What are brake shoes - Study guides, Class notes & Summaries

Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive wheel? - Answer- Sealed non-serviceable to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: - Answer- drop slightly and remain firm You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary shoe lining is: - Answer- Smaller and...

CDL Air Brakes Part 2 Questions and Answers Already Passed The air pressue should not drop more than 3 psi single , 4psi combination, 6psi combination of 3 + In one minute during an APPLIED leakage test What is a supply pressue gauge used for Guages tell you how much pressure is in the air tanks (true or false) The service brake system applies and releases the parking brakes when you use the parking brake control False (true or false) When air tank pressure rises to around 125 ...

BNSF Air Brake & Train Handling Test with Complete Solutions Draft forces are present when: - Answer-a train is in a slack-stretched condition To qualify a train air brake system using the Air flow Method (AFM, the train must be equipped as follows: - Answer-The controlling locomotive has a maintaining-type automatic brake valve; the train has a gauge or device at the rear of the train; the locomotive has an air flow indicator that shows a direct reading of air flow in increments no greate...

STATE BRAKE CERTIFICATION QUESTIONS WITH VERIFIED ANSWERS A cracked or torn vacuum diaphragm in a brake power booster would most likely cause: a hard pedal feel requiring very high pedal effort to stop to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: drop slightly and remain firm A mechanic finds gear lube inside both rear drums on a rear wheel drive ve...

SOS Mechanic Certification- Brakes Exam Complete Questions with 100% Correct Answers Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive wheel? Sealed non-serviceable to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: drop slightly and remain firm You are installing a set of brake shoe linings that are not the same ...

SOS Mechanic Certification- Brakes Exam with Verified Answers. Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive wheel? Sealed non-serviceable to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: drop slightly and remain firm You are installing a set of brake shoe linings that are not the same length. Traditionally, the pr...

When a truck has no air pressure in its tanks, which warning devices are activated when the ignition key is turned on? A buzzer, a dash gauge and a red light What legislation mandates every required standard of a highway truck air brake system? FMVSS 121 If a truck is FMVSS 121 compliant, which of the following air reservoirs must be incorporated into the air brake circuit? Supply, primary and secondary tanks In a truck air brake system which sub circuit is primarily resp...

CDL Class B - Air Brakes Questions and Answers Graded A+ Air brakes use ____ to make the brakes work. Compressed air The ____ brake system applies and releases the brakes when you use the brake pedal during normal driving. Service The _____ brake system applies and releases the parking brakes when you use the parking brake control. Parking The ______ brake system uses parts of the service and parking brake systems to stop the vehicle in a brake system failure. Emergency What...

SOS Mechanic Certification- Brakes Exam with Verified Answers. Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive wheel? Sealed non-serviceable to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: drop slightly and remain firm You are installing a set of brake shoe linings that are not the same length. Traditionally, the pr...

1. On a car with disc/drum brakes, the front brakes grab quickly when light pedal pressure is applied. This problem could be caused by a bad: A. proportioning valve B. pressure safety switch C. metering valve D. residual check valve - C 2. The driver of a vehicle with power disc/drum brakes says that the brake pedal moves slowly to the floor while maintaining pedal pressure at a stoplight. What could cause this problem? A. leaking primary piston cup in master cylinder B. leaking powe...