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Supplementary ndt practice questions

32 questions from the welding symbols and blueprints practice test.

Supplementary ndt practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

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Sample questions

A fillet weld symbol has an arc drawn against its sloped side, curving in toward the triangle. What face contour is required?

  1. Concave
  2. Convex
  3. Flat
  4. Flush with the plate
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A. Concave

An arc that dips in toward the weld symbol is the concave contour symbol. An arc bulging outward is convex, and a straight line is flat.

Reference: AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examination: contour symbols

The letter C is shown beside the contour symbol on a welding symbol. How is the weld to be finished?

  1. By cutting
  2. By chipping
  3. By coating
  4. By cold working
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B. By chipping

Finish letters identify the method: C chipping, G grinding, H hammering, M machining, R rolling, and U for an unspecified method. C does not stand for cutting or coating.

Reference: AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examination: finish symbols

A groove welding symbol has a flush contour symbol with the letter M beside it. What is required?

  1. Make the weld by a mechanized process
  2. Examine the weld by magnetic particle testing
  3. Melt through the root of the joint
  4. Machine the weld face flush
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D. Machine the weld face flush

M next to a contour symbol is the finishing method, machining. Magnetic particle examination is written MT and appears as a nondestructive examination symbol, and melt-through has its own filled half-circle symbol.

Reference: AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examination: finish symbols

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