SAFETY INSPECTION OF IN-SERVICE
BRIDGES- ALL TEST ONE
QUESTIONS & VALID CORRECT
ANSWERS
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
BRIDGES- ALL TEST ONE
QUESTIONS & VALID CORRECT
ANSWERS
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
