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Which sign convention is commonly used for shear stress in the strength of materials?

53. Which sign convention is commonly used for shear stress in the strength of materials?

1. Positive when in compression, negative when in tension
2. Positive when in tension, negative when in compression
3. Always negative
4. Always positive

Answer

The correct answer is: B) Positive when in tension, negative when in compression

Explanation

Shear stress conventionally follows the sign convention where it's positive when in tension and negative when in compression.