Question

To prevent fatigue while driving, you should:

Answers

Keep the cab warm.

Keep the cab cool.

Keep the cab poorly ventilated.

Close the vents.

Explanation

A hot, poorly-ventilated area can make a person sleepy. Opening a window, opening a vent, or using the air conditioning can help keep the cab cool and reduce the risk of fatigue.

This questions appears in the following tests:

Colorado Class B Knowledge Test

Delaware Double

Georgia Class B Knowledge Test

Illinois Passenger

Indiana Class A Knowledge Test

Indiana Double

Minnesota Class B Knowledge Test

Minnesota Double

Montana Double

North Carolina Class B Knowledge Test

South Carolina Passenger

West Virginia Class A Knowledge Test