Properties of Materials

Question 1

It is the ratio of the mass of the material and its volume

Answer 1

Density

Question 2

It is the ratio of volume of pores to the volume of the material

Answer 2

Porosity

Question 3

Property of a material which is to withsand against the combined action of atmospheric and others factors

Answer 3

Durability

Question 4

It is equal to the product of density of material and standard gravity due to acceleration

Answer 4

Specific Weight

Question 5

It is the ratio of the density of a substance to the density of a reference substance

Answer 5

Specific Gravity

Question 6

The capacity of a material to absorb and retain water

Answer 6

Water Absorption

Question 7

The ability of a material to permit water through

Answer 7

Water Permeability

Question 8

The ability to withstand fire without changing its shape and other properties

Answer 8

Fire Resistance

Question 9

It is the property of a material to withstand agains all atmospheric actions without losing its strength and shape

Answer 9

Weathering Ressistance

Question 10

__________ are slowly applied such that no shock or vibration is generated in the structure.

Answer 10

Static Loads

Question 11

Loads that remain in place for an extended period

Answer 11

Dead Load/s

Question 12

Loads that generate a shock or vibraion in the structure

Answer 12

Dynamic Load/s

Question 13

Types of Dynamic Loads

Answer 13

Periodic, Random and Transient

Question 14

Harmonic or Sinusoidal Load, repeats itself with time

Answer 14

Periodic

Question 15

The load patttern never repeats

Answer 15

Random

Question 16

An impulse load that is applied over a short time interval

Answer 16

Transient

Question 17

Relationship between the amount of force applied to a member and its deformation

Answer 17

Linear Relationship

Question 18

Materials deform in response to loads or forces. In 1678, Robert Hooke published the first findings that documented a linear relationship between the amount of force applied to a member and its deformation. The amount of deformation is proportionɛal to the properties of the material and its dimensions. The effect of the dimensions can be normalized. Dividing the force by the cross-sectional area of the specimen normalizes the effect of the loaded

Question 18

What year did Robert Hooke published the first findings that documented a linear relationship between the amount of force applied to a member and its deformation

Answer 18

1678

Question 19

Who published the first findings that documented a linear relationship between the amount of force applied to a member and its deformation

Answer 19

Robert Hooke

Question 20

It is a property of a material wherein when the load is removed the material must return to its original shape

Answer 20

Elastic Behavior

Question 21

Ratio of the lateral strain to the axial strain

Answer 21

Poisson’s Ratio

Question 22

Stress-Strain relations follows a straight line

Answer 22

Linear Material

Question 23

Return to its original shape when load is removed and reacts instantenously to changes in load

Answer 23

Elastic Material

Question 24

The slope of the tangent of the stress- strain curve at the origin

Answer 24

Initial Tangent Modulus

Question 25

The slope of the tangent at a point on the stress-strain curve

Answer 25

Tangent Modulus

Question 26

The slope of a chord drawn between the origin and an arbitrary point on the stress-strain curve

Answer 26

Secant Modulus

Question 27

The slope of a chord drawn between the origin and an arbitrary point on the stress-strain curve

Answer 27

Chord Modulus

Question 28

Type of material behavior that combines both elastic and plastic properties. When a material is subjected to a force, it first undergoes elastic deformation, which means that it deforms temporarily and will return to its original shape once the force is removed. However, if the force is large enough, the material will undergo plastic deformation, which means that it deforms permanently even after the force is removed.

Answer 28

Elastoplastic Behavior

Question 29

Type of material behavior that combines both viscous (fluid-like) and elastic (solid-like) properties. When a viscoelastic material is subjected to a force, it exhibits a time-dependent response. This means that the material will deform under the applied force and will continue to deform over time, even if the force is removed.

Answer 29

ViscoElastic Behavior