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INEN 101- Introduction to Industrial Engineering > LESSON 2(PART2) Classification of Material > Flashcards

LESSON 2(PART2) Classification of Material Flashcards

WEEK 2

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1
Q

Properties of Materials

A

Mechanical Properties
CHEMICAL PROPERTIES
ELECTRICAL PROPERTIES
MAGNETIC PROPERTIES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
OTHER PROPERTIES

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2
Q

The resistance of a material to the __________ is found out by dividing the difference in weights of specimens prior to and after ______ with the area of ________.

A

Abrasion

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3
Q

In many applications, the building materials are required to sustain steady loads for long periods

A

Creep

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4
Q

When a load is applied to a material, there is a
change in its shape and dimension.

A

ELASTICITY

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5
Q

two types of deformation

A

ELASTIC DEFORMATION
PLASTIC DEFORMATION

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6
Q

A deformation is said to be _______ when the solid deforms when it is loaded but returns to its original position when unloaded

A

Elastic Deformation

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6
Q

A deformation is said to be ______ when the solid retains full or partly the change in shape after the load is removed

A

Plastic Deformation

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7
Q

When the materials are subjected to a repetitive or fluctuating stress, they will fail at a stress much lower than that required to cause fracture under steady loads.

A

Fatigue

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8
Q

The ability of a material to resist penetration by a harder body

A

Hardness

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9
Q

Scale of hardness

A

Mohs’ scale of hardness

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10
Q

Lowest remarks of hardness

A

Talc

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11
Q

Highest remarks of hardness

A

Diamond

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12
Q

The _______ strength of a material is the quantity of work required to cause its failure per its unit volume

A

Impact Strength

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13
Q

defined as its ability to change its shape under load without cracking and to retain its shape after the removal of load. The _______ materials fail suddenly under pressure without appreciable deformation preceding the failure.

A

Plasticity and Brittleness

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14
Q

The ability of a material to resist failure under the action of stresses caused by a load

A

Strength

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15
Q

The failure of a material under the combined actions of abrasion and impact

A

Wear

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16
Q

material suggest the tendency of the material to combine with other substances, its reactivity, solubility and effects like corrosion, chemical composition, acidity, alkalinity, etc.

A

Chemical Properties

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17
Q

When iron reacts with oxygen, iron oxide is formed which is red in color and iron metal is coated with it

A

Corrosion

18
Q

the ability of the material to resist the flow of an electric current and they include conductivity, dielectric strength and resistivity.

A

Electrical Properties

19
Q

This refers to the ability of the material to allow the passage of electricity or heat.

A

Conductivity

20
Q

the measure of magnetization that a material obtains in response to an applied magnetic field

A

Permeability

21
Q

a magnet may have more than one possible magnetic moment in a given magnetic field, depending on how the field changed in the past

A

hysteresis

22
Q

the value of the external magnetic field that brings to zero the magnetization or magnetic flux density of a magnetic body when that external magnetic field is caused to operate in the opposite direction from the orientation of the magnetization of the magnetic body

A

Coercive force

23
Q

Optical Properties:

A
  1. Color
  2. light transmission
  3. refractive index
  4. reflectivity
24
Q

used to mean the mass of a unit volume of material in its natural state i.e. including pores and voids. It is obtained by finding out the ratio of mass of specimen to the volume of specimen in its natural state

A

Bulk Density

25
Q

The ability of material to withstand the action of acids, alkalis, gases and salt solution.

A

Chemical Resistance

26
Q

The ratio of compressive strength of material saturated with water to that in dry state

A

Coefficient of Softening

27
Q

The ratio of bulk density of a material to its density and it thus denotes the degree to which its volume is filled up with solid matter

A

Density Index

28
Q

material is defined as the mass of a unit volume of homogeneous material. It is obtained by working out the ratio of mass of material to the volume of material in homogeneous state.

A

Density

29
Q

The property of a material to resist the combined action of atmospheric and other factors

A

Durability

30
Q

used to mean the ability of a material to resist the action of high temperature without losing its load-bearing capacity.

A

Fire Resistance

31
Q

The ability of a water-saturated material to resist repeated freezing and thawing without considerable decrease of mechanical strength or visible signs of failure is known as the frost resistance

A

Frost Resistance

32
Q

The property of a material to absorb water vapor from air

A

Hygroscopicity

33
Q

used to indicate the degree by which the volume of a material is occupied by pores.

A

Porosity

34
Q

ability of a material to withstand prolonged action of high temperature without melting or loosing shape.

A

Refractoriness

35
Q

The ability of a material to endure a certain number of cycles of sharp temperature variations without failing it mainly depends on the coefficients of linear expansion of its constituents.

A

Spalling Resistance

36
Q

defined as the quantity of heat, expressed in kilocalories, required to heat 1 N of material by 1°C.

A

Specific Heat

37
Q

The property of a material to absorb heat

A

Thermal Capacity

38
Q

the amount of heat in kilocalories that will flow through unit area of the material with unit thickness in unit time when difference of temperature on its faces is also unity.

A

Thermal Conductivity

39
Q

The ability of a material to absorb and retain water and shape of pores, present in the material.

A

Water Absorption

40
Q

The capacity of a material to allow water to pass through it under pressure

A

. Water Permeability

41
Q

Other Properties

A

Thermal Properties:
Technological Properties:

42
Q

specific heat, thermal expansion and conductivity

A

Thermal Properties:

43
Q
A

INEN 101- Introduction to Industrial Engineering (3 decks)

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