Author Question: Two technicians are discussing the operation of a dual master cylinder. Technician A says that the ... (Read 85 times)

olgavictoria · **on:** Jun 23, 2018

Two technicians are discussing the operation of a dual master cylinder. Technician A says that the push rod is connected to the primary piston. Technician B says that the secondary piston is pushed forward by the fluid trapped ahead of the primary piston. Which technician is correct?

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

Question 2

What part causes the disc brake caliper piston to retract when the brakes are released?

A) The rotating rotor (disc) that pushes the piston back
B) The square cut O-ring
C) Return (retracting) spring
D) The caliper bushings