Materials and Construction Which of the following crystal structures characterises the austenitic stainless steel? Face centred cubic Simple hexagonal None of these Body centred cubic Face centred cubic Simple hexagonal None of these Body centred cubic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron Suppresses the decomposition of Fe₃ C Increases the formation of graphite Increases the contraction of the metal Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the formation of graphite Increases the contraction of the metal Reduces its fluidity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following mechanical properties of a material is most structure insensitive? Percentage reduction of area Tensile strength Modulus of elasticity (young Toughness Percentage reduction of area Tensile strength Modulus of elasticity (young Toughness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Is tempered at 850°C Do not require heat treatment for any of its applications Do not have good resilience properties Are used for leaf and coiled springs Is tempered at 850°C Do not require heat treatment for any of its applications Do not have good resilience properties Are used for leaf and coiled springs ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Locomotive boiler tubes are made of __________ alloys. Aluminium Magnesium Arsenic copper Nickel Aluminium Magnesium Arsenic copper Nickel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The formation of oxide film on a metal due to atmospheric exposure reduces its All of these Stiffness Creep limit Toughness All of these Stiffness Creep limit Toughness ANSWER DOWNLOAD EXAMIANS APP
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