When does the weld seam test apply?

After the joining of metallic materials

During the joining of metallic materials

Before the joining of metallic materials

After the joining of metallic materials

Which isn't ultrasound control's advantage?

the training for this method is extensive

the measuring device is small and easily portable

the testing doesn't need additional protection

Why do you apply magnetic particles to a material?

To magnetize the nonmagnetic material

To make the inspection go easily

To prevent the material from cracking

Which statement about weld seam testing is true?

There are destructive and nondestructive methods.

There are destructive, nondestructive and semi-destructive methods.

There are only nondestructive methods.

There are only destructive methods.

There are destructive and nondestructive methods.

What Do You Know About Weld Seam Testing?

1.

When does the weld seam test apply?
- A.
  
  During the joining of metallic materials
- B.
  
  Before the joining of metallic materials
- C.
  
  After the joining of metallic materials
- D.
  
  After the product's finished
Correct Answer
C. After the joining of metallic materials

Explanation
The weld seam test applies after the joining of metallic materials. This is because the purpose of the test is to ensure the quality and integrity of the weld seam. By conducting the test after the joining process, any defects or weaknesses in the weld can be identified and addressed before the product is considered finished. Conducting the test before or during the joining process would not provide an accurate assessment of the weld seam's quality.

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2.

Which method isn't included in the Weld Seam inspection?
- A.
  
  Thickness testing
- B.
  
  Visual inspection
- C.
  
  Magnetic particle testing
- D.
  
  Vacuum testing
Correct Answer
A. Thickness testing

Explanation
Thickness testing is not included in the Weld Seam inspection. This method involves measuring the thickness of the material being inspected, which is not directly related to examining the quality of the weld seam. Visual inspection, magnetic particle testing, and vacuum testing are all commonly used methods to assess the integrity and quality of weld seams.

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3.

Which defect can't be detected by a weld seam inspection?
- A.
  
  Faulty weld toe
- B.
  
  Incomplete root penetration
- C.
  
  Unfilled end craters
- D.
  
  Cracks after the seam
Correct Answer
D. Cracks after the seam

Explanation
Cracks after the seam cannot be detected by a weld seam inspection because the inspection is performed on the visible surface of the seam. Cracks that occur after the seam has been completed may not be visible on the surface and therefore cannot be detected during the inspection process.

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4.

Which techniques do you use when running a seam weld test?
- A.
  
  Detailed techniques
- B.
  
  Computer techniques
- C.
  
  Destructive techniques
- D.
  
  Non-destructive techniques
Correct Answer
D. Non-destructive techniques

Explanation
When running a seam weld test, non-destructive techniques are used. These techniques involve examining the weld without causing any damage to the material or structure being tested. Common non-destructive techniques include visual inspection, ultrasonic testing, radiography, and magnetic particle testing. These methods allow for thorough evaluation of the weld's quality and integrity without compromising its structural integrity.

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5.

Which non-destructive method isn't a part of a seam and weld test?
- A.
  
  Visual control
- B.
  
  Dimensional control
- C.
  
  Computer control
- D.
  
  Ultrasound control
Correct Answer
C. Computer control

Explanation
Computer control is not a part of a seam and weld test because it does not involve any physical inspection or measurement of the seam or weld. Instead, computer control refers to the use of automated systems to regulate and monitor the welding process itself, ensuring that the correct parameters are maintained. This method is typically used to control factors such as welding speed, heat input, and electrode positioning, but it does not directly assess the quality or integrity of the seam or weld.

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6.

Which isn't ultrasound control's advantage?
- A.
  
  The training for this method is extensive
- B.
  
  Thickness of an object
- C.
  
  The measuring device is small and easily portable
- D.
  
  The testing doesn't need additional protection
Correct Answer
A. The training for this method is extensive

Explanation
Ultrasound control's advantage lies in its ability to measure the thickness of an object accurately and easily. Additionally, the measuring device used for ultrasound control is small and easily portable, making it convenient to use in various settings. Moreover, ultrasound testing doesn't require additional protection. However, the training for this method is extensive, which means that it may take a significant amount of time and effort to become proficient in using ultrasound control effectively.

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7.

Why do you apply magnetic particles to a material?
- A.
  
  To magnetize the nonmagnetic material
- B.
  
  To find cracks on the surface
- C.
  
  To make the inspection go easily
- D.
  
  To prevent the material from cracking
Correct Answer
B. To find cracks on the surface

Explanation
Magnetic particles are applied to a material to find cracks on the surface. When the particles are applied and a magnetic field is applied to the material, the particles will align themselves along the cracks, making them visible and easier to detect. This method is commonly used in non-destructive testing to identify surface cracks in materials.

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8.

Which frequency does the Ultrasound method use?
- A.
  
  0,1 – 10 MHz.
- B.
  
  5 – 10 MHz.
- C.
  
  2,5 – 10 MHz.
- D.
  
  0,5 – 10 MHz.
Correct Answer
D. 0,5 – 10 MHz.

Explanation
Ultrasound is a medical imaging technique that uses sound waves to produce images of the inside of the body. The frequency range used in ultrasound is typically between 0.5 and 10 MHz. This frequency range allows for better penetration into the body and provides clearer images of the internal organs and tissues. Lower frequencies are used for deeper imaging, while higher frequencies are used for more superficial imaging. Therefore, the correct answer is 0.5 – 10 MHz.

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9.

Which is the only method that can see and predict the cause and the place of a mistake?
- A.
  
  Radiographic control
- B.
  
  Dimensional control
- C.
  
  Visual method
- D.
  
  Acoustic emission
Correct Answer
C. Visual method

Explanation
The visual method is the only method that allows one to actually see and observe the cause and place of a mistake. Radiographic control involves the use of X-rays or other imaging techniques to detect flaws or defects, but it may not always provide a clear picture of the cause and location of the mistake. Dimensional control focuses on measuring and verifying the dimensions of a product or component, but it does not directly reveal the cause of a mistake. Acoustic emission involves the detection of sound waves emitted by a material under stress, but it may not always accurately pinpoint the cause and place of a mistake. Therefore, the visual method is the most reliable method for identifying and predicting the cause and place of a mistake.

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10.

Which statement about weld seam testing is true?
- A.
  
  There are destructive, nondestructive and semi-destructive methods.
- B.
  
  There are only nondestructive methods.
- C.
  
  There are only destructive methods.
- D.
  
  There are destructive and nondestructive methods.
Correct Answer
D. There are destructive and nondestructive methods.

Explanation
Weld seam testing involves different methods to assess the quality of the weld. Destructive methods refer to techniques that involve damaging or destroying the welded sample in order to evaluate its integrity. On the other hand, nondestructive methods allow for the inspection of the weld without causing any damage. The correct answer states that both destructive and nondestructive methods are used in weld seam testing, which implies that there is a range of techniques available for assessing weld quality.

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