NHI Safety Inspection of In-Service Bridges Complete Study Questions with 100% Correct Answers | Latest Edition

NHI Safety Inspection of In-Service Bridges Complete Study Questions with 100% Correct Answers | Latest Edition 1. Post-tensioning - ANSWER Prestressing steel passed through ducts and then tensioned 2. Thermal expansion - ANSWER happens when temperature is increased and decreased 3. Internal stresses - ANSWER Non-structural cracks are the result of... 4. Fair - ANSWER Condition described as having some moderate defects where strength and performance are not affected 5. Orthotropic deck - ANSWER Type of deck that uses flat, thin steel plates stiffened with closely spaced longitudinal steel ribs and a wearing surface 6. Masonry - ANSWER Bridge material that can be split and spalled 7. Bridge Management Elements (BME) - ANSWER Expansion joints, wearing surfaces, and approach slabs 8. Porosity - ANSWER Physical property of concrete that allows the absorption and passage of water under pressure 9. Broken welds - ANSWER Steel grid deck areas exposed to high traffic volumes in the travel lanes can lead to... 10.Expansion due to corrosion - ANSWER Inspect concrete filled-grid steel decks at joints and bridge ends for... 11.Decay - ANSWER Timber deck areas exposed to drainage are to be inspected for... 12.Fatigue - ANSWER Steel deficiency due to repeated variation of normal stress with a tensile component 13.Flexure and Shear - ANSWER Two main types of structural cracks in concrete 14.Shear key joints - ANSWER Area in a precast concrete deck that is inspected for leaking joints, cracks, or other signs of independent action 15.Bearings - ANSWER Part of the bridge that permits longitudinal expansion and contraction 16.20 Percent - ANSWER Percentage of air required for fungi to become active in a timber member 17.Team Leader - ANSWER Person responsible for the enforcement of safety regulations and guidance in proper use of equipment. 18.Physical - ANSWER Primary method for determining steel remaining section or section loss 19.ASR - ANSWER Not a type of corrosion in steel 20.Measuring tools - ANSWER Calipers, crack gauges, and electronic distance meters 21.Simple spans - ANSWER Most common span type for steel rolled beams 22.Welding - ANSWER Most common technique for plate girders to connect top flange to the web in newer construction 23.Through girder - ANSWER Type of girder floorbeam bridge used when vertical clearance is an issue 24.Cantilevered spans - ANSWER Most common span arrangement used with pin and hangar assemblies 25.Shear and torsion - ANSWER Forces that stiffeners help resist in curved multi-plate girder web members 26.Composite deck - ANSWER When the deck and superstructure act together as one unit 27.Through truss - ANSWER Type of truss that included overhead bracing and has the roadway between members