Explore topic-wise MCQs in Mechanical Metallurgy.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.

1.

The Prandtl-Reuss stress strain relation equation is used for _____________

A. elastic material
B. ideal Plastic material
C. viscous material
D. elastic-plastic material
Answer» E.
2.

The levy mises stress-strain relation equation is used for _____________

A. elastic material
B. ideal Plastic material
C. viscous material
D. elastic-plastic material
Answer» B. ideal Plastic material
3.

Octahedral stresses are the stresses acting on the faces of a three-dimensional octahedron which has the geometric property that the faces of the planes make equal angles with each of the three principal directions of stresses.

A. True
B. False
Answer» B. False
4.

Von-mises and Tresca yielding criteria applies to both the isotropic and anisotropic materials.

A. True
B. False
Answer» C.
5.

The greatest divergence in predicting the yield stress for distortion between the Tresca s criteria and Von-Mises criteria occurs at __________

A. uniaxial tension/compression
B. balanced biaxial stress
C. pure shear stress
D. always predicts equal stress
Answer» D. always predicts equal stress
6.

The following diagram represents the equation 12+ 32 1 3 = o2 for the von-mises condition.
The plot is known as the yield locus for Von-Mises criteria. Which of the following statement is not correct?

A. n<img alt="The yield locus of Tresca criteria falls outside of Von-Mises criteria in given figure" class="alignnone size-full wp-image-265458" height="344" sizes="(max-width: 523px) 100vw, 523px" src="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-invariant-stress-strain-q3.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-invariant-stress-strain-q3.png 523w, https://www.sanfoundry.com/wp-content/uploads/2020/01/mechanical-metallurgy-questions-answers-element-plasticity-theory-invariant-stress-strain-q3-300x197.png 300w" width="523"/>
B. The yield locus of Tresca criteria falls inside the of the Von-Mises criteria
C. Both the Von-Mises and Tresca s method predicts the same yield stress for uniaxial stress
D. Both the Von-Mises and Tresca s method predicts the same yield stress for balance biaxial stress
E. The yield locus of Tresca criteria falls outside the of the Von-Mises criteria
Answer» E. The yield locus of Tresca criteria falls outside the of the Von-Mises criteria
7.

For the biaxial plane stress condition, the von Mises yield criteria can be expressed as:
12+ 32 1 3= o2

A. nThe above equation physically represents _________
B. circle
C. straight line
D. ellipse
E. parabola
Answer» D. ellipse
8.

For the biaxial plane stress condition, the von Mises yield criteria can be expressed as ___________
Given that principal stresses are 1, 2, 3 where 2=0 and yield stress is o.

A. <sub>1</sub>+ <sub>3</sub> = <sub>o</sub>
B. <sub>1</sub><sup>2</sup>+ <sub>3</sub><sup>2</sup> <sub>1</sub> <sub>3</sub> = <sub>o</sub><sup>2</sup>
C. <sub>1</sub>+ <sub>3</sub> <sub>1</sub> <sub>3</sub> = <sub>o</sub><sup>2</sup>
D. <sub>1</sub>+ <sub>3</sub> <sub>1</sub> <sub>3</sub> = <sub>o</sub>
Answer» C. <sub>1</sub>+ <sub>3</sub> <sub>1</sub> <sub>3</sub> = <sub>o</sub><sup>2</sup>