Materials and Construction Zinc is highly __________ at room temperature. Resistant to atmospheric corrosion Ductile Brittle Malleable Resistant to atmospheric corrosion Ductile Brittle Malleable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ iron is produced, when molten pig iron is allowed to cool gradually. Grey cast White cast None of these Wrought Grey cast White cast None of these Wrought ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as Anodising None of these Parkerising Sheradising Anodising None of these Parkerising Sheradising ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aluminium as a material of construction suffers from the disadvantage of Rather low tensile strength Very low strength to weight ratio Scarce availability Very high cost Rather low tensile strength Very low strength to weight ratio Scarce availability Very high cost 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 Are used for leaf and coiled springs Do not require heat treatment for any of its applications Do not have good resilience properties Is tempered at 850°C Are used for leaf and coiled springs Do not require heat treatment for any of its applications Do not have good resilience properties ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following crystal structures characterises the austenitic stainless steel? None of these Face centred cubic Simple hexagonal Body centred cubic None of these Face centred cubic Simple hexagonal Body centred cubic ANSWER DOWNLOAD EXAMIANS APP
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