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WorksheetsStructural - Loads and Forces, Stress and Strain - 03
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
The point, at which the total area of a plane figure is assumed to be concentrated.
a)
Centroid
b)
Central
c)
Center
d)
Centride
2.
Quantity that determines the torque needed for a desired angular acceleration about a rotational axis, akin to how mass determines the force needed for a desired acceleration.
a)
Moment of Inertia
b)
Moment
c)
Moment Arm
d)
Inertia
3.
Ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed.
a)
Elasticity
b)
Toughness
c)
Ductility
d)
Malleability
4.
Physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking.
a)
Ductility
b)
Elasticity
c)
Toughness
d)
Malleability
5.
Physical property of metals that defines their ability to be hammered, pressed, or rolled into thin sheets without breaking.
a)
Malleability
b)
Elasticity
c)
Ductility
d)
Toughness
6.
Ability of a material to absorb energy and plastically deform without fracturing.
a)
Toughness
b)
Elasticity
c)
Ductility
d)
Malleability
7.
Measures the deformation in the material in a direction perpendicular to the direction of the applied force.
a)
Poisson's Ratio
b)
Poison's Ratio
c)
Poissan's Ratio
d)
Pissoin's Ratio
8.
Change of the shape of the body as a reaction to applied stress. This deformation is only temporary and once the stress is released, the undeformed shape of the body is restored.
a)
Elastic Deformation
b)
Stress Relaxation
c)
Creep
d)
Fatigue
e)
Permanent Stress
9.
The tendency of a solid material to move slowly or deform permanently under the influence of persistent mechanical stresses.
a)
Creep
b)
Elastic Deformation
c)
Stress Relaxation
d)
Fatigue
e)
Permanent Stress
10.
The initiation and propagation of cracks in a material due to cyclic loading.
a)
Fatigue
b)
Elastic Deformation
c)
Creep
d)
Stress Relaxation
e)
Permanent Stress
11.
An irreversible deformation that remains in a structure or material after it has been subjected to stress.
a)
Permanent Stress
b)
Elastic Deformation
c)
Creep
d)
Fatigue
e)
Stress Relaxation
12.
Observed decrease in stress in response to strain generated in the structure.
a)
Stress Relaxation
b)
Elastic Deformation
c)
Creep
d)
Fatigue
e)
Permanent Stress
13.
The measure of the rigidity of the body, given by the ratio of shear stress to shear strain.
a)
Shear Modulus
b)
Modulus of Resilience
c)
Modulus of Toughness
d)
The Modulus of Elasticity
14.
Defined as the maximum energy that can be absorbed per unit volume without creating a permanent distortion.
a)
Modulus of Resilience
b)
Modulus of Toughness
c)
The Modulus of Elasticity
d)
Shear modulus
15.
Ability of a material to absorb energy in plastic deformation.
a)
Modulus of Toughness
b)
Modulus of Resilience
c)
The Modulus of Elasticity
d)
Shear modulus
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