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

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

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## 10 Questions MCQ Test Strength of Materials (SOM) - Test: Strain Energy & Resilience Level - 2

Test: Strain Energy & Resilience Level - 2 for Mechanical Engineering 2024 is part of Strength of Materials (SOM) preparation. The Test: Strain Energy & Resilience Level - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Strain Energy & Resilience Level - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Strain Energy & Resilience Level - 2 below.
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Test: Strain Energy & Resilience Level - 2 - Question 1

### Consider the following statements.(P) Hardness is the resistance of a material to indentation.(Q) Elastic modulus is a measure of ductility.(R) Deflection depends on stiffness.(S) The total area under the stress-strain curve is a measure of resilience.Among the above statements, the correct ones are

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 1
Percentage elongation is a measure of ductility. The total area under the stress-strain curve is a measure of modulus of toughness.

Test: Strain Energy & Resilience Level - 2 - Question 2

### Strain energy is used to find

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Test: Strain Energy & Resilience Level - 2 - Question 3

### Which one of the following statements is correct? The work done in stretching an elastic string varies

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 3

Test: Strain Energy & Resilience Level - 2 - Question 4

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)

Test: Strain Energy & Resilience Level - 2 - Question 5

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?

Test: Strain Energy & Resilience Level - 2 - Question 6

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

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 6
Internal strain energy

=

=

Test: Strain Energy & Resilience Level - 2 - Question 7

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

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 7
Axial load, P = 100 × 103N

Length, L = 3000 mm 2

Cross section area, A = 100 mm E = 200 × 103 N/mm2

U =

=

=

= 750000 N­mm

Test: Strain Energy & Resilience Level - 2 - Question 8

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)

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 8

℧ =

=

=

Test: Strain Energy & Resilience Level - 2 - Question 9

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

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 9
Diameter, d = 20 mm

Length, L = 1000 mm

E = 200 × 103 MPa

P = 100N

U =

=

=

U = 0.0796 N­mm

Test: Strain Energy & Resilience Level - 2 - Question 10

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

Detailed Solution for Test: Strain Energy & Resilience Level - 2 - Question 10
σ = 10N/mm2

E = 1 × 105N/mm2

V = 2 × 105N/mm3

U =

U =

= 100 N­mm

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## Strength of Materials (SOM)

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