Engineering Materials Addition of copper to aluminium results in Improvement of casting characteristics Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improving machinability Improvement of casting characteristics Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improving machinability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Beryllium bronze contains 60% copper and 40% beryllium 99% copper and 1% beryllium 97.75% copper and 2.25% beryllium 80% copper and 20% beryllium 60% copper and 40% beryllium 99% copper and 1% beryllium 97.75% copper and 2.25% beryllium 80% copper and 20% beryllium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cast iron is characterized by minimum of following percentage of carbon 0.013 0.002 0.008 0.02 0.013 0.002 0.008 0.02 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical point for all steels is 700°C 600°C 913°C 723°C 700°C 600°C 913°C 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following impurity in cast iron makes it hard and brittle? Silicon Phosphorus Sulphur Manganese Silicon Phosphorus Sulphur Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cementite consist of 13% carbon and 87% ferrite 6.67% carbon and 93.33% iron 13% ferrite and 87% cementite 13% cementite and 87% ferrite 13% carbon and 87% ferrite 6.67% carbon and 93.33% iron 13% ferrite and 87% cementite 13% cementite and 87% ferrite ANSWER DOWNLOAD EXAMIANS APP
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