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: Mar 07, 2022

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Question 1

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 2

A NPS 4 Schedule 80 (0.337" wall) branch connection is welded into a NPS 6 Schedule 40 (0.280" wall). A 0.375" reinforcing pad is used around the branch connection. The fillet weld sizes are as required by the Code. The branch connection is inserted into the header. The material of the branch and header is ASTM A672 Grade B70. What thickness would be used to determine whether heat treatment of the connection is required ? (Express answer to nearest hundredth)

A : 0.768"

B : 0.891"

C : 0.998"

D : 0.567"

Answer: B

Question 3

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 4

An advantage of SMAW is:

A : uipment is very expensive

B : ag must be removed from weld passes

C : n be used on almost all commonly-used metal or alloy

D : position rates are much higher than for other processes

Answer: C

Question 5

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

Page: 1 / 34

Total 170 Questions | Updated On: Mar 07, 2022

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