Engineering Materials When medium carbon steel is heated to coarsening temperature The grain size increases very rapidly The average grain size is a minimum The grain size first increases and then decreases very rapidly There is no change in grain size The grain size increases very rapidly The average grain size is a minimum The grain size first increases and then decreases very rapidly There is no change in grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 1000 to 1100 VPN 1500 VPN 600 VPN 250 VPN 1000 to 1100 VPN 1500 VPN 600 VPN 250 VPN ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The strength is the ability of a material to resist Fracture due to high impact loads Externally applied forces with breakdown or yielding None of these Deformation under stress Fracture due to high impact loads Externally applied forces with breakdown or yielding None of these Deformation under stress ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Decreases as the carbon content in steel increases Depends upon the rate of heating Increases as the carbon content in steel increases Is same for all steels Decreases as the carbon content in steel increases Depends upon the rate of heating Increases as the carbon content in steel increases Is same for all steels ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In the lower part of the blast furnace (zone of fusion), the temperature is 1500°C to 1700°C 800°C to 1000°C 1200°C to 1300°C 400° to 700°C 1500°C to 1700°C 800°C to 1000°C 1200°C to 1300°C 400° to 700°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In which of the following cases, consideration of creep is important Gas turbine blades Cast iron pipes Cycle chains Flywheel of steam engine Gas turbine blades Cast iron pipes Cycle chains Flywheel of steam engine ANSWER DOWNLOAD EXAMIANS APP
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