Section 11

Question 1

WPS/PQR shall be qualified in accordance with what code(s)?

Answer 1

ASME IX, API 650 (Section 9) and API 653

API 653 par 11.1.1

Question 2

Welders and welding operations shall be qualified in accordance with what code(s)?

Answer 2

ASME IX, API 650 (Section 9) and API 653

API 653 par 11.1.1

Question 3

What is required to enable verifying which welder made a particular section of weld in a tank?

Answer 3

Welder ID stamped at an interval not to exceed 3’ or a document that records the welder stencil for each segment of weld

API 653 par 11.2.2

Question 4

What welds do not require welder identification?

Answer 4

Roof plates and flange-to-nozzle neck welds

API 653 11.2.2

Question 5

When can preheat or CDW in lieu of PWHT be used for a tank repair?

Answer 5

For repairs to nozzles

API 653 par 11.3

Question 6

What material is allowed to be preheated in lieu of the code required PWHT following a repair?

Answer 6

P1

API 653 par 11.3.1 (a)

Question 7

What material is allowed to use Controlled Deposition Welding (CDW) in lieu of the code required PWHT following a repair?

Answer 7

P1, P3, and P4

API 653 par 11.3.2 (a)

Question 8

What welding processes can be used when substituting preheat for the code required PWHT following a repair?

Answer 8

SMAW, GMAW, FCAW, GTAW

API 653 par 11.3.2 (b)

Question 9

When impact testing is not required and Controlled Deposition Welding is utilied in lieu of PWHT following a nozzle repair, what is the minimum required preheat?

Answer 9

300°F

API 653 par 11.3.1 (d)

Question 10

When impact testing is not required and Controlled Deposition Welding is utilized in lieu of PWHT following a nozzle repair, how far past the weld must the preheat be checked?

Answer 10

Greater of 4” or 4 times the depth or repair

API 653 par 11.3.1 (d)

Question 11

When impact testing is not required and Controlled Deposition Welding is utilized in lieu of PWHT following a nozzle repair, what is the maximum allowed interpass temperature?

Answer 11

600°F

API 653 par 11.3.1 (d)

Question 12

When impact testing is required and Controlled Deposition Welding is utilized in lieu of PWHT following a nozzle repair, what is the minimum required preheat?

Answer 12

300°F

API 653 par 11.3.1 (d)