MOT Quality Assurance & Inspections 5

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?

Accepted Answer

Apply new temporary markings immediately since faded markings can misdirect drivers

Answer

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?

Accepted Answer

Road closed ahead; inspector checks that it spans the full lane width and is properly retroreflective

Answer

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?

Accepted Answer

To independently evaluate contractor compliance with the TCP and report findings without directing work

Answer

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:

Accepted Answer

7 feet to allow clearance over pedestrian pathways

Answer

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:

Accepted Answer

A safety deficiency — attenuators must be deployed to protect workers in the downstream buffer

Answer

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.

(MOT) Maintenance of Traffic Certification Practice Test

(MOT) Maintenance of Traffic Certification Practice Test

MOT Quality Assurance & Inspections 5