MOT Quality Assurance & Inspections 5 — Questions and Answers
Question 1: A QA audit reveals that temporary pavement markings in a lane shift have faded below minimum retroreflectivity. What is the prioritized corrective action?
- Schedule remarking for the next available maintenance window
- Apply new temporary markings immediately since faded markings can misdirect drivers (Correct answer)
- Remove all markings and rely on cones only
- Post a sign warning of faded markings
Correct answer: Apply new temporary markings immediately since faded markings can misdirect drivers
Faded pavement markings that fall below retroreflectivity minimums must be immediately restored because drivers rely on them for lane guidance.
Question 2: What does a 'Type 3 barricade' indicate to drivers when used in a MOT setup, and what is the QA inspector's check for it?
- Road closed ahead; inspector checks that it spans the full lane width and is properly retroreflective (Correct answer)
- Speed reduction zone; inspector checks cone spacing
- Worker present area; inspector checks flagger position
- End of work zone; inspector checks sign height
Correct answer: Road closed ahead; inspector checks that it spans the full lane width and is properly retroreflective
Type 3 barricades signal road closure; inspectors must verify they span the full lane width and that all stripes are properly retroreflective.
Question 3: Which of the following best describes the role of a third-party quality assurance inspector in a work zone?
- To direct flaggers and set cone placement personally
- To independently evaluate contractor compliance with the TCP and report findings without directing work (Correct answer)
- To approve TCP changes in the field on behalf of the engineer
- To operate equipment when the crew is understaffed
Correct answer: To independently evaluate contractor compliance with the TCP and report findings without directing work
Third-party QA inspectors independently evaluate compliance and report findings; they observe and document rather than direct or perform the contractor's work.
Question 4: An inspector finds that signs are mounted at 5 feet height in an urban work zone where pedestrian activity is present. MUTCD recommends a minimum of:
- 5 feet — already compliant
- 7 feet to allow clearance over pedestrian pathways (Correct answer)
- 4 feet for work zones only
- 8 feet minimum in all situations
Correct answer: 7 feet to allow clearance over pedestrian pathways
MUTCD requires a minimum 7-foot clearance for signs over sidewalks and pedestrian pathways to prevent head-strike hazards.
Question 5: During inspection, a crash attenuator (impact attenuator truck) is found parked with its attenuator in the raised/stowed position in an active work zone. This is:
- Acceptable if the truck is on the shoulder
- A safety deficiency — attenuators must be deployed to protect workers in the downstream buffer (Correct answer)
- Required by OSHA when the truck engine is running
- Acceptable if no traffic impact has occurred in 24 hours
Correct answer: A safety deficiency — attenuators must be deployed to protect workers in the downstream buffer
Crash attenuators must be deployed (lowered) whenever the truck is in the buffer zone protecting workers; a stowed attenuator defeats the truck's protective purpose.
Question 6: Which of the following is an example of a 'proactive' quality assurance measure in a MOT program?
- Investigating crashes after they occur in the work zone
- Conducting pre-installation checks of TCP plans before work begins (Correct answer)
- Replacing damaged signs after a complaint is filed
- Filing incident reports after a flagger is struck
Correct answer: Conducting pre-installation checks of TCP plans before work begins
Proactive QA involves reviewing and verifying plans before work starts to prevent deficiencies, rather than responding to failures after they occur.
Question 7: A state DOT inspector requests all TTC inspection records for the past 90 days. The contractor cannot produce them. What is the likely consequence?
- No consequence if the work zone looks compliant currently
- Potential contract violation, stop-work order, and financial penalties for failing to maintain required documentation (Correct answer)
- The inspector must accept verbal confirmation instead
- Records only need to be produced at project closeout
Correct answer: Potential contract violation, stop-work order, and financial penalties for failing to maintain required documentation
Failure to produce required TTC inspection documentation can result in contract violations, stop-work orders, and financial penalties on federally regulated projects.
MOT Quality Assurance & Inspections 5
A QA audit reveals that temporary pavement markings in a lane shift have faded below minimum retroreflectivity.
What is the prioritized corrective action?