Materials and Construction The main purpose of galvanising iron sheets is to Prevent the action of oxygen Prevent the action of water Harden the surface Increase its glossiness and lustre Prevent the action of oxygen Prevent the action of water Harden the surface Increase its glossiness and lustre ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Duralumin is an alloy of Aluminium and nickel None of these Aluminium, copper and manganese Aluminium, nickel and silicon Aluminium and nickel None of these Aluminium, copper and manganese Aluminium, nickel and silicon ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following mechanical properties of a material is most structure insensitive? Modulus of elasticity (young Tensile strength Percentage reduction of area Toughness Modulus of elasticity (young Tensile strength Percentage reduction of area Toughness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Are used for leaf and coiled springs Is tempered at 850°C Do not have good resilience properties Do not require heat treatment for any of its applications Are used for leaf and coiled springs Is tempered at 850°C Do not have good resilience properties Do not require heat treatment for any of its applications ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium Tin, nickel, iron and chromium None of these And graphite And copper Tin, nickel, iron and chromium None of these And graphite And copper ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hammers and railway rails are normally made of Mild steel High carbon steel Dead mild steel Medium carbon steel Mild steel High carbon steel Dead mild steel Medium carbon steel ANSWER DOWNLOAD EXAMIANS APP
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