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Strength-of-materials Questions Set 25:

Quiz Mode

The resilience of a material is considered when it is subjected to

frequent heat treatment

fatigue

creep

shock loading

Solution:

The formula used to determine the strain energy stored in a uniform bar is:

(σ² AL/ 2E)

(σ E/ 2A)

(σ² AL/ 4E)

(σ L/ 2AE)

Solution:

When a solid cube is subjected to equal normal forces on all its faces, the volumetric strain will be x-times the linear strain in any of the three axes.

x=1

x=2

x=3

x=4

Solution:

A steel bar that is 8 mm long is heated from 10 to 25 degrees Celsius and is free to expand. What type of stress will the bar induce?

Tensile stress

No stress

Compressive stress

Shear stress

Solution:

What is the stress-strain curve?

It is the relationship between stress and strain

It is the percentage of stress and strain

It is the difference between stress and strain

None of the mentioned

Solution:

A point of inflection on a beam's elastic curve occurs when:

All of these

The shear force diagram (SFD) changes sign

The bending moment diagram (BMD) changes sign

The elastic curve changes sign

Solution:

A rod of length L and diameter D is subjected to a tensile load P. Which of the following is sufficient to calculate the resulting change in diameter?

Young's modulus

Shear modulus

Poisson's ratio

Both Young's modulus and Poisson's ratio

Solution:

When a load is applied to a body, which is introduced first: stress or strain?

Strain, as the applied load causes deformation first

Stress, as the load is applied first

Stress, as stress changes the shape of the body

Strain, as it is the dimensionless quantity

Solution:

In the case of impact loading of a member, the impact factor is defined as the ratio of

the equivalent static load due to impact to the static load

None of the above

the maximum variable load to the static load

the equivalent static load due to impact to the maximum variable load

Solution:

Which of the following is true for an Oldham coupling between two shafts?

Torsion load is transferred between the shafts

Torsion load is transferred between the shafts, and rotational motion is transmitted along the shaft axis

Torsion load is transferred between the shafts, and bending load is transferred transversely to the shafts

Rotational motion is transmitted along the shaft axis, and bending load is transferred transversely to the shafts

Solution:

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Strength-of-materials Questions Set 25:

The resilience of a material is considered when it is subjected to

Solution:

The formula used to determine the strain energy stored in a uniform bar is:

Solution:

When a solid cube is subjected to equal normal forces on all its faces, the volumetric strain will be x-times the linear strain in any of the three axes.

Solution:

A steel bar that is 8 mm long is heated from 10 to 25 degrees Celsius and is free to expand. What type of stress will the bar induce?

Solution:

What is the stress-strain curve?

Solution:

A point of inflection on a beam's elastic curve occurs when:

Solution:

A rod of length L and diameter D is subjected to a tensile load P. Which of the following is sufficient to calculate the resulting change in diameter?

Solution:

When a load is applied to a body, which is introduced first: stress or strain?

Solution:

In the case of impact loading of a member, the impact factor is defined as the ratio of

Solution:

Which of the following is true for an Oldham coupling between two shafts?

Solution:

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