 
			 
			MCQOPTIONS
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				This section includes 11 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 most suitable instrument for fractography is _________ | 
| A. | SEM | 
| B. | TEM | 
| C. | XRD | 
| D. | AFM | 
| Answer» B. TEM | |
| 2. | Which of the following steel will have the highest strength? (Given that the initial composition of raw material is the same for all). | 
| A. | Vacuum furnace melted steel | 
| B. | Induction furnace melted steel | 
| C. | Muffle furnace melted steel | 
| D. | Tube furnace melted steel | 
| Answer» B. Induction furnace melted steel | |
| 3. | Which of the following inclusion is most severe for the metal? | 
| A. | A | 
| B. | B | 
| C. | C | 
| D. | D | 
| Answer» D. D | |
| 4. | The formation of microcracks in metal can occur due to _________ | 
| A. | inclusion | 
| B. | solute atom | 
| C. | dislocation | 
| D. | vacancy | 
| Answer» B. solute atom | |
| 5. | What is the temperature over which ductile material converts into a brittle material? | 
| A. | 100° | 
| B. | 10° | 
| C. | 50° | 
| D. | 2° | 
| Answer» E. | |
| 6. | The mode of fracture is more temperature-dependent in FCC material than in BCC material. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 7. | For ductile material, best way to predict the failure in stress is by examining __________ | 
| A. | critical resolved shear stress | 
| B. | critical resolved normal stress | 
| C. | uniaxial tensile stress | 
| D. | uniaxial shear stress | 
| Answer» B. critical resolved normal stress | |
| 8. | The FCC material’s usual mode of fracture is necked down to a point before rupture. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 9. | For the given component the critical resolved shear stress will be equal to _________Given that the load applied is equal to P and the normal and shear angle with loading directions are θ and λ.a) P/Ab) P*cosθc) (P/A)*cosλ*cosθd) (P/ | 
| A. | P/A | 
| B. | P*cosθ | 
| C. | (P/A)*cosλ*cosθ | 
| D. | (P/A)*cosθ2 | 
| Answer» D. (P/A)*cosθ2 | |
| 10. | For the given component, the critical resolved normal stress will be equal to _________ given that the load applied is equal to P and the normal and shear angle with loading directions are θ and λ.a) P/Ab) P*cosθc) (P/A)*cosλ*cosθd) (P/ | 
| A. | P/A | 
| B. | P*cosθ | 
| C. | (P/A)*cosλ*cosθ | 
| D. | (P/A)*cosθ2 | 
| Answer» E. | |
| 11. | The brittle fracture of single crystal is related with __________________ on the cleavage plane. | 
| A. | critical resolved shear stress | 
| B. | critical resolved normal stress | 
| C. | uniaxial tensile stress | 
| D. | uniaxial shear stress | 
| Answer» C. uniaxial tensile stress | |