MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Behaviour knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
DBTT is a great concern in steels. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
FTP is always lower than DBTT. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Ductile to brittle transition temperature is known as ________ |
| A. | Upper shelf energy |
| B. | Fracture transition plastic |
| C. | Nil ductility temperature |
| D. | Fracture appearance transition temperature |
| Answer» E. | |
| 4. |
What is the region between the lower shelf and the upper shelf? |
| A. | Transition |
| B. | Tension |
| C. | Fracture |
| D. | Cleavage |
| Answer» B. Tension | |
| 5. |
Below which temperature, a material in particular a steel plate breaks? |
| A. | FTP |
| B. | NDT |
| C. | DBTT |
| D. | LSE |
| Answer» C. DBTT | |
| 6. |
Above which temperature, fracture changes to almost totally ductile from substantially brittle? |
| A. | FTP |
| B. | NDT |
| C. | DBTT |
| D. | LSE |
| Answer» B. NDT | |
| 7. |
Which region is known as the initiator of brittle fracture? |
| A. | High triaxial stress |
| B. | Tensile stresses |
| C. | Vacancies |
| D. | Shear stress |
| Answer» B. Tensile stresses | |
| 8. |
In which mode, the fracture surface appears to be bright and granular? |
| A. | Dynamic mode |
| B. | Static mode |
| C. | Ductile mode |
| D. | Brittle mode |
| Answer» E. | |
| 9. |
The energy absorbed in fracture due to impact is known as _________ |
| A. | Static energy |
| B. | Toughness |
| C. | Fracture energy |
| D. | Transition energy |
| Answer» D. Transition energy | |
| 10. |
Which test is used for DBTT? |
| A. | Tensile test |
| B. | Charpy test |
| C. | Fatigue test |
| D. | Leeb test |
| Answer» C. Fatigue test | |
| 11. |
With an increase in sharpness of notch, transition temperature ________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | First increases then decrease |
| Answer» B. Decreases | |
| 12. |
Which factor affects ductile brittle transition behaviour the most? |
| A. | Strain rate |
| B. | Temperature |
| C. | Triaxiality |
| D. | Notching |
| Answer» C. Triaxiality | |