CWB Level 2 MODULE 8 INTRODUCTION TO METALLURGY & MATERIAL SPECIFICATION RATED A

CWB Level 2 MODULE 8 INTRODUCTION TO METALLURGY & MATERIAL SPECIFICATION RATED A Exam Question Section 3 From the following, select the ferrous metals; a) wrought iron b) copper c) aluminum d) carbon steel e) stainless steel a) wrought iron d) carbon steel e) stainless steel Exam Question Section 3 What is taconite? a) aluminum alloy b) stainless steel c) pig iron d) iron ore e) low alloy steel d) iron ore Exam Question Section 3 Limestone is a fluxing agent that removes impurities to form a slag ; True/False True Exam Question Section 3 In the basic oxygen furnace, what does the term "basic" refer to? a) the chemical nature of the molten steel b) the chemical nature of the refractory lining of the furnace c) the chemical nature of the steel after pouring b) the chemical nature of the refractory lining of the furnace Exam Question Section 4 & 5 In the electric furnace, what provides the heat to melt the metal charge? An arc between carbon electrodes and the metal Exam Question Section 4 & 5 What are the advantages of continuous casting over ingot casting? Less segregation, less rolling required, less cost Exam Question Section 4 & 5 "Alloy steels and steels with greater than 0.3% carbon are fully killed" True/False True Exam Question Section 4 & 5 What would a Non-Metallic inclusions in a steel plate look like? Exam Question Section 6 " Metals have a crystalline structure in which the atoms are arranged in an irregular pattern " True/False False Exam Question Section 6 Can you describe what a _____________ would look like ? a)Body-centred cubic (BCC) b) Face-Centred cubic (FCC) Exam Question Section 6 Ferrite, austenite and cementite are known as: a) particles b) elements c) phases c) phases Exam Question Section 6 What is harder: Martensite or fine pearlite? Martensite Exam Question Section 6 & 7 " If a steel is being heat treated to produce maximum hardness, it must be heated prior to quenching at a temperature sufficient to remove any ___________________presents" Ferrite Exam Question Section 6 & 7 Martensite is extremely brittle. Can martensite be tempered to enhance its toughness? Yes Exam Question Section 6 & 7 When steel is normalized, how is the steel cooled