MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHAT_IS_THE_MECHANISM_IN_WHICH_EDGE_DISLOCATION_MOVE_OUT_OF_THE_SLIP_IS_CALLED________?$ |
| A. | Climb dislocation |
| B. | Screw dislocation |
| C. | Shear dislocation |
| D. | Slip dislocation |
| Answer» B. Screw dislocation | |
| 2. |
WHICH_TYPE(S)_OF_DISLOCATION_ARE_INCLUDED_IN_MIXED_DISLOCATION??$ |
| A. | Only Edge dislocation |
| B. | Only shear dislocation |
| C. | Only screw dislocation |
| D. | Both edge and screw dislocation |
| Answer» E. | |
| 3. |
Which type of stress is involved in the motion of screw dislocation? |
| A. | Tensile stress |
| B. | Shear stress |
| C. | Compressive stress |
| D. | Does not involve stress |
| Answer» C. Compressive stress | |
| 4. |
Which type of deformation occurs due to dislocation? |
| A. | Slip plastic deformation |
| B. | Elastic deformation |
| C. | It does not show deformation |
| D. | Slip elastic deformation |
| Answer» B. Elastic deformation | |
| 5. |
Path of screw dislocation is in the form of _______ |
| A. | Circular |
| B. | Cylindrical |
| C. | Spiral or helical |
| D. | Rectangular |
| Answer» D. Rectangular | |
| 6. |
Which technique is used to observe dislocation? |
| A. | Positron annihilation technique |
| B. | Thermal imaging |
| C. | Thermal expansion measurements |
| D. | Electron-microscope technique |
| Answer» E. | |
| 7. |
What type of direction will the burger vector of dislocation for a metallic material show? |
| A. | Closed-packed crystallographic direction |
| B. | Rounded-packed crystallographic direction |
| C. | Open-packed crystallographic direction |
| D. | Parallel-packed crystallographic direction |
| Answer» B. Rounded-packed crystallographic direction | |
| 8. |
What is the relative orientation of dislocation lines for edge dislocation? |
| A. | Parallel |
| B. | Perpendicular |
| C. | Circular |
| D. | Both parallel and perpendicular |
| Answer» C. Circular | |
| 9. |
The magnitude and direction of lattice distortion are expressed in terms of which vector? |
| A. | Dislocation vector |
| B. | Screw vector |
| C. | Edge vector |
| D. | Burger vector |
| Answer» E. | |
| 10. |
A dissolution in which an extra portion of a plane of atoms or a half plane terminates within a crystal is called as ________ |
| A. | Edge dislocation |
| B. | Mixed dislocation |
| C. | Interfacial dislocation |
| D. | Screw dislocation |
| Answer» B. Mixed dislocation | |