Engineering Materials The machinability of aluminium increases when _________ is added to aluminium. Magnesium Lead and bismuth Copper Silicon Magnesium Lead and bismuth Copper Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The defect which takes place due to imperfect packing of atoms during crystallization is known as Surface defect Line defect None of these Point defect Surface defect Line defect None of these Point defect ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The compressive strength of cast iron is __________that of its tensile strength. Equal to More than None of these Less than Equal to More than None of these Less than ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about annealing? Annealing is done to Soften material Harden steel slightly Relieve stresses Improve machining characteristic Soften material Harden steel slightly Relieve stresses Improve machining characteristic ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In the lower part of the blast furnace (zone of fusion), the temperature is 1500°C to 1700°C 400° to 700°C 1200°C to 1300°C 800°C to 1000°C 1500°C to 1700°C 400° to 700°C 1200°C to 1300°C 800°C to 1000°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is known as allotropic or polymorphic if it Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Has a fixed structure under all conditions Responds to heat treatment Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Has a fixed structure under all conditions Responds to heat treatment ANSWER DOWNLOAD EXAMIANS APP
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