Technician A says that air disc brakes have higher mechanical braking efficiencies than S-cam actuated,drum brakes.Technician B says that air disc brakes offer better control than equivalent drum brakes.Who is correct?

A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Air Disc Brakes

A type of brake system used in vehicles, particularly heavy-duty trucks and buses, that uses air pressure to push pads onto a disc to create friction and stop the vehicle.

Mechanical Braking Efficiencies

The effectiveness and performance efficiency of a mechanical braking system in converting kinetic energy into heat energy to stop a vehicle.

Drum Brakes

A brake system in which a rotating drum fixed to the wheel assembly turns around stationary friction-faced shoes. Braking action is achieved when the shoes are forced into the drum inside diameter. The common foundation brake system used on trucks using S-cam actuation of the shoes.