Fill in the blanks
1. A ____ or____ power assist is used on most cars to decrease the braking
effort required from the driver.
2. An ____ prevents tires from skidding during braking.
3. After the ___ brakes stop the moving car, the____ brakes help to hold it
stationary.
4. On a 2:1 ratio, the driver’s input of 75 lbs of force is boosted to ___ lbs of
force.
5. The DOT requires that any trailer with its own braking system have a
method to apply its brakes in case the trailer____ from its tow vehicle.
6. The ____ ____ is the liquid-filled cylinder in the hydraulic brake system in
which hydraulic pressure is developed when the driver depresses a foot
pedal.
7. The rigid lines or pipes of a brake hydraulic system are made of steel tubing
for system____.
8. ____ and ____ valves modulate hydraulic pressure to front disc or rear
drum brakes to provide smooth brake application and reduce the tendency
to lock the brakes.
9. _____ is the deviation in the line of travel commonly referred to as roll or
lean during cornering.
10.Trailer brakes do not recognize ____ from forward braking.
Short answer essay
1. List the main parts of a basic brake system and explain their purposes.
2. Discuss the general operation of drum brakes. Confine the answer to the
components mounted at the wheel.
3. Discuss the operation of disc brakes. . Confine the answer to the
components mounted at the wheel.
4. Explain why a parking brake system is not viable for stopping a moving
vehicle.
5. Explain the reasons for having a split brake system and the two types of
split systems
6. List some of the components shared among active braking systems ABS,
TCS, and ARC
7. Explain the purpose of flexible hoses within the brake system
8. Discuss the general interaction between a towing vehicle and its trailer
brake.
9. Explain how the outboard disc brake pad is applied against the rotor with a
typical movable caliper
10.Explain why ABS is an important system in controlling a vehicle
Multiple choice
1. Parking brake systems may share components with which of the listed
brake systems?
2. The brake pedal mechanism is?
3. One pedal mechanism with a 4:1ratio, applying 250 pounds of force and
moving the brake pedal 2 inches results in a pushrod movement of
what?
4. Disc brake calipers may (are)?
5. While discussing the master cylinder;
Tech A says the master cylinder is actually a hydraulic pump.
Tech b says the master cylinder has two pistons. Who is correct?
6. The brake caliper does what?
7. While discussing split master cylinders;
Tech a says the master cylinder has a separate line for all four wheels
Tech b says that some split brake systems have a pressure differential
warning valve in case of a leak in the system. Who is correct?
8. An active brake system normally works with components of the what?
9. The two electronic systems that may restrict engine performance are
what?
10.The major hydraulic components of a typical light vehicle brake system
include what?
