Multiple choice general knowledge science & technology

If a Nut is failed due to shearing of threads. What is the shear area if the major diameter of thread is 12 mm and thickness of the nut is 10 mm?

  1. 12x10

  2. 3.14x12x10

  3. (3.14x12x12)/4

  4. ((3.14x12x12)/4) x 10
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For a nut failing due to thread shear, the shear area is calculated as the circumference of the thread (pi x d) multiplied by the thickness of the nut (t). So A_shear = pi x d x t = 3.14 x 12 x 10 mm^2. This represents the cylindrical surface area of the threads that shears. Options A, C, and D use incorrect formulas.

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