Exam Name: Piping Inspector
Certification Provider: API
Corresponding Certification: Individual Certification Programs
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Check Updated on: Oct 17, 2026
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- Total Questions: 150
- Updated on: Oct 17, 2026
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API API-570 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | API 570 Piping Inspector Certification Exam |
| Exam Number: | API-570 |
| Passing Score: | 400 scaled score out of 500 |
| Related Certifications: | API 653 Storage Tank Inspector API 580 Risk-Based Inspection API 579 Fitness-for-Service API 510 Pressure Vessel Inspector |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 450 (275 closed-book + 45 min break + 225 open-book) |
| Exam Format: | Computer-Based Testing (CBT), Multiple-choice questions, Closed-book section, Open-book section with digital reference codes |
| Available Languages: | English |
| Exam Price: | $875 (API member), $1,125 (non-member) |
| Real Exam Qty: | 170 (110 closed-book, 60 open-book; 140 scored, 30 pretest) |
| Recommended Training: | API Official Study Resources API 570 Body of Knowledge |
| Exam Registration: | API ICP Application Portal Prometric Exam Scheduling |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | In-person proctored computer-based testing at Prometric centers worldwide |
| Pre Condition: | BS/Engineering: 1 year inspection experience; 2-year tech degree: 2 years; High school: 3 years; No formal education: 5+ years; All require ≥1 year inspection-related work within last 10 years |
| Official Syllabus URL: | https://www.api.org/certifications/individual-certification-programs/570 |
API API-570 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Evaluation & Calculations | 21% | - Weld & casting quality factors - Inspection interval determination - Corrosion rate & remaining life calculations - Minimum required thickness & MAWP |
| Topic 2: Damage Mechanisms & Materials | 16% | - Stress corrosion cracking & sulfidation - Material properties & limitations - Corrosion types (uniform, localized, CUI) - Positive Material Identification (PMI) |
| Topic 3: Repairs, Alterations & Rerating | 14% | - In-service welding rules - Compliance with API 570 & ASME standards - Rerating procedures - Temporary & permanent repairs |
| Topic 4: Inspection Planning & Practices | 17% | - Thickness measurement locations - NDT methods & application - Inspection scope & frequency - Inspection records & documentation |
| Topic 5: Components & Pressure Relieving Devices | 12% | - Piping system flexibility & supports - Valves, flanges, fittings & gaskets - Pressure relief devices inspection |
| Topic 6: Welding Qualification & Inspection | 13% | - ASME Section IX requirements - WPS, PQR & WPQ review - Weld examination & acceptance criteria |
| Topic 7: Testing & Code Compliance | 7% | - API 570 scope & responsibilities - Hydrostatic & pneumatic testing - ASME B31.3 process piping rules |
API-570 Exam FAQ: Quality You Can Inspect
BS/Engineering: 1 year inspection experience; 2-year tech degree: 2 years; High school: 3 years; No formal education: 5+ years; All require ≥1 year inspection-related work within last 10 years Since requirements change over time, confirm the latest on the official API exam page before scheduling.
The API-570 exam is a API certification exam validating the API Piping Inspector syllabus shown above. It belongs to these credential paths: API 510 Pressure Vessel Inspector, API 653 Storage Tank Inspector, API 580 Risk-Based Inspection, API 579 Fitness-for-Service. Candidates in 2026 prepare for it with iPassleader's 150 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
API recommends these training resources for the API Piping Inspector exam:
Follow the training with steady self-testing — the 150 practice questions from iPassleader help you apply theory and fill any gaps the training leaves.
The API Piping Inspector exam requires 400 scaled score out of 500 to pass, and registration costs $875 (API member), $1,125 (non-member). A failed attempt means paying the same fee again — a readiness check with the iPassleader engines before booking is the cheaper option.
The API Piping Inspector exam contains 170 (110 closed-book, 60 open-book; 140 scored, 30 pretest) to complete within 450 (275 closed-book + 45 min break + 225 open-book). Timed simulation in the iPassleader Desktop Test Engine teaches that rhythm before exam day does.
iPassleader issues a full refund if you take the API Piping Inspector exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
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 150 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The official API Piping Inspector outline defines 7 domains. The leading three are Damage Mechanisms & Materials (16%), Testing & Code Compliance (7%), and Welding Qualification & Inspection (13%). The full list is in the topics section above, and iPassleader's 150 practice questions cover each one.
In-person proctored computer-based testing at Prometric centers worldwide Register for the API Piping Inspector exam through these official channels:
After booking, iPassleader delivers your practice questions within 1 minute — preparation starts the same day.
API Piping Inspector Sample Questions:
Which of the following applies to socket welds in piping systems?
- A. Should be avoided
- B. Should be avoided where crevice corrosion may occur
- C. Should be used in all welded piping
- D. Should be welded using SAW only
Correct Answer: B 🗳️
The inspector shall approve all repair and alteration work at designated times, referred to as_______.
- A. inspection delay points
- B. work stop points
- C. hold points
- D. inspector's discretion
Correct Answer: C 🗳️
provides general requirements and detailed assessment procedures for specific types of degradation that are referenced in API 570.
- A. API RP 579
- B. API 653
- C. ASME 816.5
- D. API 598
Correct Answer: A 🗳️
The valve used to automatically prevent back flow is valve.
- A. gate
- B. globe
- C. slide
- D. ball check
Correct Answer: D 🗳️
Exemptions for preheating and post weld heat treatment must be approved by the____.
- A. applicable standard, API 570
- B. repair procedure.
- C. inspector
- D. piping engineer
Correct Answer: D 🗳️
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