Tennessee CDL Permit Test - Class A

Number of questions: 50
Passing score: 40
Directions: This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three or four possible answer choices. Test questions come from the Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving.. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
You have made error so far
Passing grade —
10 or fewer errors
With brake drums, what happens if brakes become too hot?
The brakes will become too smooth
The brakes will harden
The brakes may stop working
The air compressor will kick on to cool the brakes
Hydroplaning usually:
Happens with tires properly inflated
Happens at speeds under 15 mph
Happens in areas where water collects on the road
Happens in the evening
When only the trailer has ABS:
There is less chance of jack-knifing
There is an increased chance of jack-knifing
The brakes will not work as effectively as without ABS
The brakes will be more sensitive
After starting a trip while transporting cargo,
You should not inspect the cargo
You should only inspect cargo if others alert you to a problem
The cargo should be inspected after 50 miles to ensure it is properly secured
Escape ramps are:
Ramps to exit the interstate quickly
Ramps to leave the highway and take a two-lane highway
Ramps that can be used by stop runaway vehicles on step downhills x
Ramps that cannot be used by automobiles
Air storage tanks:
Are not allowed on a vehicle
Hold compressed air for the brakes
Should be emptied of air after every trip
How is the parking brake released?
By tapping on the brake pedal three times
Pushing in the brake control knob
The parking brake is automatically released when the accelerator is engaged
Tap the accelerator pedal twice
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