Why does a bus or a large truck stop and exhaust sounds? Will turbo be used?
Is it powered by gas or the main vehicle connected to the trailer via the trachea?.Trailer braking is the use of the brake pump spring acting on the brake shoe, so that the car in the parking of the lock, all the tires can not move,
It's because the brakes are air pressure. When you stop and release the brake pedal, the air is out, so the exhaust sounds and there is no turbocharging
When driving, the pump is filled with compressed air so that the brake shoe is extended so that the wheel can turn. If the trachea rupture or leakage is the automatic brake brake automatic locking. This is generally called air break brake.
