alleryStart learning →Working stress (allowable stress) is obtained as:
AYield (or ultimate) stress DIVIDED by factor of safety
BNo formula
CMultiplied yield by FS
DAdd safety to yield
Answer & Solution
Correct answer: A. Yield (or ultimate) stress DIVIDED by factor of safety
Working stress = yield/FS or UTS/FS.
Factor of safety > 1 provides margin.
**Typical FS:** steel against yield 1.5-1.67
concrete against compressive 3-4. Higher for brittle materials or critical structures.
Keep practising Strength of Materials
Browse all Strength of Materials questions for B.Tech Civil, or explore more Civil Engineering topics.
Related questions
Modulus of elasticity for concrete (per IS 456):Yield strength of structural mild steel (IS 226):For a thin sphere under internal pressure p:For thin cylinder under internal pressure p (diameter d, thickness t):For pure shear (σ_x = σ_y = 0, τ_xy = τ), principal stresses are:Maximum shear stress occurs on planes oriented at ___ to principal planes:Principal planes are characterized by:Slenderness ratio of a column is: