Automotive ______________provide the means of using friction to slow, stop, or hold the wheels of a vehicle.
Brakes
15
With _____ brakes, a conventional hydraulic brake system is combined with an electric regenerative braking system provided by the hybrid’s driveline.
hybrid
15
Technician A says lever action pushes a rod into the brake booster and master cylinder when the driver pushes on the brake pedal. Technician B says this produces hydraulic pressure in the master cylinder. Who is right?
Neither A nor B.
Both A and B.
B only.
A only.
15
_____ brakes are frequently used on the two front wheels of a vehicle. _____ brakes are often used on the rear wheels.
Disc, Drum
15
All of the following are parts of a disc brake assembly, except:
wheel cylinder.
rotor.
caliper.
brake pads.
15
Technician A says a wheel cylinder assembly houses a hydraulic piston that is forced outward by fluid pressure. Technician B says a brake drum rubs against brake shoes to stop or slow wheel rotation. Who is right?
Both A and B.
Neither A nor B.
A only.
B only.
15
How much braking power do the front wheel brakes handle?
60% to 70%
15
Technician A says front-wheel-drive cars can have a very low braking ratio at the front wheels. Technician B says front-wheel-drive cars can have a very high braking ratio at the front wheels. Who is right?
A only.
Neither A nor B.
B only.
Both A and B.
15
A hydraulic system uses a(n) _____ to transmit motion and pressure.
liquid
15
List the three principles that apply to the operation of a hydraulic system.
liquids in a confined area will not compress, but air in a confined area will compress; when pressure is applied to a closed system, pressure is exerted equally
15
When hydraulic _____ of different sizes are used, motion and force can be increased or decreased.
pistons
15
The _____ is a lever arm to increase the force applied to the master cylinder piston.
push rod
master cylinder
brake pedal assembly
firewall
15
Power brakes use _____ to assist brake pedal application
Both a booster and engine vacuum
an engine vacuum
a booster
atmospheric pressure
15
Brake _____ and brake _____ transfer fluid pressure from the master cylinder to the wheel brake assemblies.
lines, hoses
15
True or False? Disc brakes are like the brakes on a ten-speed bicycle.
true
15
The _____ is included in a brake caliper assembly.
