Mechanical Testing Analysis and Results
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Questions and Answers

What is the chief ingredient in ferrous metals?

  • Lead
  • Iron (correct)
  • Aluminum
  • Copper

    • What is the starting point for commercial iron products?

  • Steel
  • Copper
  • Wrought iron
  • Pig iron (correct)

    • What process separates iron from oxygen when they are chemically mixed?

  • Sintering
  • Reduction (correct)
  • Annealing
  • Smelting

    • What is the purpose of annealing in the context of iron?

    <p>To harden the iron</p> Signup and view all the answers

    What element is found in pig iron as a major component?

    <p>Carbon</p> Signup and view all the answers

    Which type of iron contains almost no carbon?

    <p>Wrought iron</p> Signup and view all the answers

    What is the composition of Duplex steel?

    <p>Half ferritic and half austenitic</p> Signup and view all the answers

    Why are stainless steels commonly used in medical equipment and food production equipment?

    <p>Due to ease of sterilization</p> Signup and view all the answers

    What type of metals are tool steels typically alloyed with?

    <p>Vanadium, Cobalt, Molybdenum, Tungsten</p> Signup and view all the answers

    What does the 'W' in W-shape structural steel member stand for?

    <p>Wide</p> Signup and view all the answers

    In what applications are W-shapes commonly used?

    <p>As beams, columns, truss members</p> Signup and view all the answers

    How do S-shapes differ from W-shapes in terms of strength?

    <p>W-shapes are stronger than S-shapes</p> Signup and view all the answers

    What is the purpose of fitting the fractured ends of the sample together during a tension test?

    <p>To measure the elongation</p> Signup and view all the answers

    How is the percentage elongation calculated in a tension test?

    <p>[ (Ls - Lo)/Lo) x 100]</p> Signup and view all the answers

    When is the specimen recommended to be replaced during a tension test?

    <p>If the original specimen had wrong dimensions</p> Signup and view all the answers

    What is used to calculate the rupture strength in a tension test?

    <p>(Ao - As)/Ao</p> Signup and view all the answers

    Which method is employed to calculate the modulus of elasticity in a tension test?

    <p>Hooke’s law</p> Signup and view all the answers

    What parameter does the percent reduction in cross-sectional area measure in a tension test?

    <p>(Ao - As)/As</p> Signup and view all the answers

    What is the purpose of ASTM E290 Guided Bend Weld Test Fixture?

    <p>To convert motion from ELF and Instron fatigue testers into bending motion</p> Signup and view all the answers

    In the bend test procedure, what does 'C' represent in the formula C = 2r + 3t ± t/2?

    <p>Distance between lower supports</p> Signup and view all the answers

    Where should the bending force be applied during the bend test?

    <p>At mid-length between supports on the opposite side of the specimen from the end supports</p> Signup and view all the answers

    What action should be taken if the required angle of bend cannot be achieved in the bend fixture?

    <p>Complete the test by pressing the specimen between suitable platens until the desired bend conditions are obtained</p> Signup and view all the answers

    When not exceeding 180° of bend during testing, what should be done?

    <p>Place a spacer with thickness twice the required bend radius between the two legs of the specimen</p> Signup and view all the answers

    How should the bending force be applied during testing?

    <p>Smoothly and without shock</p> Signup and view all the answers

    What is the purpose of ASTM E350-95 standard test method?

    <p>To determine the chemical composition of various types of iron and steel</p> Signup and view all the answers

    Which element has the highest concentration range as per the ASTM E350-95 standard test method?

    <p>Silicon</p> Signup and view all the answers

    What is the concentration range for cobalt in the ASTM E350-95 standard test method?

    <p>0.01 to 0.30%</p> Signup and view all the answers

    What is the purpose of the test methods outlined in ASTM E350-95 standard?

    <p>To analyze metals and alloys for compliance with compositional specifications</p> Signup and view all the answers

    Which element has the lowest concentration range in the ASTM E350-95 standard test method?

    <p>Oxygen</p> Signup and view all the answers

    What is the significance of the chemical analysis methods specified in ASTM E350-95?

    <p>Primarily intended as referee methods to test materials for compliance with compositional specifications</p> Signup and view all the answers

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