Welding Techniques and Terminology Quiz
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Questions and Answers

Stainless steels are characterized by having a minimum percentage of which element?

  • 7%
  • 12% (correct)
  • 15%
  • 20%
  • What process involves adding carbon to the surface of steel to enhance hardness?

  • Precipitation hardening
  • Pack carburizing (correct)
  • Decarburization
  • Quenching
  • Which angle refers to the position of the electrode relative to the base metal from an end view?

  • Travel angle
  • Root angle
  • Plate angle
  • Lead angle (correct)
  • When experiencing undercutting in arc welding, which adjustment is most effective to mitigate this issue?

    <p>Reduce the current</p> Signup and view all the answers

    What is the most common position for performing welding due to ease of execution?

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

    Which term is also known as a fillet weld?

    <p>T-weld</p> Signup and view all the answers

    What is the primary reason to direct the arc toward the bottom plate when making a T-weld?

    <p>Prevent undercutting on the top piece</p> Signup and view all the answers

    Which of the following does GMAW stand for?

    <p>Gas Metal Arc Welding</p> Signup and view all the answers

    Which type of SMAW welding machine provides both AC and DC current for welding?

    <p>Transformer/rectifier</p> Signup and view all the answers

    What is the purpose of changing the polarity in electric arc welding?

    <p>Controls heat and depth of penetration</p> Signup and view all the answers

    What does the last digit in the electrode number classify?

    <p>Special characteristics of the electrode</p> Signup and view all the answers

    In GMAW, the consumable electrode is in the form of:

    <p>Continuous wire</p> Signup and view all the answers

    Which is the best eye protection to wear under a welding helmet for tasks other than welding?

    <p>Clear safety glasses</p> Signup and view all the answers

    The first two digits in the AWS electrode classification number indicate what characteristic?

    <p>Tensile strength</p> Signup and view all the answers

    Which destructive type weld test involves bending the welded joint?

    <p>Guided bend test</p> Signup and view all the answers

    What term describes the continuous running time that a welding machine was designed for?

    <p>Duty cycle</p> Signup and view all the answers

    What is the appropriate gas pressure setting for MIG welding?

    <p>25-30 psi</p> Signup and view all the answers

    Which of the following gases is not used in the MIG welding process?

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

    Which gas is recognized as flammable in welding?

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

    What is a key advantage of MIG welding compared to stick welding?

    <p>It does not have slag to be chipped off.</p> Signup and view all the answers

    Which statement is true regarding most MIG welding equipment?

    <p>It is considered semi-automatic.</p> Signup and view all the answers

    Which of the following is not classified as a welding defect?

    <p>Behind cut</p> Signup and view all the answers

    In the context of TIG welding, which statement is false?

    <p>Tungsten has a very low melting point.</p> Signup and view all the answers

    Which of the following statements about TIG welding is incorrect?

    <p>It is faster than MIG welding.</p> Signup and view all the answers

    What is the definition of toughness in relation to metals?

    <p>The property that allows a metal to absorb energy and deform plastically</p> Signup and view all the answers

    Which term describes a metal's ability to resist being pulled apart?

    <p>Tensile strength</p> Signup and view all the answers

    How is quenching defined in the context of metal treatment?

    <p>Rapidly cooling a metal to alter its properties</p> Signup and view all the answers

    Which property of metal does impact strength refer to?

    <p>Capacity to absorb energy from sudden loads without fracturing</p> Signup and view all the answers

    What is the primary characteristic of an alloy metal?

    <p>A mixture of metals with specific properties for applications</p> Signup and view all the answers

    What type of strength does shear strength refer to in metals?

    <p>Capacity to resist sliding forces along a plane</p> Signup and view all the answers

    What distinguishes cast iron from mild steel in terms of carbon content?

    <p>Cast iron contains 2% to 4% carbon</p> Signup and view all the answers

    Which type of strength is associated with a metal's ability to resist deformation under compressive forces?

