Safety Inspection of In-Service Bridges – All Test One Study Guide and
Practice Questions
Dead Load, Primary Live Load, Secondary Live Load - correct answer ✔✔ The three principal
categories of bridge loadings
dead load - correct answer ✔✔ a static load due to the weight of the structure itself
dead load types - correct answer ✔✔ Initial and Superimposed
Initial Dead Load - correct answer ✔✔ Loads before concrete deck is hardened
Superimposed Dead Load - correct answer ✔✔ Loads applied after concrete deck is hardened
Primary Live Load - correct answer ✔✔ Moving Vehicular Loads
Standard Vehicular Loadings Used - correct answer ✔✔ H20-44 (two axel) and HS20-44 (three
axel)
Shear - correct answer ✔✔ A force which results from equal but opposite transverse forces,
which tend to slide one section of a member pas an adjacent section
Axial Force - correct answer ✔✔ A force that is a push or pull type force which acts in the long
direction of the member.
Torsion - correct answer ✔✔ A force resulting from an external moment, which tends to rotate
or twist a member about its longitudinal axis
,Moment - correct answer ✔✔ A force developed when an external load applied transversely to
a bridge member causes its to bend.
Wind load on the structure is considered a primary live load. (T/F) - correct answer ✔✔ False
Material toughness is not just related to strength. (T/F) - correct answer ✔✔ True
Dead loads are considered full-time permanent loads (T/F) - correct answer ✔✔ True
Ductility - correct answer ✔✔ the amount of elastic deformation a material undergoes prior to
breaking
Strain is a gradual, continuing irreversible deformation due to constant stress level below yield
stress. (T/F) - correct answer ✔✔ False
Reaction - correct answer ✔✔ A force provided by a support that is equal but opposite to the
force transmitted from a member to its support
Composite - correct answer ✔✔ Structure in which deck acts together with beams to resist the
loads.
Cantilever - correct answer ✔✔ A span with one end restrained against rotation and deflection
and the other end completely free
Internal Redundancy - correct answer ✔✔ Bridge member contains several elements, which are
mechanically fastened together so that multiple load paths are formed.
Vehicles - correct answer ✔✔ Primary Live Load
, Concrete Deck - correct answer ✔✔ Dead Load
Pedestrian Load - correct answer ✔✔ Secondary Live Load
Ice Pressure - correct answer ✔✔ Secondary Live Load
Parapets - correct answer ✔✔ Dead Load
Stress - correct answer ✔✔ Force per unit area and denotes the intensity of an internal force
Fatigue - correct answer ✔✔ Material failure, which occurs at a stress level below the elastic
limit and is due to repetitive loading
Toughness - correct answer ✔✔ Measure of the energy required to break a material
Shear is a force developed when an external load applied transversely to a bridge member
causes it to bend (T/F) - correct answer ✔✔ False
Elongation is the tendency of a member to extend or stretch when subjected to a compressive
force (T/F) - correct answer ✔✔ False
Rotational movement in bridges is a direct result of live load deflection and occurs with greatest
magnitude at the bridge supports. (T/F) - correct answer ✔✔ True
Load Path Redundancy - correct answer ✔✔ If one member were to fail, load would be
redistributed to other members and bridge failure would not occur.
Practice Questions
Dead Load, Primary Live Load, Secondary Live Load - correct answer ✔✔ The three principal
categories of bridge loadings
dead load - correct answer ✔✔ a static load due to the weight of the structure itself
dead load types - correct answer ✔✔ Initial and Superimposed
Initial Dead Load - correct answer ✔✔ Loads before concrete deck is hardened
Superimposed Dead Load - correct answer ✔✔ Loads applied after concrete deck is hardened
Primary Live Load - correct answer ✔✔ Moving Vehicular Loads
Standard Vehicular Loadings Used - correct answer ✔✔ H20-44 (two axel) and HS20-44 (three
axel)
Shear - correct answer ✔✔ A force which results from equal but opposite transverse forces,
which tend to slide one section of a member pas an adjacent section
Axial Force - correct answer ✔✔ A force that is a push or pull type force which acts in the long
direction of the member.
Torsion - correct answer ✔✔ A force resulting from an external moment, which tends to rotate
or twist a member about its longitudinal axis
,Moment - correct answer ✔✔ A force developed when an external load applied transversely to
a bridge member causes its to bend.
Wind load on the structure is considered a primary live load. (T/F) - correct answer ✔✔ False
Material toughness is not just related to strength. (T/F) - correct answer ✔✔ True
Dead loads are considered full-time permanent loads (T/F) - correct answer ✔✔ True
Ductility - correct answer ✔✔ the amount of elastic deformation a material undergoes prior to
breaking
Strain is a gradual, continuing irreversible deformation due to constant stress level below yield
stress. (T/F) - correct answer ✔✔ False
Reaction - correct answer ✔✔ A force provided by a support that is equal but opposite to the
force transmitted from a member to its support
Composite - correct answer ✔✔ Structure in which deck acts together with beams to resist the
loads.
Cantilever - correct answer ✔✔ A span with one end restrained against rotation and deflection
and the other end completely free
Internal Redundancy - correct answer ✔✔ Bridge member contains several elements, which are
mechanically fastened together so that multiple load paths are formed.
Vehicles - correct answer ✔✔ Primary Live Load
, Concrete Deck - correct answer ✔✔ Dead Load
Pedestrian Load - correct answer ✔✔ Secondary Live Load
Ice Pressure - correct answer ✔✔ Secondary Live Load
Parapets - correct answer ✔✔ Dead Load
Stress - correct answer ✔✔ Force per unit area and denotes the intensity of an internal force
Fatigue - correct answer ✔✔ Material failure, which occurs at a stress level below the elastic
limit and is due to repetitive loading
Toughness - correct answer ✔✔ Measure of the energy required to break a material
Shear is a force developed when an external load applied transversely to a bridge member
causes it to bend (T/F) - correct answer ✔✔ False
Elongation is the tendency of a member to extend or stretch when subjected to a compressive
force (T/F) - correct answer ✔✔ False
Rotational movement in bridges is a direct result of live load deflection and occurs with greatest
magnitude at the bridge supports. (T/F) - correct answer ✔✔ True
Load Path Redundancy - correct answer ✔✔ If one member were to fail, load would be
redistributed to other members and bridge failure would not occur.
