Engineering :: Engineering Materials
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| 221. |
Every material obeys the Hooke's law within |
| A. |
Elastic limit |
B. |
Plastic limit |
| C. |
Breaking limit |
D. |
Yield limit |
| E. |
Limit of proportionality |
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Answer: Option A
Explanation:
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| 222. |
When elastic limit is reached |
| A. |
Tensile strain decreases in proportion to stress |
B. |
Tensile strain increases in proportion to stress |
| C. |
Tensile strain increases more quickly |
D. |
Tensile strain decreases more quickly |
| E. |
None of the above |
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Answer: Option A
Explanation:
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| 223. |
Bainiti is a fine maxture of |
| A. |
ferrite and cementite |
B. |
cementitie and peoitite |
| C. |
pearlite and ferrite |
D. |
austenti and ferrite |
Answer: Option A
Explanation:
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| 224. |
If a material has similar properties throughout its volume, it is said to be |
| A. |
Isotropic |
B. |
Isentropic |
| C. |
Continuous |
D. |
Uniform |
| E. |
Homogeneous |
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Answer: Option E
Explanation:
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| 225. |
The property of metal when the recovery after unloading is complete but not instantaneous is |
| A. |
Elasticity |
B. |
Plsticity |
| C. |
Inelasticity |
D. |
An elasticity |
| E. |
Visco elasticity |
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Answer: Option D
Explanation:
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| 226. |
The ability of material to absorb a large amount of energy is |
| A. |
Ductility |
B. |
Malleability |
| C. |
Toughness |
D. |
Resilience |
| E. |
Hardness |
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Answer: Option C
Explanation:
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| 227. |
The property by which a body returns to its original shape after the removal to the load is called |
| A. |
Ductility |
B. |
Malleability |
| C. |
Softness |
D. |
Elasticity |
| E. |
Plasticity |
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Answer: Option D
Explanation:
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| 228. |
The property of materials by which they can be drawn into wires is known as |
| A. |
Ductility |
B. |
Elasticity |
| C. |
Plasticity |
D. |
Malleability |
| E. |
Creep |
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Answer: Option A
Explanation:
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| 229. |
The property of material by which it can be rolled into sheets is called |
| A. |
Plasticity |
B. |
Elasticity |
| C. |
Malleability |
D. |
Ductility |
| E. |
Creep |
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Answer: Option C
Explanation:
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| 230. |
The phenomenon of materials in which slow extension of materials takes place with the time at constant load is known as |
| A. |
Plasticity |
B. |
Elasticity |
| C. |
Malleability |
D. |
Ductility |
| E. |
Creep |
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Answer: Option E
Explanation:
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