TEXAS CDL AIR BRAKES, TX CDL #3- AIR BRAKES- SECTION 5, CDL AIR BRAKES 2 NEWEST 2024 ACTUL EXAM 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A

TEXAS CDL AIR BRAKES, TX CDL #3- AIR BRAKES- SECTION 5, CDL AIR BRAKES 2 NEWEST 2024 ACTUL EXAM 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A To check the slack adjusters on s-can brakes, you should ... - ANSWER- Wear gloves and pull hard on each adjuster. To test low pressure warning... - ANSWER- 1. Shut of engine. 2. Turn on electrical power. 3. Step on and off brake pedal to reduce to 60 psi. With dual air systems, the air pressure should build... - ANSWER- From 85 to 100 psi in 45 seconds n A fully charged air system typically has ____ psi. - ANSWER125 To test air leakage rate you should... - ANSWER- Turn off engine and release the service brake. When testing air leakage rates for combination vehicles(before applying the brake pedal), air brake systems should not lose air faster than... - ANSWER- 3 psi per minute. To check the air compressor governor cut in and cut out pressures... - ANSWER- 1. Run the engine at a fast idle. 2. Step in and off the brake to reduce tank pressure. 3. Monitor the air pressure gauge. Brake drums: - ANSWER- 1. Are bolted to the wheels. 2. Are located at each end of the vehicles axles. 3. Hold the brake shoes and linings. When he safety valves releases air it means that... - ANSWER1. The pressure has exceeded 150 psi. 2. Too much air pressure is in the air compressor. 3. Something is wrong, and that you should have it checked by a mechanic. Maximum leakage rates? - ANSWER- Single vehicle less than 2 psi per minute. Combination vehicle less than 3 psi per minute. The service brake system... - ANSWER- Applies and releases the brakes by issuing the brake pedal under normal driving. Your vehicle's single brake system needs adjustment if... - ANSWER- The compressor cuts out between 70-90 psi. The safety valve in the air compressor tank is set to open at? - ANSWER- 150 psi. Compressed air is stored... - ANSWER- In the storage tank. You should know that your brakes are fading when? - ANSWER- You have to push harder on the brake pedal to control you down hill speed If the spring brakes are on when should you push the brake pedal? - ANSWER- Never Repeatedly pressing and releasing (fanning) the brake pedal may result in ? - ANSWER- A loss of air pressure The driver must be able to see a low air pressure warning which comes on before pressure in the service air tank falls below_____PSI? - ANSWER- 60psi If your truck or bus has dual parking control valves you can use pressure from a separate tank. - ANSWER- to release the emergency/spring/parking brakes to move a short distance. The brake pedal in a air brake system. - ANSWER- controls the air pressure applied to put on the brakes To check the free play of manual slack adjusters of s-cam brakes you should? - ANSWER- park on level ground, chock the wheels release the parking brakes and pull on the slack adjusters Parking or emergency brakes on trucks or buses can be legally held on by _______ pressure. - ANSWER- Spring Emergency stab braking is when you - ANSWER- brake and hard as you can, then release the brakes when the wheels lock up and put on the brakes again when the wheels start rolling The most common type of foundation brake found on heavy vehicles is the - ANSWER- S-Cam