Engineering Materials Recrystallization temperature is one At which crystals grow bigger in size At which change of allotropic form takes place At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which crystals first start forming from molten metal when it is cooled At which crystals grow bigger in size At which change of allotropic form takes place At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which crystals first start forming from molten metal when it is cooled ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following pipes is least corrosion resistant? Wrought iron Cast iron Mild steel Brass Wrought iron Cast iron Mild steel Brass ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Decreases as the carbon content in steel increases Increases as the carbon content in steel increases Depends upon the rate of heating Is same for all steels Decreases as the carbon content in steel increases Increases as the carbon content in steel increases Depends upon the rate of heating Is same for all steels ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In which of the following cases, consideration of creep is important Cycle chains Gas turbine blades Cast iron pipes Flywheel of steam engine Cycle chains Gas turbine blades Cast iron pipes Flywheel of steam engine ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium when added to steel _________ the tensile strength. Does not effect Decreases Increases None of these Does not effect Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Forms very hard carbides and thus increases wear resistance Promotes decarburisation Promotes retention of austenite Provides high hot hardness Forms very hard carbides and thus increases wear resistance Promotes decarburisation Promotes retention of austenite Provides high hot hardness ANSWER DOWNLOAD EXAMIANS APP
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