MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
Is it possible to determine the principal strains by Mohr’s circle? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The point of intersection of the Mohr’s circle on the x-axis represents principal normal stresses because the shear stress at these points is zero. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Determine the principal normal stress and shear stress for the following case:σx=240 MPaσy=-30 MPaτ= 50 Mpa. |
| A. | σ1=240 MPa, σ2=-30 MPa, τmax=50 MPa |
| B. | σ1=210 MPa, σ2=-40 MPa, τmax=40 MPa |
| C. | σ1=248.96 MPa, σ2=-38.96 MPa, τmax=140.8 MPa |
| D. | σ1=248.96 MPa, σ2=-38.96 MPa, τmax=50 MPa |
| Answer» D. σ1=248.96 MPa, σ2=-38.96 MPa, τmax=50 MPa | |
| 4. |
The X and Y- axis of Mohr’s circle represent ________ |
| A. | normal stress and shear stress |
| B. | shear stress and normal stress |
| C. | principal normal stress and principal shear stress |
| D. | principal shear stress and principal normal stress |
| Answer» B. shear stress and normal stress | |
| 5. |
An angle θ in the physical element is represented by ________ on Mohr’s circle. |
| A. | 2θ |
| B. | 3θ |
| C. | 4θ |
| D. | θ |
| Answer» B. 3θ | |
| 6. |
The radius of Mohr’s circle is equal to________ |
| A. | σx |
| B. | τmax |
| C. | σy |
| D. | (σx+σy)/2 |
| Answer» C. σy | |
| 7. |
Mohr’s Circle represents__________ |
| A. | the endurance limit to fatigue failure |
| B. | the state of stress at a point on an oblique plane |
| C. | the area of multiple circles |
| D. | the lattice planes of the crystal |
| Answer» C. the area of multiple circles | |