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CDL Practice Test
General Knowledge
Air Brakes
Combination Vehicles
Doubles and Triples
Tanker Vehicles
Hazardous Materials
Transporting Passengers
CDL Hazardous Materials Practice Test
Question 1 of 3
You're carrying hazardous materials. How often must you stop and check your dual tires?
A
Every 200 miles or every 4 hours
B
Every 100 miles or every 2 hours
C
Once during the trip
D
Every 300 miles or every 6 hours
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