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WorksheetsCIEN 204 2P (MatCons) Midterm
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
A type of property that can be observed / determined without change of the identity of the material.
a)
Physical
b)
Mechanical
c)
Chemical
d)
Biological
2.
A type of property that shows material’s behavior when subjected to mechanical stresses.
a)
Physical
b)
Mechanical
c)
Chemical
d)
Biological
3.
Ratio of mass to volume.
a)
Density
b)
Unit weight
c)
Viscosity
d)
Permeability
4.
Ratio of weight to volume.
a)
Density
b)
Unit weight
c)
Viscosity
d)
Permeability
5.
Ratio of density (or unit weight) of material to density (or unit weight) of water.
a)
Density
b)
Unit weight
c)
Viscosity
d)
Specific gravity
6.
Regaining original shape and size after removal of external force.
a)
Elasticity
b)
Yield Strength
c)
Ultimate Tensile Strength
d)
Ductility
7.
Stress needed to produce a specified amount of plastic or permanent deformation usually occur at 0.20% change in length.
a)
Elasticity
b)
Yielf Strength
c)
Ultimate Tensile Strength
d)
Ductility
8.
Maximum stress a material can withstand before fracture.
a)
Elasticity
b)
Yielf Strength
c)
Ultimate Tensile Strength
d)
Ductility
9.
Plastic deformation that a material can withstand without fracture.
a)
Elasticity
b)
Yielf Strength
c)
Ultimate Tensile Strength
d)
Ductility
10.
Resistance to abrasion, deformation, scratching or to indentation by another hard body.
a)
Hardness
b)
Toughness
c)
Fatigue Strength
d)
Endurance Limit
11.
Energy required to fracture a unit volume of material commonly associated with impact loading.
a)
Hardness
b)
Toughness
c)
Fatigue Strength
d)
Endurance Limit
12.
Fatigue failure results from a repeated cyclic application of stress, which may below the yield strength.
a)
Hardness
b)
Toughness
c)
Fatigue Strength
d)
Endurance Limit
13.
Stress level a material can handle without fatigue failure regardless to the number of cycle.
a)
Hardness
b)
Toughness
c)
Fatigue Strength
d)
Endurance Limit
14.
Plastic deformation of material which occurs as a function of time when the material is subjected to constant stress below its yield strength.
a)
Hardness
b)
Toughness
c)
Fatigue Strength
d)
Creep resistance
15.
Particles that all passes through 4.75 mm sieve and retain on 0.075 mm sieve.
a)
Fine Aggregates
b)
Coarse Aggregates
c)
Silt
d)
Clay
16.
Particles that retain on 4.75 mm sieve
a)
Fine Aggregates
b)
Coarse Aggregates
c)
Silt
d)
Clay
17.
Particles that all passes through 0.075 mm sieve and retain on 0.002 mm sieve
a)
Fine Aggregates
b)
Coarse Aggregates
c)
Silt
d)
Clay
18.
Particles that all passes through 0.002 mm sieve.
a)
Fine Aggregates
b)
Coarse Aggregates
c)
Silt
d)
Clay
19.
Interlocking of aggregate and paste owing to the roughness of the former. When bond is good, crushed concrete specimen contains broken aggregates in addition to ones pulled out from their socket.
a)
Bond
b)
Impact value
c)
Abrasion
d)
Toughness
20.
Measures the toughness of particles by impact
a)
Bond
b)
Impact value
c)
Abrasion
d)
Toughness
21.
Measures the resistance of particles against wearing.
a)
Bond
b)
Impact value
c)
Abrasion
d)
Toughness
22.
Procedure used to assess the particle size distribution or gradation of a granular material.
a)
Sieve Analysis
b)
Particle Sizing
c)
Oven Drying
d)
Abrasion Test
23.
In abrasion test, how many spheres should be used when the sample is 2.5kg?
a)
6
b)
8
c)
11
d)
12
24.
What is the temperature required in oven drying an aggregate sample?
a)
110 OC
b)
90 OC
c)
100 OC
d)
105 OC
25.
It the mass of a unit volume of bulk aggregate material, in which the volume includes the volume of the individual particles and the volume of the voids between the particles.
a)
Bulk density
b)
Mass density
c)
Weight density
d)
Density
26.
