CA CDL Air Brakes Test Questions and Answers 100% Solved

CA CDL Air Brakes Test Questions and Answers 100% Solved The air compressor should stop pumping at about: 125 psi Repeatedly pressing and releasing (fanning) the brake pedal may result in: A loss of brake air pressure During normal driving, spring brakes are usually held back by: Air pressure What is emergency stab braking? Brake hard, release the brakes when the wheels lock, and reapply the brakes when the wheels start rolling How should you check that your service brakes are working properly? Wait for normal air pressure, release the parking brake, move the truck forward slowly, and firmly step on the brake If your truck's air has its own oil supply, when should you first check the oil level? Before driving The use of air brakes on downgrade is only a supplement to the: Braking effect of the engine The most important thing to do when a low air pressure warning comes on is: Stop and safely park as soon as possible If you must make an emergency stop, brake so you: Can steer your vehicle in a straight line The air brake lag distance at 55 mph on dry pavement adds about _____ feet to your stopping distance. 32 All air brake equipped vehicles have: An air supply pressure gauge What is emergency controlled braking? You apply the brakes as hard as you can without locking the wheels When you apply the bakes, the brake shoes/linings are pressed against the: Brake drum or disc Your vehicle has a dual air brake system. If a low air pressure warning comes on for the secondary system, you should: Stop the vehicle and continue only when the system is fixed Your truck has a properly functioning dual air brake system and minimum size air tanks. The air pressure should build from 85 to 100 psi within: 45 seconds The safety valve is usually set to reduce air pressure at: 150 psi If your vehicle has an alcohol evaporator, it is there to: Reduce the risk of ice in air brake valves in cold weather A truck with air brakes going 55 mph would require a stopping distance of: More than 300 feet The application pressure gauge shows how much air pressure you: Are applying to the brakes The braking power of the spring brakes: Depends