WorksheetsD8 MASTER THE DAY
Total questions: 115
Worksheet time: 2hrs 55mins
Name
Class
Date
1.
Which of the following materials is isotropic in nature?
a)
Wood
b)
Glass
c)
Plywood
d)
Carbon fiber
2.
What does the coefficient of softening indicate?
a)
Density of saturated material
b)
Ratio of hardness to toughness
c)
Ratio of compressive strength in saturated and dry states
d)
Water permeability
3.
Which property defines the ability of a material to absorb moisture from air?
a)
Water absorption
b)
Permeability
c)
Porosity
d)
Hygroscopicity
4.
Which of the following properties is measured using Brinell, Rockwell, or Vickers tests?
a)
Toughness
b)
Hardness
c)
Ductility
d)
Creep
5.
What is the correct match for Ductility?
a)
Plastic deformation under compressive load
b)
Drawn into thin sheets
c)
Drawn into wires
d)
Return to original shape after unloading
6.
Which property defines the ability of a material to return to its original shape after unloading?
a)
Elasticity
b)
Plasticity
c)
Malleability
d)
Toughness
7.
Which of the following properties increases with temperature?
a)
Hardness
b)
Ductility
c)
Stiffness
d)
Brittleness
8.
The modulus of elasticity is a measure of which material property?
a)
Toughness
b)
Elasticity
c)
Stiffness
d)
Plasticity
9.
Which material is considered highly brittle?
a)
Mild steel
b)
Copper
c)
Cast iron
d)
Aluminum
10.
The ability of a material to withstand repeated freezing and thawing is called:
a)
Weathering resistance
b)
Spalling resistance
c)
Frost resistance
d)
Refractoriness
11.
Which of the following is a thermal property of engineering materials?
a)
Elasticity
b)
Toughness
c)
Specific heat
d)
Plasticity
12.
Resilience is defined as the:
a)
Permanent deformation of a material
b)
Energy stored up to elastic limit
c)
Ability to resist creep
d)
Bending strength
13.
Which of the following does NOT affect the porosity of a material?
a)
Material density
b)
Number of voids
c)
Temperature
d)
Volume of pores
14.
Which of the following represents the correct order of increasing hardness on Mohs scale?
a)
Gypsum < Calcite < Quartz
b)
Talc < Apatite < Fluorite
c)
Calcite < Talc < Quartz
d)
Gypsum < Topaz < Apatite
15.
Which material property is tested using the Charpy or Izod method?
a)
Resilience
b)
Ductility
c)
Toughness
d)
Elasticity
16.
Which of the following is a measure of the ability of a material to resist deformation under tensile stress?
a)
Plasticity
b)
Elasticity
c)
Ductility
d)
Stiffness
17.
The thermal resistivity of a material is defined as:
a)
Thermal conductivity × thickness
b)
1 / Thermal conductivity
c)
Thermal conductivity / thickness
d)
1 / Thermal resistance
18.
Which of the following properties is desirable in a material used for impact loads?
a)
Elasticity
b)
Toughness
c)
Stiffness
d)
Creep
19.
Which of the following materials is considered homogeneous?
a)
Wood
b)
Plywood
c)
Mild steel
d)
Concrete
20.
The ability of a material to be hammered into thin sheets without breaking is known as:
a)
Ductility
b)
Malleability
c)
Toughness
d)
Elasticity
21.
Which material is typically considered anisotropic?
a)
Steel
b)
Aluminum
c)
Glass
d)
Wood
22.
Creep is defined as:
a)
Sudden failure under impact
b)
Progressive fracture under repeated stress
c)
Deformation under constant load over time
d)
Cracking under high humidity
23.
Which of the following plastics can be reshaped by heating?
a)
Thermosetting plastics
b)
Epoxy
c)
Bakelite
d)
Thermoplastics
24.
The ability of a material to resist environmental attacks from acid, alkali, etc., is called:
a)
Durability
b)
Chemical resistance
c)
Refractoriness
d)
Weathering resistance
25.
Which of the following is not a mechanical property?
a)
Hardness
b)
Density
c)
Toughness
d)
Ductility
26.
Which test is used to measure the hardness of materials?
a)
Charpy test
b)
Rockwell test
c)
Tensile test
d)
Fatigue test
27.
Which property determines the suitability of a material for high-temperature applications?
a)
Spalling resistance
b)
Refractoriness
c)
Weathering resistance
d)
Creep
28.
