API-577 Exam Details

  • Exam Code
    :API-577
  • Exam Name
    :Welding Inspection and Metallurgy
  • Certification
    :API Certifications
  • Vendor
    :API
  • Total Questions
    :110 Q&As
  • Last Updated
    :Jul 12, 2026

API API-577 Online Questions & Answers

  • Question 61:

    The simplest weldability tests are those that evaluate:

    A. Porosity and slag inclusions of the weld.
    B. Cracking and corrosion resistance of the weld.
    C. Strength and ductility of the weld.
    D. Ductility and hardness of the weld.

  • Question 62:

    Prior to any welding, inspectors should review the:

    A. WPQ to verify that the welder is qualified to perform the welding, given its position and process.
    B. WPQ to verify that the specification in use is correct.
    C. PQR to verify that the welder is qualified to perform the welding, given its position and process.
    D. WPS to verify that the welder is qualified to perform the welding, given its position and process.

  • Question 63:

    One limitation of a shielded metal arc welding (SMAW) process is that:

    A. Deposition rates are lower than GMAW.
    B. The process cannot be used in areas of limited access.
    C. It has low tolerance for contaminants.
    D. The process is sensitive to wind and draft.

  • Question 64:

    What is the Brinell hardness limit value for 1-1/4 Cr -1/2 Mo steel in refining service?

    A. 200
    B. 215
    C. 225
    D. 241

  • Question 65:

    When welding nickel alloys, it is important that:

    A. The bevel angle be wide enough to allow oscillation of welding torch.
    B. The cooling rate be controlled in order to prevent rapid cooling.
    C. Preheating is always performed to prevent hot cracking.
    D. A wide face and thinner bevel be used.

  • Question 66:

    What term is used to describe the mechanical working of metals using impact blows?

    A. Hammering
    B. Mechanical stress relieving
    C. Needle gunning
    D. Peening

  • Question 67:

    In magnetic particle examination, the yoke is placed parallel to the weld to detect cracks:

    A. In the undercutting.
    B. Parallel to the weld.
    C. Transverse to the weld.
    D. In the HAZ.

  • Question 68:

    What increases when a welder increases the amperage?

    A. Voltage
    B. Arc length
    C. Heat
    D. Travel speed

  • Question 69:

    To avoid burn through during in-service welding on thinner wall equipment, it is generally recommended to:

    A. Use larger diameter electrodes.
    B. Minimize weaving the bead.
    C. Maximize weaving the bead.
    D. Use high heat input.

  • Question 70:

    Which welding process produces a fast-freezing weld pool and is generally suited for joining thin sections or root passes?

    A. GMAW-S
    B. GTAW
    C. GMAW
    D. FCAW

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