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Instant Download API : API-570 Questions & Answers as PDF & Test Engine
- Exam Code: API-570
- Exam Name: Piping Inspector
- Updated: Sep 01, 2026
- No. of Questions: 150 Questions and Answers
- Download Limit: Unlimited
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API API-570 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Welding Qualification & Inspection | 13% | - ASME Section IX requirements - Weld examination & acceptance criteria - WPS, PQR & WPQ review |
| Components & Pressure Relieving Devices | 12% | - Piping system flexibility & supports - Valves, flanges, fittings & gaskets - Pressure relief devices inspection |
| Damage Mechanisms & Materials | 16% | - Stress corrosion cracking & sulfidation - Positive Material Identification (PMI) - Material properties & limitations - Corrosion types (uniform, localized, CUI) |
| Repairs, Alterations & Rerating | 14% | - Compliance with API 570 & ASME standards - In-service welding rules - Rerating procedures - Temporary & permanent repairs |
| Data Evaluation & Calculations | 21% | - Weld & casting quality factors - Inspection interval determination - Corrosion rate & remaining life calculations - Minimum required thickness & MAWP |
| Inspection Planning & Practices | 17% | - Thickness measurement locations - Inspection records & documentation - NDT methods & application - Inspection scope & frequency |
| Testing & Code Compliance | 7% | - ASME B31.3 process piping rules - Hydrostatic & pneumatic testing - API 570 scope & responsibilities |
API Piping Inspector Sample Questions:
Question 1
A weld is changed from multi pass per side to single pass per side.
How does this effect the PWHT limitation?
A. This limitation does not apply when a WPS is qualified with a PWHT below the upper transformation temperature
B. This limitation does not apply when a WPS is qualified with a PWHT above the upper transformation temperature
C. The PWHT is not a consideration
D. The PWHT must be performed per ASME IX and time increased byone
Question 2
In a piping circuit, which of the following does not routinely have thickness measurements taken?
A. Fittings
B. Dead legs
C. Valves
D. Straight Run Pipe
Question 3
What is the design thickness of NPS 2 ½, SA106 Gr.B pipe that operates at 25 psi / 200°F
A. 0.002"
B. 0.275"
C. not enough information given
D. 0.100"
Question 4
The acronym CUI refers to.
A. Corrosion Under Inside flow
B. Corrosion Under Insulation
C. Carpet Under Infra-structure
D. Cold Under-ground In-service piping
Question 5
Determine the MAWP of the following piping system , at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/100°F NPS 20, Sch. std, A 106 B 20"
0.280"
0.02 inches/year 5 Years
MAWP=
A. 125 psig
B. 550 psig
C. 160 psig
D. 723 psig
Solutions:
| Question 1 Answer: B | Question 2 Answer: C | Question 3 Answer: A | Question 4 Answer: B | Question 5 Answer: C |
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