Free Practice API API-570 Exam Questions 2025

Stay ahead with 100% Free Piping Inspector API-570 Dumps Practice Questions

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Total 170 Questions | Updated On: Apr 10, 2025

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Question 1

The total resistivity for a Wenner 4-Pin test that utilizes pins spaced 2 feet apart and a 6 “R” factor is:

A : 2298 ohm/cm

B : 3500 ohm/cm

C : 6000 ohm/cm

D : 8000 ohm/cm

Answer: A

Question 2

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

process within a _______ period.

A : one year

B : 3 month

C : 2 year

D : six month

Answer: D

Question 3

Which of the items listed below would NOT normally be contained in inspection records or piping ?

A : Original date of installation, the specifications and strength levels of the materials used.

B : Original vessel hydrotest pressures and conditions that the tests were performed under

C : Original thickness measurements and the locations and dates of all subsequent readings

D : Calculated retirement thick nesses

Answer: B

Question 4

A blank is required between two NPS 10, 300 lb. class flanges. The maximum pressure in the system is 385 psi at 200 degrees F. A corrosion allowance of 0.175" is required. The inside diameter of the gasket surface is 9.25". The blank is ASTM A516 Grade 70 material with no weld joint. Calculate the pressure design thickness required for the blank

A : 0.789"

B : 0.692"

C : 0.556

D : 0.768"

Answer: B

Question 5

Austenitic stainless steels typically contain chrome and nickel, and are used for:

A : corrosion resistance

B : resistance to high temperature degradation

C : sulfur resistance

D : both a and b, above

Answer: D

Page: 1 / 34

Total 170 Questions | Updated On: Apr 10, 2025

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