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API API-577 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Welding Procedure Qualification | - Welding Procedure Specifications - Essential Variables - Procedure Qualification Records |
| Topic 2: Welding Processes | - Submerged Arc Welding - Gas Tungsten Arc Welding - Gas Metal Arc Welding - Shielded Metal Arc Welding - Flux Cored Arc Welding |
| Topic 3: Welding Inspection | - Inspection During Welding - Inspection Before Welding - Inspection After Welding - Weld Defects and Discontinuities |
| Topic 4: Terminology and Symbols | - Inspection Terminology - Welding Symbols |
| Topic 5: Non-Destructive Examination | - Visual Examination - Liquid Penetrant Testing - Magnetic Particle Testing - Radiographic Testing - Ultrasonic Testing |
| Topic 6: Metallurgy | - Carbon Steels - Heat Treatment - Low Alloy Steels - Stainless Steels - Weldability |
| Topic 7: Refinery and Petrochemical Welding Issues | - Fabrication Requirements - Service-Induced Damage - Repair Welding |
| Topic 8: Materials and Consumables | - Filler Metals - Base Materials - Electrode Classification |
| Topic 9: Welder Qualification | - Qualification Records - Performance Qualification |
API Welding Inspection And Metallurgy Exam: Decide With Evidence
API recommends these training resources for the API Welding Inspection And Metallurgy exam:
Follow the training with steady self-testing — the 112 practice questions from ExamCost help you apply theory and fill any gaps the training leaves.
The API-577 exam is a API certification exam validating the API Welding Inspection And Metallurgy syllabus shown above. It belongs to these credential paths: API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector. Candidates in 2026 start with ExamCost's 112 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
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The official API Welding Inspection And Metallurgy outline defines 9 domains. The leading three are Refinery and Petrochemical Welding Issues, Welding Processes, and Welder Qualification. The full list is in the topics section above, and ExamCost's 112 practice questions cover each one.
The API Welding Inspection And Metallurgy exam contains 110 to complete within 195 minutes. Timed simulation in the ExamCost Desktop Test Engine teaches that rhythm before exam day does.
Current API 510, API 570, or API 653 certification automatically qualifies a candidate. Otherwise, qualification is based on a combination of education and industry experience in welding inspection or related fields. Since requirements change over time, confirm the latest on the official API exam page before scheduling.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 112 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
Scoring and fees are published by API and may change; verify the current figures on the official site.
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API Welding Inspection And Metallurgy Sample Questions:
A four-digit designation for a SMAW electrode under AWS classification uses the third digit to define the:
- A. Coating characteristics.
- B. Strength of the filler metal.
- C. Chemical composition.
- D. Welding position.
Correct Answer: D 🗳️
Which of the following is a hazard associated with in-service welding on a carbon steel pipe containing chlorine?
- A. Hydrogen released during welding process can initiate hydrogen-assisted cracking.
- B. Exothermic decomposition or explosion.
- C. Explosion or unstable reaction with the addition of localized heat.
- D. Carbon steel will burn in the presence of chlorine and high heat.
Correct Answer: C 🗳️
When welding using the GTAW process, which of the following best describes the appearance of a transverse crack on a radiograph?
- A. An irregular darker line near the center of the width of the weld image along the edge of the root pass image.
- B. A feathery line of longitudinal orientation located at the center of the weld image.
- C. Elongated lines of darker density, irregular in width, and slightly winding in the lengthwise direction.
- D. A feathery, twisted line of darker density running across the width of the weld.
Correct Answer: D 🗳️
In general, austenitic stainless steels are considered to have:
- A. Significant issues with lack of sidewall fusion.
- B. A tendency toward lack of root pass fusion.
- C. Good weldability.
- D. Fewer problems with distortion.
Correct Answer: C 🗳️
Rules for qualifying welding operators using radiography on a production weld require what minimum weld length to be examined?
- A. 12 in. (300 mm)
- B. 24 in.(600 mm)
- C. 6 in. (150 mm)
- D. 36 in. (900 mm)
Correct Answer: A 🗳️
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