API API-577 Online Practice Questions and Exam Preparation

API API-577 Online Questions & Answers

• Question 41:

  What is the purpose of the IQI?

  A. Determining that the required sensitivity of the radiograph is achieved
  B. Marking the radiographs with a definite identifying characteristic
  C. Ascertaining how much radiation the source has penetrated the material
  D. Establishing the depth that the radiation source penetrates
  A. Determining that the required sensitivity of the radiograph is achieved

• Question 42:

  Which of the following is not usually an essential variable on a WPS form?

  A. Welding technique
  B. Groove design
  C. Base metal
  D. Welding position
  A. Welding technique

• Question 43:

  What is a sensitized microstructure in austenitic stainless steels?

  A. An area next to the heat-affected zone that has suffered some softening and loss of strength.
  B. The microstructure of the weld that has been melted and will therefore have properties more like a casting than the base metal.
  C. An area near the heat-affected zone affected by welding that may experience intergranular corrosion.
  D. The high residual stress zone adjacent to the weld fusion line that will have higher hardness than the weld or base material.
  C. An area near the heat-affected zone affected by welding that may experience intergranular corrosion.

• Question 44:

  How much should each pass of the transducer overlap the previous path during a weld scan?

  A. 5% of the transducer element dimension.
  B. 10% of the transducer element dimension.
  C. 15% of the transducer element dimension.
  D. 20% of the transducer element dimension.
  B. 10% of the transducer element dimension.

• Question 45:

  In general, austenitic stainless steels are considered to have:

  A. Good weldability.
  B. Significant issues with lack of sidewall fusion.
  C. Fewer problems with distortion.
  D. A tendency toward lack of root pass fusion.
  A. Good weldability.

• Question 46:

  To reduce the possibility of cracking, which of the following maximum hardness levels is required for weldments in wet H2S service?

  A. HRC 20
  B. HRC 22
  C. HRC 25
  D. HRC 32
  B. HRC 22

• Question 47:

  General awareness of metallurgy is important to the welding inspector because:

  A. Welding processes can affect both mechanical and corrosion properties of a weldment.
  B. The crystalline structure of base metals affects the resulting structure of the weld.
  C. Physical properties of the final weldment can be significantly affected by preheat and postweld heat treatment (PWHT).
  D. A thorough knowledge of weld metal structures is necessary to understand weldability.
  A. Welding processes can affect both mechanical and corrosion properties of a weldment.

• Question 48:

  The WPS gives the welder specific guidelines to:

  A. Set the machine amperage, voltage, and travel speed.
  B. Confirm the project heat input is followed during welding.
  C. Successfully complete production welds.
  D. Make imperfection/defect-free welds.
  A. Set the machine amperage, voltage, and travel speed.

• Question 49:

  Which term is used to describe a groove melted into the base metal adjacent to the weld toe or weld root and left unfilled by weld metal?

  A. Longitudinal groove
  B. Incomplete fusion
  C. Under fill
  D. Undercut
  D. Undercut

• Question 50:

  Which of the following is an important aspect of a qualified WPS?

  A. Welder qualification
  B. Maintaining project schedule
  C. Welding program effectiveness
  D. Fabrication quality control
  D. Fabrication quality control