Test: Strain Energy & Resilience Level - 2 - Mechanical Engineering MCQ

The maximum stress induced in a body if the load ‘P’ is applied with impact upon an area of cross section ‘A’ is (When h = Height through which the load falls, E = Modulus of rigidity, L = Length of the body)

Which of the following gives the correct expression for strain energy stored in a beam of length L and of uniform cross section having moment of inertia ‘I’ and subjected to constant bending moment M?

A bar having length L and uniform cross section with area A is subjected to both tensile force P and torque T. If G is the shear modulus and E is the Young’s modulus, the internal strain energy stored in the bar is

An axial load of 100kN is applied onto a bar of length 3 m and cross-sectional area of 100 mm2. If E = 200 kN/mm² the total strain energy in the bar is equal to

A circular bar L (long) in m and d (diameter) in m is subjected to tensile force of F in kN. Then the strain energy, U will be (Where, E is the modulus of elasticity in kN.m²)

The strain energy in bar of 20 mm diameter, 1.0 m length, and young’s modulus 200.0 GPa under an axial force of 100.0 N is

If σ and E for a body of volume 2 × 105 mm³ are 10 N/mm² and 1 × 10⁵ N/mm², Resilience of the body is