X-ray tolerance.
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Questions and Answers

Using radiography, which of the following makes IP a defect on a 6” weld on a 8” OD Pipe.

  • a individual IP of 5/8
  • a indication of IP of 1/16, 1/4
  • a indication of IP of 1/16, 2/32 , 1/16
  • none of the above (correct)

Using radiography, which of the following makes IP a defect on a 3 OD pipe sch40 with a wall thickness of 1/2.

  • a individual IP of 4/8
  • a indication of IP of 1/16, 1/4
  • a indication of IP of 1/16, 5/32 , 3/16
  • a indication of IP of 2/8 , 1/2 , 1/16 (correct)

Using radiography, which of the following makes IP a defect on a 14” length of weld on a 14” OD Pipe.

  • a individual IP of 4/8
  • a indication of IP of 1/16, 1/4
  • a indication of IP of 1/16, 5/32 , 5/16
  • a indication of IP of 2/8 , 1/2 , 5/16 (correct)

Using radiography, which of the following makes IP a defect on a 3.5” OD Pipe.

<p>None of the above. (D)</p> Signup and view all the answers

Using radiography, which of the following makes IPD a defect on a 3.5” OD Pipe.

<p>a indication of IPD of 2” 1/16 (A)</p> Signup and view all the answers

Using radiography, which of the following makes IPD a defect on a 6” OD Pipe.

<p>a indication of IPD of 1” , 1/2” and 2” (B)</p> Signup and view all the answers

Using radiography, which of the following makes ICP a defect on a 8” OD Pipe.

<p>All of the above (D)</p> Signup and view all the answers

Using radiography, which of the following makes IPD a defect on a 2.5” OD Sch80 Pipe with a wall thickness of 1/4.

<p>None of the above. (D)</p> Signup and view all the answers

Using radiography, which of the following makes IFD a defect on a 2.5” OD Sch80 Pipe with a wall thickness of 1/4.

<p>a indication of IFD of 1/8, 1/2 ,1/16 (A)</p> Signup and view all the answers

Using radiography, which of the following makes IFD a defect on a 2.5” OD Sch80 Pipe with a wall thickness of 1/4.

<p>a indication of IFD of 2/8, 1/2 (B)</p> Signup and view all the answers

Using radiography, which of the following makes IP defect on a 8” OD Sch80 Pipe with a wall thickness of 1/4

<p>an indication of IP of 1” 1/16 (A)</p> Signup and view all the answers

Using radiography, which of the following makes IF a defect on a 8” OD Sch80 Pipe with a wall thickness of 1/4.

<p>None of the above (D)</p> Signup and view all the answers

Using radiography, which of the following makes IC a defect on a 8” OD Sch80 Pipe with a wall thickness of 1/4 & 1/2

<p>2 density reading of 1/8, &amp; 1/2 (C)</p> Signup and view all the answers

Using radiography, which of the following makes a defect on a 8” OD Sch80 Pipe with a wall thickness of 1/4.

<p>a indication of IP of 5/8” and 9/16” (C)</p> Signup and view all the answers

Using radiography, which of the following makes IF a defect on a 2.5” OD Sch80 Pipe with a wall thickness of 1/4.

<p>a indication of IF of 6/8” (B)</p> Signup and view all the answers

Using radiography, which of the following makes IP unacceptable for a 8” OD Pipe.

<p>None of the above (D)</p> Signup and view all the answers

Using radiography, which of the following makes IFD a defect on a 24” OD Sch80 Pipe with a wall thickness of 1/4.

<p>indication of IFD of 1/2, 3/8, 2&quot; (C)</p> Signup and view all the answers

Radiography picked up a groove melted into the parent material adjacent to the toe of the weld and left unfilled by weld metal measured 1 1/2" with a depth of 1/64 on a 2.5" OD pipe and a wall thickness of 1/4. is the weld acceptable?

<p>Unacceptable, (@)</p> Signup and view all the answers

A Weld was made on a 4" OD PIPE with a surface imperfection of 3/4, 1", and 1/8" between the weld metal and the base material that is open to the surface. What is the acceptable amount?

<p>A single indication of 3/4 (C)</p> Signup and view all the answers

The elongated linear porosity that occurs in the root bead should not exceed

<p>1&quot; (B)</p> Signup and view all the answers

Multiple indications of incomplete filling of the weld root were measured by radiography as 1/4 and 3/8 on a 2.5" OD Pipe.

<p>Acceptable because it doesn't exceed 8% of the weld length (C)</p> Signup and view all the answers

A Weld was made on a 2.5" OD PIPE with a surface imperfection of 1", and 1/8" between the weld metal and the base material that is open to the surface. Is this acceptable for radiography

<p>Unacceptable (A)</p> Signup and view all the answers

A Weld was made on a 6" OD Pipe, using RT, it is Unclear on the amount of imperfections. what should the RT Tech do.

