basic hydraulic brake understanding

Brake fluid ________ acts on hydraulically operated slave cylinders or caliper pistons at each wheel

• pressure

• cylinder

• hydraulic

• component

A significant advantage for hydraulic brakes over air brakes is the use of highly pressurized brake fluid to apply drum or disc foundation brake

• true

• false

What does the term "ABS" stand for:

What is the name of the internal hydraulic piston that moves and pressurizes brake fluid inside the cylinder.

When performing an inspection on brake pads, which choice is not a possible cause of uneven brake wear:

• Uneven tire pressure or tire size

• Misaligned caliper

• Sticking slider pins or bushings

• One or more pistons sticking

If vehicle has low brake pedal or spongy brake, what is the first recommended service on the brake system:

• bleed

• fill

• drain

• pressurize

A vehicle has a hydroboost power brake system. Poor brake performane can be caused by:

• A defective vacuum booster

• Low Engine Vacuum

• Low power steering fluid

• A faulty brake light switch

True or False? If a vehicle has a seized caliper it will pull to the side of the seized caliper (ex: Seized left caliper--the vehicle will pull left)

• True

• False

A customer complains of a spongy brake pedal. Which of the following is the most likely cause?

• Torn Vacuum Booster Diaphragm

• Sticking Parking Brake Cables

• Air in the Hydraulic System

• Incorrect Brake Pedal Freeplay

True or False. Over heated brake fluid can boil and vaporize which will leave vapor pockets in the hydraulic system. This can result in a spongy brake pedal.

• True

• False