PSAD
問題一覧
1
which of the ff deals with forces at rest?
static
2
which of the ff forces determines whether a body will be at rest or in motion.
resultant
3
within proportional limit, the stress is directly proportional to strain
hooke's law
4
energy by virtue of velocity
kinetic
5
the ratio of lateral strain to longitudinal strain.
Poisson's ratio
6
within elastic range, the slope of the straight line portion of the stress-strain curve.
Young's modulus
7
the portion of the stress strain curve beyond which the stress is no longer proportional to the strain
proportional limit
8
materials having the same composition at any point are termed as
homogeneous
9
material property which enables it to under large permanent strains before failure
ductility
10
forces generated by a bodies in motion
dynamic
11
a time dependent prestress loss in pretensioned concrete
relaxation
12
tendons are stressed before concrete ir poured
pre tensioning
13
tendons are stressed after concrete is hardened
post tensioning
14
the ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed
elasticity
15
the ability of the material to deform under tensile stress
ductility
16
the ability of the material to absorb energy when it is deformed elastically, and release that energy upon unloading.
resilience
17
the ability of the material to absorb energy and plastically deform without fracturing
toughness
18
a material having the same strength at any point
homogeneous
19
the material composition is the same but it's mechanical properties are diff in every direction
orthotropic material
20
refers to the tendency of solid materials to return to their original shape after being forces is applied on them. when the forces are removed, the object will return to its initial shape and size.
elasticity
21
refers to the stress at which a material begins to deform plastically.
yielding
22
which of the ff describes the location of an earthquake besides epicenter.
focal depth
23
what does a seismometer measure?
components of ground motion
24
a Richter scale measures ______ of an earthquake
magnitude
25
what will develop if the center of mass and center of rigidity of a structure does not coincide?
torsional shear stress
26
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
27
refers to the lateral displacement of one level relative to the other level above or below
storey drift
28
which of the following best refers to the rigidity of a structure
reciprocal of deflection
29
which of the following best describes liquefaction
sudden drop of shear strength
30
if two springs with stiffness k1 and k2 are arranged in parallel
k=k1+k2
31
the points through which resultant of the resistance to the applied lateral force acts
center of rigidity
32
the point on a structure through which the applied seismic force acts
center of mass
33
refers to the flexibility of a structure
reciprocal of stiffness
問題一覧
1
which of the ff deals with forces at rest?
static
2
which of the ff forces determines whether a body will be at rest or in motion.
resultant
3
within proportional limit, the stress is directly proportional to strain
hooke's law
4
energy by virtue of velocity
kinetic
5
the ratio of lateral strain to longitudinal strain.
Poisson's ratio
6
within elastic range, the slope of the straight line portion of the stress-strain curve.
Young's modulus
7
the portion of the stress strain curve beyond which the stress is no longer proportional to the strain
proportional limit
8
materials having the same composition at any point are termed as
homogeneous
9
material property which enables it to under large permanent strains before failure
ductility
10
forces generated by a bodies in motion
dynamic
11
a time dependent prestress loss in pretensioned concrete
relaxation
12
tendons are stressed before concrete ir poured
pre tensioning
13
tendons are stressed after concrete is hardened
post tensioning
14
the ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed
elasticity
15
the ability of the material to deform under tensile stress
ductility
16
the ability of the material to absorb energy when it is deformed elastically, and release that energy upon unloading.
resilience
17
the ability of the material to absorb energy and plastically deform without fracturing
toughness
18
a material having the same strength at any point
homogeneous
19
the material composition is the same but it's mechanical properties are diff in every direction
orthotropic material
20
refers to the tendency of solid materials to return to their original shape after being forces is applied on them. when the forces are removed, the object will return to its initial shape and size.
elasticity
21
refers to the stress at which a material begins to deform plastically.
yielding
22
which of the ff describes the location of an earthquake besides epicenter.
focal depth
23
what does a seismometer measure?
components of ground motion
24
a Richter scale measures ______ of an earthquake
magnitude
25
what will develop if the center of mass and center of rigidity of a structure does not coincide?
torsional shear stress
26
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
27
refers to the lateral displacement of one level relative to the other level above or below
storey drift
28
which of the following best refers to the rigidity of a structure
reciprocal of deflection
29
which of the following best describes liquefaction
sudden drop of shear strength
30
if two springs with stiffness k1 and k2 are arranged in parallel
k=k1+k2
31
the points through which resultant of the resistance to the applied lateral force acts
center of rigidity
32
the point on a structure through which the applied seismic force acts
center of mass
33
refers to the flexibility of a structure
reciprocal of stiffness