Module 1 (2)

Module 1 (2)

University

10 Qs

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Module 1 (2)

Module 1 (2)

Assessment

Quiz

Other

University

Practice Problem

Hard

Created by

Mechanics of Materials

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A steel bar of 40 mm × 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2 m and E = 200 GPa, the elongation of the bar will be:

1.25 mm

2.70 mm

4.05 mm

5.40 mm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In terms of Poisson's ratio (μ) the ratio of Young's Modulus (E) to Shear Modulus (G) of elastic materials is

2(1+ μ)

2(1-μ)

0.5(1+μ)

0.5(1-μ)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The relationship between Young's modulus (E), Bulk modulus (K) and Poisson's ratio (μ) is given by:

E= 3 K (1-2μ)

K= 3E(1-2μ)

E= 3K(1-μ)

K= 3E(1-μ)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true (μ= Poisson's ratio)

0 < μ < 1/2

1 < μ < 0  

1 < μ < -1

2 < μ < -2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For a linearly elastic, isotropic and homogeneous material, the number of elastic constants required to relate stress and strain is:

2

3

4

6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The number of elastic constants for a completely anisotropic elastic material which follows Hooke's law is:

3

4

21

25

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An orthotropic material, under plane stress condition will have---- independent elastic constants

15

4

5

9

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