    <p>Compressive strength</p> Signup and view all the answers

    Which types of fire extinguishers should be available in the welding area?

    <p>Class A, B and C</p> Signup and view all the answers

    In case of an emergency in the welding area, what is essential to have?

    <p>Fire blanket</p> Signup and view all the answers

    What method involves starting an arc by touching the metal with the electrode and then raising it?

    <p>Tapping method</p> Signup and view all the answers

    What is the technique called when you start an arc by dragging the electrode across the metal?

    <p>Scratch method</p> Signup and view all the answers

    What is the term for one bead or layer of filler metal applied in welding?

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

    What is the first pass made in a welding joint called during multiple passes?

    <p>Root pass</p> Signup and view all the answers

    What is another term for a fillet weld?

    <p>&quot;T&quot; weld</p> Signup and view all the answers

    What is the recommended angle of the electrode during stick welding?

    <p>10-15 degrees from the vertical</p> Signup and view all the answers

    What is the output specification of a welder in terms of voltage and amperage?

    <p>Low voltage and high amperage</p> Signup and view all the answers

    What temperature is generally associated with the electric welding arc?

    <p>9000 degrees F</p> Signup and view all the answers

    Which of the following is not considered a safety item when welding?

    <p>Spare electrodes</p> Signup and view all the answers

    What is the ideal size of an electrode for most welding tasks in agricultural mechanics?

    <p>1/8 inch</p> Signup and view all the answers

    When preparing edges for welding, what tool is primarily used?

    <p>Chipping hammer</p> Signup and view all the answers

    What is the correct arc length to maintain during welding for optimal results?

    <p>1/8 inch</p> Signup and view all the answers

    What is the safest way to extinguish burning clothing on a person?

    <p>Fire blanket</p> Signup and view all the answers

    In a welding area, what purpose does water serve?

    <p>All of the above</p> Signup and view all the answers

    Study Notes

    Indiana FFA Welding Career Development Event Question Bank

    • Event Focus: Indiana FFA Welding Career Development Event.
    • Format: Question bank, likely for a competition.
    • Content: The questions cover various aspects of welding, including procedures, techniques, safety, and materials.

    Welding Procedures and Techniques

    • Electrode Freezing: If an electrode freezes to the work, immediately turn off the welding machine.
    • Arc Length: The proper length of arc is judged by the sound, appearance of the arc and weld.
    • Welding Speed: Moving the electrode too fast during welding results in a wide bead, insufficient metal deposition, or an excessively high bead.
    • Welding Positions: Different positions, like horizontal, vertical, and overhead, are recognized welding positions.
    • Polarity: Straight polarity involves negative work and positive electrode and vice versa for reverse polarity.
    • Second Pass: A second weld pass should not be done if the slag from the first pass has not been removed.
    • Flux: Flux prevents metal oxidation during welding.
    • Welding Defects: Porosity refers to gas pockets and voids in the weld.

    Welding Materials and Properties

    • Electrode Tensile Strength: The tensile strength of an E-7018 electrode is 70,000 pounds per square inch (psi).
    • Mild Steel Composition: Mild steel is typically low in carbon content.
    • Desirable/Undesirable Metals: Some elements in steel (like sulfur) are undesirable for welding.
    • Welding Electrode Types: Specific electrodes, like E-6011, are designed for particular applications.

    Other Important Information

    • Duty Cycle: Duty cycle measures the continuous operating time of an arc welder.
    • Work Angle: The work angle is the angle between the electrode and the base metal.
    • Welding Position Types: There are different welding positions like flat, horizontal, vertical, overhead.
    • Malleability: Malleability refers to the ability of a metal to be hammered or rolled.
    • Welding Questions and Answers (in various sections): A comprehensive list of questions, covering a range of welding aspects.

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    Description

    Test your knowledge on key concepts in welding, including the characteristics of stainless steels, effective welding positions, and terminology used in the field. This quiz covers fundamental processes and adjustments in welding to enhance your understanding of the craft.

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