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Metallurgical Engineering Iron Making In Metallurgy Difficulty: Medium

Identify the correct combination of the following statements. P. Hydrogen electrode is a standard used to measure redox potentials. Q. Activation polarization refers to electrochemical process controlled by reaction sequence at metal-solution interface. R. Potential-pH diagrams can be used to predict corrosion rates of metals. S. Cathodic protection can use sacrificial anodes such as magnesium. The fixed carbon content of coke used in Blast furnace is From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements: P. The engineering stress-strain curves in tension and compression are identical. Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect. R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve. S. The true stress-true strain curve in tension and compression are identical. 200 mesh screen has 200 openings per The fusion temperature of Zirconia brick is