MOT Traffic Control Devices & Placement Standards 2

Question 1

What is the minimum distance a Type III barricade must be placed in advance of a work zone obstruction on a road with a 45 mph speed limit?

Accepted Answer

250 feet

Answer

On roads with a 45 mph speed limit, the taper length and advance placement require devices at approximately 250 feet ahead of the obstruction per MUTCD guidelines.

Question 2

Which retroreflective sheeting grade is the MINIMUM required for temporary traffic control signs used in nighttime work zones?

Accepted Answer

High Intensity (Type III)

Answer

High Intensity retroreflective sheeting (Type III) is the minimum required for temporary traffic control signs in nighttime work zones per MUTCD standards.

Question 3

A channelizing device spacing table in the MUTCD is based primarily on which factor?

Accepted Answer

Posted speed limit of the roadway

Answer

Channelizing device spacing is primarily determined by the posted or statutory speed limit of the roadway as specified in MUTCD tables.

Question 4

When placing cones to create a taper merging two lanes into one, the cone spacing within the taper should be:

Accepted Answer

Uniform and equal throughout

Answer

Cones within a taper should be spaced uniformly throughout the taper length to guide drivers smoothly into the single lane.

Question 5

A Flagger Ahead sign (W20-7a) is classified under what sign category?

Accepted Answer

Warning sign

Answer

The Flagger Ahead sign (W20-7a) is a warning sign, indicated by its diamond shape and yellow background.

(MOT) Maintenance of Traffic Certification Practice Test

(MOT) Maintenance of Traffic Certification Practice Test

MOT Traffic Control Devices & Placement Standards 2