**
Structures designed using elastic analysis may be ______ than those designed using plastic analysis.**

**(A)**Lighter

**(B)**Heavier

**(C)**Of same weight

**(D)**Almost half times the weight

**B**

**
Both elastic and plastic methods neglect ________**

**(A)**Live load acting on structure

**(B)**Dead load acting on structure

**(C)**Deformations due to load

**(D)**Influence of stability

**D**

**
What is buckling?**

**(A)**Structural behaviour in which a deformation develops in direction of plane perpendicular to that of load which produced it.

**(B)**Structural behaviour in which a deformation does not develop in direction of plane perpendicular to that of load which produced it.

**(C)**Structural behaviour in which a deformation develop in direction of plane parallel to that of load which produced it.

**(D)**Structural behaviour in which a deformation develops in direction of plane along that of load which produced it.

**A**

**
Which of the following relation about plastic moment is correct?**

**(A)**${\text{M}}_{\mathrm{p}}={\mathrm{Z}}_{\mathrm{p}}/{\mathrm{f}}_{\mathrm{y}}$

**(B)**${\text{M}}_{\mathrm{p}}={\mathrm{Z}}_{\mathrm{p}}+{\mathrm{f}}_{\mathrm{y}}$

**(C)**${\text{M}}_{\mathrm{p}}={\mathrm{Z}}_{\mathrm{p}}{\mathrm{f}}_{\mathrm{y}}$

**(D)**${\text{M}}_{\mathrm{p}}={\mathrm{Z}}_{\mathrm{p}}-{\mathrm{f}}_{\mathrm{y}}$

**C**

**
What is plastic moment of resistance?**

**(A)**Maximum moment in stress strain curve, the point where the curvature can increase indefinitely

**(B)**Maximum moment in stress strain curve, the point where the curvature can decrease indefinitely

**(C)**Minimum moment in stress strain curve, the point where the curvature can increase indefinitely

**(D)**Minimum moment in stress strain curve, the point where the curvature can decrease indefinitely

**A**