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WorksheetsD8 QUIZ OF THE DAY
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
Which property differentiates true specific gravity from apparent specific gravity?
a)
Inclusion of all pores
b)
Exclusion of pores
c)
Inclusion of surface moisture
d)
Inclusion of air voids
2.
What is the significance of coefficient of softening being unity for a material?
a)
Material softens rapidly
b)
No water absorption
c)
Strength remains same when wet
d)
High porosity
3.
The plasticity of a material increases with:
a)
Decrease in temperature
b)
Increase in tensile stress
c)
Increase in temperature
d)
Increase in porosity
4.
Which material property is most critical in selecting bricks for fire-resistant construction?
a)
Density
b)
Compressive strength
c)
Refractoriness
d)
Thermal conductivity
5.
Which of the following is true about malleability?
a)
Ability to be drawn into wire
b)
Related to tensile stress
c)
Enhances under freezing
d)
Measured under compressive stress
6.
Which property is tested using the Izod test?
a)
Fatigue
b)
Impact strength
c)
Hardness
d)
Creep
7.
A material with high porosity will generally have:
a)
High bulk density
b)
High strength
c)
Low thermal conductivity
d)
High water absorption
8.
Which of the following statements is true regarding thermal conductivity?
a)
It is unaffected by porosity
b)
It decreases with moisture
c)
Porous dry materials have low thermal conductivity
d)
All materials have same conductivity
9.
Why is Bakelite preferred for electric insulation?
a)
Flexible and reusable
b)
Thermoplastic behavior
c)
High impact resistance
d)
Thermosetting and non-conductive
10.
In which property does steel outperform all traditional building materials?
a)
Thermal conductivity
b)
Compressive strength
c)
Modulus of elasticity
d)
Flexibility
11.
Which property determines material’s ability to withstand fast temperature changes?
a)
Fire resistance
b)
Spalling resistance
c)
Creep
d)
Thermal capacity
12.
The reason for failure of stone structures in coastal areas is mainly due to lack of:
a)
Aesthetic value
b)
Flexibility
c)
Chemical resistance
d)
Bulk density
13.
What does high stiffness in a material imply?
a)
Higher energy absorption
b)
Low deformation under load
c)
Resistance to scratching
d)
High thermal resistance
14.
Which of the following is most responsible for thermal insulation in concrete blocks?
a)
Color
b)
Specific gravity
c)
Porosity
d)
Hardness
15.
Which of the following reduces the durability of concrete in acidic environment?
a)
Low porosity
b)
Alkali content
c)
Sulfate resistance
d)
Specific gravity
16.
Which property best explains why glass is both hard and brittle?
a)
Low elasticity
b)
Low ductility
c)
High stiffness
d)
High porosity
17.
Which material property leads to delayed but permanent deformation under constant stress?
a)
Fatigue
b)
Creep
c)
Elasticity
d)
Plasticity
18.
Low apparent specific gravity in bricks indicates:
a)
Good compressive strength
b)
Low voids
c)
High porosity
d)
High water resistance
19.
Impact strength is most relevant for:
a)
Granite tiles
b)
Foundation concrete
c)
Industrial flooring
d)
Roof trusses
20.
Which property improves with use of air-entraining agents in concrete?
a)
Creep
b)
Elasticity
c)
Frost resistance
d)
Porosity
21.
How can you differentiate a thermosetting plastic from thermoplastic?
a)
Thermosetting melts on heating
b)
Thermoplastic hardens permanently
c)
Thermosetting cannot be reshaped
d)
Thermoplastic degrades quickly
22.
Which of the following best describes the behavior of orthotropic materials?
a)
Properties same in all directions
b)
Different properties along 3 orthogonal axes
c)
Variable porosity
d)
Uniform modulus of elasticity
23.
Resilience is a measure of:
a)
Creep under high temperature
b)
Energy absorbed up to elastic limit
c)
Total energy before fracture
d)
Energy lost under cyclic loading
24.
Why is PVC preferred in plumbing applications?
a)
High fire resistance
b)
Rigid thermosetting property
c)
Low thermal expansion
d)
Lightweight and corrosion resistant
25.
Which parameter indicates the tightness of a compacted soil or concrete?
a)
Specific weight
b)
Bulk density
c)
Density index
d)
Void ratio
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