Engineering Materials Vanadium in high speed steels Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation Promotes retention of austenite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following is not the correct method of increasing fatigue limit? Nitriding of surface Surface decarburisation Cold working Shot peening Nitriding of surface Surface decarburisation Cold working Shot peening ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Taps dies and drills contain carbon Above 1% Below 1% Above 2.2% Below 0.5% Above 1% Below 1% Above 2.2% Below 0.5% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following is the binding material in cemented carbides? Iron Cobalt Nickel Vanadium Iron Cobalt Nickel Vanadium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A reversible change in the atomic structure of steel with corresponding change in the properties is known as Allotropic change Solidus change Molecular change Physical change Allotropic change Solidus change Molecular change Physical change ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Induction hardening is the process of Hardening surface of work-piece to obtain hard and wear resistant surface Inducing hardness by continuous process Heating and cooling rapidly Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Inducing hardness by continuous process Heating and cooling rapidly Increasing hardness throughout ANSWER DOWNLOAD EXAMIANS APP
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