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Q: The effective length of the fillet weld is ______.
  • A. 0.7 x total length
  • B. Total length – 2 x weld size
  • C. Total length – √2 weld size
  • D. Total length –2 x throat size
Correct Answer: Option B - Effective length is the length of the fillet weld for which the specified size and throat thickness of weld exist. [effective length = Total length-2xweld size] • It is considered equal to it's overall length minus twice the weld size. • The deduction is made to allow for craters to be formed at the ends of welded length. • Throat of fillet is the weakest section in a fillet weld.
B. Effective length is the length of the fillet weld for which the specified size and throat thickness of weld exist. [effective length = Total length-2xweld size] • It is considered equal to it's overall length minus twice the weld size. • The deduction is made to allow for craters to be formed at the ends of welded length. • Throat of fillet is the weakest section in a fillet weld.

Explanations:

Effective length is the length of the fillet weld for which the specified size and throat thickness of weld exist. [effective length = Total length-2xweld size] • It is considered equal to it's overall length minus twice the weld size. • The deduction is made to allow for craters to be formed at the ends of welded length. • Throat of fillet is the weakest section in a fillet weld.