BRAKE HYDRAULIC SYSTEMS CHAPTER 94 EXAMINATION QUESTIONS WITH ALL CORRECT ANSWERS
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Course
BRAKE HYDRAULIC SYSTEMS
Institution
BRAKE HYDRAULIC SYSTEMS
BRAKE HYDRAULIC SYSTEMS CHAPTER 94 EXAMINATION QUESTIONS WITH ALL CORRECT ANSWERS
The brakes on a vehicle work OK for a while, then the vehicle slows because the brakes self-applied. Tech A says that an overfilled master cylinder could be the cause. Tech B
says that a blocked vent port (compensa...
BRAKE HYDRAULIC SYSTEMS CHAPTER
94 EXAMINATION QUESTIONS WITH ALL
CORRECT ANSWERS
The brakes on a vehicle work OK for a while, then the vehicle slows because the brakes
self-applied. Tech A says that an overfilled master cylinder could be the cause. Tech B
says that a blocked vent port (compensating port) could be the cause. Which Tech is
correct? - Answer-Both
The rubber used in most brake system components will swell if exposed to - Answer-
Engine Oil or ATF
Tech A says that the brake fluid reservoir should be filled to the top of the reservoir to
be assured of proper brake pressure when the brakes are applied. Tech B says that the
brake fluid level should be filled only to the maximum level line to allow for expansion
when the brake fluid gets hot during normal operation. Which Tech is correct? - Answer-
Tech B
Two Techs are discussing the operation of a dual master cylinder. Tech A says that the
push rod is connected to the primary piston. Tech B says that the secondary piston is
pushed forward by the fluid trapped ahead of the primary piston. Which Tech is correct?
- Answer-Both
When cleaning hydraulic brake parts, use - Answer-Denatured Alcohol
Brakes that drag or fail to release can be caused by a - Answer-Plugged Vent Port
(Compensating Port)
Tech A says that the primary seal of the secondary piston is leaking if fluid is seen
leaking from the rear of the master cylinder. Tech B says that air in the brake lines will
cause a low brake pedal. Which Tech is correct? - Answer-Tech B
Tech A says that if brake fluid movement is observed when the service brake is
depressed, there is air in the hydraulic system. Tech B says that if venting
(compensating) occurs, the master cylinder is usually operating okay. Which Tech is
correct? - Answer-Tech B
Self apply of the brakes can occur if - Answer-Both A and B
Tech A says that the brake pedal height should be checked as part of a thorough visual
inspection of the brake system. Tech B says that the pedal free play and pedal reserve
should be checked. Which Tech is correct? - Answer-Both
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