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Strength-of-materials Questions Set 31:

Quiz Mode

What is the unit for bulk modulus?

N/mm^2

mm^2

mm^3

Solution:

What is the dimension of strain?

Dimensionless

LT⁻²

N/m²

Solution:

What is the vertical distance between the axis of the beam before and after loading at a point called?

Deflection

Slope

Deformation

None of the above

Solution:

When the strain in a material increases with time under sustained constant stress, the phenomenon is known as

Strain hardening

Creep

Hysteresis

Viscoelasticity

Solution:

What is the relationship between the modulus of elasticity (E), modulus of rigidity (G), and bulk modulus (K)?

3 KG / (3K + G)

9 KG / (3K + G)

K + G / (3K + G)

3 KG / (9K + G)

Solution:

A round steel rod of 100 mm diameter is bent into an arc of radius 100 m. What is the maximum stress in the rod? Take E = 2 × 10⁵ N/mm².

150 N/mm²

200 N/mm²

100 N/mm²

125 N/mm²

Solution:

Consider the following data:

σ_x = 60 MPa

τ_xy = 5 MPa

Radius of Mohr's circle = 10

What is the correct value of σ_y for the given plain stress condition in MPa? (3^1/2 = 1.7)

None of the above

77 MPa

53 MPa

47 MPa

Solution:

A torsion bar of 30 mm diameter initially produces a twist of 4 minutes. If the diameter of the torsion bar is then reduced to 15 mm, what would be the angle of twist for the same torque?

16 minutes

8 minutes

2 minutes

1 minute

Solution:

Given a bar with a length of L that tapers uniformly from a diameter of 1.2D at one end to 0.8D at the other end, calculate the percentage error in the computed elongation when using the mean diameter D to calculate the elongation due to axial pull.

3.2 %

3.6 %

4.2 %

4.8 %

Solution:

Consider the situation of a cylindrical block supporting a structure and under compressive loading. The cylindrical block is assumed to follow the Euler's law of buckling. Where is the point on the cylindrical block that has the highest probability of buckling?

Can't say

Point of maximum moment of inertia

Point of minimum moment of inertia

Is independent of moment of inertia

Strength-of-materials Questions Set 31:

What is the unit for bulk modulus?

Solution:

What is the dimension of strain?

Solution:

What is the vertical distance between the axis of the beam before and after loading at a point called?

Solution:

When the strain in a material increases with time under sustained constant stress, the phenomenon is known as

Solution:

What is the relationship between the modulus of elasticity (E), modulus of rigidity (G), and bulk modulus (K)?

Solution:

A round steel rod of 100 mm diameter is bent into an arc of radius 100 m. What is the maximum stress in the rod? Take E = 2 × 10⁵ N/mm².

Solution:

Consider the following data:

σ_x = 60 MPa

τ_xy = 5 MPa

Radius of Mohr's circle = 10

What is the correct value of σ_y for the given plain stress condition in MPa? (3^1/2 = 1.7)

Solution:

A torsion bar of 30 mm diameter initially produces a twist of 4 minutes. If the diameter of the torsion bar is then reduced to 15 mm, what would be the angle of twist for the same torque?

Solution:

Given a bar with a length of L that tapers uniformly from a diameter of 1.2D at one end to 0.8D at the other end, calculate the percentage error in the computed elongation when using the mean diameter D to calculate the elongation due to axial pull.

Solution:

Consider the situation of a cylindrical block supporting a structure and under compressive loading. The cylindrical block is assumed to follow the Euler's law of buckling. Where is the point on the cylindrical block that has the highest probability of buckling?

Solution:

Related Question Sets:

Related Topics:

Strength-of-materials Questions Set 31:

What is the unit for bulk modulus?

Solution:

What is the dimension of strain?

Solution:

What is the vertical distance between the axis of the beam before and after loading at a point called?

Solution:

When the strain in a material increases with time under sustained constant stress, the phenomenon is known as

Solution:

What is the relationship between the modulus of elasticity (E), modulus of rigidity (G), and bulk modulus (K)?

Solution:

A round steel rod of 100 mm diameter is bent into an arc of radius 100 m. What is the maximum stress in the rod? Take E = 2 × 105 N/mm².

Solution:

Consider the following data: σx = 60 MPa τxy = 5 MPa Radius of Mohr's circle = 10 What is the correct value of σy for the given plain stress condition in MPa? (31/2 = 1.7)

Solution:

A torsion bar of 30 mm diameter initially produces a twist of 4 minutes. If the diameter of the torsion bar is then reduced to 15 mm, what would be the angle of twist for the same torque?

Solution:

Given a bar with a length of L that tapers uniformly from a diameter of 1.2D at one end to 0.8D at the other end, calculate the percentage error in the computed elongation when using the mean diameter D to calculate the elongation due to axial pull.

Solution:

Consider the situation of a cylindrical block supporting a structure and under compressive loading. The cylindrical block is assumed to follow the Euler's law of buckling. Where is the point on the cylindrical block that has the highest probability of buckling?

Solution:

Related Question Sets:

Related Topics:

A round steel rod of 100 mm diameter is bent into an arc of radius 100 m. What is the maximum stress in the rod? Take E = 2 × 10⁵ N/mm².

Consider the following data:

σ_x = 60 MPa

τ_xy = 5 MPa

Radius of Mohr's circle = 10

What is the correct value of σ_y for the given plain stress condition in MPa? (3^1/2 = 1.7)