Unit volume of aggregate, the space between particles in an aggregate mass not occupied by solid mineral matter.
a)
Bulk density
b)
Mass density
c)
Voids
d)
Permeability
27.
In rodding procedure, how many strokes of the tamping rod is followed?
a)
25
b)
20
c)
15
d)
10
28.
It is the increase in the mass of aggregate due to water in the pores of the material
a)
Specific Gravity
b)
Apparent Specific Gravity
c)
Bulk Specific Gravity
d)
Absorption
29.
It is used in determining the degree of uniformity of the aggregate gradation.
a)
Finess Modulus
b)
Gradation
c)
Bulk density
d)
Mass density
30.
It is an empirical number relating to the fineness of the aggregate.
a)
Gradation
b)
Bulk density
c)
Mass density
d)
Finess Modulus
31.
When mix with water, serves as binding agent of concrete.
a)
Cement
b)
Aggregates
c)
Admixtures
d)
Lime
32.
What is the primary role of cement when mixed with water in concrete?
a)
Acts as a filler
b)
Acts as a binder
c)
Acts as a coloring agent
d)
Acts as an insulator
33.
Which of the following is a key raw material for cement manufacturing?
a)
Clay
b)
Sand
c)
Granite
d)
Limestone
34.
Tricalcium silicate (C3S) in cement is primarily responsible for which of the following?
a)
Long-term strength
b)
Initial set and early strength gain
c)
Reducing heat of hydration
d)
Expansion control
35.
What is the role of gypsum in the cement manufacturing process?
a)
Increases setting time
b)
Decreases strength
c)
Slows down the hydration of tricalcium aluminate
d)
Enhances color
36.
Which compound in cement is responsible for strength gain after the first week?
a)
Tricalcium silicate
b)
Tricalcium aluminate
c)
Dicalcium silicate
d)
Ferrite
37.
Which test is used to determine the soundness of cement?
a)
Blaine Test
b)
Le Chatelier Test
c)
Vicat Apparatus Test
d)
Slump Test
38.
Which of the following affects the setting time of cement?
a)
Fineness of cement
b)
Water-cement ratio
c)
Chemical content
d)
All of the choices
39.
What is the result of using cement with high fineness?
a)
Low hydration rate
b)
Accelerated setting and hardening
c)
Decreased surface area
d)
Lower strength gain
40.
Which compound in cement generates the most heat during hydration?
a)
Tricalcium aluminate (C3A)
b)
Tricalcium silicate (C3S)
c)
Dicalcium silicate (C2S)
d)
Ferrite
41.
Which property of cement refers to its ability to retain volume after setting without expansion?
a)
Fineness
b)
Workability
c)
Soundness
d)
Strength
42.
What happens if cement is too fine?
a)
The hydration is incomplete
b)
It may cause shrinkage during the hardening process
c)
It reduces early strength
d)
It causes delayed setting time
43.
Which of the following compounds has little contribution to the strength of cement?
a)
Tricalcium silicate
b)
Dicalcium silicate
c)
Ferrite
d)
Tricalcium aluminate
44.
What does a higher percentage of tricalcium silicate in cement lead to?
a)
Decreased early strength
b)
Increased heat of hydration
c)
Slower setting time
d)
Reduced initial setting time
45.
Which cement compound hydrates slowly but contributes to long-term strength?
a)
Tricalcium silicate
b)
Dicalcium silicate
c)
Ferrite
d)
Tricalcium aluminate
46.
What is the role of ferrite in cement?
a)
Strength contributor
b)
Hydrates and hardens rapidly
c)
Reduces the melting temperature of raw materials
d)
Increases the heat of hydration
47.
Which cement property is measured using the Vicat Apparatus?
a)
Fineness
b)
Consistency
c)
Soundness
d)
Compressive strength
48.
What does a low water-cement ratio result in?
a)
Higher workability
b)
Higher strength
c)
Longer setting time
d)
Lower durability
49.
Which factor is most likely to accelerate the setting of cement?
a)
Lower temperature
b)
Higher fineness
c)
Lower water-cement ratio
d)
Use of retarders
50.
Which compound in cement is most sensitive to the presence of water?
a)
Dicalcium silicate
b)
Ferrite
c)
Tricalcium silicate
d)
Tricalcium aluminate
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