Materials and Construction Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent. 0.5 0.35 0.02 0.2 0.5 0.35 0.02 0.2 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following crystal structures characterises the ferritic stainless steel? Simple hexagonal Face centred cubic Body centred cubic None of these Simple hexagonal Face centred cubic Body centred cubic None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Steel pipes are normally manufactured by __________ process. Extrusion Cold working Forging Electroforming Extrusion Cold working Forging Electroforming ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Reduction in the grain size reduces the __________ of the material. Fatigue resistance Creep resistance Tensile strength All of these Fatigue resistance Creep resistance Tensile strength All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. Having poor toughness Used for making axle & shafts of aeroplanes, automobiles and locomotives Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor fatigue resistance Having poor toughness Used for making axle & shafts of aeroplanes, automobiles and locomotives Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor fatigue resistance ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Slow and progressive deformation of a material with time under constant stress is called Erosion Creep Resilience None of these Erosion Creep Resilience None of these ANSWER DOWNLOAD EXAMIANS APP
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