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A single parallel fillet weld of total length L and weld size h subjected to a tensile load P, will have what design stress? 
  • a)
    Tensile and equal to P/0.707Lh
  • b)
    Tensile and equal to P/Lh
  • c)
    Shear and equal to P/0.707Lh
  • d)
    Shear and equal to P/Lh
Correct answer is option 'C'. Can you explain this answer?
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Explanation:

When a parallel fillet weld is subjected to a tensile load, it experiences both shear and tensile stresses. The design stress is the maximum stress that the weld can withstand without failure.

Tensile and equal to P/0.707Lh:
This option is incorrect because it suggests that the design stress is equal to the tensile load P divided by 0.707Lh. This formula does not take into account the shear stress component of the weld.

Tensile and equal to P/Lh:
This option is incorrect because it suggests that the design stress is equal to the tensile load P divided by Lh. This formula does not take into account the shear stress component of the weld.

Shear and equal to P/0.707Lh:
This option is correct because it suggests that the design stress is equal to the tensile load P divided by 0.707Lh. This formula takes into account both the shear and tensile stress components of the weld. The factor of 0.707 is the ratio of the shear stress to the tensile stress in a fillet weld.

Shear and equal to P/Lh:
This option is incorrect because it suggests that the design stress is equal to the tensile load P divided by Lh. This formula does not take into account the shear stress component of the weld.

In conclusion:
The correct answer is option C: Shear and equal to P/0.707Lh. This formula considers both the shear and tensile stress components of the weld and provides the maximum stress that the weld can withstand without failure.
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A single parallel fillet weld of total length L and weld size h subjected to a tensile load P, will have what design stress?a)Tensile and equal to P/0.707Lhb)Tensile and equal to P/Lhc)Shear and equal to P/0.707Lhd)Shear and equal to P/LhCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A single parallel fillet weld of total length L and weld size h subjected to a tensile load P, will have what design stress?a)Tensile and equal to P/0.707Lhb)Tensile and equal to P/Lhc)Shear and equal to P/0.707Lhd)Shear and equal to P/LhCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single parallel fillet weld of total length L and weld size h subjected to a tensile load P, will have what design stress?a)Tensile and equal to P/0.707Lhb)Tensile and equal to P/Lhc)Shear and equal to P/0.707Lhd)Shear and equal to P/LhCorrect answer is option 'C'. Can you explain this answer?.
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