MCQOPTIONS
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MCQOPTIONS
This section includes 9 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 typical test temperature in the hot torsion testing is _________ |
| A. | just above room temperature |
| B. | below room temperature |
| C. | above 0.6 Tm; where Tm is melting point |
| D. | just below the melting point |
| Answer» D. just below the melting point | |
| 2. |
Which of the following statement is not correct with respect to the torsion test? |
| A. | 1 = - 3; 2 = 0 |
| B. | max = 2 1/2 = max |
| C. | max = 1; 2= 3 = - 1/2 |
| D. | max = 1- 3 = 2 1 |
| Answer» D. max = 1- 3 = 2 1 | |
| 3. |
A torsion test provides a more fundamental study of the plasticity of the metal than the tension test. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The brittle fracture in the torsion test results in ________ geometry. |
| A. | flat facet |
| B. | helical shape |
| C. | cup and cone |
| D. | shear fracture |
| Answer» C. cup and cone | |
| 5. |
For calculating the modulus of rupture from the thin-walled hollow cylinder, the diameter to wall thickness ratio should be in the order of __________ |
| A. | 10-20 |
| B. | 50-100 |
| C. | 1-2 |
| D. | 1000-1500 |
| Answer» B. 50-100 | |
| 6. |
In the torsion test, the obtained data are with respect to _____________________ |
| A. | stress vs. strain |
| B. | shear stress vs. strain |
| C. | shear stress vs. Shear strain |
| D. | twisting moment vs. Angle of twist |
| Answer» E. | |
| 7. |
The maximum shear stress for a solid cylindrical bar having diameter D, and torsional moment equal to M will be _______ |
| A. | 16M/ D<sup>3</sup> |
| B. | 16M/ D<sup>4</sup> |
| C. | 8M/ D |
| D. | MD |
| Answer» B. 16M/ D<sup>4</sup> | |
| 8. |
The deformation of the specimen is measured by a twist-measurement device called the troptometer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
The torsion test cannot determine __________ |
| A. | modulus of elasticity in shear |
| B. | torsional yield strength |
| C. | modulus of rupture |
| D. | tensile strength |
| Answer» E. | |