ARCH 331 - Quiz 1 Answered Correctly Latest Update 2025 Graded A+
concurrent force system - Answers all forces act through a single point
graphical truss analysis (or Maxwell's diagram) - Answers analysis using force polygons based on the
joint loads and angles of the truss analysis
structural system materials - Answers wood, steel, reinforced concrete, masonry and composite
construction
cable force - Answers cables are in tension with the force in the direction of the geometry of the cable
(neglecting gravity)
special truss member configuration with two members - Answers Two members (or forces) in line have
equal forces. Two members out of line must have zero force in each.
coplanar force system - Answers all forces act in the same place
truss - Answers an assembly of shorter members which is used to span horizontally, and commonly is
used for large spans
parallelogram law - Answers the method applied to determine the resultant of two vectors by
constructing parallel lines
internal forces - Answers forces that are within bodies, or at connections between bodies
compression - Answers an action, or stress that shortens or pushes
moment of a force - Answers the vector quantity represented by the product of a force with the
perpendicular lever arm to some axis, or the tendency of a force to produce a rotation for a body
pin connections - Answers connections between two or more bodies that only resist translation, and do
not resist rotation
external forces - Answers forces that are applied or act on bodies
light loads and structure type - Answers Surface forming elements appropriate. Joints or trusses at
regular intervals.
assumptions for analysis - Answers the truss members have force only running through the pins (axial
forces) and any bending is negligible
special truss member configurations with three members - Answers Three members (or forces) with two
in line have will have equal forces of the ones in line. The other must have zero force.
one-way systems - Answers characterized by elements that channel load in one direction only
parallel force system - Answers all forces are parallel
, horizontal span to depth relationship - Answers The depth squared is related to the length. Increasing
the span will require more than a proportional depth increase.
static and friction - Answers the maximum friction force that is a magnitude based on the coefficient of
static friction and the normal of an object in contact with a material that will maintain equllibrium
number of levels in horizontal systems - Answers a classification system to describe how many
horizontal collectors are used, for example, joist with beams is a two-level system
live load - Answers In the general sense, any load that comes and goes with time. As a specific category
of live load, it generally refers to occupancy (people)
impact load - Answers a load from an impact which is significantly higher than the same load applied
gradually
structural system organization schemes - Answers one-way, two-way, tubes, braced and unbraced
weight - Answers the force due to the acceleration of gravity on mass
tension - Answers an action, force, or stress that elongates or pulls
components of a force - Answers the resolution of a force into vectors, commonly orthogonal, along an
axis, which when added, are equivalent to the original force
sin, cos, and tan - Answers trigonometric functions describing the relationships between sides of a right
triangle
equillibrium - Answers the condition when all forces and moments have no tendency to translate or
rotate a body (i.e. at rest)
space force system - Answers Forces cannot be categorized into a planar system. The force have no
common characteristics.
free body diagram - Answers the representation of a body or a system with only forces, and no attached
or supporting elements
opposite, adjacent, and hypotenuse - Answers names given to the sides of a right triangle with respect
to the angle defined
moment couple - Answers an arrangement of two equal and opposite parallel forces separated by a
distance which have only rotational effects on a body
analysis - Answers using the methodology and structural tools to evaluate the loads, stresses, moments,
and displacements in a system to compare with design limits
colinear force system - Answers all forces act on the same time
wind load - Answers equivalent load as a result of wind gust or wind pressure
concurrent force system - Answers all forces act through a single point
graphical truss analysis (or Maxwell's diagram) - Answers analysis using force polygons based on the
joint loads and angles of the truss analysis
structural system materials - Answers wood, steel, reinforced concrete, masonry and composite
construction
cable force - Answers cables are in tension with the force in the direction of the geometry of the cable
(neglecting gravity)
special truss member configuration with two members - Answers Two members (or forces) in line have
equal forces. Two members out of line must have zero force in each.
coplanar force system - Answers all forces act in the same place
truss - Answers an assembly of shorter members which is used to span horizontally, and commonly is
used for large spans
parallelogram law - Answers the method applied to determine the resultant of two vectors by
constructing parallel lines
internal forces - Answers forces that are within bodies, or at connections between bodies
compression - Answers an action, or stress that shortens or pushes
moment of a force - Answers the vector quantity represented by the product of a force with the
perpendicular lever arm to some axis, or the tendency of a force to produce a rotation for a body
pin connections - Answers connections between two or more bodies that only resist translation, and do
not resist rotation
external forces - Answers forces that are applied or act on bodies
light loads and structure type - Answers Surface forming elements appropriate. Joints or trusses at
regular intervals.
assumptions for analysis - Answers the truss members have force only running through the pins (axial
forces) and any bending is negligible
special truss member configurations with three members - Answers Three members (or forces) with two
in line have will have equal forces of the ones in line. The other must have zero force.
one-way systems - Answers characterized by elements that channel load in one direction only
parallel force system - Answers all forces are parallel
, horizontal span to depth relationship - Answers The depth squared is related to the length. Increasing
the span will require more than a proportional depth increase.
static and friction - Answers the maximum friction force that is a magnitude based on the coefficient of
static friction and the normal of an object in contact with a material that will maintain equllibrium
number of levels in horizontal systems - Answers a classification system to describe how many
horizontal collectors are used, for example, joist with beams is a two-level system
live load - Answers In the general sense, any load that comes and goes with time. As a specific category
of live load, it generally refers to occupancy (people)
impact load - Answers a load from an impact which is significantly higher than the same load applied
gradually
structural system organization schemes - Answers one-way, two-way, tubes, braced and unbraced
weight - Answers the force due to the acceleration of gravity on mass
tension - Answers an action, force, or stress that elongates or pulls
components of a force - Answers the resolution of a force into vectors, commonly orthogonal, along an
axis, which when added, are equivalent to the original force
sin, cos, and tan - Answers trigonometric functions describing the relationships between sides of a right
triangle
equillibrium - Answers the condition when all forces and moments have no tendency to translate or
rotate a body (i.e. at rest)
space force system - Answers Forces cannot be categorized into a planar system. The force have no
common characteristics.
free body diagram - Answers the representation of a body or a system with only forces, and no attached
or supporting elements
opposite, adjacent, and hypotenuse - Answers names given to the sides of a right triangle with respect
to the angle defined
moment couple - Answers an arrangement of two equal and opposite parallel forces separated by a
distance which have only rotational effects on a body
analysis - Answers using the methodology and structural tools to evaluate the loads, stresses, moments,
and displacements in a system to compare with design limits
colinear force system - Answers all forces act on the same time
wind load - Answers equivalent load as a result of wind gust or wind pressure
