Question 1

Brake Fade

Accepted Answer

A decrease in braking performance due to the excessive heat generated by the braking system.

Question 2

Brake Pedal Ratio

Accepted Answer

The ratio between the force applied to the brake pedal and the force applied to the brakes.

Question 3

Brake Lining

Accepted Answer

The material that comes into contact with the brake drum or rotor to generate friction and stop the vehicle.

Question 4

Brake Drum

Accepted Answer

A cylindrical component on which the brake shoes make contact to slow down or stop the vehicle.

Question 5

Brake Rotor

Accepted Answer

A disc-shaped component that rotates with the wheel and provides a surface for the brake pads to clamp onto.

Question 6

Brake Caliper

Accepted Answer

A device that houses the brake pads and squeezes them against the rotor to create friction and stop the vehicle.

Question 7

Brake Shoe

Accepted Answer

A curved, metal component lined with friction material that presses against the brake drum to slow down or stop the vehicle.

Question 8

Brake Adjuster

Accepted Answer

A mechanism used to adjust the distance between the brake shoes and the drum to maintain proper brake clearance.

Question 9

Brake Fluid

Accepted Answer

A hydraulic fluid used to transmit the force from the brake pedal to the wheel brakes.

Question 10

Brake Master Cylinder

Accepted Answer

The main component of the hydraulic brake system that converts the force applied to the brake pedal into hydraulic pressure.

Question 11

Brake Booster

Accepted Answer

A device that uses engine vacuum or hydraulic pressure to assist the driver in applying the brakes.

Question 12

Anti-lock Braking System (ABS)

Accepted Answer

A safety system that prevents the wheels from locking up during braking, improving steering control.

Question 13

Brake Proportioning Valve

Accepted Answer

A valve that regulates the hydraulic pressure to the front and rear brakes to prevent rear-wheel lockup.

Question 14

Brake Warning Light

Accepted Answer

An indicator on the instrument panel that alerts the driver to a problem in the braking system.

Question 15

Brake Bleeding

Accepted Answer

The process of removing air bubbles from the brake system to ensure proper brake operation.

Question 16

Brake Pad Wear Indicator

Accepted Answer

A metal tab attached to the brake pad that makes a noise when the pad wears down to a certain level.

Question 17

Brake Drum Machining

Accepted Answer

A process of removing excess material from the brake drum's surface to restore smooth braking operation.

Question 18

Brake Rotor Resurfacing

Accepted Answer

The process of removing a thin layer of material from the brake rotor's surface to improve braking performance.

Question 19

Brake Line

Accepted Answer

A rigid or flexible tube that carries brake fluid from the master cylinder to the wheel brakes.

Question 20

Brake Hydraulic System

Accepted Answer

The network of pipes, hoses, valves, and components that transmit hydraulic pressure to the wheel brakes.

Question 21

Brake System Inspection

Accepted Answer

A thorough examination of the brake system to identify any faults, leaks, or worn-out components.

Question 22

Brake Torque

Accepted Answer

The rotational force applied to the brake rotor or drum to slow down or stop the vehicle.

Question 23

Brake Drag

Accepted Answer

A condition in which the brakes do not fully release, resulting in friction and decreased vehicle performance.

Question 24

Brake Squeal

Accepted Answer

A high-pitched noise emitted during braking caused by vibrations between the brake pads and rotor or drum.

Question 25

Brake Fluid Contamination

Accepted Answer

The presence of foreign substances, such as water or air, in the brake fluid, affecting its performance.

Question 26

Brake System Diagnostics

Accepted Answer

The process of identifying and resolving issues with the brake system through testing and analysis.

Question 27

Brake System Maintenance

Accepted Answer

Regular procedures performed to ensure the proper functioning and longevity of the brake system.

Question 28

Brake System Upgrades

Accepted Answer

Modifications or enhancements made to the brake system to improve performance, such as larger rotors or calipers.

Question 29

Brake Drum Inspection

Accepted Answer

A visual examination of the brake drum to check for wear, cracks, scoring, or other damage.

Question 30

Brake Rotor Inspection

Accepted Answer

A visual examination of the brake rotor to check for wear, warping, cracks, or other signs of damage.

Question 31

Brake Pad Inspection

Accepted Answer

A visual examination of the brake pads to assess their thickness, wear patterns, and overall condition.

Question 32

Brake Fluid Flush

Accepted Answer

The process of removing old brake fluid from the system and replacing it with fresh fluid to maintain optimal performance.

Question 33

Brake System Leak

Accepted Answer

The unintended loss of brake fluid due to a damaged brake line, hose, caliper, or other components.

Question 34

Brake System Pressure Test

Accepted Answer

A procedure to measure the hydraulic pressure within the brake system to ensure proper operation.

Question 35

Brake System Bleeder

Accepted Answer

A valve or screw used to release trapped air from the brake system during the bleeding process.

Question 36

Brake Proportioning Valve Adjustment

Accepted Answer

The adjustment of the proportioning valve to ensure the correct balance of braking force between the front and rear wheels.

Question 37

Brake Torque Calculation

Accepted Answer

The calculation of the required braking force based on factors such as vehicle weight, speed, and stopping distance.

Question 38

Brake System Overhaul

Accepted Answer

The comprehensive rebuilding or replacement of various brake system components to restore optimal performance.

Question 39

Brake System Wiring Inspection

Accepted Answer

A check of the electrical connections, wiring harnesses, and switches related to the brake system for proper functioning.

Question 40

Brake Fluid Contamination Test

Accepted Answer

A diagnostic test to determine if brake fluid has been contaminated with moisture, debris, or other substances.

Question 41

Brake System Warning Light Diagnosis

Accepted Answer

The process of diagnosing the cause of a illuminated brake warning light to identify and resolve the issue.

Question 42

Brake System Bleeding Sequence

Accepted Answer

The specific order in which the brake calipers or wheel cylinders are bled during the bleeding process.

Question 43

Brake System Torque Specifications

Accepted Answer

The recommended tightening torque values for brake system components, such as caliper bolts or hose fittings.

Question 44

Brake System Service Intervals

Accepted Answer

The recommended mileage or time intervals for performing routine maintenance and inspections on the brake system.

Question 45

Brake System Performance Testing

Accepted Answer

The evaluation of the brake system's ability to generate adequate braking force and stop the vehicle safely.

Question 46

Brake System Component Identification

Accepted Answer

The identification of various components within the brake system, including valves, sensors, and connectors.

Question 47

Brake System Assembly

Accepted Answer

The process of installing, aligning, and securing brake system components during the reassembly or replacement of parts.

Question 48

Brake System Documentation

Accepted Answer

The collection and organization of records, service manuals, diagrams, and other resources related to the brake system for reference and future maintenance.

ASE Medium-Heavy Truck Certification Flashcards: T4 - Brakes