Brakes Test 3 |Complete with A+ Graded Answers

Brakes Test 3 |Complete with A+ Graded Answers Both A & B are correct Technician A says that riveted disc brake pads are often quieter that bonded disc brake pads. Technician B says that integrally molded disc brake pads are molded into holes in the steel backing of the pads. Which technician is correct? Technician A only Neither A nor B are correct Both A & B are correct Technician B only A) Aid cooling Rotors are vented to: B) Increase strength D) Reduce the rotor weight C) Reduce material cost A) Aid cooling D) Low-drag caliper A quick take-up master cylinder is required when what type of caliper design is used on a vehicle? C) Two-piston caliper B) Sliding caliper A) Fixed caliper D) Low-drag caliper E) Both A & B are correct When the pressure in a disc brake caliper is released, the piston is moved back in the cylinder by: B) The action of the piston seal A) Rotor runnout C) The leverage of the caliper arms D) Spring pressure E) Both A & B are correct Both A & B are correct Two technicians are discussing the reason that the brake fluid level in the master cylinder drops. Technician A says that it may be normal due to the wear of the disc brake pads. Technician B says that a low brake fluid level may indicate a hydraulic leak somewhere in the system. Which technician is correct? Both A & B are correct Neither A nor B are correct Technician B only Technician A only D) They are self-energizing Disc brakes have many advantages, some of which are listed below. Which of the following statements does NOT apply to disc brakes? C) They dissipate heat faster D) They are self-energizing A) They are self-cleaning B) They resist fading Technician A only Technician A says that all slides and caliper bushings should be lubricated for proper operation. Technician B says that lubricant should not be used on disc brake parts because it can trap and hold dirt. Which technician is correct? Technician A only Neither A nor B are correct Technician B only Both A & B are correct C) Piston movement through the seal Single-piston type disc brakes are adjusted by: C) Piston movement through the seal B) Self-adjusting mechanisms A) Torquing the guide pins D) Star wheel adjusters A) They require a more complex hydraulic system with special valves. Which is NOT true of rear disc brakes? A) They require a more complex hydraulic system with special valves. C) They may use a one-piece rotor with parking brake drum D) They have Relatively poor parking brake performance B) They are costly and complex B) Ceramic Which disc brake pad friction lining compound is MOST likely to cause excessive rotor wear? D) Carbon fiber (CFRC) B) Ceramic A) Non asbestos organic C) Semimetallic B) Used on high performance vehicles Four-piston disc brake calipers are generally: C) Not as strong and powerful as single-piston calipers A) Cheaper than single-piston calipers D) More commonly used than single-piston calipers B) Used on high performance vehicles Neither A nor B are correct Technician A says that all vehicles equipped with rear disc brakes use a parking brake that is integrated in the caliper. Technician B says that all vehicles equipped with rear disc brakes use a small drum brake inside the rear rotor for a parking brake. Which technician is correct? Both A & B are correct Technician A only Technician B only Neither A nor B are correct Neither A nor B are correct Two technicians are discussing the construction of a single piston caliper. Technician A says that the fluid is retained by a piston seal fitted in a groove machined in the piston. Technician B says that the piston is held in the caliper by a lock ring. Which technician is correct? Technician B only Both A & B are correct Technician A only Neither A nor B are correct Technician A only Technician A says some disc brake pads have tapered lining edges to prevent vibration. Technician B says disc brake pad wear indicators are required by law on all new vehicles. Which technician is correct? Both A & B are correct Technician A only Neither A nor B are correct Technician B only D. Only A & B Before returning the vehicle to the customer after new front disc pads have been installed: A. The vehicle should be test driven B. The brake pads should be burnished following the pad manufacturers procedures C. The brake pads should be seated by repeated high speed stops D. Only A & B E. All of the above Both A & B are correct A vehicle is hoisted during routine service and the service technician discovers that the left front wheel does not turn when force is applied. Technician A says that the hoist (lift) pads could be against the left front tire. Technician B says that there could be a brake fluid restriction between the master cylinder and the brake caliper. Which technician is correct? Technician A only Technician B only Both A & B are correct Neither A nor B are correct Technician B only Technician A says that disc brake pads with riveted linings should be replaced when worn to 1/8" above the rivets. Technician B says the pads should be removed and inspected whenever there is a brake performance complaint. Which technician is correct? Technician A only Technician B only Both A & B are correct Neither A nor B are correct Both A & B are correct 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