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Engineering-materials Questions Set 49:

Quiz Mode

Whiskers are

very thin wires

very thin copper wires

none of these

very thin single crystals

Solution:

Metals typically have...

low specific heats

high specific heats

medium specific heats

zero specific heats

Solution:

What is the maximum possible atomic packing factor (APF) in metals, assuming atoms to be perfect spheres?

0.95

0.74

0.66

0.52

Solution:

For which type of dislocation is the strain pure shear?

Screw dislocation

Jog dislocation

Mixed dislocation

Edge dislocation

Solution:

What property must be the same for elements to be called isotopes?

Number of protons

Number of neutrons

Atomic mass

Molar mass

Solution:

The eutectic mixture of austenite (γ) and cementite (Fe₃C) is called __________

Ledeburite

Pearlite

Hyper and hypo eutectoid steel

Cast iron

Solution:

Which of the following point defects is non-stoichiometric in nature?

Schottky defect

Metal excess defect

Interstitial defect

Impurity defect

Solution:

Which of the following polymers produce HCl as a byproduct during their synthesis?

Urea formaldehyde

Nylon-6,6

Phenol formaldehyde

Polycarbonate

Solution:

Which of the following statements about dislocations in metallic materials is not true?

The burger vector of dislocation for a metallic material will show a close-packed crystallographic direction.

None of the above

The mechanism in which an edge dislocation moves out of the slip plane is called climb.

Shear stress is involved in the motion of screw dislocations.

Engineering-materials Questions Set 49:

Whiskers are

Solution:

Metals typically have...

Solution:

What is the maximum possible atomic packing factor (APF) in metals, assuming atoms to be perfect spheres?

Solution:

For which type of dislocation is the strain pure shear?

Solution:

What property must be the same for elements to be called isotopes?

Solution:

The eutectic mixture of austenite (γ) and cementite (Fe₃C) is called __________

Solution:

Which of the following point defects is non-stoichiometric in nature?

Solution:

Which of the following polymers produce HCl as a byproduct during their synthesis?

Solution:

Which of the following statements about dislocations in metallic materials is not true?

Solution:

Related Question Sets:

Related Topics:

Engineering-materials Questions Set 49:

Whiskers are

Solution:

Metals typically have...

Solution:

What is the maximum possible atomic packing factor (APF) in metals, assuming atoms to be perfect spheres?

Solution:

For which type of dislocation is the strain pure shear?

Solution:

What property must be the same for elements to be called isotopes?

Solution:

The eutectic mixture of austenite (γ) and cementite (Fe3C) is called __________

Solution:

Which of the following point defects is non-stoichiometric in nature?

Solution:

Which of the following polymers produce HCl as a byproduct during their synthesis?

Solution:

Which of the following statements about dislocations in metallic materials is not true?

Solution:

Related Question Sets:

Related Topics:

The eutectic mixture of austenite (γ) and cementite (Fe₃C) is called __________