Question

In a disc brake, which component provides the pad-to-disc adjustment?

(a) Bleed screw

(b) Piston

(c) Caliper

(d) Piston seal

I have been asked this question by my college director while I was bunking the class.

I'm obligated to ask this question of Braking System in section Braking System of Automobile Engineering

Answer 1

Right option is (d) Piston seal

To elaborate: Piston seal provides the pad-to-disc adjustment in a disc brake. When the brake is applied, the piston seal deforms.