PSAD
問題一覧
1
The material composition is the same, but its mechanical properties are different
in every direction.
Orthotropic Material
2
Refers to the tendency of solid materials to return to their original shape after
forces are applied on them. When the forces are removed, the object will return to
its initial shape and size.
Elasticity
3
Refer to the stress at which a material begins to deform plastically
Yielding
4
The ability of the material to absorb energy in the plastic range.
Toughness
5
The ability of the material to absorb energy in the elastic range.
Resilience
6
The term refers to the ability of a material to deform in the plastic range without
breaking.
Ductility
7
It is the point through which the resultant of the resistance to the applied lateral
force acts.
Center of rigidity
8
The point on a structure where the resultant vertical force acts.
Center of mass
9
The distance between the center of mass and center of rigidity.
Eccentricity
10
Which of the following can be measured by seismometer?
Ground displacement
11
Which of the following refers to the flexibility of a structural system?
Inverse of stiffness
12
The stress point where a material will have appreciable deform when small amount
of stress is experienced.
Yielding
13
The ability of the material to deform in plastic range without breaking.
Toughness
14
The greatest stress that can be applied to an elastic body without causing permanent
deformation.
Elastic limit
15
What will develop if the center of mass and center of rigidity of a structure does
not coincide?
Torsional shear stress
16
A building which has a floor which is less than 70% as stiff as the floor immediately
above it, or less than 80% as stiff as the average stiffness of the three floors
above it.
Soft storey
17
Refers to the lateral displacement of one level relative to the other level above
or below.
Storey drift
18
Which of the following best refers to the rigidity of a structure.
Reciprocal of deflection
19
Which of the following best describes liquefaction?
Sudden drop of shear strength
20
If two springs with stiffness k1 and k2 are arranged in parallel, which of the
following gives the combined stiffness k?
𝐤 = 𝐤𝟏 + 𝐤𝟐
21
The point through which the resultant of the resistance to the applied lateral
force acts.
center rigidity
22
The point on a structure through which the applied seismic force acts.
Center of mass
23
Refers to the flexibility of a structure
Reciprocal of stiffness
24
A property of a material which has the same composition at every point, but the
elastic property may not be the same in all directions.
Isotropic
25
A property of a material that has the same elastic properties in all directions.
Homogeneous
26
A property of a material in which the composition material exhibits elastic
properties in one direction different from that in perpendicular direction.
Orthotropic
27
Which of the following describes the location of an earthquake besides epicenter.
Focal depth
28
Seismometer measures?
Components of ground motion
29
A Richter Scale measures _________ of an earthquake.
Magnitude
30
Which of the following comprises the bulk volume of concrete?
Aggregates
31
Which of the following tests determines the consistency of concrete?
Slump test
32
The most important factor in concrete mix.
Water-cement ratio
33
A material condition that causes it to deform permanently even due to slight
increase of stress.
Yielding
34
Fracture caused when a material is subjected to repeated cycles of stress or strain.
Fatigue
35
When a material is loaded over a long period, it causes it to deform continuously
until fracture.
Creep
36
Refers to the lateral displacement of one level relative to the level above or
below.
Storey drift
37
Occurs when the structure’s center of mass does not coincide with its center of
rigidity.
Torsional shear stress
38
A material condition that causes it to deform permanently even due to slight
increase in stress.
Yielding
39
Fracture caused when a material is subjected to repeated cycles of stress or strain.
Fatigue
40
When a material is loaded over a long period, it causes it to deform continuously
until fracture.
Creep
41
The stress at failure
Rupture strength
42
The highest ordinate in a stress-strain diagram.
Ultimate strength
43
The material will have an appreciable elongation or yielding without corresponding
increase in load.
Yield strength
44
A structure is said to be
if, when all its reactions are removed, it does not
undergo any change of shape.
internally stable
45
A structure that changes its shape after the removal of the supports is classified as
internally unstable
46
When the number of reactions is less than 3, the structure is said to be
statically unstable
47
Structures with reactions that are not arranged to provide geometric stability and are either parallel or concurrent are denoted as
geometrically unstable externally
問題一覧
1
The material composition is the same, but its mechanical properties are different
in every direction.
