these Vanadium 18%, chromium 1% and tungsten 4% Vanadium 1%, chromium 4% and tungsten 18% Vanadium 4%, chromium 18% and tungsten 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials An eutectoid steel consists of Wholly pearlite Pearlite and cementite Wholly austenite Pearlite and ferrite Wholly pearlite Pearlite and cementite Wholly austenite Pearlite and ferrite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Smelting is the process of All of these Reducing the ore with carbon in the presence of a flux Removing the impurities like clay, sand etc. from the iron ore by washing with water Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns All of these Reducing the ore with carbon in the presence of a flux Removing the impurities like clay, sand etc. from the iron ore by washing with water Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ability of a material to resist softening at high temperature is known as Fatigue Hot tempering Hot hardness Creep Fatigue Hot tempering Hot hardness Creep ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Promotes retention of austenite Promotes decarburisation Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes retention of austenite Promotes decarburisation Forms very hard carbides and thus increases wear resistance Provides high hot hardness ANSWER DOWNLOAD EXAMIANS APP
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