MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
Which of the following elements reduce fracture toughness in steel? |
| A. | Phosphorous |
| B. | Manganese |
| C. | Iron |
| D. | Aluminium |
| Answer» B. Manganese | |
| 2. |
What is the relation between fracture toughness and thickness? |
| A. | Fracture toughness decreases with increase in thickness |
| B. | Fracture toughness increases with increase in thickness |
| C. | Fracture toughness does not depend on the thickness |
| D. | Fracture toughness increase linearly with an increase in thickness |
| Answer» B. Fracture toughness increases with increase in thickness | |
| 3. |
When hot water is poured into the cold glass, the glass may crack. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
WHAT_IS_THE_RELATION_BETWEEN_FRACTURE_TOUGHNESS_AND_THICKNESS??$ |
| A. | Fracture toughness decreases with increase in thickness |
| B. | Fracture toughness increases with increase in thickness |
| C. | Fracture toughness does not depend on the thickness |
| D. | Fracture toughness increase linearly with an increase in thickness |
| Answer» B. Fracture toughness increases with increase in thickness | |
| 5. |
Which_of_the_following_elements_reduce_fracture_toughness_in_steel?$ |
| A. | Phosphorous |
| B. | Manganese |
| C. | Iron |
| D. | Aluminium |
| Answer» B. Manganese | |
| 6. |
When hot water is poured into the cold glass, the glass may crack? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following decreases transition temperature in steel? |
| A. | Carbon |
| B. | Nitrogen |
| C. | Phosphorous |
| D. | Manganese |
| Answer» E. | |
| 8. |
At what temperature is steel ductile? |
| A. | -10 °C |
| B. | -5 °C |
| C. | -3 °C |
| D. | 4 °C |
| Answer» E. | |
| 9. |
Is the speed of loading is increased then: |
| A. | Chances of fracture increases |
| B. | Chances of fracture decreases |
| C. | Chances of fracture remain the same |
| D. | Elasticity of the body increases |
| Answer» B. Chances of fracture decreases | |
| 10. |
Which of the following is not a factor affecting fracture? |
| A. | Stress concentration |
| B. | Temperature |
| C. | Pressure |
| D. | Speed of loading |
| Answer» D. Speed of loading | |
| 11. |
Buckling in a column occurs in the material due to which of the following forces? |
| A. | Compressive |
| B. | Tensile |
| C. | Shear |
| D. | It doesn’t occur due to a force |
| Answer» B. Tensile | |
| 12. |
Improper heat treatment can cause mechanical failure. |
| A. | True |
| B. | False |
| Answer» B. False | |