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Questions and Answers
Who is responsible for developing the ultrasonic testing application technique and approving the testing procedure?
Who is responsible for developing the ultrasonic testing application technique and approving the testing procedure?
Who is authorized to calibrate equipment and interpret the ultrasonic test results?
Who is authorized to calibrate equipment and interpret the ultrasonic test results?
Who is responsible for performing the ultrasonic test and evaluating the results?
Who is responsible for performing the ultrasonic test and evaluating the results?
When is the company required to demonstrate the application of the ultrasonic procedure and systems?
When is the company required to demonstrate the application of the ultrasonic procedure and systems?
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Which essential variables in welding require requalification of the welding operator?
Which essential variables in welding require requalification of the welding operator?
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Which testing records must be maintained for qualified operators?
Which testing records must be maintained for qualified operators?
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Which testing method shall be in accordance with 11.1?
Which testing method shall be in accordance with 11.1?
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What process should be used for automatic welding without filler metal additions?
What process should be used for automatic welding without filler metal additions?
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What must be established and qualified before production welding is started?
What must be established and qualified before production welding is started?
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Which changes require requalification of the welding operator?
Which changes require requalification of the welding operator?
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In accordance with which section should acceptance standards for non-destructive testing (NDT) be?
In accordance with which section should acceptance standards for non-destructive testing (NDT) be?
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Which method should be used for ultrasonic testing?
Which method should be used for ultrasonic testing?
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What is required for welding operators to be qualified?
What is required for welding operators to be qualified?
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What is required to be maintained for qualified operators?
What is required to be maintained for qualified operators?
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Which process should be used for automatic welding without filler metal additions?
Which process should be used for automatic welding without filler metal additions?
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What must be done before production welding is started?
What must be done before production welding is started?
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What is the purpose of destructive testing of the weld sample?
What is the purpose of destructive testing of the weld sample?
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What is the basis for manual ultrasonic testing sensitivity?
What is the basis for manual ultrasonic testing sensitivity?
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What is used for calibration reflectors in automatic ultrasonic testing?
What is used for calibration reflectors in automatic ultrasonic testing?
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What is installed at the weld centerline position for each fill pass required by the welding procedure?
What is installed at the weld centerline position for each fill pass required by the welding procedure?
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What technique is carried out to determine actual full skip distance and refracted angle?
What technique is carried out to determine actual full skip distance and refracted angle?
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What type of testing is performed before ultrasonic testing on both sides of the weld?
What type of testing is performed before ultrasonic testing on both sides of the weld?
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What should the second backwall echo from the reference standard be adjusted to in manual compression wave testing of parent material?
What should the second backwall echo from the reference standard be adjusted to in manual compression wave testing of parent material?
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What is the purpose of ultrasonic testing procedure for production welding?
What is the purpose of ultrasonic testing procedure for production welding?
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What is documented and compared with radiographs during the ultrasonic testing procedure?
What is documented and compared with radiographs during the ultrasonic testing procedure?
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What may be required if there are differences in detection results during ultrasonic testing?
What may be required if there are differences in detection results during ultrasonic testing?
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What requires additional demonstration welds if there are changes in wall thickness, bevel design, acoustic velocity, and welding process?
What requires additional demonstration welds if there are changes in wall thickness, bevel design, acoustic velocity, and welding process?
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What is the basis for destructive testing of the weld sample?
What is the basis for destructive testing of the weld sample?
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Study Notes
Ultrasonic Testing Procedure for Welded Joints in Pipelines
- Changes in wall thickness, bevel design, acoustic velocity, and welding process require additional demonstration welds.
- Radiographs are made of the welds and results are documented.
- Ultrasonic testing procedure is applied within detailed temperature ranges and results are documented and compared with radiographs.
- Differences in detection results are documented and noted.
- Destructive testing of the weld sample may be required to confirm results.
- Ultrasonic testing procedure for production welding is based on its capability to locate imperfections and defects, and determine weld acceptability.
- Manual ultrasonic testing sensitivity is based on a reference standard with specific requirements for notch depth and dimensions.
- For automatic ultrasonic testing, flat bottom holes are machined into the pipe for calibration reflectors.
- Planar reflectors or flat bottom holes are installed at the weld centerline position for each fill pass required by the welding procedure.
- A transfer technique using probes of the same nominal angles and frequencies is carried out to determine actual full skip distance and refracted angle.
- Compression wave testing of parent material on both sides of the weld is performed before ultrasonic testing.
- Manual compression wave testing of parent material is performed with the second backwall echo from the reference standard adjusted to at least 80% of full screen height.
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Description
Test your knowledge of ultrasonic testing procedures for welded joints in pipelines with this quiz. Explore topics such as wall thickness changes, acoustic velocity, destructive testing, and the use of calibration reflectors. See how well you understand the documentation and comparison of results from radiographs and ultrasonic testing.
