Quiz on Construction Materials and Methods

What is the formula for calculating density (𝝆)?

• 𝝆 = volume/mass

• 𝝆 = mass/volume

• 𝝆 = mass + volume

• 𝝆 = mass × volume

Which property refers to the ability of a material to absorb water from the air?

• Hydrophobicity

• Hydrophilicity

• Porosity

• Impermeability

What is the term for the property of a material that fractures under stress with little deformation?

• Plasticity

• Elasticity

• Brittleness

• Toughness

Which of the following materials is considered hydrophobic?

• Wood

• Concrete

• Brick

• Asphalt

What does the term 'porosity' refer to in materials?

• The density of a material

• The color of a material

• The volume of voids in a material

• The strength of a material

What is the relationship between solidity (D) and porosity (P)?

• D + P = 1

• D - P = 1

• D / P = 1

• D × P = 1

Which property indicates a material's ability to conduct heat?

• Thermal resistance

• Thermal conductivity

• Thermal expansion

• Thermal capacity

What is the main characteristic of a material with high toughness?

• It absorbs energy without rupture

• It has low tensile strength

• It is very brittle

• It fractures easily

What does the term 'bulk density' (𝝆′𝒐) refer to?

• Mass under dry conditions

• Mass under natural conditions

• Mass under packing conditions

• Mass under saturated conditions

Which of the following is a characteristic of hydrophilic materials?

• They repel water

• They absorb water easily

• They are waterproof

• They are non-porous