Dimensions

Question 1

Design - Mill tolerance for rolled and welded pipe

Answer 1

-0.010” 574: 4.1.1.3

Question 2

NDE - Maximum length of Crack, or Incomplete Fusion allowed on a new weld

Answer 2

0” B31.3: Tbl 341.3.2

Question 3

Flanges - Typical flange face finish

Answer 3

125-250 micro-inch B16.5: 6.4.5.3

Question 4

Flanges - When mating flanges, the maximum amount of unparallel allowed (per diameter of flange in feet)

Answer 4

1/16” per foot B31.3: 335.1.c.1

Question 5

Flanges - Max offset for bolt-holes for mating flanges

Answer 5

1/8” B31.3: 335.1.c.3

Question 6

Welding - Maximum allowed size of open discontinuity in a Bend Test

Answer 6

1/8” ASME IX: QW-163

Question 7

Preheat Zone – Distance from toe of weld

Answer 7

1” B31.3: 330.1.4

Question 8

PWHT Zone – Distance from toe of weld

Answer 8

1” B31.3: 331.2.6

Question 9

NDE - Minimum distance beyond the area to be examined to clean a part when performing a MT examination

Answer 9

1” ASME V: T-741.1.b

Question 10

NDE - Minimum distance beyond the area to be examined to clean a part when performing a PT examination

Answer 10

1” ASME V: T-642.b

Question 11

Repairs - Minimum radius of insert patch

Answer 11

1” 570: 8.1.4.2.c

Question 12

Repairs - Minimum radius of insert patch

Answer 12

1” 570: Fig C.2

Question 13

NDE – Max diameter of CML exam point for lines < 10 NPS

Answer 13

2” 570: 3.1.20

Question 14

NDE – Max diameter of CML exam point for lines > 10 NPS

Answer 14

3” 570: 3.1.20

Question 15

NDE – Minimum length of Spot RT

Answer 15

6” B31.3: 344.5.2.c

Question 16

Welding - Min length to RT/UT when qualifying a welder with test coupon or 1st production weld

Answer 16

6” ASME IX: QW-302.2/ 304.1

Question 17

Welding - Minimum length of RT when qualifying a welding operator with a test coupon

Answer 17

6” ASME IX: QW-302.2

Question 18

Corrosion - Soil-to-Air area – distance in air from interface

Answer 18

6” 570: 3.1.87

Question 19

Corrosion - Distance to dig when inspecting for Soil-to-Air corrosion

Answer 19

6-12” 574: 7.4.5

Question 20

NDE – Distance of eye-to-part to count as a Visual Exam

Answer 20

6-24” 577: 9.3.1.e

Question 21

Corrosion - Soil-to-Air area – distance in soil from interface

Answer 21

12” 570: 3.1.87

Question 22

NDE - Minimum upstream limit of intensive examination of injection point circuit

Answer 22

12” 570: 5.5.9

Question 23

PWHT - Min overlap for PWHT when using multiple heats

Answer 23

12” B31.3: 331.2.5

Question 24

Welding - Minimum length of RT/UT when qualifying a welding operator on first production weld

Answer 24

3’ ASME IX: QW-305.1

Question 25

Underground - Minimum length of buried pipe to expose when excavating for inspection

Answer 25

6-8’ 570: 9.3.6

Question 26

Repairs - Maximum size of fillet weld patch on pipe

Answer 26

½ Diameter 570: Fig C.2

Question 27

Circuits - Minimum upstream limit of injection point circuit

Answer 27

Greater of: 12” or 3 Dia. 570: 5.5.9

Question 28

NDE - Minimum downstream limit of intensive examination of injection point circuit

Answer 28

10 Diameters 570: 5.5.9

Question 29

Circuits - Min downstream limit of injection point circuit

Answer 29

Lesser of:
1st direction change + 25’
or
2nd direction change 570: 5.5.9