Chapter 1

Question 1

______________ braking systems use electrical generators to help slow the vehicle during gradual stops and help recharge the electric batteries.

Answer 1

REGENERATIVE

Question 2

The _______________ _______________ is mounted on a lever with a pivot near the top of the lever.

Answer 2

BRAKE PEDAL

Question 3

Modern automotive _______________ _______________were developed from aircraft brakes of World War II.

Answer 3

BRAKE PADS

Question 4

Disc _______________ _______________ are mounted in a caliper that sits above the spinning rotor.

Answer 4

BRAKE PADS

Question 5

The _______________ _______________ is the start of the brake hydraulic system.

Answer 5

MASTER CYLINDER

Question 6

All master cylinders for vehicles built since 1967 have _______________ _______________ and pumping chambers

Answer 6

2 PISTONS

Question 7

There are two types of split systems: _______________ and front/rear.

Answer 7

DIAGONAL

Question 8

The electronic function of the proportioning valve has been called “_______________ _______________ _______________” and “_______________ _______________ _______________” by various manufacturers

Answer 8

“DYNAMIC REAR PROPORTIONING”
“ELECTRONIC BRAKE DISTRIBUTION”

Question 9

Most systems with drum brakes have a single, _______________ cylinder at each wheel.

Answer 9

TWO-PISTON

Question 10

The ABS does the same thing as an _______________ _______________ would, only it does it faster and more precisely.

Answer 10

EXPERIENCED DRIVER

Question 11

Technician A says all the friction components of a disc brake are exposed to the airstream. Technician B says this helps to cool the brake parts and maintain braking effectiveness during repeated hard stops from high speeds. Who is correct?
A. A only C. Both
B. B only D. Neither

Answer 11

BOTH

Question 12

Technician A says that with a fixed caliper, hydraulic pressure is applied to pistons on both sides to force the pads against the rotor. Technician B says that with a movable caliper, pressure is applied to a piston on the outboard side only. Who is correct?
A. A only B. B only
C. Both
D. Neither

Answer 12

A ONLY

Question 13

Technician A says drum brakes do not develop the mechanical servo action that you will learn about as you study drum brakes. Technician B says drum brakes require higher hydraulic pressure and greater force to achieve the same stopping power as a comparable disc brake. Who is correct?

Answer 13

D NEITHER

Question 14

While discussing the brake stroke sensor, Technician A says the brake stroke sensor informs the brake controller how fast the brake pedal is being pushed down. Technician B says the stroke sensor also informs the controller how much pressure the driver is applying to the brakes.

Answer 14

C BOTH

Question 15

Technician A says the stroke simulator is used to make hybrid brake application feel normal to the driver. Technician B says the stroke simulator is an electrical switch for the brake lamps. Who is correct?

Answer 15

A ONLY

Question 16

Technician A says that all new vehicles have metering and proportioning valves. Technician B says that the function of these valves has been taken over by the ABS system on most vehicles. Who is correct?

Answer 16

B ONLY

Question 17

While discussing wheel cylinders and caliper pistons, Technician A says wheel cylinders of drum brakes operate in response to the master cylinder. Technician B says the caliper pistons of disc brakes operate in response to the wheel cyl- inders. Who is correct?

Answer 17

A ONLY

Question 18

Technician A says almost all brake systems have a power booster that increases the force of the driver’s foot on the pedal. Technician B says most cars and light trucks use a vacuum booster that uses the combined effects of engine vacuum and atmospheric pressure to increase pedal force.

Answer 18

C. BOTH

Question 19

Technician A says some vehicles without a ready vacuum source may have a hydraulic power booster. Technician B says the hydraulic booster can be supplied with fluid by the power steering system or may be a part of the brake system and driven by an electric motor. Who is correct?

Answer 19

C BOTH

Question 20

Technician A says automatic ride control (ARC) is an electronic braking system designed to provide a more comfortable ride. Technician B says ARC also allows betters control of the vehicle during cornering. Who is correct?

Answer 20

C BOTH

Question 21

Name the four basic functions of the braking system

Answer 21

1. Slow car
2. stop car
3. keep car in place
4. allows directional control during max braking

Question 22

Breifly describe the modern master cylinder

Answer 22

Reservoir, piston, fluid springs. Takes movement from the brake pedal with the lever and push fluid creating increasing hyraulic pressure using pascals law

Question 23

Briefly describe why the split system is needed on modern vehicles

Answer 23

Creates stability in case of failure. If one line fails you still have stopping cabability during braking

Question 24

Desribe the purpose of the brake stroke sensor on a hybrid vehicle

Answer 24

Tell the brake actuator how fast and how far the driver applie the brake pedal

Question 25

Describe regenerative breaking

Answer 25

Takes kinetic energy from the wheels to turn an electric generator to recharge batteries

Question 26

Describe the lines and hoses used on vehicle braking systems

Answer 26

Double sealed, flexible to accomodate motion, coated to protect from corrosion double walled and seamless

Question 27

Why is it wrong to call the parking brake an emergency brake

Answer 27

Should only be used to keep the car stopped as opposed to a service brake

Question 28

Describe waht is meant by negative wheel slip.

Answer 28

When bakes are applied with enough pressure and stop the wheels from rotating. Called lock up

Question 29

Explain how the traction control system works to control wheel spin

Answer 29

Controls positive wheel spin - can reduce engine power via throttle control, reduce engine timing through ecm and apply brakes to the spinning wheel

Question 30

5. Describe the two types of split hydraulic systems.

Answer 30

Diagonal, Front to back