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Engineering-materials Questions Set 13:

Quiz Mode

What is the typical breaking stress of brittle materials?

Y/10

Y/1000

Y/6

Y/100

Solution:

Which material is generally used for aircraft components?

Mild steel

High-speed steel

Mild steel

Aluminium

Solution:

Which type of bearing bronze is the weakest?

Plain tin bronze

Phosphorus bronze

Leaded bronze

Sintered bronze

Solution:

How are thermoplastics formed?

Copolymerization

Addition polymerization

Condensation polymerization

Isomerism

Solution:

Which polymer is used to overcome the brittleness of polypropylene?

Polyethylene

Polyallomer

Polystyrene

Polyvinyl chloride

Solution:

The measure of energy loss in an insulating material is defined as

Resistivity

Electric strength

Dissipation factor

Conductivity

Solution:

Which type of defect are line defects?

One-dimensional defect

Zero-dimensional defect

Two-dimensional defect

Three-dimensional defect

Solution:

What is the name of the crystal defect where one atom is missing from a lattice site?

Interstitial

Substitutional

Vacancy

Interstitialcy

Solution:

In which type of fracture does necking occur?

Ductile fractures

Brittle fractures

Fatigue fractures

Necking is not related to fracture type

Solution:

When steel is cooled from a high-temperature region and allowed to decompose into troostite, the cooling medium used is:

Furnace

Air

Oil

Water

Engineering-materials Questions Set 13:

What is the typical breaking stress of brittle materials?

Solution:

Which material is generally used for aircraft components?

Solution:

Which type of bearing bronze is the weakest?

Solution:

How are thermoplastics formed?

Solution:

Which polymer is used to overcome the brittleness of polypropylene?

Solution:

The measure of energy loss in an insulating material is defined as

Solution:

Which type of defect are line defects?

Solution:

What is the name of the crystal defect where one atom is missing from a lattice site?

Solution:

In which type of fracture does necking occur?

Solution:

When steel is cooled from a high-temperature region and allowed to decompose into troostite, the cooling medium used is:

Solution:

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