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Texas CDL Permit Test - Knowledge 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 70-question test. Test questions come from the Texas Commercial Motor Vehicle Drivers Handbook. Each question has four answer choices. To pass, applicants must answer 56 questions correctly. Test questions come from the Texas Commercial Motor Vehicle Drivers Handbook. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination Vehicles, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving. Endorsemetns that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, Doubles/Triples, HazMat and Tank, Air Brakes and School bus.
You have made error so far
Passing grade —
10 or fewer errors
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8.

Which type of brakes do most heavy-duty vehicles have?

Air brakes
Solid brakes
Liquid brakes
Gravity brakes
9.

When driving down a steep grade, your brakes may fade. What happens if brakes fade?

They become quieter.
They become less effective.
They work better than usual.
They work differently from front to back.
10.

To help your vehicle be seen by others:

Headlights should be clean.
Headlights should be turned off during the day.
Headlights should be covered with grease.
Headlights should only be used in the rain.
11.

What can happen if a parking brake is used in very wet weather when temperatures are below freezing?

The brakes will squeak.
The brakes may freeze so the vehicle cannot move.
The brakes may suddenly release by themselves.
The brakes may explode.
12.

A vehicle should be equipped with all of the following, except:

A fire extinguisher.
Spare electrical fuses.
Warning devices for parked vehicles, such as flares.
A spotlight.
13.

The service brake system:

Applies and releases the brakes when you press the brake pedal while driving normally.
Applies and releases the parking brakes.
Applies and releases the emergency brake.
Applies and releases the axle brake.
14.

A driver should always:

Stay in the right lane.
Have an emergency plan.
Stay in the left lane.
Drive above the speed limit.
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