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Strength-of-materials Questions Set 26:

Quiz Mode

What unit is used to measure strain?

m/m^2

m/m

cm/m

Solution:

The S.I. unit of polar modulus for a solid circular shaft is:

m^2

mm^2

mm^3

mm^4

Solution:

A bar of length L metres extends by 4l mm under a tensile force of P. The strain produced in the bar is

0.001

0.002

0.003

0.004

Solution:

What is called the maximum energy that a given component can absorb without undergoing permanent deformation up to the elastic limit?

Proof Resilience

Resilience

Hardness

Toughness

Solution:

When the temperature of a body decreases and increases, what are the respective stresses developed in the body?

Tensile, compressive

Thermal, thermal

Compressive, tensile

Mechanical, mechanical

Solution:

A steel strip of 30 mm thickness and 60 mm width is bent around a circular drum of 3.6 m diameter. Calculate the maximum stress. [Take Young's modulus = 200 kN/m²].

4,666.67 N/mm²

1,666.67 N/mm²

5,411.76 N/mm²

2,341.76 N/mm²

Solution:

Calculate the external diameter (twice that of its internal diameter) of the shaft which is subjected to a torque of 120 kN-m, a bending moment of 220 kN-m, and a maximum shear stress of 110 N/mm².

555.50 mm

670.77 mm

570.24 mm

510.20 mm

Solution:

In a strength-based design of a shaft, the maximum shear stress induced in the shaft is 200 N/mm². If the polar moment of inertia is 150 mm⁴ and the twisting moment induced is 400 Nmm, find the radius of the shaft (in mm).

75 mm

80 mm

65 mm

40 mm

Solution:

The normal stresses on two perpendicular planes through a point in a stressed material are 80 MPa (tensile) and 20 MPa (tensile). A shear stress of 40 MPa is also acting on these planes. What is the value of the maximum stress at the point?

50 MPa

40 MPa

Zero

60 MPa

Solution:

Homologous temperature is defined as the ratio of the testing temperature to the melting temperature of a material. What is the value of this temperature ratio for a material to start creeping?

Melting temperature / Boiling temperature; <0

Boiling temperature / Melting temperature; =0

Testing temperature / Melting temperature; >0.5

Melting temperature / Testing temperature; >0.5

Strength-of-materials Questions Set 26:

What unit is used to measure strain?

Solution:

The S.I. unit of polar modulus for a solid circular shaft is:

Solution:

A bar of length L metres extends by 4l mm under a tensile force of P. The strain produced in the bar is

Solution:

What is called the maximum energy that a given component can absorb without undergoing permanent deformation up to the elastic limit?

Solution:

When the temperature of a body decreases and increases, what are the respective stresses developed in the body?

Solution:

A steel strip of 30 mm thickness and 60 mm width is bent around a circular drum of 3.6 m diameter. Calculate the maximum stress. [Take Young's modulus = 200 kN/m²].

Solution:

Calculate the external diameter (twice that of its internal diameter) of the shaft which is subjected to a torque of 120 kN-m, a bending moment of 220 kN-m, and a maximum shear stress of 110 N/mm².

Solution:

In a strength-based design of a shaft, the maximum shear stress induced in the shaft is 200 N/mm². If the polar moment of inertia is 150 mm⁴ and the twisting moment induced is 400 Nmm, find the radius of the shaft (in mm).

Solution:

The normal stresses on two perpendicular planes through a point in a stressed material are 80 MPa (tensile) and 20 MPa (tensile). A shear stress of 40 MPa is also acting on these planes. What is the value of the maximum stress at the point?

Solution:

Homologous temperature is defined as the ratio of the testing temperature to the melting temperature of a material. What is the value of this temperature ratio for a material to start creeping?

Solution:

Related Question Sets:

Related Topics:

Strength-of-materials Questions Set 26:

What unit is used to measure strain?

Solution:

The S.I. unit of polar modulus for a solid circular shaft is:

Solution:

A bar of length L metres extends by 4l mm under a tensile force of P. The strain produced in the bar is

Solution:

What is called the maximum energy that a given component can absorb without undergoing permanent deformation up to the elastic limit?

Solution:

When the temperature of a body decreases and increases, what are the respective stresses developed in the body?

Solution:

A steel strip of 30 mm thickness and 60 mm width is bent around a circular drum of 3.6 m diameter. Calculate the maximum stress. [Take Young's modulus = 200 kN/m²].

Solution:

Calculate the external diameter (twice that of its internal diameter) of the shaft which is subjected to a torque of 120 kN-m, a bending moment of 220 kN-m, and a maximum shear stress of 110 N/mm².

Solution:

In a strength-based design of a shaft, the maximum shear stress induced in the shaft is 200 N/mm2. If the polar moment of inertia is 150 mm4 and the twisting moment induced is 400 Nmm, find the radius of the shaft (in mm).

Solution:

The normal stresses on two perpendicular planes through a point in a stressed material are 80 MPa (tensile) and 20 MPa (tensile). A shear stress of 40 MPa is also acting on these planes. What is the value of the maximum stress at the point?

Solution:

Homologous temperature is defined as the ratio of the testing temperature to the melting temperature of a material. What is the value of this temperature ratio for a material to start creeping?

Solution:

Related Question Sets:

Related Topics:

In a strength-based design of a shaft, the maximum shear stress induced in the shaft is 200 N/mm². If the polar moment of inertia is 150 mm⁴ and the twisting moment induced is 400 Nmm, find the radius of the shaft (in mm).