_____ are frequently used to keep the brake pads from vibrating and rattling.
Anti-rattle clips
The _____ is a lever arm to increase the force applied to the master cylinder piston.
brake pedal assembly
push rod
firewall
master cylinder
All of the following are parts of a disc brake assembly, except:
wheel cylinder.
caliper.
brake pads.
rotor.
True or False? Disc brakes are like the brakes on a ten-speed bicycle.
true
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?
A only.
Both A and B.
Neither A nor B.
B only.
_____ pull the brake shoes away from the brake drums.
Retracting springs
The backing plate holds all of the following drum brake components, except:
brake drum.
wheel cylinder.
springs.
shoes.
A hydraulic system uses a(n) _____ to transmit motion and pressure.
liquid
With _____ brakes, a conventional hydraulic brake system is combined with an electric regenerative braking system provided by the hybrid’s driveline.
hybrid
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?
Neither A nor B.
A only.
B only.
Both A and B.
Allows air to be removed from the hydraulic brake system.
Piston boot
Bleeder screw
return spring
Piston seal
Parking brakes provide a(n) _____ means (cables and levers) of applying the brakes.
mechanical
Describe the function and purpose of an emergency brake system.
For added safety. Oh and Drifting
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?
B only.
Both A and B.
Neither A nor B.
A only.
Brake _____ and brake _____ transfer fluid pressure from the master cylinder to the wheel brake assemblies.
lines, hoses
_____ brakes are frequently used on the two front wheels of a vehicle. _____ brakes are often used on the rear wheels.
Disc, Drum
Today’s hybrid vehicles are equipped with _____ braking systems.
regenerative
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
Technician A says newer vehicles use brake pad linings made of heat- resistant organic or semimetallic friction materials. Technician B says newer vehicles use pad linings made of asbestos. Who is right?
Both A and B.
Neither A nor B.
A only.
B only.
The _____ is included in a brake caliper assembly.
piston seal
return spring
cylinder cup
master cylinder
Keeps road dirt and water off the caliper piston and the wall of the cylinder
Bleeder screw
Return spring
Piston seal
Piston boot
Disc brake pads are _____ to which linings are riveted.
steel plates
All of the following are true about brake discs, except:
they may be solid or vented.
the brake disc is normally made of aluminum.
they may be an integral part of the wheel hub
the ventilated disc has a series of ribs
Automotive ______________provide the means of using friction to slow, stop, or hold the wheels of a vehicle.
Brakes
A power brake _____ uses power steering pump pressure to help the driver apply the brake pedal.
hydraulic booster
Power brakes use _____ to assist brake pedal application
an engine vacuum
atmospheric pressure
Both a booster and engine vacuum
a booster
How much braking power do the front wheel brakes handle?
60% to 70%
When hydraulic _____ of different sizes are used, motion and force can be increased or decreased.
pistons
Prevents pressure leakage between the piston and the cylinder.
Bleeder screw
Piston boot
return spring
Piston seal
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