Our printable Florida CDL Air Brake worksheet will help you get 100% ready for your coming exam

What is the best way to test your vehicle's low air pressure warning signal?

Turn off your vehicle's engine while leaving the electric on, then step on and off your brake pedal to test the low air pressure warning signal. When you lower the pressure below 60 psi, the low pressure warning signal should appear. You should never have to go below 30 psi.

Pump the brakes until the air pressure drops below 30 psi.

Pump the brakes while your vehicle is fully on.

Manually let the air out of your brakes and see if the signal comes on.

Step on and off the brake pedal with the engine off to reduce air pressure below 60 psi.

You can test the air compressor governor by ____________.

When a lower air pressure is achieved, the air compressor governor should kick in, and when a greater air pressure is reached, it should kick out. (For these pressures, consult your manufacturer's instructions.) To test this, raise the air pressure by running the engine at a fast idle until the air compressor governor cuts out. Then, to lessen the air pressure, keep stepping on and off the brake pedal until the air compressor governor engages.

by increasing and decreasing the air pressure.

by using the air brakes and monitoring the pressure gauges while traveling less than 40 mph.

Why must you study air brakes in the state of Florida?

In the state of Florida, you can only receive a CDL with a restriction that allows you to drive only vehicles without air brakes, if you have not studied and passed the section of the CDL exam for air brakes. So, good luck!

Otherwise, you will have to get a CDL with restrictions.

Otherwise, you can only receive a CDL permit.

Otherwise, you cannot receive a CDL at all.

With air brake-equipped vehicles, the parking brakes should be used ___________.

Because air pressure can leak when you're not in your vehicle, the parking brake should be used to keep it from rolling. This regulation has an exception: if the brakes are too hot or wet, use wheel chocks instead to prevent brake damage or freezing.

only during pre-trip and post-trip inspections.

whenever you leave the vehicle unattended.

If you do not have an automatic tank drain, when should you drain your air tanks?

If an air tank's bottom isn't evacuated, oil and water can begin to gather and cause failure. Unless your vehicle drains the air tanks automatically, you should drain them at the end of each working day to prevent moisture and oil from freezing and coagulating and causing brake failure.

In an air brake system, the application pressure gauge shows how much air pressure is being applied to the brakes. Not all vehicles with an air brake system have this gauge.

Shows the pressure of the air coming from the compressor

Shows the number of times the brakes have been used

Shows how much air pressure is being applied to the brakes

Shows the temperature of air being used in the braking system

How do you adjust a manual slack adjuster?

Turn the adjustment nut to bring the slack adjuster's end toward the air chamber until the nut stops rotating to adjust a manual slack adjuster. The brake shoes should be pressed on the inside of the brake drum at this stage. Then turn the nut a quarter of a turn the other direction to move the brake shoes away from the brake drum's inner. Note that your official state CDL manual may not cover this process.

Turn the adjusting nut to move the end of the slack adjuster toward the air chamber until the nut stops turning. Then turn the nut the other way to move the brake shoes away from the inside of the brake drum.

Turn the adjusting nut to move the end of the slack adjuster away from the air chamber as far as it will go. Then turn the nut the other way to move the brake shoes toward the inside of the brake drum.

Turn the adjusting nut either way until there is less than one inch of play in the slack adjuster.

During your final air brake check, if the air pressure does not build up fast enough, _____________.

Once the engine has attained normal operating speed, the manufacturer's requirements should stipulate how quickly the air pressure should build up. If the air pressure does not build up rapidly enough during your final air brake inspection, it may not replenish quickly enough during regular braking. Do not use the vehicle until the source of the problem has been identified and rectified.

the air pressure may drop too low during driving.

have the problem fixed after your trip is over.

How can you tell if your vehicle is equipped with an anti-lock braking system?

Anti-lock brakes are compulsory on all vehicles manufactured after 1998. A yellow ABS malfunction lamp will also be present.

Which of the following is NOT part of the air-brake system?

The service brake, parking brake, and emergency brake are the three independent systems that make up the air brakes. Read your handbook before the exam so you know what each button performs.

Free printable Florida CDL Air Brake worksheet part 11

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Free printable Florida CDL Air Brake worksheet part 11

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