2026 Free Arkansas DMV Air Brakes Class B Test 1 (25 Questions And Complete Answers)
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What kind of brakes do most newer heavy-duty trucks use?
1. Single air brakes
2. Dual air brakes
3. Triple air brakes
1. Single air brakes
2. Dual air brakes
3. Triple air brakes
Dual air brakes
The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
1. 1 psi
2. 2 psi
3. 3 psi
1. 1 psi
2. 2 psi
3. 3 psi
2 psi
A low air pressure warning signal:
1. Is not recommended on vehicles with air brakes.
2. Is required on vehicles with air brakes.
3. Is optional on vehicles with air brakes.
1. Is not recommended on vehicles with air brakes.
2. Is required on vehicles with air brakes.
3. Is optional on vehicles with air brakes.
Is required on vehicles with air brakes.
On a truck with air brakes, the braking system’s air compressor:
1. Pumps air into the air storage tanks.
2. Fills the tires.
3. Moves air to the back of the truck.
4. Cleans the brakes.
1. Pumps air into the air storage tanks.
2. Fills the tires.
3. Moves air to the back of the truck.
4. Cleans the brakes.
Pumps air into the air storage tanks.
Truck tractors with air brakes built on or after March 1, 1997 must have:
1. An Anti-Lock Braking System (ABS).
2. Bluetooth.
3. A rear back-up camera.
4. GPS.
1. An Anti-Lock Braking System (ABS).
2. Bluetooth.
3. A rear back-up camera.
4. GPS.
An Anti-Lock Braking System (ABS).
When a brake pedal is pressed and the S-cam is turned, the S-cam:
1. Presses the brake shoes against the inside of the brake drum.
2. Tightens the brake drum onto the axle.
3. Presses the brake lining against the wheel.
4. Releases air from the air tanks.
1. Presses the brake shoes against the inside of the brake drum.
2. Tightens the brake drum onto the axle.
3. Presses the brake lining against the wheel.
4. Releases air from the air tanks.
Presses the brake shoes against the inside of the brake drum.
Brake linings should be:
1. Loose.
2. Free of oil.
3. Soft.
1. Loose.
2. Free of oil.
3. Soft.
Free of oil.
Having ABS on only one axle:
1. Can be dangerous.
2. Still allows you additional control when braking.
3. Slows the vehicle, but cannot stop it.
1. Can be dangerous.
2. Still allows you additional control when braking.
3. Slows the vehicle, but cannot stop it.
Still allows you additional control when braking.
If you’re driving and the ABS warning light comes on, it means:
1. The ABS is working properly.
2. The ABS has just been activated.
3. The ABS is not working properly.
4. The ABS needs to be activated.
1. The ABS is working properly.
2. The ABS has just been activated.
3. The ABS is not working properly.
4. The ABS needs to be activated.
The ABS is not working properly.
The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver
1. Presses the brake pedal.
2. Uses the emergency brake.
3. Uses the trailer hand valve.
1. Presses the brake pedal.
2. Uses the emergency brake.
3. Uses the trailer hand valve.
Presses the brake pedal.
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