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Engineering-materials Questions Set 37:

Quiz Mode

The percentage of phosphorus in phosphor bronze is typically:

0.1%

11.1%

98%

Solution:

How much silicon oxide (SiO2) does Pyrex glass contain?

23.9%

65.5%

30.6%

80.5%

Solution:

Which of the following properties does impact strength indicate?

Elasticity

Hardness

Stiffness

Toughness

Solution:

Which of the following hardness testers uses a diamond cone-type indenter?

Brinell

Vickers

Knoop

Rockwell

Solution:

What effect does cobalt have on the hardenability of steel?

No change

Increases hardenability

Changes color

Decreases hardenability

Solution:

The defect responsible for the phenomenon of slip, by which most metals deform plastically, is known as

fracture

twinning

dislocation

strain hardening

Solution:

What are the two types of nucleation processes?

Fusion and fission

Heterogeneous and Homogeneous

Heterogeneous and fusion

Fusion, fission, Heterogeneous and Homogeneous

Solution:

Tempering of quenched martensite steel is necessary to improve the

hardness of the metal

surface texture of the metal

corrosion resistance of the metal

ductility of the metal

Solution:

Which of the following statements about recrystallization are not true?

The lowest temperature at which recrystallization occurs is 450°C.

Recrystallization is used to refine the grain structure.

None of the above.

The hardness decreases by 5-10% after strain-relief recrystallization.

Solution:

Which of the following statements are not true?

Phase is a substance that is both chemically homogeneous and physically distinct

The components of the brass alloy are copper and aluminum.

None of the above

Solubility limit is the maximum concentration of solute atoms at a given temperature that dissolves in a solvent to form a solid solution.

Engineering-materials Questions Set 37:

The percentage of phosphorus in phosphor bronze is typically:

Solution:

How much silicon oxide (SiO2) does Pyrex glass contain?

Solution:

Which of the following properties does impact strength indicate?

Solution:

Which of the following hardness testers uses a diamond cone-type indenter?

Solution:

What effect does cobalt have on the hardenability of steel?

Solution:

The defect responsible for the phenomenon of slip, by which most metals deform plastically, is known as

Solution:

What are the two types of nucleation processes?

Solution:

Tempering of quenched martensite steel is necessary to improve the

Solution:

Which of the following statements about recrystallization are not true?

Solution:

Which of the following statements are not true?

Solution:

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