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WorksheetsCivil Engineering Terms Part 6 (PSAD)
Total questions: 50
Worksheet time: 25mins
The portion in the stress-strain curve beyond which the stress is no longer proportional to strain.
Elastic limit
Limit state
Plastic limit
Proportional limit
A force that will balance one or more unbalanced forces.
load
active force
equilibrant
stress
The ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed.
plasticity
elasticity
tenacity
toughness
Materials having the same composition at any point.
homogeneous
isotropic
orthotropic
heterogeneous
Material property which enables it to undergo large permanent strains before failure
malleability
ductility
elasticity
permanency
Forces generated by a body in motion
static
dynamic
impulse
momentum
Within elastic range, the slope of the straight line portion of the stress- strain curve.
Poisson's ratio
Young's modulus
Elastic limit
Hooke's law
The ratio of lateral strain to longitudinal strain
Poisson's ratio
Young's modulus
Elastic limit
Hooke's law
Within the proportional limit, stress is directly proportional to strain
Hooke's law
Young's modulus
Elastic limit
Poisson's ratio
Energy by virtue of velocity
kinetic
potential
kinesis
work
Which of the following forces determines whether a body will be at rest or in motion?
gravity
impulse
resultant
inertia
Which of the following deals with the forces at rest?
dynamic
kinetic
static
inertia
The ability of the material to deform under tensile stress
malleability
ductility
toughness
tenacity
The ability of the material to absorb energy when it is deformed elastically and release that energy upon unloading.
toughness
stiffness
elasticity
resilience
The ability of the material to absorb energy and plastically deform without fracturing.
toughness
stiffness
elasticity
resilience
Materials having the same strength at any point.
homogeneous
isotropic
orthotropic
heterogeneous
A time dependent prestress loss in pretensioned concrete
expansion
creep
fatigue
relaxation
Tendons are stressed before concrete is poured.
Post-tensioning
Pre-tensioning
reinforcing
pretending
Tendons are stressed after concrete has hardened
Post-tensioning
Pre-tensioning
reinforcing
pretending
The combined effect of external forces acting on a body.
stress
strain
load
deformation
The property of material to undergo large deformation before failure.
malleability
ductility
elasticity
permanency
Strain in a direction at right angles to the direction of the applied force.
Shear strain
Lateral strain
Strain hardening
Parallel strain
The forces that do not meet at a point.
coplanar
concurrent
Non-coplanar
Non-concurrent
This is the point at which the material begins to deform plastically. Beyond this point, even if the stress is removed, the material will have a permanent deformation.
Plastic limit
Proportional limit
Rupture point
Yield point
Which of the following forms is the basis of rigid bodies and strength of materials?
Center of gravity
centroid
Moment of inertia
Any of the above
The concentration of shear stress in the vicinity of the connection.
Shear strain
Shear lag
Shear pod
Shear center
The change in length per unit of length in a linear dimension of a body.
stress
load
strain
deformation
A section that is capable of developing its plastic moment capacity before any local buckling occurs.
Non-compact section
Compact section
Partially compact
Laterally supported
It is a time-dependent deformation due to sustained load.
creep
shrinkage
rupture
fracture
The weakening of a material by repeated loads.
creep
shrinkage
relaxation
fatigue
It is the limit of stress beyond which the strain is not wholly recovered.
Elastic limit
Allowable stress
Proportional limit
Plastic limit
The greatest stress that a material can sustain without any deviation from proportionality of stress to strain.
Elastic limit
Allowable stress
Proportional limit
Plastic limit
It is the tendency of a material to fracture by means of progressive brittle cracking under repeated alternating or cyclic stresses of an intensity considerably below the normal strength.
creep
shrinkage
relaxation
fatigue
The ability of a material to remain deformed after the load which is causing the deformation has been removed. It is a very important property when a material needs to be shaped by bending.
elasticity
ductility
plasticity
fatigue
When a force is applied to a structure, there is a displacement in the direction of the force; it is the ratio of the force divided by the displacement.
toughness
stiffness
elasticity
resilience
Materials which does not show large deformation before fracture.
malleable
ductile
elastic
brittle
Materials with uniformity of properties in all directions; having identical values of a property in all crystallographic directions.
homogeneous
isotropic
orthotropic
heterogeneous
Materials having properties that vary according to the direction of measurement; exhibiting different values of a property in different crystallographic directions.
homogeneous
orthotropic
isotropic
heterogeneous
The maximum stress a material withstands when subjected to an applied load
Allowable stress
Yield point
Ultimate stress
Strike-off
When a metal is strained beyond yield point, an increasing stress is required to produce additional plastic deformation and the metal apparently becomes stronger and more difficult to deform.
Elasticity
Ductility
Strain hardening
Fatigue
It is a single force which produces the same effect as produced by all the given forces acting on a body
equilibrant
resultant
impulse
inertia
The condition existing when the force system acting on a body has a resultant force couple system equal to zero.
balanced
resultant
stable
equilibrium
It refers to an activity involving a force and movement in the direction of the force.
work
Kinetic energy
Potential energy
Inertia
It can be defined as "mass in motion" it depends upon the variables mass and velocity.
momentum
Kinetic energy
Potential energy
work
It is defined as the means by which the response motion of a structural system is reduced as a result of energy loss.
damping
sidesway
drifting
dissipation
It is defined as the difference in lateral deflection between two adjacent stories.
damp
sidesway
drift
dissipation
It describes the severity of an earthquake in terms of its effects on the earth's surface and on humans and their structures.
intensity
scale
magnitude
damage
It is a measure of the energy released during an earthquake.
intensity
scale
magnitude
damage
It refers to a stress at which the material begins to deform plastically.
buckling
relaxing
rupture
yielding
These have properties that differ along three mutually-orthogonal two fold axes of rotational symmetry.
isotropic
homogeneous
orthotropic
endemic
