NHI 130055 Final UPDATED
QUESTIONS WITH ANSWERS.
3 functions of bearing - CORRECT ANSWER✅✅Transmit loads, permit longitudinal
movement of superstructure, allow rotation
4 basically parts common in most bearing - CORRECT ANSWER✅✅Sole plate,
masonry plate, bearing device, anchor bolts
Abutment - CORRECT ANSWER✅✅the substructure at the ends of a bridge span or
dam whereon the structure's superstructure rests or contacts.
acoustic emission - CORRECT ANSWER✅✅Elastic waves generated by releasing
energy to listen for existing flaws. Attached ultrasonic microphone to steel
Acoustic tomography for timber - CORRECT ANSWER✅✅Advanced method beneficial
for detecting deteriorated regions. Creates 2D images by using stress waves from
multiple transmitters
Advanced method - CORRECT ANSWER✅✅Acoustic tomography and transverse
vibration are
agradation - CORRECT ANSWER✅✅Increase in sediment
Arch and frame culverts primary member - CORRECT ANSWER✅✅Culvert barrel,
frame and footing
Are shear zones mostly located near end of span or mid span - CORRECT
ANSWER✅✅End of span
bascule bridge - CORRECT ANSWER✅✅A movable bridge consisting of one or two
opening leafs equipped with balancing counterweights that ease and speed up their
operation.
Bent - CORRECT ANSWER✅✅Have a cap supported by 2 or more columns and
maybe individual footings (if there are footing). May also have piles instead of columns
Box culvert primary member - CORRECT ANSWER✅✅Top slab, bottom slab, walls
, Bridge culverts - CORRECT ANSWER✅✅Must be wider than 20 feet from outer most
walls
brittle fracture - CORRECT ANSWER✅✅fracture that occurs by rapid crack
propagation and without appreciable macroscopic deformation
cable-stayed bridge - CORRECT ANSWER✅✅a bridge in which the roadway deck is
suspended from cables anchored to one or more towers
Cast in place culvert - CORRECT ANSWER✅✅Allows for culvert to be designed for
specific requirements
channel protection - CORRECT ANSWER✅✅Devices considered to be counter
measures to slow down scour and instability
Cohesive - CORRECT ANSWER✅✅Type of bank material is most resistant to erosion
Column pier - CORRECT ANSWER✅✅Pier often used when narrow superstructure
width required
Column/open bent - CORRECT ANSWER✅✅Common for highway. Have separate
footings
Complex steel superstructure - CORRECT ANSWER✅✅Suspension, cable stayed,
movable
composite - CORRECT ANSWER✅✅When superstructure (girder or stringer) built into
deck
Compression - CORRECT ANSWER✅✅An arch is in: tension or compression
compression zone - CORRECT ANSWER✅✅Top of girder at midspan and bottom of
girder at end of span
contraction scour - CORRECT ANSWER✅✅The removal of the material under the
structure only. (Ice jams can cause this)
Coring - CORRECT ANSWER✅✅Destructive method that Takes out sample of wood
Crack propagation gage - CORRECT ANSWER✅✅Monitor length of cracks. Installs
wires perpendicular to crack. If crack propagates, wires brake
culvert - CORRECT ANSWER✅✅artificial channel for water; drain crossing under a
road, created from one or more barrels
QUESTIONS WITH ANSWERS.
3 functions of bearing - CORRECT ANSWER✅✅Transmit loads, permit longitudinal
movement of superstructure, allow rotation
4 basically parts common in most bearing - CORRECT ANSWER✅✅Sole plate,
masonry plate, bearing device, anchor bolts
Abutment - CORRECT ANSWER✅✅the substructure at the ends of a bridge span or
dam whereon the structure's superstructure rests or contacts.
acoustic emission - CORRECT ANSWER✅✅Elastic waves generated by releasing
energy to listen for existing flaws. Attached ultrasonic microphone to steel
Acoustic tomography for timber - CORRECT ANSWER✅✅Advanced method beneficial
for detecting deteriorated regions. Creates 2D images by using stress waves from
multiple transmitters
Advanced method - CORRECT ANSWER✅✅Acoustic tomography and transverse
vibration are
agradation - CORRECT ANSWER✅✅Increase in sediment
Arch and frame culverts primary member - CORRECT ANSWER✅✅Culvert barrel,
frame and footing
Are shear zones mostly located near end of span or mid span - CORRECT
ANSWER✅✅End of span
bascule bridge - CORRECT ANSWER✅✅A movable bridge consisting of one or two
opening leafs equipped with balancing counterweights that ease and speed up their
operation.
Bent - CORRECT ANSWER✅✅Have a cap supported by 2 or more columns and
maybe individual footings (if there are footing). May also have piles instead of columns
Box culvert primary member - CORRECT ANSWER✅✅Top slab, bottom slab, walls
, Bridge culverts - CORRECT ANSWER✅✅Must be wider than 20 feet from outer most
walls
brittle fracture - CORRECT ANSWER✅✅fracture that occurs by rapid crack
propagation and without appreciable macroscopic deformation
cable-stayed bridge - CORRECT ANSWER✅✅a bridge in which the roadway deck is
suspended from cables anchored to one or more towers
Cast in place culvert - CORRECT ANSWER✅✅Allows for culvert to be designed for
specific requirements
channel protection - CORRECT ANSWER✅✅Devices considered to be counter
measures to slow down scour and instability
Cohesive - CORRECT ANSWER✅✅Type of bank material is most resistant to erosion
Column pier - CORRECT ANSWER✅✅Pier often used when narrow superstructure
width required
Column/open bent - CORRECT ANSWER✅✅Common for highway. Have separate
footings
Complex steel superstructure - CORRECT ANSWER✅✅Suspension, cable stayed,
movable
composite - CORRECT ANSWER✅✅When superstructure (girder or stringer) built into
deck
Compression - CORRECT ANSWER✅✅An arch is in: tension or compression
compression zone - CORRECT ANSWER✅✅Top of girder at midspan and bottom of
girder at end of span
contraction scour - CORRECT ANSWER✅✅The removal of the material under the
structure only. (Ice jams can cause this)
Coring - CORRECT ANSWER✅✅Destructive method that Takes out sample of wood
Crack propagation gage - CORRECT ANSWER✅✅Monitor length of cracks. Installs
wires perpendicular to crack. If crack propagates, wires brake
culvert - CORRECT ANSWER✅✅artificial channel for water; drain crossing under a
road, created from one or more barrels
