Question

technician a says that a lack of lubrication on the back of the disc brake pads can cause brake noise. technician b says that pads that are not correctly crimped to the caliper housing can cause brake noise. which technician is correct?
technician a only
technician b only
both technicians
neither technician
question 4
1 pts
two technicians are discussing ways of removing a caliper piston. technician a says to use compressed air. technician b says to use large pliers. which technician is correct?
technician a only
technician b only
both technicians
neither technician
question 5
1 pts
technician a says that a loaded caliper includes an overhauled caliper assembly but no brake pads or hardware. technician b says that a loaded caliper includes the pads and all needed hardware. which technician is correct?
technician a only
technician b only
both technicians
neither technician

Explanation:

Question (above Question 4, about brake noise):

• Technician A: Lack of lubrication on disc brake pad backs can cause vibration/noise (metal-on-metal contact or pad movement).
• Technician B: Incorrectly crimped pads to caliper housing can lead to loose fit, causing movement and noise. Both factors are valid brake noise causes.

• Technician A: Compressed air is a standard method to remove caliper pistons (by applying pressure to push them out, with proper precautions like blocking the piston).
• Technician B: Using large pliers is not a safe or standard method (can damage the piston or caliper, and pliers can’t apply even pressure). So only Technician A is correct.

• Technician A: A loaded caliper includes the overhauled caliper assembly and brake pads/hardware (A’s statement says “no brake pads or hardware” – incorrect).
• Technician B: A loaded caliper does include the pads and all needed hardware (correct definition). So only Technician B is correct.

Answer:

Both technicians

Question 4 (removing caliper piston):