Engineering Materials The percentage of carbon in grey iron castings usually varies between 5 to 7% 0.5 to 1% 2.5 to 4.5% 0.012 5 to 7% 0.5 to 1% 2.5 to 4.5% 0.012 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is said to be allotropic, if it has Fixed structure at all temperatures Different crystal structures at different temperatures Any one of the above Atoms distributed in random pattern Fixed structure at all temperatures Different crystal structures at different temperatures Any one of the above Atoms distributed in random pattern ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Process of Austempering results in Martenistic structure Formation of bainite structure Carburised structure Lamellar layers of carbide distributed throughout the structure Martenistic structure Formation of bainite structure Carburised structure Lamellar layers of carbide distributed throughout the structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion. Sulphur Phosphorus Manganese Silicon Sulphur Phosphorus Manganese Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of steel is improved by adding Sulphur, lead and phosphorus Chromium Nickel Nickel and chromium Sulphur, lead and phosphorus Chromium Nickel Nickel and chromium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite. None of these Less than Equal to More than None of these Less than Equal to More than ANSWER DOWNLOAD EXAMIANS APP
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