Orthotropic Material
2
Refers to the tendency of solid materials to return to their original shape after
forces are applied on them. When the forces are removed, the object will return to
its initial shape and size.
Elasticity
3
Refer to the stress at which a material begins to deform plastically
Yielding
4
The ability of the material to absorb energy in the plastic range.
Toughness
5
The ability of the material to absorb energy in the elastic range.
Resilience
6
The term refers to the ability of a material to deform in the plastic range without
breaking.
Ductility
7
It is the point through which the resultant of the resistance to the applied lateral
force acts.
Center of rigidity
8
The point on a structure where the resultant vertical force acts.
Center of mass
9
The distance between the center of mass and center of rigidity.
Eccentricity
10
Which of the following can be measured by seismometer?
Ground displacement
11
Which of the following refers to the flexibility of a structural system?
Inverse of stiffness
12
The stress point where a material will have appreciable deform when small amount
of stress is experienced.
Yielding
13
The ability of the material to deform in plastic range without breaking.
Toughness
14
The greatest stress that can be applied to an elastic body without causing permanent
deformation.
Elastic limit
15
What will develop if the center of mass and center of rigidity of a structure does
not coincide?
Torsional shear stress
16
A building which has a floor which is less than 70% as stiff as the floor immediately
above it, or less than 80% as stiff as the average stiffness of the three floors
above it.
Soft storey
17
Refers to the lateral displacement of one level relative to the other level above
or below.
Storey drift
18
Which of the following best refers to the rigidity of a structure.
Reciprocal of deflection
19
Which of the following best describes liquefaction?
Sudden drop of shear strength
20
If two springs with stiffness k1 and k2 are arranged in parallel, which of the
following gives the combined stiffness k?
𝐤 = 𝐤𝟏 + 𝐤𝟐
21
The point through which the resultant of the resistance to the applied lateral
force acts.
center rigidity
22
The point on a structure through which the applied seismic force acts.
Center of mass
23
Refers to the flexibility of a structure
Reciprocal of stiffness
24
A property of a material which has the same composition at every point, but the
elastic property may not be the same in all directions.
Isotropic
25
A property of a material that has the same elastic properties in all directions.
Homogeneous
26
A property of a material in which the composition material exhibits elastic
properties in one direction different from that in perpendicular direction.
Orthotropic
27
Which of the following describes the location of an earthquake besides epicenter.
Focal depth
28
Seismometer measures?
Components of ground motion
29
A Richter Scale measures _________ of an earthquake.
Magnitude
30
Which of the following comprises the bulk volume of concrete?
Aggregates
31
Which of the following tests determines the consistency of concrete?
Slump test
32
The most important factor in concrete mix.
Water-cement ratio
33
A material condition that causes it to deform permanently even due to slight
increase of stress.
Yielding
34
Fracture caused when a material is subjected to repeated cycles of stress or strain.
Fatigue
35
When a material is loaded over a long period, it causes it to deform continuously
until fracture.
Creep
36
Refers to the lateral displacement of one level relative to the level above or
below.
Storey drift
37
Occurs when the structure’s center of mass does not coincide with its center of
rigidity.
Torsional shear stress
38
A material condition that causes it to deform permanently even due to slight
increase in stress.
Yielding
39
Fracture caused when a material is subjected to repeated cycles of stress or strain.
Fatigue
40
When a material is loaded over a long period, it causes it to deform continuously
until fracture.
Creep
41
The stress at failure
Rupture strength
42
The highest ordinate in a stress-strain diagram.
Ultimate strength
43
The material will have an appreciable elongation or yielding without corresponding
increase in load.
Yield strength
44
A structure is said to be
if, when all its reactions are removed, it does not
undergo any change of shape.
internally stable
45
A structure that changes its shape after the removal of the supports is classified as
internally unstable
46
When the number of reactions is less than 3, the structure is said to be
statically unstable
47
Structures with reactions that are not arranged to provide geometric stability and are either parallel or concurrent are denoted as
geometrically unstable externally