NHI SAFETY INSPECTION OF IN-SERVICE BRIDGES FINAL EXAM COMPLETE 147-QUESTION BANK | CERTIFICATION EXAM PREPARATION | WITH VERIFIED SOLUTIONS & DETAILED DEFINITIONS

NHI SAFETY INSPECTION OF IN-SERVICE BRIDGES FINAL EXAM COMPLETE 147-QUESTION BANK | CERTIFICATION EXAM PREPARATION | WITH VERIFIED SOLUTIONS & DETAILED DEFINITIONS National Highway Institute (NHI) Course No. 130055 • FHWA-NHI-130055 Compliant with 23 CFR 650 Subpart C • National Bridge Inspection Standards (NBIS) Content Coverage: • Bridge Components & Nomenclature • Concrete & Steel Deterioration Mechanisms • Timber Bridge Deficiencies • Bearing Systems & Expansion Joints • Scour & Foundation Evaluation • NBI Condition Ratings (0-9 Scale) • Fracture-Critical Members (FCM) • Load Rating & Posting Requirements • Non-Destructive Testing Methods • Underwater Bridge Inspection • Critical Findings & Emergency Procedures • NBIS Compliance & Documentation Standards ________________________________________ Perfect For: • FHWA-Certified Bridge Inspector Candidates • Professional Engineers (PE) Seeking NBIS Certification • DOT Bridge Inspection Personnel • Public Works & Transportation Engineers • Structural Engineering Consultants • Underwater Bridge Inspection Divers • Fracture-Critical Inspection Teams ________________________________________ ________________________________________ Prepare with confidence using this comprehensive question bank developed from NHI Course 130055 learning objectives and national bridge inspection standards. ________________________________________ 1 of 147 Definition: The sound of "sound" concrete • Thumping • Pitting • Crunching • Pinging Answer: Pinging ________________________________________ 2 of 147 Definition: The sound of delaminated or "unsound" concrete when tapped with a hammer • Pinging • Hollow thumping • Scratching • Rattling Answer: Hollow thumping ________________________________________ 3 of 147 Definition: A type of concrete deterioration characterized by small, shallow, broken pockets on the surface • Scaling • Spalling • Cracking • Potholing Answer: Scaling ________________________________________ 4 of 147 Definition: A concrete deterioration where fragments break away from the surface, forming depressions larger than 1 inch in diameter • Scaling • Spalling • Efflorescence • Delamination Answer: Spalling ________________________________________ 5 of 147 Definition: The separation of concrete along a plane parallel to the surface, forming a layered fracture • Scaling • Spalling • Delamination • Crazing Answer: Delamination ________________________________________ 6 of 147 Definition: A white, powdery crystalline deposit on concrete surfaces caused by water leaching through the material • Rust stain • Efflorescence • Calcite deposit • Leaching residue Answer: Efflorescence ________________________________________ 7 of 147 Definition: The deterioration of concrete caused by chemical reactions between aggregate and alkalis in cement • Alkali-silica reaction (ASR) • Carbonation • Sulfate attack • Freeze-thaw damage Answer: Alkali-silica reaction (ASR) ________________________________________ 8 of 147 Definition: Fine, hairline cracks on the concrete surface forming a random pattern resembling dried mud • Map cracking/crazing • Longitudinal cracking • Transverse cracking • Diagonal cracking Answer: Map cracking/crazing ________________________________________ 9 of 147 Definition: Cracks in concrete that run parallel to the direction of the reinforcement bars • Transverse cracks • Longitudinal cracks • Diagonal cracks • Random cracks Answer: Longitudinal cracks ________________________________________ 10 of 147 Definition: Cracks in concrete that run perpendicular to the direction of the reinforcement bars