Release air brakes - Study guides, Class notes & Summaries

HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE RATED A+ 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 ...

Texas CDL - Air Brake Test Questions and Answers Graded A+ 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? After working every day. 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...

NC CDL Air Brakes Questions and Answers Already Passed 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? After every working day 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 To make ...

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 ...

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...

he parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away, like: a. Fluid pressure b. Spring pressure c. Air pressure d. Any of the above b. Spring pressure A straight truck or bus air brake system should not leak at a rate of more than __ psi per minute with the engine off and the brake released. a. 1 b. 2 c. 3 d. 4 c. 3 Your vehicle has dual air brake system. If low air pressure warning comes on for the secondar...

CDL Air Brakes Test Questions and Answers 100% Pass To test air service brakes you should: Brake firmly while slowly moving forward The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks falls below ____ psi 60 If your vehicle has an alcohol evaporator, every day during cold weather you should: Check and fill the alcohol level All air brakes equipped vehicles have: A supply pressure gauge The most common type of found...

After every working day ANSWER: 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? 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 bra...

Texas CDL Air Brakes Questions and Answers Already Passed Air brake systems combine what three different systems? Service brakes, parking brakes and emergency brakes. When should you drain the air tanks? After every working day. Why drain water from the compressed air tanks? Water can freeze in cold weather and cause brake failure. Air brake equipped vehicles must have: A supply pressure gauge and warning signal when psi drops below 60. What can legally hold a parking or eme...

CDL Air Brakes | Study Guide ( Updated 2024 ) Complete Questions & Answers (Solved) 100% Correct 1. Oil and water usually collect in compresed air tanks.Ifyou do not have an automatic tank drain, when should you drain the air tanks? Answer After every working day 2. Why drain water from the compressed air tanks? Answer: Water can freeze in coldweather and cause brake failure. 3. The air brake system for a straight truck or bus should not leak at a rate of more than psi per minute with...