This educational application supplements, but does not replace, the official AASHTO LRFD Bridge Design Specifications, applicable state DOT manuals, project specifications, and professional engineering judgment.
Graded quiz
Chapter 19 — Bridge Inspection, Evaluation, and Load Rating (8 questions)
Chapter 19 — Bridge Inspection, Evaluation, and Load Rating (8 questions)
8 questions · PE-exam format · 70% to pass · attempts save to your progress record when signed in.
Work each item to the requested precision. Use the Show clue button only after an honest attempt — hints reveal the AASHTO section and setup, not the answer.
- Q1NBI condition rating 4 (per FHWA Recording & Coding Guide) corresponds to:
- Q2AASHTO MBE §6A.4.2 LRFR Inventory rating factor uses γ_LL =
- Q3LRFR Inventory. φR_n = 6500 k-ft, M_DC = 1000 k-ft, M_DW = 200 k-ft, M_LL+IM = 1800 k-ft. Compute RF_Inv = (φR_n − 1.25·M_DC − 1.50·M_DW) / (1.75·M_LL+IM).-
- Q4Same girder — compute the Operating rating. RF_Op = (φR_n − 1.25·M_DC − 1.50·M_DW) / (1.35·M_LL+IM).-
- Q5The NBIS routine inspection interval maximum under the 2022 rule is:
- Q6Fracture-critical inspection is required for members whose failure would result in:
- Q7Section loss on a steel flange. Original t = 0.75 in, measured minimum t = 0.55 in. Compute percent loss and remaining capacity ratio (F_y·t_remaining/F_y·t_orig).-
- Q8A permit rating (MBE §6A.4.5) is used when:
Submit worked PE solutions (PDF)
Upload a PDF of your handwritten or typed worked-out solutions. Your instructor receives it directly and can grade partial credit that the auto-grader missed.
No file selected