Which of the following is measured using a stress vs. number of cycles curve?
a)
Hardness
b)
Creep
c)
Elasticity
d)
Fatigue
29.
The ratio of volume of voids to the volume of solids is known as:
a)
Porosity
b)
Void ratio
c)
Density index
d)
Bulk density
30.
Which of the following is not an optical property of a material?
a)
Refractive index
b)
Reflectivity
c)
Resistivity
d)
Colour
31.
Which of the following describes anisotropic materials?
a)
Properties same in all directions
b)
Properties vary with direction
c)
High thermal conductivity
d)
Zero porosity
32.
Orthotropic materials are a type of:
a)
Homogeneous materials
b)
Anisotropic materials
c)
Composite materials
d)
Isotropic materials
33.
The property of a material that defines resistance to fire without losing structural integrity is:
a)
Thermal capacity
b)
Durability
c)
Fire resistance
d)
Refractoriness
34.
Which material is best known for its high refractoriness?
a)
Wood
b)
Clay brick
c)
Concrete
d)
Glass
35.
Which of the following statements is true about porosity?
a)
Lower porosity equals higher strength
b)
Higher porosity increases thermal insulation
c)
Porosity does not affect durability
d)
Porosity is not related to density
36.
The ability of a material to withstand temperature variation cycles without failing is called:
a)
Frost resistance
b)
Spalling resistance
c)
Thermal resistance
d)
Elasticity
37.
Which property is defined as the weight per unit volume of a material?
a)
Density
b)
Bulk density
c)
Specific weight
d)
Specific gravity
38.
Which material has the highest Mohs hardness?
a)
Talc
b)
Quartz
c)
Topaz
d)
Diamond
39.
What type of material is epoxy?
a)
Thermoplastic
b)
Thermosetting plastic
c)
Elastomer
d)
Natural polymer
40.
The ratio of bulk density to density is called:
a)
Density index
b)
Void ratio
c)
Porosity
d)
Water absorption index
41.
Which of the following materials is most ductile?
a)
Cast iron
b)
Mild steel
c)
Brick
d)
Granite
42.
The modulus of elasticity is highest in:
a)
Rubber
b)
Plastic
c)
Steel
d)
Timber
43.
What is the impact of higher specific gravity in construction materials?
a)
Lower strength
b)
Increased water absorption
c)
Heavier weight for same volume
d)
Higher ductility
44.
Which of the following properties affects thermal conductivity the most?
a)
Elasticity
b)
Porosity
c)
Specific gravity
d)
Ductility
45.
Which property is defined by the amount of heat needed to raise temperature of 1 kg of material by 1°C?
a)
Thermal conductivity
b)
Thermal resistance
c)
Specific heat
d)
Thermal diffusivity
46.
Which material shows the highest resistance to electrical conductivity?
a)
Copper
b)
Aluminum
c)
Rubber
d)
Steel
47.
A material with low toughness is likely to:
a)
Deform plastically under tensile load
b)
Shatter under impact
c)
Withstand repeated freezing
d)
Conduct heat efficiently
48.
Which of the following properties increases with moisture content in materials?
a)
Thermal conductivity
b)
Hardness
c)
Elasticity
d)
Stiffness
49.
Which property allows a material to undergo large plastic deformation in tension?
a)
Plasticity
b)
Elasticity
c)
Ductility
d)
Hardness
50.
A material that absorbs and releases energy elastically is said to have high:
a)
Resilience
b)
Hardness
c)
Brittleness
d)
Plasticity
51.
Which of the following plastics can be recycled?
a)
Thermosetting plastics
b)
Thermoplastics
c)
Elastomers
d)
Bakelite
52.
Which material property is critical for structures in cold regions?
a)
Weathering resistance
b)
Refractoriness
c)
Frost resistance
d)
Ductility
53.
Which property defines the capacity of a material to allow water to pass through under pressure?
a)
Porosity
b)
Hygroscopicity
c)
Water absorption
d)
Water permeability
54.
What is the unit of specific weight?
a)
kg/m³
b)
N
c)
kN/m³
d)
kN
55.
Which of the following properties is most desirable in road surfacing materials?
a)
Low porosity
b)
High refractoriness
c)
High spalling resistance
d)
High electrical resistivity
56.
Which is NOT a mechanical property of materials?
a)
Ductility
b)
Elasticity
c)
Thermal conductivity
d)
Toughness
57.
