QUIZ NO.
1
Internal stress exerted by the fibers to resist
At a given section of an I beam the the action of outside force is called:
maximum bending stress occurs at the
a) Shearing stress
a) max. shear stress area b) tensile stress
b) neutral axis c) ultimate stress
c) web joint near the flange d) compressive stress
d) outermost
Alloy steel axle under repeated load/stress
The resultant of two or more forces is a will eventually fail if the load/stress is above
the endurance for the steel under
a) couple of forces consideration. The endurance limit of the
b) concurrent of forces steel is therefore
c) momentum
d) resolution of forces a) equal to the allowable stress of the
module of elasticity
Two or more forces acting together, could b) equal to half of the ultimate strength
be replaced by a single force with same c) equal to module of elasticity
effect in a mass called: d) equal to 80% of the elastic limit
a) couple of forces Moment of inertia is also called:
b) resolution of forces
c) resultant a) Modulus of elasticity
d) concurrent of forces b) Weep strength
c) Radius of gyration
The frictional forces depends on coefficient d) None of these
of friction and
Defection of a beam is
a) torque
b) weights of object a) proportional to the modulus of
c) normal of force elasticity and moment of inertia
d) moment b) proportional to the load imposed
and inversely to the length squared
Shear modulus is also known as: c) inversely proportional to the modulus
of elasticity and moment of inertia
a) Shear elasticity d) inversely proportional to the weight
b) poisson’s ratio imposed times the length
c) modulus of elasticity
d) modulus of rigidity Continuous stretching under load even if the
stress is less than the yield point is called:
The maximum stress induced in a material
when subjected to intermittent or repeated a) Plasticity
load without causing failure is called: b) Elasticity
c) Creep
a) Ultimate stress d) Ductility
b) Endurance limit
c) Ultimate strength It is opposite direction of parallel force.
d) Elastic limit
a) concurrent
b) coplanar
c) couple b) strain
d) non coplanar c) poisson’s ratio
d) endurance limit
The ratio of the moment of inertia of the
cross - section of the beam to the section The single force which produces the same
modulus is effect upon a body as two or more forces
acting together is called:
a) equal to the radius of gyration
b) equal to the area of the cross- a) Resultant force
section b) co-planar force
c) measure of a distance c) couple
d) dependent on modulus of elasticity d) non-coplanar force
of beam measure
The ability of metal to resist being crushed is
The differential of the shear equation is called
which of the following:
a) shearing strength
a) bending moment of the beam b) compressive stress
c) torsional strength
b) tensile strength of the beam d) tensile strength
c) slope of the elastic curve
d) load of the beam Finding the resultant of two or more forces is
called:
Could be defined as simply push and pull is
known as a) co-planar
b) non-coplanar forces
a) work c) Acceleration
b) force d) composition of forces
c) inertia
d) power In general, the design stress and factor of
safety are related as follows
The changes in shape or geometry of the
body due to action of a force on it is called a) design stress = ultimate stress times
deformation or factor of safety
b) design stress = ultimate stress divided
a) shearing stress by factor of safety
b) stresses c) factor of safety = design stress
c) compressive stress divided ultimate stress
d) strains d) ultimate stress = factor of safety
divided by design stress
Ability to resist deformation under stress is
called: Stresses that are independent to loads are
known as:
a) plasticity
b) all of these a) Working stresses
c) stiffness b) Operating stresses
d) toughness c) residual stresses
d) shear stresses
The property of a material that relates the
lateral strain to longitudinal strain is called: The ratio of unit lateral deformation to unit
longitudinal deformation is called:
a) stress a) poisson’s ratio
b) willan’s line d) an unbalance of moment exist
c) modulus of elasticity
d) deformation What is the property of a material, which
resists forces acting to pull the material
Separate forces, which can be so apart?
combined are called:
a) shear strength
a) non-concurrent b) tensile strength
b) couple c) torsional strength
c) combined forces d) compressive strength
d) concurrent forces
What is the metal characteristic to withstand
Endurance strength is nearly proportional to forces that causes twisting?
the ultimate strength but not with
a) torsional strength
a) yield strength b) modulus of elasticity
b) design stress c) twisting moment
c) shear stress d) elasticity
d) all of these
The unit deformation is called
The three moment equation may be used to
analyze a a) torsion
b) strain
a) tapered column c) stress
b) continuous beam d) shear
c) endurance limit
d) tensile stress The total amount of permanent extension of
the gage length measured after specimen
Poisson’s ratio is the ratio of has fractured and is expressed as
percentage increase of the original length.
a) shear strain to compressive strain
b) elastic limit to compressive strain a) elongation
c) lateral strain to longitudinal strain b) strain
d) elastic limit to proportional limit c) stress
d) elastic limit
The product of the resultant of all forces
acting on a body and the time that the Strength of a material is that of a stress
resultant acts. intensity determined by considering the
maximum test load to act over the original
a) angular impulse area of the test specimens called
b) angular momentum
c) Linear impulse a) yield point
d) linear momentum b) ultimate strength
c) break strength
The system of forces and opposite collinear d) elastic limit
forces are added, which of the following if
any is true? The maximum stress, which is reached
during a tension test is called
a) equilibrium is destroyed
b) equilibrium is maintained
a) stress
c) none of these is true b) elasticity
c) strain condition upon release of the stress.
d) tensile strength
a) rupture limit
Which of the following is the different of the b) elastic limit
shear equation? c) proportional limit
d) ultimate limit
a) bending moment
b) load on the beam The deformation that results from a stress
c) tensile strength of the beam and is expressed in terms of the amount of
d) slope of the beam deformation per inch.
The change in length per unit original length a) elongation
b) strain
a) strain c) poisson’s ratio
b) stress d) elasticity
c) deformation
d) elastic modulus The internal resistance a material offers to
being deformed and is measured in terms
The ability of material or metal to resist being of applied load.
crushed is
a) strain
a) fatigue strength b) elasticity
b) bending strength c) stress
c) torsional strength d) resilience
d) compressive strength
The maximum stress induced in a material
The ability of a metal to withstand forces when subjected to alternating or repeated
that causes a member to twist. loading without causing failure.
a) shear strength a) Ultimate strength
b) tensile strength b) yield strength
c) bearing strength c) endurance strength
d) torsional strength d) rupture strength
The ratio of stress to strain within the elastic The maximum stress to which a material may
limit is called be subjected before failure occurs is
called:
a) creep
b) modulus of rigidity a) Rupture strength
c) modulus of elasticity b) ultimate strength
d) poisson’s ratio c) Yield strength
d) proportional limit
The ability of metal to withstand loads
without breaking down is termed as
The total deformation measured in the
a) strain direction of the line of stress.
b) stress
c) elasticity a) strain
d) strength b) elasticity
c) elongation
The last point at which a material may be d) contraction
stretched a still return to its underformed
The total resistance that a material offers to
an applied load is called
a) friction torque
b) stress
c) rigidity
d) compressive force
The ability of metal to withstand forces thus
following a number of twist.
a) shear strength
b) bearing strength
c) endurance limit
d) deformation
