Exam Name: Welding Inspection And Metallurgy
Certification Provider: API
Corresponding Certification: ICP Programs
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Updated: Oct 13, 2026
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- Total Questions: 112
- Updated on: Oct 13, 2026
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- Total Questions: 112
- Updated on: Oct 13, 2026
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- Total Questions: 112
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Do you still love the feel of a printed book? The PDF version of the API Welding Inspection And Metallurgy materials at Actual4dump was compiled for you: download it, print it, and mark the important knowledge points right on the paper — a time-tested way to work through the difficult parts of the API-577 exam content.
API API-577 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | Welding Inspection and Metallurgy Exam |
| Exam Number: | API-577 |
| Related Certifications: | API 510 Pressure Vessel Inspector API 570 Piping Inspector API 653 Aboveground Storage Tank Inspector |
| Passing Score: | Scaled score, approximately 70% |
| Real Exam Qty: | 110 (100 scored, 10 pre-test) |
| Exam Price: | $440 USD |
| Exam Format: | Closed-book exam, Multiple-choice questions |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 195 minutes |
| Available Languages: | English |
| Recommended Training: | API Recommended Training Resources |
| Exam Registration: | API Official Registration |
| Sample Questions: | DOWNLOAD DEMO |
| 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 |
|---|---|---|
| Welding Procedures and Qualifications | 20% | - Essential and non-essential variables - Procedure Qualification Record (PQR) - Welding Procedure Specification (WPS) - Welder performance qualification |
| Welding Inspection Techniques | 15% | - Inspection planning and documentation - Non-destructive examination (NDE) methods related to welding - Visual inspection methods and criteria - Defect evaluation and acceptance standards |
| Welding Processes | 20% | - Common welding processes (SMAW, GTAW, GMAW, FCAW, SAW, etc.) - Process principles, equipment, applications and limitations - Welding parameters and their effects |
| Welding Metallurgy | 20% | - Phase transformations and cooling rates - Material properties and classifications - Weld defects and metallurgical causes - Heat-affected zone (HAZ) and microstructure changes |
| Welding Materials and Consumables | 15% | - P-number and F-number assignments - Consumable storage, handling and control - Filler metal classification and selection |
| Industry Applications and Standards | 10% | - Safety and quality control in welding operations - Refining and petrochemical plant welding requirements - API RP 577 and related codes/standards |
API-577 Exam FAQ: For Job Seekers and Professionals
You need Scaled score, approximately 70% to pass the API-577 exam, and registration costs $440 USD. Since each attempt carries the fee, candidates who practice thoroughly first — on paper, on screen, under time pressure — put their money behind preparation rather than retakes.
The API-577 exam is the official test for the API Welding Inspection And Metallurgy certification from API. For graduates and job seekers facing drastic competition, it does something a resume line cannot: it verifies your skills against a recognized standard, so when you enter an interview process, the credential helps you stand out on evidence rather than adjectives.
The official outline divides the API-577 exam into weighted domains, including:
- Welding Procedures and Qualifications (20%)
- Welding Inspection Techniques (15%)
- Welding Metallurgy (20%)
Print the API Welding Inspection And Metallurgy PDF from Actual4dump and mark these domains' key points directly on paper — annotating the difficult parts is a proven way to make them stick.
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)
Because it was compiled with readers like you in mind. Download the API-577 exam PDF from Actual4dump, print it, and the API Welding Inspection And Metallurgy content becomes a physical workbook: make notes in the margins, mark the important knowledge points on paper, and carry the pages anywhere — library, dormitory, wherever you study. Reviewing with your own annotations is efficient, and the tactile process keeps you motivated to continue. Many candidates find that once they start, learning this way becomes a genuinely happy process.
The API-577 exam includes 110 (100 scored, 10 pre-test) questions to be completed within 195 minutes minutes. Time is money during preparation too — focused practice on exam-aligned questions is the shortest route to feeling ready.
Yes — safety is engineered in, not just claimed. The API-577 exam package from Actual4dump is verified virus-free, and the exam engine carries a self-protect function, so installing it on your device never puts your important files at risk. Delivery is automatic by email about a minute after payment; if the message is missing, check your spam folder, and contact support if nothing arrives within 2 hours.
Registration is available through these official channels:
In a competitive job market, a booked exam date is a commitment device — it converts your preparation from intention to schedule.
Yes, the following official training options are available:
Combine them with the printable question bank, and you get both structured instruction and the flexibility of self-study on paper.
API Welding Inspection And Metallurgy Sample Questions:
P-numbers are based on which of the following?
- A. Chemical composition of the base metal
- B. Weldability characteristics of base metal
- C. Comparable base metal characteristics
- D. Electrode characteristics
Correct Answer: B 🗳️
Which of the following transfer methods associated with GMAW is characterized by a highly directed stream of discrete drops that are accelerated by arc forces, and negligible spatter?
- A. Short circuiting transfer
- B. Spray transfer
- C. Globular transfer
- D. Pulsed droplet transfer
Correct Answer: B 🗳️
Any electrodes that have become wet:
- A. Should be placed in a warming oven only if they are low-hydrogen.
- B. Should be discarded.
- C. Should be used at a higher amperage than recommended by the manufacturer.
- D. Should not be used for jobs requiring low-hydrogen electrodes.
Correct Answer: D 🗳️
For GMAW welding, the last number of the electrode identifies the:
- A. Operating characteristics.
- B. Chemical composition.
- C. Coating characteristics.
- D. Strength of the electrode.
Correct Answer: A 🗳️
To reduce exposure to moisture of low-hydrogen electrodes after they have been removed from the manufacturer's packaging, they should be stored:
- A. Under low humidity conditions.
- B. In tightly sealed ovens.
- C. In sealed plastic containers.
- D. In warm holding ovens.
Correct Answer: D 🗳️
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