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13. Choose a phrase from the list below that has the same meaning as the italicized phrase:

can be fabricated

respond

Technology

Tension

Fatigue

vibration

fracture

elastic limit

external

occur

Creep

  1. Materials Science and the application of scientific knowledge for practical purposes is the study of materials and how they can be manufactured to meet the needs of modern technology.

  2. Engineers must know how materials do something as a reaction to forces that come from outside, such as tension, compression, torsion, bending and shear.

  3. The materials may also have permanent deformation or they may break.

  4. A strained state or condition resulting from forces acting in opposition to each other is a pulling force.

  5. Extreme tiredness resulting from physical exertion is the growth of cracks under stress.

  6. It occurs when a mechanical part is subjected to a repeated or cyclic stress.

  7. Even when the maximum stress never exceeds the maximum extent to which a solid may be stretched without permanent alteration of size or shape the, failure of the material can be found to be under a particular set of conditions even after a short time.

  8. Undergo gradual deformation under stress is a slow, permanent deformation that results from a steady force acting on a material.

14. Choose the correct variant without consulting the text. In case you fail to do it, revive the corresponding material:

1. …. is the study of materials and how they can be fabricated to meet the needs of modern technology.

a. Strength of materials

b. Materials Science and Technology

c. Automation and Robotics

2. Engineers must know how materials respond to …. .

a. internal forces

b. humidity

c. external forces

3. All materials respond to these forces by … .

a. elastic deformation

b. rupture of material

c. pulling force

4. … is a pressure causing a decrease in volume

a. Fatigue

b. Creep

c. Compression

5. is a pulling force; for example, the force in a cable holding a weight.

a. Torsion

Tension

Elastic deformation

6. Knowledge of tensile stress, elastic limits, and the resistance of materials to creep and fatigue are of basic importance in … .

a. engineering

b. sociology

c.phisics

7. … is a slow, permanent deformation that results from steady force acting on a material.

a. Vibration

b. Compression

c. Creep

8. Creep extended over a long time finally leads to … of the material

a. deformation

b. the rupture

c. streching