What are spring brakes - Study guides, Class notes & Summaries

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...

SOS Brake & Braking System Questions and Answers Graded A+ In a single anchor bendix drum type rear brake the secondary lining is longer than the primary Compared to the secondary shoe lining areas of drum brakes, the primary shoe lining area is: smaller and goes toward the front of the car During a brake overhaul, you notice that the brake fluid seems to be very dirty and dark in color. What should you do? flush the system before the new parts are installed In order to bleed t...

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. ...

CDL Study Guide ( Updated 2024 ) Complete Questions & Answers (Solved) 100% Correct 1. What is the most important reason for doing a vehicle inspection? Answer: Safety.Safety for yourself and other road user. 2. What thingsshould you check during a trip? Answer: Watch gauges, mirrors, use yoursenses to check for problems. Look, listen, and smell. Check critical items when you stop; tires, wheels, and rims ; brakes, lights and reflectors; brake and electricalconnections to trailer. trai...

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...

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 |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 ...

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...

CDL Exam Questions & Answers 2024/2025 What is the most important reason for doing a vehicle inspection? - ANSWERSsafety for yourself and for other road users. What things should you check during a trip? - ANSWERSWatch gauges for signs of trouble. Tires, wheels and rims. Brakes. Lights and reflectors. Brake and electrical connections to trailer. Trailer coupling devices. Cargo securement devices. Name some key steering system parts. - ANSWERSsteering wheel steering wheel shaft ste...

CDL Combination Vehicle Practice Test Questions With Answers Latest Updated 2024/2025 | 100% Correct. Loss of air pressure in the emergency line causes: A. the relay valves to close B. an increase in air pressure to the service line C. the trailer's emergency brakes to come on 3. A tractor with a __ trailer requires the shortest amount of stopping distance. A. empty B. lightly loaded C. fully loaded 4. Which of these statements is true? A. the brake and suspension of combination vehicl...