MCQOPTIONS
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MCQOPTIONS
This section includes 65 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Number_of_scales_used_Rockwell_hardness_test_is_:$ |
| A. | 12 |
| B. | 14 |
| C. | 13 |
| D. | 17 |
| Answer» D. 17 | |
| 52. |
Deformation_that_occurs_due_to_stress_over_a_period_of_time_is_known_as_____________$ |
| A. | Wear resistance |
| B. | Fatigue |
| C. | Creep |
| D. | Fracture |
| Answer» D. Fracture | |
| 53. |
In which of the following test specimen is in the form of the simply supported beam? |
| A. | Izod test |
| B. | Rockwell harness test |
| C. | Charpy test |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 54. |
The ability of a material to be formed by hammering or rolling is known as ________? |
| A. | Malleability |
| B. | Ductility |
| C. | Harness |
| D. | Brittleness |
| Answer» B. Ductility | |
| 55. |
Steel ball is used as indentor in which of the following test? |
| A. | Brinell hardness test |
| B. | Rockwell harness test |
| C. | Vickers hardness test |
| D. | All of the mentioned |
| Answer» B. Rockwell harness test | |
| 56. |
The ability of a material to resist plastic deformation known as _____________ |
| A. | Tensile strength |
| B. | Yield strength |
| C. | Modulus of elasticity |
| D. | Impact strength |
| Answer» C. Modulus of elasticity | |
| 57. |
Property by virtue of which material can absorb strain energy without plastic deformation is called : |
| A. | Creep |
| B. | Anisotropy |
| C. | Resilience |
| D. | Fatigue |
| Answer» D. Fatigue | |
| 58. |
Which of the following factors affect the mechanical properties of a material under applied loads? |
| A. | Content of alloys |
| B. | Grain size |
| C. | Imperfection and defects |
| D. | Shape of material |
| Answer» E. | |
| 59. |
Material with same property in all direction may be termed as : |
| A. | Creep |
| B. | Anisotropy |
| C. | Isotropy |
| D. | Orthotropic |
| Answer» D. Orthotropic | |
| 60. |
Permanent deformation of material with respect to time due to constant load and variable temperature is known as: |
| A. | Elasticity |
| B. | Isotropy |
| C. | Hardness |
| D. | Creep |
| Answer» E. | |
| 61. |
The ability of materials to develop a characteristic behavior under repeated loading known as ___________ |
| A. | Toughness |
| B. | Resilience |
| C. | Hardness |
| D. | Fatigue |
| Answer» E. | |
| 62. |
Resistance developed by surface of any material is known as : |
| A. | Strength |
| B. | Hardness |
| C. | Stiffness |
| D. | Creep |
| Answer» C. Stiffness | |
| 63. |
The permanent mode of deformation of a material known as _____________ |
| A. | Elasticity |
| B. | Plasticity |
| C. | Slip deformation |
| D. | Twinning deformation |
| Answer» C. Slip deformation | |
| 64. |
The property of material to resist any elastic deformation is known as : |
| A. | Stiffness |
| B. | Hardness |
| C. | Malleability |
| D. | Strength |
| Answer» B. Hardness | |
| 65. |
The tendency of a deformed solid to regain its actual proportions instantly upon unloading known as |
| A. | |
| B. | Perfectly elastic |
| C. | Delayed elasticity |
| Answer» B. Perfectly elastic | |