<p>Use a Different NDT Method, (A)</p> Signup and view all the answers

Flashcards

Interruption of Penetration (IP) Defect on 6" Weld, 8" OD Pipe

A defect in a weld where the penetration of the weld metal is less than 25% of the required depth for a 6-inch weld on an 8-inch OD pipe.

IP Defect on 3" OD Pipe, 1/2" Wall Thickness

A defect occurs when the penetration of the weld is less than 25% of the required depth on a 3-inch OD pipe with a 1/2-inch wall thickness.

IP Defect on 14" Length of Weld, 14" OD Pipe

A 14-inch length of weld on a 14-inch OD pipe is considered defective when the penetration of the weld is less than 25% of the required depth.

IP Defect on 3.5" OD Pipe

This defect occurs when the penetration of the weld is less than 25% of the required depth on a 3.5-inch OD pipe.

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Incomplete Penetration (IPD) Defect on 3.5" OD Pipe

A defect arises when a weld's penetration is less than 25% of the required depth on a 3.5-inch OD pipe.

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IPD Defect on 6" OD Pipe

A defect occurs when the penetration of the weld is less than 25% of the required depth on a 6-inch OD pipe.

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Incomplete Penetration (ICP) Defect on 8" OD Pipe

A defect occurs when the penetration of the weld is less than 25% of the required depth on an 8-inch OD pipe.

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IPD Defect on 2.5" OD Sch80 Pipe, 1/4" Wall Thickness

This defect occurs when the penetration of the weld is less than 25% of the required depth on a 2.5-inch OD Sch80 pipe with a 1/4-inch wall thickness.

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Incomplete Fusion (IFD) Defect on 2.5" OD Sch80 Pipe, 1/4" Wall Thickness

This defect is considered present when the fusion of the weld is less than 25% of the required depth on a 2.5-inch OD Sch80 pipe with a 1/4-inch wall thickness.

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IFD Defect on 2.5" OD Sch80 Pipe, 1/4" Wall Thickness

A defect arises if the fusion of the weld is less than 25% of the required depth on a 2.5-inch OD Sch80 pipe with a 1/4-inch wall thickness.

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IP Defect on 8" OD Sch80 Pipe, 1/4" Wall Thickness

A defect occurs when the penetration of the weld is less than 25% of the required depth on an 8-inch OD Sch80 pipe with a 1/4-inch wall thickness.

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Incomplete Fusion (IF) Defect on 8" OD Sch80 Pipe, 1/4" Wall Thickness

This defect arises if the fusion of the weld is less than 25% of the required depth on an 8-inch OD Sch80 pipe with a 1/4-inch wall thickness.

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Incomplete Crater (IC) Defect on 8" OD Sch80 Pipe, 1/4" & 1/2" Wall Thickness

This defect is considered present on an 8-inch OD Sch80 pipe with a 1/4 or 1/2-inch wall thickness if the disruption in the weld is 25% or more.

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Interruption of Fusion (IF) Defect on 2.5" OD Sch80 Pipe, 1/4" Wall Thickness

This defect occurs when the fusion of the weld is less than 25% of the required depth on a 2.5-inch OD Sch80 pipe with a 1/4-inch wall thickness.

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Study Notes

Defect Criteria for Radiography

  • Interruption of Penetration (IP) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 6” weld on an 8” OD pipe.
  • Interruption of Penetration (IP) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 3” OD pipe with a 1/2 wall thickness.
  • Interruption of Penetration (IP) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 14” length of weld on a 14” OD pipe.
  • Interruption of Penetration (IP) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 3.5” OD pipe.
  • Incomplete Penetration (IPD) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 3.5” OD pipe.
  • Incomplete Penetration (IPD) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 6” OD pipe.
  • Incomplete Penetration (ICP) is considered a defect if it disrupts the penetration of the weld by 25% or more on an 8” OD pipe.
  • Incomplete Penetration (IPD) is considered a defect if it disrupts the penetration of the weld by 25% or more on a 2.5” OD Sch80 pipe with a 1/4 wall thickness.
  • Incomplete Fusion (IFD) is considered a defect if it disrupts the fusion of the weld by 25% or more on a 2.5” OD Sch80 pipe with a 1/4 wall thickness.
  • Incomplete Fusion (IFD) is considered a defect if it disrupts the fusion of the weld by 25% or more on a 2.5” OD Sch80 pipe with a 1/4 wall thickness.
  • Interruption of Penetration (IP) is considered a defect if it disrupts the penetration of the weld by 25% or more on an 8” OD Sch80 pipe with a 1/4 wall thickness.
  • Incomplete Fusion (IF) is considered a defect if it disrupts the fusion of the weld by 25% or more on an 8” OD Sch80 pipe with a 1/4 wall thickness.
  • Incomplete Crater (IC) is considered a defect on an 8” OD Sch80 pipe with a 1/4 & 1/2 wall thickness if it disrupts the weld by 25% or more.
  • Interruption of Fusion (IF) is considered a defect if it disrupts the fusion of the weld by 25% or more on a 2.5” OD Sch80 pipe with a 1/4 wall thickness.

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