Engineering Materials Which of the following property is desirable for materials used in tools and machines? Plasticity Malleability Elasticity Ductility Plasticity Malleability Elasticity Ductility 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
Engineering Materials Dow metal contains 90% magnesium and 9% aluminium with some copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg 90% aluminium and 90% copper 90% magnesium and 9% aluminium with some copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg 90% aluminium and 90% copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A small percentage of boron is added to steel in order to Reduce machinability Increase wear resistance Increase endurance strength Increase hardenability Reduce machinability Increase wear resistance Increase endurance strength Increase hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cemented carbide tools are not found to be suitable for cutting Aluminium Brass Steel Cast iron Aluminium Brass Steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. None of these Free graphite Cementite Both A and B None of these Free graphite Cementite Both A and B ANSWER DOWNLOAD EXAMIANS APP
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