API API-570 Practice Exams
Last updated on Oct 22,2026- Exam Code: API-570
- Exam Name: Piping Inspector
- Certification Provider: API
- Latest update: Oct 22,2026
What is the test pressure of a metallic piping system whose design temperature is above the test temperature using the following conditions? NPS 6, SA106 Gr.B, 100 psi / 800°F
- A . 150 psi
- B . 450 psi
- C . 278 psi
- D . Test temperature verses design temperatures are not different
In the AWS D 5.1, what is the designation for cellulose DCEP electrode?
- A . E 7018
- B . E 7016
- C . E 6011
- D . E 6010
Which of the following applies to socket welds in piping systems?
- A . Should be avoided
- B . Should be used in all welded piping
- C . Should be welded using SAW only
- D . Should be avoided where crevice corrosion may occur
The type of joints generally limited to piping in non critical service NPS 2 and smaller is.
- A . butt welded
- B . brazed
- C . threaded
- D . clamped
What the MAWP is recalculated, the wall thickness used shall be the actual thickness minus:
- A . The estimated corrosion loss before the date of the next inspection
- B . Twice the estimated corrosion loss before the date of the next inspection
- C . Three times the estimated corrosion loss before the date of the next inspection
- D . The estimated corrosion loss before the date of the next inspection
A leak test was performed on a buried piping system. The system was re pressured to 125 psi four hours into the test. Sometime during the final four hours, the gauge fell 5
- A . The piping system failed.
- B . The piping system passed
- C . The test must be repeated
- D . The piping system must be visually inspected
provides general requirements and detailed assessment procedures for specific types of degradation that are referenced in API 570.
- A . API 598
- B . API 653
- C . API RP 579
- D . ASME 816.5
What is the maximum Brinell hardness of base metal P-6?
- A . 241
- B . 270
- C . 281
- D . not specified
When may welding not be performed?
- A . If the weld area is frosted or wet
- B . If the weld area is above 120° F
- C . If the weld area is in an inert atmosphere
- D . If the weld area is not in direct sunlight
The preheat zone shall extend beyond each edge of a pipe weld
- A . 1”
- B . 2”
- C . 2T
- D . 3T