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Instant Download API : API-577 Questions & Answers as PDF & Test Engine
- Exam Code: API-577
- Exam Name: Welding Inspection And Metallurgy
- Updated: Oct 05, 2026
- No. of Questions: 112 Questions and Answers
- Download Limit: Unlimited
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API API-577 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | Welding Inspection and Metallurgy |
| Exam Number: | API-577 |
| Available Languages: | English |
| Exam Duration: | 195 minutes |
| Passing Score: | Scaled passing score |
| Real Exam Qty: | 110 |
| Related Certifications: | API 570 Piping Inspector API 653 Aboveground Storage Tank Inspector API 510 Pressure Vessel Inspector |
| Exam Format: | Closed-book exam, Multiple-choice questions |
| Certificate Validity Period: | 3 years |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Computer-based exam available through in-person testing centers or remote online proctoring. |
| Pre Condition: | 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. |
| Official Syllabus URL: | https://www.api.org/products-and-services/individual-certification-programs/certifications/api577 |
API API-577 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Refinery and Petrochemical Welding Issues | - Repair Welding - Service-Induced Damage - Fabrication Requirements |
| Metallurgy | - Heat Treatment - Weldability - Carbon Steels - Low Alloy Steels - Stainless Steels |
| Welding Procedure Qualification | - Welding Procedure Specifications - Essential Variables - Procedure Qualification Records |
| Welder Qualification | - Performance Qualification - Qualification Records |
| Non-Destructive Examination | - Magnetic Particle Testing - Liquid Penetrant Testing - Ultrasonic Testing - Visual Examination - Radiographic Testing |
| Materials and Consumables | - Electrode Classification - Filler Metals - Base Materials |
| Terminology and Symbols | - Welding Symbols - Inspection Terminology |
| Welding Processes | - Shielded Metal Arc Welding - Submerged Arc Welding - Flux Cored Arc Welding - Gas Tungsten Arc Welding - Gas Metal Arc Welding |
| Welding Inspection | - Inspection Before Welding - Inspection During Welding - Inspection After Welding - Weld Defects and Discontinuities |
API Welding Inspection And Metallurgy Questions, Answered Honestly
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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.
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Follow the official API Welding Inspection And Metallurgy weights:
- Welding Processes ()
- Terminology and Symbols ()
- Welding Inspection ()
API Welding Inspection And Metallurgy Sample Questions:
A limitation of a stud arc welding (SW) process is:
- A. Process is limited to a flat position.
- B. Weld is not visible during the welding process.
- C. Welding rates are significantly lower than those obtained with SMAW.
- D. Process is primarily suitable for only carbon steel and low alloy steels.
Correct Answer: A 🗳️
Stud arc welding is a specialized process predominantly limited to welding:
- A. Insulation and refractory pins.
- B. Non-pressure-containing welds.
- C. Non-load-bearing welds.
- D. Flat position welds.
Correct Answer: A 🗳️
When welding using the GTAW process, which of the following best describes the appearance of a transverse crack on a radiograph?
- A. A feathery line of longitudinal orientation located at the center of the weld image.
- B. An irregular darker line near the center of the width of the weld image along the edge of the root pass image.
- C. A feathery, twisted line of darker density running across the width of the weld.
- D. Elongated lines of darker density, irregular in width, and slightly winding in the lengthwise direction.
Correct Answer: C 🗳️
Crater cracks typically occur:
- A. In the HAZ at the point where the arc terminates.
- B. In weld metal at the point where the arc terminates.
- C. In the HAZ at the point where the arc initiates.
- D. In weld metal at the point where the arc initiates.
Correct Answer: B 🗳️
ACFM is an NDE technique ideal for inspecting:
- A. Nozzles, ring-grooves, and grind-out areas.
- B. Lap joint welds and uphill welding.
- C. Butt welds (single and double bevel) and plug welds.
- D. Fillet welds, J-welds, and seal welds.
Correct Answer: A 🗳️
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