Iowa Motorcycle Permit Test Practice Questions - Iowa DOT Motorcycle Knowledge Test (Class M Endorsement) Exam

On a country road during corn or soybean harvest, the road surface may be slippery because:

Asphalt always becomes slippery in the fall Crop dust and plant material from harvesting can settle on the road and reduce traction, especially when damp Iowa law applies oil to rural roads each fall Tractors always leak coolant

Correct Answer:

Crop dust and plant material from harvesting can settle on the road and reduce traction, especially when damp

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