Release air brakes - Study guides, Class notes & Summaries

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 ...

CDL Air Brakes |Complete Questions with Graded A+ Answers After every working day Oil and water usually collect in compresed air tanks. If you do not have an automatic tank drain, when should you drain the air tanks? Why drain water from the compressed air tanks? Water can freeze in cold weather and cause brake failure. The air brake system for a straight truck or bus should not leak at a rate of more than __________ psi per minute with the engine off and the brakes released. 2 ...

Texas CDL Air Brakes Section 5 Questions and Answers 100% Pass You should know that your brakes are fading when? 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? Never Repeatedly pressing and releasing (fanning) the brake pedal may result in ? 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__...

Oil and water usually collect in compressed air tanks. If you do not have an automatic tank drain, when should you drain the air tanks? Answer - After working every day. Why drain water from the compressed air tanks? Answer - Water can freeze in cold weather and cause brake failure. The air brake system for a straight truck or bus should not leak at a rate of more than __________ psi per minute with the engine off and the brakes released. Answer - 2 To make an emergency stop with air br...

AN ENGINE BRAKE (JACOBS BRAKE) A. IS A SELF-ENERGIZING SERVO TYPE. B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF PRESSURE. D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: A. AN INVERSION VALVE. (POSSIBLE CORRECT AWNSER) B. A SAFETY VALVE. C. A MODULATOR VALVE. (NOT CORRECT AWNSER) D. A RELAY VALVE. ...

You should know that your brakes are fading when? Answer - You have to push down harder on the brake pedal to control your speed on a downhill 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 be able to see a low air pressure warning which comes on before pressure in the service air tank falls below PSI Answer - 60 ...

AN ENGINE BRAKE (JACOBS BRAKE) A. IS A SELF-ENERGIZING SERVO TYPE. B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF PRESSURE. D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: A. AN INVERSION VALVE. (POSSIBLE CORRECT AWNSER) B. A SAFETY VALVE. C. A MODULATOR VALVE. (NOT CORRECT AWNSER) D. A RELAY VALVE. ...

Brake test questions and answers Graded A+ 1) Why must air tanks be drained? a) For pre trip inspection purposes b) To check for leaks c) To release oil and water buildup d) To activate the low air pressure alarm c) To release oil and water buildup 2) What is a supply pressure gauge used for? a) To check tire pressure b) To check tank pressure c) To activate the low pressure alarm d) To check for leaks b) To check tank pressure 4) What are spring brakes? a) Hydraulic brakes...

Brake test questions and answers Graded A+ 1) Why must air tanks be drained? a) For pre trip inspection purposes b) To check for leaks c) To release oil and water buildup d) To activate the low air pressure alarm c) To release oil and water buildup 2) What is a supply pressure gauge used for? a) To check tire pressure b) To check tank pressure c) To activate the low pressure alarm d) To check for leaks b) To check tank pressure 4) What are spring brakes? a) Hydraulic brakes...

HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE WITH COMPLETE SOLUTIONS AN ENGINE BRAKE (JACOBS BRAKE) - Correct Answer ️️ -A. IS A SELF- ENERGIZING SERVO TYPE. B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF PRESSURE. D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: - Correct Answer ️️ -A. AN INVERSI...