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Engineering-materials Questions Set 1:

Quiz Mode

What is the minimum interplanar spacing required for Bragg's diffraction?

λ/4

λ/2

2λ

Solution:

The degree of freedom at the triple point in the unary phase diagram for water is ________

Solution:

Up to which point on the stress-strain curve is Hooke's law valid?

Elastic limit

Yield point

Proportionality limit

Fracture point

Solution:

In terms of which of the following properties, metals are generally better than ceramics?

Hardness

Ductility

Toughness

Yield strength

Solution:

Which of the following does not affect the yield strength of a material?

Solute hardening

Precipitation hardening

Work hardening

Martensitic transformation

Solution:

Which of the following materials are to be tested using an F-scale?

Bronze, gunmetal, and beryllium copper

Thermoplastics

Case hardened steels

Copper and brass

Solution:

Which type of dislocation is included in mixed dislocation?

Only screw dislocation

Only edge dislocation

Both screw and edge dislocation

Neither screw nor edge dislocation

Solution:

Creep failure occurs due to

gradual application of load at ordinary temperature

excessive work hardening

a very rapid rate of loading at subzero temperature

formation of voids under a steady load at elevated temperature

Solution:

Which of the following is the correct increasing order of hardness for steel microstructures?

Austenite < Pearlite < Ferrite < Martensite

Pearlite < Austenite < Ferrite < Martensite

Austenite < Ferrite < Pearlite < Martensite

Austenite < Martensite < Ferrite < Pearlite

Solution:

Which of the following statements about edge dislocations is not true?

Edge dislocation is a linear crystalline defect

Edge dislocation has an extra plane that is inserted inside the crystal

The angle between the Burgers vector and dislocation line in edge dislocation is 45 degrees.

None of the above

Engineering-materials Questions Set 1:

What is the minimum interplanar spacing required for Bragg's diffraction?

Solution:

The degree of freedom at the triple point in the unary phase diagram for water is ________

Solution:

Up to which point on the stress-strain curve is Hooke's law valid?

Solution:

In terms of which of the following properties, metals are generally better than ceramics?

Solution:

Which of the following does not affect the yield strength of a material?

Solution:

Which of the following materials are to be tested using an F-scale?

Solution:

Which type of dislocation is included in mixed dislocation?

Solution:

Creep failure occurs due to

Solution:

Which of the following is the correct increasing order of hardness for steel microstructures?

Solution:

Which of the following statements about edge dislocations is not true?

Solution:

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