Which is an example of a homogeneous material?
a)
Plywood
b)
Concrete
c)
Copper
d)
Laminated board
58.
Which of the following is NOT a factor affecting the choice of building material?
a)
Economy
b)
Color
c)
Standardization
d)
Magnetism
59.
How is brittleness best described?
a)
Ability to deform plastically
b)
Ability to return to original shape
c)
Tendency to fracture without deformation
d)
Ability to absorb energy
60.
The resistance of a material to scratching and indentation is called:
a)
Hardness
b)
Toughness
c)
Stiffness
d)
Ductility
61.
Which property is assessed using Brinell and Vickers tests?
a)
Ductility
b)
Elasticity
c)
Hardness
d)
Resilience
62.
Which property defines the ability to endure wet and dry cycles?
a)
Spalling resistance
b)
Weathering resistance
c)
Fire resistance
d)
Porosity
63.
Which is considered a thermal property?
a)
Elasticity
b)
Specific heat
c)
Toughness
d)
Hardness
64.
Material used in applications requiring flexibility and rebound should have high:
a)
Stiffness
b)
Hardness
c)
Elasticity
d)
Spalling resistance
65.
Which of the following has the lowest density?
a)
Steel
b)
Concrete
c)
Wood
d)
Granite
66.
Apparent specific gravity includes:
a)
Only solid mass
b)
Pores and voids
c)
External surface only
d)
Air voids only
67.
Void ratio is defined as the ratio of:
a)
Volume of pores / total volume
b)
Mass of voids / solid mass
c)
Volume of voids / volume of solids
d)
Total volume / pore volume
68.
Which of the following enhances toughness?
a)
Stiffness and brittleness
b)
Ductility and strength
c)
Elasticity and hardness
d)
Porosity and weight
69.
Which of the following is an example of a thermoplastic?
a)
Bakelite
b)
Epoxy
c)
PVC
d)
Phenolic resin
70.
Which property measures the ability to undergo permanent deformation without breaking?
a)
Elasticity
b)
Plasticity
c)
Stiffness
d)
Fatigue
71.
Which of the following is a chemical property of building materials?
a)
Porosity
b)
Acid resistance
c)
Ductility
d)
Thermal conductivity
72.
The material property most influenced by air temperature and humidity is:
a)
Permeability
b)
Durability
c)
Hygroscopicity
d)
Refractoriness
73.
The physical property that indicates the degree to which a material's volume is occupied by pores is:
a)
Bulk density
b)
Thermal capacity
c)
Porosity
d)
Void ratio
74.
The ratio of weight of a given volume of solids to an equal volume of water is:
a)
Density
b)
Specific weight
c)
Specific gravity
d)
Bulk density
75.
Materials with specific gravity less than 1 will:
a)
Sink in water
b)
Float in water
c)
Absorb more heat
d)
Show high hardness
76.
Which of the following properties defines how much water a dry material can hold?
a)
Specific gravity
b)
Porosity
c)
Hygroscopicity
d)
Water absorption
77.
Which of these materials has the highest modulus of elasticity?
a)
Rubber
b)
Plastic
c)
Steel
d)
Wood
78.
Which of the following is not a component of thermal properties?
a)
Specific heat
b)
Thermal conductivity
c)
Refractoriness
d)
Elasticity
79.
Which property is inversely proportional to thermal conductivity?
a)
Thermal resistivity
b)
Thermal diffusivity
c)
Thermal capacity
d)
Specific heat
80.
Which of the following plastics cannot be remolded after setting?
a)
PVC
b)
Polyethylene
c)
Bakelite
d)
Polystyrene
81.
What does high ductility imply in a construction material?
a)
It can resist compressive forces well
b)
It can be drawn into wires
c)
It cannot be stretched
d)
It can absorb impact loads
82.
A material having identical values of properties in all directions is called:
a)
Orthotropic
b)
Anisotropic
c)
Isotropic
d)
Composite
83.
The property responsible for the deformation of materials under long-term loading is:
a)
Creep
b)
Resilience
c)
Fatigue
d)
Plasticity
84.
Which test is used to evaluate fatigue in a material?
a)
S-N curve test
b)
Charpy test
c)
Hardness test
d)
Tensile test
85.
Which property best describes a material that breaks without deformation?
a)
Ductility
b)
Toughness
c)
Brittleness
d)
Plasticity
86.
The ratio of the mass of material to its volume including pores is called:
a)
Density
b)
Bulk density
c)
Specific gravity
d)
Density index
87.
