Engineering Materials The percentage of carbon in grey iron castings usually varies between 0.012 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% 5 to 7% 2.5 to 4.5% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following pipes is least corrosion resistant? Brass Wrought iron Cast iron Mild steel Brass Wrought iron Cast iron Mild steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of Mainly ferrite Pearlite and cementite Ferrite and pearlite Mainly pearlite Mainly ferrite Pearlite and cementite Ferrite and pearlite Mainly pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness is the property of a material due to which it Can be rolled or hammered into thin sheets Can be drawn into wires Breaks with little permanent distortion Can cut another metal Can be rolled or hammered into thin sheets Can be drawn into wires Breaks with little permanent distortion Can cut another metal ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about annealing? Annealing is done to Soften material Relieve stresses Improve machining characteristic Harden steel slightly Soften material Relieve stresses Improve machining characteristic Harden steel slightly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of lead and bismuth to aluminium results in Improving machinability Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improvement of casting characteristics Improving machinability Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improvement of casting characteristics ANSWER DOWNLOAD EXAMIANS APP
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