The tensile strength of the welded joint for double fillet is

where s = leg or size of the weld,

l = length of the weld and

σt = allowable tensile stress for weld metal.

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WBPSC JE Mechanical 2018 Official Paper
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  1. 0.5s.l.σt
  2. s.l.σt
  3. √2s.l.σt
  4. 2s.l.σt

Answer (Detailed Solution Below)

Option 3 : √2s.l.σt
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Detailed Solution

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Concept: 

Strength of Transverse Fillet Welded Joints

Tensile strength of the joint for single fillet weld:

\(P=0.707\times s\times l\times σ_t\)

Tensile strength of the joint for double fillet weld:

\(P=1.414\times s\times l\times σ_t\)

where l = Length of weld, s = Size of weld.

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