Air Brakes CDL Practice Questions
68 free Air Brakes CDL-style practice questions.
The S-cam:The driver must be able to see a low air pressure warning which comes on before pressure in the service…All air brake-equipped vehicles have:The supply pressure gauge shows how much pressure:Your truck has a dual air system, and one of the systems loses its pressure. What will happen?The safety valve discharges automatically at the pressure of:The brake pedal in an air brake system:The braking power of the spring brakes:If your vehicle has an alcohol evaporator, every day during cold weather you should:With air brake vehicles, the parking brakes should be used:If you must make an emergency stop, you should brake so you:Modern air brakes combine three different systems. They are the service, the parking, and the _____ brakes.In ideal conditions, a truck or bus with air brakes going at 55 mph would require the stopping distance of…What happens when your brake drums get very hot?The most common type of foundation brake found on heavy vehicles is the:To test air service brakes, you should:How should you check that your service brakes are working properly?The air compressor stops pumping air at what psi?
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