Free API API-570 Exam Questions

Become API Certified with updated API-570 exam questions and correct answers

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Total 170 Questions | Updated On: Apr 28, 2026

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Question 1

Resistance to sulphidation is generally achieved by

A : grading to higher nickel alloys

B : grading to higher chromium alloys

C : grading to higher copper based alloys

D : l of the above.

Answer: B

Question 2

Steels with CE greater than 0.55% typically require:

A : eheating only

B : e-heating & PWHT

C : pre- heating or PWHT

D : HT only

Answer: B

Question 3

A local area has been thinned on the wall thickness of a flanged fitting. The fitting is NPS 8 Class 400, and the local area has been thinned to 0.400”. Is this corrosion acceptable per ASME B 16.5?

A :

B :

C : nnot be calculated from information given

D : ll thicknesses may not be less than that shown in B16.5

Answer: B

Question 4

During periodic scheduled inspections, more extensive inspection should be applied to an area beginning __________ upstream of the injection nozzle and continuing for atleast __________ pipe diameters downstream of the injection point.

A : 10 inches, 20

B : 12 feet, 10

C : 12 inches, 10

D : 10 feet, 10

Answer: C

Question 5

A welder continuity log should be maintained to allow verification that each welder has utilized each welding

process within a _______ period.

A : year

B : 3 month

C : 2 year

D : x month

Answer: D

Page: 1 / 34

Total 170 Questions | Updated On: Apr 28, 2026

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