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AWS Certified Welding Inspector — Fundamentals practice questions

209 free questions with answers and explanations.

Practice test
  1. 201.A technician is fabricating a component for a high-pressure system. The blueprint specifies a single-V groove weld with a root opening of 3/32 inches and a groove angle of 60 degrees. The welding symbol shows '60°' inside the V-groove symbol and '3/32' below it. Which dimension is represented by the '3/32' value?Welding Symbols
  2. 202.A CWI is reviewing the Quality Control (QC) plan for a new bridge construction project. The plan states that all critical welds will undergo 100% radiographic testing (RT), and all non-critical welds will be visually inspected only. However, the applicable code (AWS D1.5 Bridge Welding Code) mandates that all groove welds in tension members, regardless of criticality designation, must undergo 100% RT. What is the CWI's professional obligation in this situation?Inspector Duties and Responsibilities
  3. 203.A CWI is requested by a client to inspect welds on a critical component. The client states that due to unexpected delays, they need the CWI to skip the pre-weld inspection and proceed directly to in-process and post-weld inspections to save time. The CWI understands that pre-weld inspection is crucial for preventing costly defects. What is the CWI's most appropriate ethical response?Inspector Duties and Responsibilities
  4. 204.A CWI is reviewing documentation for a completed project. One of the required documents is a Welder Qualification Report (WQR) for each welder. The CWI notices that one WQR is missing the signature of the responsible welding engineer or CWI who qualified the welder. According to standard industry practices and codes, what is the significance of this missing signature?Inspector Duties and Responsibilities
  5. 205.A metallurgist is evaluating a high-strength low-alloy (HSLA) steel for a critical structural application. The steel needs to exhibit good strength and toughness without requiring extensive post-weld heat treatment. Which alloying element is commonly added to promote precipitation hardening, thereby improving strength while maintaining weldability?Welding Metallurgy
  6. 206.A CWI is performing a visual inspection (VT) on a finished weldment. Which of the following discontinuities is characterized by a localized open cavity caused by the entrapped gas during solidification?Nondestructive Examination (NDE)
  7. 207.A welding inspector is reviewing a blueprint that specifies a single-fillet weld. The welding symbol shows a triangle with the vertical leg on the left side of the hypotenuse, positioned below the reference line. What does this symbol indicate regarding the weld location?Welding Symbols
  8. 208.A CWI is reviewing a blueprint for a complex aerospace component that requires a specific nondestructive examination. The NDE symbol indicates 'PT' on the reference line, with a 'B' placed above it. What does the 'B' signify in this context?Welding Symbols
  9. 209.A CWI is conducting a final visual inspection of a completed pressure vessel fabricated to ASME Boiler and Pressure Vessel Code, Section VIII. During the inspection, the CWI observes several areas where the weld reinforcement (crown) on a butt joint exceeds the maximum allowable height specified by the WPS and ASME Code. The WPS specifies a maximum weld reinforcement of 1/8 inch (3.2 mm) for plate thickness up to 1 inch (25 mm). The CWI measures a reinforcement of 3/16 inch (4.8 mm). What is the primary concern with excessive weld reinforcement?Inspector Duties and Responsibilities