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API API-577 : Welding Inspection And Metallurgy
Exam Code: API-577
Exam Name: Welding Inspection And Metallurgy
Updated: Oct 13, 2026
Q & A: 112 Questions and Answers
API-577 Free Demo download
About API API-577 Exam Free Dumps
In 2026, efficiency in study comes from precision: questions that target the syllabus and answers you can trust. FreePdfDump delivers that precision for the API Welding Inspection And Metallurgy exam with 112 verified practice questions.
API API-577 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | Welding Inspection and Metallurgy Exam |
| Exam Number: | API-577 |
| Exam Duration: | 195 minutes |
| Real Exam Qty: | 110 (100 scored, 10 pre-test) |
| Exam Format: | Closed-book exam, Multiple-choice questions |
| Exam Price: | $440 USD |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Related Certifications: | API 570 Piping Inspector API 653 Aboveground Storage Tank Inspector API 510 Pressure Vessel Inspector |
| Passing Score: | Scaled score, approximately 70% |
| Recommended Training: | API Recommended Training Resources |
| Exam Registration: | API Official Registration |
| Sample Questions: |  |
| Exam Way: | Online remote proctored or in-person at Prometric test centers |
| Pre Condition: | Hold current API 510, 570 or 653 certification; or BS/BE + 1 year experience; or 2-year degree + 2 years experience; or high school + 3 years experience (all within last 10 years) |
| Official Syllabus URL: | https://www.api.org/products-and-services/individual-certification-programs/certifications/api577 |
API API-577 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Welding Materials and Consumables | 15% | - Consumable storage, handling and control - P-number and F-number assignments - Filler metal classification and selection |
| Topic 2: Industry Applications and Standards | 10% | - API RP 577 and related codes/standards - Safety and quality control in welding operations - Refining and petrochemical plant welding requirements |
| Topic 3: Welding Processes | 20% | - Welding parameters and their effects - Process principles, equipment, applications and limitations - Common welding processes (SMAW, GTAW, GMAW, FCAW, SAW, etc.) |
| Topic 4: Welding Metallurgy | 20% | - Phase transformations and cooling rates - Material properties and classifications - Weld defects and metallurgical causes - Heat-affected zone (HAZ) and microstructure changes |
| Topic 5: Welding Inspection Techniques | 15% | - Non-destructive examination (NDE) methods related to welding - Defect evaluation and acceptance standards - Visual inspection methods and criteria - Inspection planning and documentation |
| Topic 6: Welding Procedures and Qualifications | 20% | - Essential and non-essential variables - Procedure Qualification Record (PQR) - Welder performance qualification - Welding Procedure Specification (WPS) |
Questions About the API Welding Inspection And Metallurgy Package
The API Welding Inspection And Metallurgy exam requires a score of Scaled score, approximately 70% to pass, and the official registration fee is $440 USD. Knowing these numbers in advance keeps your planning honest.
Each round of the API-577 question bank starts from the official exam objectives: experts map the syllabus, draft questions to cover it with precision, and review the result before release. When new exam points appear, the bank is updated accordingly — deliberate coverage, not guesswork.
Any details you leave with us during browsing or purchase are guarded against misuse and external threats, and they are used only to deliver your order and support. Your API-577 purchase stays between you and us — that is a standing commitment, not a marketing line.
The API Welding Inspection And Metallurgy exam contains 110 (100 scored, 10 pre-test) questions, and you will have 195 minutes minutes to complete them. Practicing under the same constraints makes exam-day pacing feel rehearsed.
The API Welding Inspection And Metallurgy exam is scored on a scale where Scaled score, approximately 70% is required to pass, and the official exam fee is $440 USD.
Hold current API 510, 570 or 653 certification; or BS/BE + 1 year experience; or 2-year degree + 2 years experience; or high school + 3 years experience (all within last 10 years)
You can confirm the current eligibility requirements on the official API-577 exam page before you register.
Many candidates combine practice questions with official training. Recommended options include:
This package includes 112 practice questions for the API Welding Inspection And Metallurgy exam. Every answer is verified by an experienced team of experts, so you can trust what you study.
You can register for the API Welding Inspection And Metallurgy exam through the official channels:
The API Welding Inspection And Metallurgy practice questions are organized around the official exam objectives. Key topics include:
- Welding Metallurgy (20%)
- Welding Materials and Consumables (15%)
- Welding Procedures and Qualifications (20%)
Syllabus-driven coverage means no wasted practice on irrelevant material.
API Welding Inspection And Metallurgy Sample Questions:
Question #1
As a result of welding, metals with a high coefficient of thermal expansion are:
- A. More susceptible to brittle fracture.
- B. More susceptible to distortion during welding.
- C. Less susceptible to cracking during welding.
- D. Less susceptible to brittle fracture.
Correct Answer: B 🗳️
Question #2
Which of the following can result from residual magnetism left in a partially completed weld?
- A. Deflection of the weld arc
- B. Excessive distortion
- C. Solidification cracking
- D. Tendency of weld pool to be sluggish
Correct Answer: A 🗳️
Question #3
What is the maximum temperature at which ACFM may be used?
- A. 500°F (260°C)
- B. 300°F (150°C)
- C. 900°F (480°C)
- D. 1000°F (540°C)
Correct Answer: A 🗳️
Question #4
API Recommended Practice 577 provides:
- A. Guidance on welding inspection during the fabrication and repairing of refinery equipment and piping.
- B. A definition of welds that should be inspected in refinery and chemical plant equipment.
- C. Guidance on the extent and scope of inspection required for specific types of welds.
- D. A definition of specific techniques and practices that should be used for welding inspection.
Correct Answer: A 🗳️
Question #5
Which of the following is not usually an essential variable on a WPS form?
- A. Base metal
- B. Welding technique
- C. Groove design
- D. Welding position
Correct Answer: B 🗳️
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