KDOT Traffic Signal & Signage Installation 2

Question 1

What is the minimum mounting height for a highway sign over a roadway with no curb, measured from the bottom of the sign to the road surface?

Accepted Answer

7 feet

Answer

MUTCD requires a minimum mounting height of 7 feet from the bottom of the sign to the near edge of the pavement on roads without curbs.

Question 2

When installing a traffic signal cabinet, what is the primary purpose of grounding the cabinet?

Accepted Answer

To protect against electrical faults and lightning strikes

Answer

Grounding the signal cabinet protects equipment and personnel from electrical faults, surges, and lightning strikes.

Question 3

According to KDOT standards, what retroreflective sheeting material is typically required for regulatory signs on the state highway system?

Accepted Answer

High Intensity Prismatic (Type III) or higher

Answer

KDOT and MUTCD generally require High Intensity Prismatic (Type III) or higher retroreflective sheeting for regulatory signs on state highways.

Question 4

A traffic signal phase refers to which of the following?

Accepted Answer

The time allocated to a specific movement or set of movements receiving the right-of-way

Answer

A signal phase is the portion of the signal cycle allocated to one or more traffic movements receiving simultaneous right-of-way.

Question 5

What clearance distance must typically be maintained between the face of a sign and the edge of the traveled way on a rural highway?

Accepted Answer

6 feet

Answer

MUTCD specifies a minimum lateral clearance of 6 feet between the edge of the traveled way and the face of roadside signs on rural highways.

(KDOT) Certified Kansas Department of Transportation Inspector Practice Test