KDOT Winter Maintenance & Operations 3

Question 1

When plowing a multi-lane highway, what is the standard direction of snow discharge from the plow blade?

Accepted Answer

To the right shoulder side

Answer

Snow is typically discharged to the right (toward the shoulder) to keep it off travel lanes and away from oncoming traffic.

Question 2

What is 'black ice' and why is it especially dangerous?

Accepted Answer

A thin transparent layer of ice nearly invisible to drivers

Answer

Black ice is a thin, nearly transparent glaze of ice on the pavement that is extremely difficult for drivers to detect, making it particularly hazardous.

Question 3

Which road feature is most prone to icing before adjacent road sections during cold weather?

Accepted Answer

Bridge decks and overpasses

Answer

Bridge decks freeze before adjacent roads because cold air can circulate both above and below the structure, removing heat faster than ground-insulated pavement.

Question 4

In KDOT winter operations, what does RWIS stand for?

Accepted Answer

Road Weather Information System

Answer

RWIS (Road Weather Information System) provides real-time data on pavement temperature, air temperature, and precipitation to support winter maintenance decisions.

Question 5

What is the primary hazard to consider when operating a plow truck near highway barriers and guardrails?

Accepted Answer

Blade contact causing damage to barrier and truck

Answer

Plow blades can strike barriers and guardrails, causing costly damage to highway infrastructure and the truck if not properly adjusted.

(KDOT) Certified Kansas Department of Transportation Inspector Practice Test

(KDOT) Certified Kansas Department of Transportation Inspector Practice Test

KDOT Winter Maintenance & Operations 3