DMV CDL TEST 2024 (A+ GUARANTEED)

You should know that brakes are fading when: correct answers You have to push harder on the brake pedal to control your speed on a down grade. The brake system that applies the use of the brakes when the driver uses the brake is the: correct answers Service brake system. The air compressor governor controls: correct answers When air is pumped into the air tanks. If your truck's air compressor has its own oil supply. When should you first check its oil level? correct answers Before driving. For air brake systems in good conditions the air compressor should start pumping at about: correct answers 100 psi If your vehicle has an alcohol evaporator, it is there to: correct answers Reduce the risk of ice in air brake valves in cold weather. Some air brake systems have an alcohol evaporator. What will happen if you don't keep the unit filled with alcohol? correct answers Ice will form in the storage tanks and cause the brakes to fail. The safety valve is set automatically to reduce pressure at: correct answers 150 psi The brake pedal in an air brake system: correct answers Controls the air pressure applied to put on the brakes. Repeatedly presssing and releasing (fanning) the brake pedal may result in: correct answers The loss of air pressure. The most common type of foundation brake found on heavy vehicle is the: correct answers S-cam drum. S-cam: correct answers Forces the brakes shoes against the inside of the brake drum. When the brakes are applied the brake shoes or linings are pressed against the: correct answers Brake drums or disc. All air brake equipped vehicles have: correct answers A supply pressure gauge. The application pressure gauge shows how much air pressure you: correct answers Are applying to the brakes. Stop light switch: correct answers Turns on the brake lights to warn drivers behind you.