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# PAST-BOARD-EXAM-OBJECTIVE-QUESTIONS-SEC

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```PAST
BOARD
EXAM
OBJECTIVE
QUESTIONS (SEC)
- Materials which have the same
composition/compression at any point.
2012
- Material has the same elastic
properties in all directions.
Resultant
-
Is
Homogeneous
the
force
which
determines
whether the body will be in Equilibrium
or will have a varying state of motion
Ductility
- Property of a material enables it to
under large permanent strains before
Hooke’s Law
failure.
- The principle used in equations related
- Ability of a material to deform/
to the deformation of axially loaded
defuse in the plastic range without
material.
breaking. (2013 &amp; 2016).
- That the stress is proportional to the
strain within the elastic region.
Pre-Tensioning
- It is described herein stressing high
Poisson’s Ratio
strength steel wires before concrete
- The ratio of the lateral to the
hardens.
longitudinal strain is constant.
Post-Tensioning
Young’s Modulus
- It is described herein stressing high
- It is the constant of proportionality
strength steel after the concrete has
that defines the linear relationship
been cast and has attained sufficient
between stress and strain.
strength.
Column
Relaxation
- A structural member that has the
- Is described herein loss of stress
ratio of its unsupported height to its
that takes place with the passage of
least lateral dimension of not less than
time as concrete is held at a constant
3 and is used primarily to support axial
strain.
load.
Resilience / Modulus of Resilience
Kinetic Friction
- Ability of a material to absorb energy
- Retarding force acting opposite of
in the Elastic Range. (2016)
body in motion.
Proportional Limit
- It is the term for the value beyond
which the stress is no longer
proportional to the strain.
2013
Toughness / Modulus of Toughness
- Ability of a material to absorb energy
in the plastic range or fracture point.
(2016)
Elasticity
Reciprocal of Stiffness
- Property of a material which makes it
- Refers to flexibility of structure.
return to its original dimension when
the load is removed.
Orthotropic
- The material has the same composition
Center of Rigidity
at every point but the elastic may not
- It is the point through which the
be
resultant of the resistance to the
-
The
composite
material
applied lateral force acts. (2018)
elastic
properties
in
Eccentricity
- It is the distance between the Center
of Rigidity and Center of Mass.
2017
Soft Story
- One in which the lateral stiffness is
less than 70 percent of the stiffness of
the story above is called _____.
Story Drift
- A Lateral Displacement of one level
relative to the level above or below is
called _____. (2021)
2018
“Liquefaction” is best described as ....
- A sudden drop in the shear strength
of a soil.
Which refers to the Rigidity of a
Structure?
- Deflection
- Reciprocal of Deflection
- Product of Stiffness and Deflection
- Reciprocal of Stiffness
Center of Mass
- It is the point through which the
applied seismic force acts.
the
same
different
from
in
all
directions.
exhibits
one
that
direction
in
the
perpendicular direction.
Focal Depth
- Besides the Epicenter, it describes
the location of the Earthquake.
Actual Displacement or
Seismic/Earthquake Waves
- It is measured by a seismometer.
Magnitude of Earthquake
- It is measured by the Richter Scale
2021
Fatigue
- The material is subjected to repeated
cycles of stress or strain, it causes the
structure to breakdown ultimately
leading to fracture.
Creep
- When a material has to support a load
for a long period of time, what causes it
to continue to deform until a sudden
fracture occurs.
Plasticity
- Condition of a material when it breaks
down and deforms permanently even due
to a slight increase in stress above the
elastic limit.
Resonance
Plasticity
- It occurs when a building period
coincides with the earthquake period.
-
A property of a material where
if the specimen be unloaded, it
Torsion/Torsional Shear Stress
will not return to its original
- It occurs when the structure’s center
length, rather it will retain a
of mass does not coincide with its
permanent elongation sometimes
center of rigidity.
called a permanent set. *
Random objective Questions
Yield stress
Proportional limit
The greatest
-
stress
a
a material is
straight
line
proportionality
between strain and stress *
-
The greatest stress a material is
permanent elongation remaining
specimen
The max. stress a material is
-
The
stress
at
which
the
specimen actually breaks.
Stiffness
Modulus of elasticity
-
great strain
of the curve or the ratio of
stress over the strain
Brittleness
Ductility
-
The ability of a material to
in
the
plastic
to undergo considerable plastic
deformation under tensile load
Implies
the
absence
plastic
deformation
of
any
prior
to
failure.
range
without breakage or the ability
before actual rupture. *
The property of a material to
withstand high stress without
Slope of the straight line portion
deform
strain
Rupture strength
upon complete unloading of the
-
in
capable of developing
capable of developing without a
-
increase
Ultimate stress
Elastic limit
-
marked
without an increase in stress
capable of developing without deviation
from
The stress at which there occurs
Malleability
-
The
property
enabling
it
of
to
a
material
undergo
considerable plastic deformation
under compressive load before
actual rupture.
Toughness
-
The
Brittle material
property
of
a
material
tensile strain up to the point of
loads or shock loads.
rupture
The
Tangent modulus
property
of
enabling
high
without
inducing
a
material
impact
a
stress
in
Specific strength
specific
allowable stress.
unit volume.
Specific modulus
The condition that renders the
further
increase
in
loads.
Diagonal tension
-
Poisson's ratio
Ratio of the Youngs modulus to
the specific weight.
Isotropic material
-
One having the same elastic
properties in all directions at any
The tensile stress that develops
on the diagonals surface.
one point of the body.
Seismograph
-
Is a ground mounted – device
The ratio of lateral strain to
which
axial strain for an unrestrained
displacement of the ground with
member.
respect
Change of volume per unit
volume.
Ductile material &quot;e&quot;
measures
to
the
a
actual
stationary
reference point.
Dilatation
-
to
weight that is the weight per
resisting
-
strength
Ratio of the failure stress to the
load resisting member unfit for
-
The ratio of the ultimate or
tensile
Failure
-
The rate of change of stress
with respect to strain
-
Factor of safety
-
-
loads
excess of the elastic limit.
-
Is one having a relatively small
enabling it to endure high-impact
Resilience
-
-
Intensity
-
It is the oldest useful measure
of
an
earthquake’s
strength
which is based on the damage
Is one having a relatively large
and other observed effects on
tensile strain up to the point of
people,
rupture
features.
buildings
and
other
Dynamic
-
Forces generated by a body in
motion.
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