Engineering Materials Which of the following statements are true for annealing of steels? Cooling is done slowly and steadily Internal stresses are relieved Steels are heated to 500 to 700°C All of these Cooling is done slowly and steadily Internal stresses are relieved Steels are heated to 500 to 700°C All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A reversible change in the atomic structure of steel with corresponding change in the properties is known as Molecular change Allotropic change Solidus change Physical change Molecular change Allotropic change Solidus change Physical change ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Free cutting steels Require minimum cutting force Can be cut freely Is used where rapid machining is the prime requirement Contain carbon in free from Require minimum cutting force Can be cut freely Is used where rapid machining is the prime requirement Contain carbon in free from ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following element results in presence of free graphite in C.I.? Manganese Carbon Sulphur Silicon Manganese Carbon Sulphur Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of copper to aluminium results in Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which can replace tungsten in high speed steels is Vanadium Cobalt Nickel Molybdenum Vanadium Cobalt Nickel Molybdenum ANSWER DOWNLOAD EXAMIANS APP
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