Which of the following is a compressive property?
a)
Ductility
b)
Malleability
c)
Tensile strength
d)
Resilience
88.
The resistance of a material to shape change under an external load is:
a)
Stiffness
b)
Creep
c)
Toughness
d)
Fatigue
89.
A material with low modulus of elasticity and high strain under load is said to be:
a)
Stiff
b)
Flexible
c)
Brittle
d)
Resilient
90.
What property is desirable in materials used in coastal or marine environments?
a)
Thermal capacity
b)
Chemical resistance
c)
Fatigue resistance
d)
Hardness
91.
Which of the following is not influenced by porosity?
a)
Bulk density
b)
Thermal conductivity
c)
Elastic limit
d)
Water absorption
92.
Which type of rubber is obtained by vulcanization of natural rubber?
a)
Synthetic rubber
b)
Ebonite
c)
Butyl rubber
d)
Neoprene
93.
Which of the following is the most abrasion-resistant material?
a)
Mild steel
b)
Aluminum
c)
Manganese steel
d)
Copper
94.
Hardness is generally tested using all the following EXCEPT:
a)
Brinell test
b)
Rockwell test
c)
Charpy test
d)
Vickers test
95.
The stress below which material returns to original shape is called:
a)
Elastic limit
b)
Plastic limit
c)
Yield stress
d)
Toughness
96.
Which of the following represents proof resilience?
a)
Energy absorbed beyond yield point
b)
Energy absorbed at breaking point
c)
Maximum elastic energy stored
d)
Energy lost as heat
97.
Fatigue failure typically occurs due to:
a)
High temperature
b)
Repeated cyclic loading
c)
High humidity
d)
Corrosive environment
98.
Which is the best example of an elastomer?
a)
PVC
b)
Rubber
c)
Bakelite
d)
Epoxy
99.
Which property makes bitumen unsuitable under alkaline conditions?
a)
Low tensile strength
b)
Chemical disintegration
c)
Poor adhesion
d)
Low thermal resistance
100.
Which plastic is commonly used in electrical insulations?
a)
Polyethylene
b)
Bakelite
c)
Polypropylene
d)
PVC
101.
Which of the following pairs is correctly matched?
a)
Spalling resistance – Load resistance
b)
Ductility – Compression
c)
Elasticity – Recoverable deformation
d)
Toughness – Surface scratch resistance
102.
The property of plastics to retain shape under load without permanent deformation is due to:
a)
Plasticity
b)
Elasticity
c)
Creep resistance
d)
Stiffness
103.
Materials with high modulus of elasticity are considered:
a)
Ductile
b)
Stiff
c)
Flexible
d)
Brittle
104.
True specific gravity excludes:
a)
Apparent voids
b)
Moisture
c)
All types of pores
d)
External surface
105.
Weathering resistance is essential in materials used for:
a)
Foundations
b)
Water tanks
c)
Exterior walls
d)
Machine tools
106.
In which form do we observe maximum water absorption in materials?
a)
Solid state
b)
Powdered state
c)
Saturated state
d)
Dry state
107.
What is the typical range of density for Portland cement?
a)
1.5–1.8 g/cm³
b)
2.1–2.3 g/cm³
c)
2.9–3.1 g/cm³
d)
3.5–4.2 g/cm³
108.
Softening coefficient of clay is:
a)
1
b)
0
c)
0.5
d)
Infinity
109.
Spalling occurs due to:
a)
Acid attack
b)
Load application
c)
Freezing and thawing
d)
Fatigue
110.
Which type of plastic has high flexibility and returns to its shape?
a)
Elastomers
b)
Rigid plastics
c)
Thermosetting
d)
Semi-rigid
111.
Impact strength is measured using:
a)
Fatigue test
b)
Creep test
c)
Charpy test
d)
Compression test
112.
Which of the following is used in making safety glass?
a)
Thermosetting resin
b)
PVB (polyvinyl butyral)
c)
Polyethylene
d)
Teflon
113.
Brittle materials exhibit:
a)
High plasticity
b)
Large elongation
c)
Sudden failure
d)
High impact resistance
114.
Unit of modulus of elasticity is:
a)
Joule
b)
kg/m³
c)
Newton
d)
N/mm²
115.
Which of the following increases durability of concrete in sulfate-rich soils?
a)
Use of ordinary cement
b)
Use of low porosity aggregates
c)
Air entraining admixtures
d)
Use of sulfate-resisting cement
100 %
