Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CMT > Lesson 3 > Flashcards

Lesson 3 Flashcards

1
Q

Structures are made up of materials and these materials are known as:

A

building materials or construction materials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

True or False. It is vital to know and understand the properties and classifications of materials used in construction as a basis for design specifications.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The quality, functions or uses, and strength are based on the _____________-.

A

material’s properties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The properties of materials basically fall under two group namely:

A
  1. Physical Properties
  2. Mechanical Properties
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Enumerate the properties that falls under physical properties.

A
  1. Specific Gravity
  2. Density
  3. Bulk Density
  4. Porosity
  5. Water Absorption
  6. Hygroscopicity
  7. Permeability
  8. Fire Resistance
  9. Thermal Properties
  10. Corrosion
  11. Durability
  12. Soundness
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

It is the ratio of the weight of material per unit volume (not including air holes and pores).

A

Specific Gravity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

This property is used to calculate the density and porosity of materials.

A

Specific Gravity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

It is defined as the mass of a material per unit of its volume.

A

Density

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

It is defined as the total weight including solids and voids of any granular materials per unit of its total volume

A

Bulk Density or Unit Weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

It is the ratio of the volume of voids in a material to the total volume of granular material.

A

Porosity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

It is the property of a material by virtue which is absorbs water from the ambience.

A

Water Absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

This property is important in the case of stones, bricks, etc.

A

Water Absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

It is the property whereby a material absorbs water present in the ambience, as in the case of salt, sugar, etc.

A

Hygroscopicity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which material is hygroscopic?

a. Timber
b. brick
c. iron bars
d. walls

A

timber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

It is the property whereby a material allows water to pass through its pores.

A

Permeability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

It is important in the case of soils.

A

Permeability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

It means readily catch fire.

A

Inflammable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

It means it can be burnt but may bot be rapidly ignite.

A

Combustible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How does fire causes damage to fire resistant materials?

A

by expansion

20
Q

These are important in the heating or cooling rooms and in designing suitable thermal insulation.

A

Thermal Properties

21
Q

Thermal properties are important in the heating or cooling rooms and in designing suitable thermal insulation. The following are important:

A
  1. heat capacity
  2. thermal resistivity
  3. sound transmission property
22
Q

It is the gradual destruction of a metal or alloy due to chemical processes such as oxidation.

A

Corrosion

23
Q

It is the resistance of a material to destruction by natural agencies.

A

Durability

24
Q

It is the resistance of a material to its deterioration due to heat, alternate freezing and thawing, etc.

A

Soundness

25
Q

It is important in the case of cement, aggregate, etc.

A

Soundness

26
Q

These refer to properties whereby materials resist various straining actions or forces.

A

Mechanical or Strength Properties

27
Q

Enumerate the properties that fall under Mechanical or Strength Properties.

A
  1. Elasticity
  2. Plasticity
  3. Toughness
  4. Resilience
  5. Hardness
  6. Brittleness
  7. Ductility
  8. Fatigue
  9. Creep
  10. Abrasive Resistance
  11. Impact Strength
  12. Strength Properties
28
Q

It is the property of a material whereby it tends to regain its shape after the removal of an applied load.

A

Elasticity

29
Q

It is the stress at the limiting point.

A

Elastic Limit

30
Q

It is the property of a material whereby it retains a change in shape or size after the removal of the load.

A

Plasticity

31
Q

It is important when a material has to be molded into different shapes.

A

Plasticity

32
Q

It is the property of a material whereby it absorbs energy due to straining actions by undergoing plastic deformation.

A

Toughness

33
Q

It is the ability of a material to recover its size and form after deformation.

A

Resilience

34
Q

It is the resistance offered by any material to indentation, scratching, cutting, or wear by abrasion.

A

Hardness

35
Q

It refers to the tendency of a material to shatter on receiving a shock.

A

Brittleness

36
Q

It is the capacity to undergo large plastic deformation before actual failure.

A

Ductility

37
Q

This property allows the drawing of thin wire of a metal.

A

Ductility

38
Q

It is the failure of a material by cracking resulting from repeated straining action.

A

Fatigue

39
Q

It is the property whereby a material undergoes deformation with respect to time under a constant load.

A

Creep

40
Q

This is over and above the instantaneous elastic strain.

A

Creep

41
Q

It is the ability of a material to resist wearing due to contact with another surface moving with respect to it.

A

Abrasive Resistance

42
Q

This is important in road surfaces, warehouse floors, etc.

A

Abrasive Resistance

43
Q

It refers to the ability of a material to withstand shock.

A

Impact Strength

44
Q

Enumerate the basic strength properties

A
  1. Tensile Strength
  2. Compressive Strength
  3. Shear Strength
45
Q

It is the maximum stress a material can withstand under a tensile (stretching) load before failure.

A

Tensile Strength

46
Q

It is the maximum stress a material can withstand without failure under a compressive load.

A

Compressive Strength

47
Q

It is the maximum stress at failure under a shearing load (a load parallel to the cross-section of the member).

A

Shear Strength

CMT (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions