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Brake System Components and Safety

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

Repeated exposure to ________ particles can lead to asbestosis and lung cancer.

a)

Aerosol

b)

Asbestos

c)

Ceramic

d)

Brake fluid

2.

Braking applications produce large amounts of heat, so the brake fluid used ________.

a)


Must be nonflammable

b)

Must have a high boiling point

c)

Must help to cool down the brakes

d)

Must cool down with water added

3.

Different lever designs can be engineered to alter the brake pedal effort required of the driver by using different levels of:

a)

Input force

b)

Output force

c)

Working pressure

d)

Mechanical advantage

4.

All of the following are primary components of the disc brake system, EXCEPT:

a)

Rotors

b)

Calipers

c)

Wheel hubs

d)

Brake pads

5.

Combination valves may contain the following:

a)

Pressure differential switch

b)

Metering valve

c)

Proportioning valve

d)

All the above

6.

Technician A states that quick take-up master cylinders were created for drum brake systems. Technician B states that quick take-up master cylinders was created for disc brake systems with low drag brake calipers. Who is correct?

a)

Tech A

b)

Tech B

c)

Both techs

d)

Neither tech

7.

________ carry brake fluid from the master cylinder to the brake units.

a)

Double-walled steel lines only

b)


Rubber hoses only

c)

Doubled-walled steel lines and rubber hoses

d)

None of the above

8.

On some pads, the depth of the groove is set so:

a)

minimum pad thickness can be determined.

b)


dirt can get trapped to stop brake squeal.

c)

the brakes will apply more evenly.

d)


lubricant can be placed between the pad and the rotor.

9.

________ slows a vehicle by converting the vehicle's kinetic energy into electrical energy.

a)

Disc brake system

b)


Regenerative braking

c)

Drum brake

d)

Scrub brake system

10.

Tech A says that calipers use steel piston rings to seal each piston. Tech B says that calipers use a square section O-ring to seal each piston. Who is correct?

a)

Tech A

b)

Tech B

c)

Both techs

d)

Neither tech

11.

Most modern master cylinder reservoirs are equipped with a low brake fluid level float switch that turns on the ________light on the instrument panel and/or sets a notification on the driver information system.

a)

Check engine

b)

TPMS

c)

Brake warning

d)

Vehicle problem warning

12.

True or False: If brake fluid boils, it turns from a vapor to a liquid, which is compressible.

a)

True

b)

False

13.

The electrically integrated caliper style parking brake uses a(n)______ mounted on the caliper to directly apply the brakes.

a)

Electric motor

b)

Hydraulically operated piston

c)


High voltage magnet

d)

High tension spring

14.

Tech A says that DOT 5 brake fluid should be used in all vehicles today because it is silicone based and will not absorb water. Tech B says that DOT 4 and DOT 3 are not recommended for use in ABS systems. Who is correct?

a)

Tech A

b)

Tech B

c)

Both techs

d)

Neither tech

15.

If brake fluid is below the minimum level in the reservoir, __________.

a)

It has been too long since the brake fluid was last added

b)

Some of the brake fluid may have evaporated

c)

The car can still be driven normally

d)

The cause of the low brake fluid level needs to be identified and corrected