Engineering Materials Which of the following has a fine gold colour and is used for imitation jewellery? Silicon bronze Babbitt metal Aluminium bronze Gun metal Silicon bronze Babbitt metal Aluminium bronze Gun metal ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in low carbon steel is 0.5% 0.15% 0.3% 0.05% 0.5% 0.15% 0.3% 0.05% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as Eutectic cast irons None of these Hypereutectic cast irons Hypoeutectic cast irons Eutectic cast irons None of these Hypereutectic cast irons Hypoeutectic cast irons ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 5 to 7% 0.5 to 1% 0.012 2.5 to 4.5% 5 to 7% 0.5 to 1% 0.012 2.5 to 4.5% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel contains 50% or more iron Alloying elements like chromium, tungsten nickel and copper Elements like phosphorus, sulphur and silicon in varying quantities 80% or more iron 50% or more iron Alloying elements like chromium, tungsten nickel and copper Elements like phosphorus, sulphur and silicon in varying quantities 80% or more iron ANSWER DOWNLOAD EXAMIANS APP
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