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Practice Listening: Multiple Choice, Single Answer
ID: #41040
Short
Disk Brakes
Transcript:
Of the two common braking systems used in automobiles, disc brakes and drum brakes, the disc system is the more reliable. Disc brakes work on the principle of applying friction to a rotating disc. The brake has three major elements, a cast iron disc that is attached to the wheel, brake pads on either side, which apply friction and a hydraulic piston. Pushes each pad against the disk. When the brake pedal is stepped on, hydraulic fluid is forced from the master cylinder to the slave cylinders at each wheel. Hydraulic system is used because it delivers pressure equally to all. The pressurised fluid pushes the slave Pistons, which in turn push the brake pads against the rotating disk. The greater the pressure, the harder the pads rub, the faster the braking.
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