Engineering Materials The machinability of steel is improved by adding Nickel and chromium Nickel Chromium Sulphur, lead and phosphorus Nickel and chromium Nickel Chromium Sulphur, lead and phosphorus ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A reversible change in the atomic structure of steel with corresponding change in the properties is known as Physical change Allotropic change Molecular change Solidus change Physical change Allotropic change Molecular change Solidus change ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. Both A and B Free graphite Cementite None of these Both A and B Free graphite Cementite None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 5 to 7% 0.012 2.5 to 4.5% 0.5 to 1% 5 to 7% 0.012 2.5 to 4.5% 0.5 to 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Maximum percentage of carbon in ferrite is 0.0025 0.0006 0.00025 0.001 0.0025 0.0006 0.00025 0.001 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In nodular iron, graphite is in the form of Spheroids Free carbon Flakes Cementite Spheroids Free carbon Flakes Cementite ANSWER DOWNLOAD EXAMIANS APP
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