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GPSC AE CE 2018 Official Paper (Part B - Civil)

Option 1 : 0.5

ST 1: General Awareness

1596

20 Questions
20 Marks
16 Mins

**Explanation**

We know, maximum shear stress is given by,

The maximum shear stress is equal to one-half the difference of the principal stresses.

\({\tau _{max}} = \frac{{{\sigma _x} - {\sigma _y}}}{2}\)

For uniaxial loading,

\({\tau _{max}} = \frac{{{\sigma _x} - {\sigma _y}}}{2} = \frac{{\sigma - 0}}{2} = 0.5\sigma \)

Hence,

Option (a) is correct.