A consequence of what phenomenon is that the tires begin to skid, and the driver loses the ability to steer the vehicle?

While discussing advantages of air brake systems, Technician A says the supply of air is limitless, which allows for minor leaks without the loss of braking. Technician B says that connecting the tractor and trailer braking systems is easier using air lines rather than hydraulic hoses. Who is correct?

What are used to prevent a total loss of braking if a failure occurs?

Wedge brakes use __________ to multiply braking force.

Technician A says all brake block friction material is identified by an edge code. Technician B says the friction class is indicated by four letters. Who is correct?

__________ produce more brake torque, but often result in uneven brake shoe wear.

What occurs during chemical fade?

During brake fade, the brakes' stopping power is __________.

Technician A says it is not necessary that friction material on all axles be replaced at the same time. Technician B says brake torque refers to the force applied to the foundation brakes during braking and is calculated by the vehicle manufacturer using several variables. Who is correct?

Technician A says that rear axles require larger capacity brakes because they carry more weight. Technician B says that front axles use smaller drums and narrower brake shoes. Who is correct?

Brake drums are dynamically __________ at the factory.

Correct hub and drum combinations are required to prevent broken bolts, damage to drums, and __________.

What types of brake chambers are built to help minimize the hazard of an inadequate brake stroke for a misadjusted slack adjuster?

When discussing dual brake chambers, Technician A says that the service chamber requires air pressure to release the brakes. Technician B says that the emergency spring brake needs air pressure to apply the brakes. Who is correct?

Which type of slack adjuster is offered by most manufacturers because it resists over-adjustment?

What type of slack adjuster makes adjustments to slack based on the measured rotation between a brake application and release?

Air disc brakes use __________, which dissipate(s) heat faster than drum brakes.

Technician A says brake fade is more of a problem in air disc systems as compared to drum brakes. Technician B says early ADB systems had many problems related to maintenance and operation due to corrosion of slider pins, inconsistent operation of adjusting mechanisms, undersized rotors, and difficult access to parts. Who is correct?

What is the primary function of friction in braking systems?