Two technicians are discussing the operation of a dual master ...

[olgavictoria]

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

[ririgirl15]

Answer to Question 1

C

Answer to Question 2

B

[olgavictoria]

Thanks for the timely response, appreciate it

[Dinolord]

TYSM