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Worksheetsbrakes Level 1 @ 2
Total questions: 83
Worksheet time: 44mins
This type of brakes uses a caliper to squeeze brake pads into a rotor
Disc brakes
Drum brakes
This type of brakes uses a wheel cylinder to push brake shoes outward
Drum brakes
Disc brakes
Which has a larger piston, giving a larger surface area, meaning more force applied?
Drum brake wheel cylinder
Disc brake caliper
What system provides additional assistance to the driver when applying the brake pedal?
Power brake/brake boost
Anti-lock brakes
Cruise control
Piston return spring
This light turns on when a fault is present in the anti lock brake system, including wheel speed sensors, wiring, etc
Red brake warning light
Check engine light
Yellow "ABS" light
Airbag/SRS light
This light turns on when brake fluid is low or when the parking brake is applied
Red brake warning light
Check engine light
Yellow "ABS" light
Airbag/SRS light
Which brakes wear faster and why?
Rear brakes, because the rear carries more braking load
Front brakes, because the front brakes do most of the braking work
They wear evenly, because of the proportioning valve
When brakes overheat, a lack of friction is caused by the change in the materials under high temperature. This phenomenon is called:
Smokey brakes
Brake slip
Water brakes
Brake fade
A brake pedal feels spongy. This is most likely cause by:
ABS fault causing a DTC to set
Frozen caliper piston
Defective metering valve
Air in hydraulic system
a brake booster pushrod that is too short will cause:
Excessive brake drag
Brake system to be inoperative
Excessive brake pedal travel
Brake light illuminated
What are the two different types of brake line flares?
Bubble & Metric
Metric & Standard
Double & ISO
ball flare and bubble flare
The type of brake fluid most often recommended by vehicle manufacturers is _______.
DOT 5
DOT 5.1
DOT 4
DOT 3
Which of the following is NOT a characteristic of conventional brake fluid?
Absorbs moisture from the air
Removes paint if spilled on vehicle surfaces
Lasts the life of the vehicle unless there is a leak
Is clear or amber in color
Polyglycol brake fluid is labeled ________.
DOT 3 & DOT 4
DOT 5
DOT 5.1
DOT 5 & 6
Modern brake tubing is ________.
double-walled
single-walled
made of copper
able to withstand an internal pressure of 2000 psi
What type of tubing flare is shown in this illustration?
BVD flare
SAE flare
ISO flare
ESI flare
What type of tubing flare is shown in this illustration?
BVD flare
SAE flare
ISO flare
ESI flare
What percentage of moisture does brake fluid absorb per year by volume?
1%
2%
3%
4%
A bulge in brake hose is a sign of what?
External leak
Internal Leak
Normal operation
Sign of wrong brake fluid
A technician is replacing a brake line which of the following is NOT correct?
Brake lines should be double walled steel
Compression fittings are an acceptable means of repair
Brake lines are flared using double flare or bubble flare methods
Brake line fitting are available in standard and metric thread pitches.
True or False. Over heated brake fluid can boil and vaporize which will leave vapor pockets in the hydraulic system. This can result in a spongy brake pedal.
True
False
When discussing brake fluid "hygroscopic" means?
Repels moisture
Absorbs moisture
Absorbs heat
Brake lines should be inspected for what faults?
Leaks
Kinks
Rust
All the above
Brake hoses should be inspected for:
Cracks/splits
Chaffing
Bulging when the brake pedal is pumped up
All of the above
Where movement is required brake lines must be:
Securely fixed to vehicle body
made from copper pipe as more softer than steel
made from steel pipe as resistant to movement
Flexible hoses
A.B.S. Stands for
Anti-lock Braking System
All wheel Brake System
Absolute Brake System
Automatic Braking System
If while driving the ABS warning lamp illuminates Amber what must the driver do?
Stop car immediately and then check oil level
Stop as soon as safe then switch off warning lamp
Continue driving, but be aware that ABS may not work
Only needs action when light is RED
The three phases of ABS are:
Reduction, Maintenance & Increase.
Stop, Go & Park
Reduction, Maintenance & Decrease
Decrease, Increase & Reduction
What is the name of the machine that makes brake rotors look new?
the brake lane
the brake lathe
the brake lamp
A "flare nut" wrench is also known as what?
Combination wrench
Pipe wrench
Line wrench
The ABS light remains on after its brief self-test during startup. What does it mean?
There is a fault stored, but ABS will intervene during certain traction events
The conventional braking system will have reduced functionality
There is a fault stored, and ABS will not intervene during traction events
ABS & ESC codes are retrieved by:
DVOM's (Digital Volt Ohm Meter)
Oscilloscope
Scan Tool
Iphone
What is main reason for anti-lock brake systems?
better brake wear
longer tire life
quicker/better stopping power
prevent wheel lockup and loss of steering control
When a tire locks and skids, it's stopping distance ..........
increases
decreases
stays the same
Brake drums can be solid, vented, cross-drilled, cross-drilled slotted, dimple slotted and carbon ceramic.
True
False
If the customer wants to buy all four brake discs which parts do we offer because they go well with his/her purchase?
brake shoes
wheel cylinders
brake pads
brake calipers
a rotor must be measured for _______________ prior to machining
parallelism
thickness
run out
all of these
A brake rotor with a parking brake in the center is called
four wheel disc
drum in hat
integral
none of thee
Braks systems are split
longitudinally
diagonally
none of thee
A vibration when braking felt in the steering wheel can be caused be warped front rotors.
True
False
What is the principle/Law that helps us apply greater hydraulic force to the calipers?
Lemon's
Ohm's
Pascal's
Newton's
Stuck guide pins will most often cause?
Uneven brake pad wear
Soft brake pedal
Squeaking
Hard brake pedal
Which of the following conditions can cause brake pedal fade (when the pedal is firm at first, but gradually sinks to the floor with the same pressure applied)
Seized wheel cylinder piston
Brake drum machined beyond limit
Leakage past the master cylinder cups
Air in the hydraulic system
A vehicle with disc/drum brakes has a hard to push brake pedal. When starting the engine with the pedal applied, the pedal does not drop at all.
Technician A says excessive brake pedal free play could be the cause
Technician B says air trapped in the hydraulic system is the likely cause
Who do you agree with?
Technician A
Technician B
Neither
Both
A 1999 Ford F150 with drum brakes had a leaking axle seal. You are making an estimate to repair it. You see the seal is leaking, and the drum brake shoes are covered in oil. What do you recommend?
Replace the axle seal and replace the oil soaked brake shoes
Replace the axle seal, and clean the oil off the brake shoes
Replace the axle assembly
Flush the brake fluid and bleed the brake system
On a car with disc/drum brakes, the front brakes lock up with light pedal application. You should suspect an issue with the:
Residual check valve
Proportioning valve
Pressure differential switch
Metering valve
All of these EXCEPT one can cause a low brake pedal:
Brake adjustment
Loose wheel bearing
Low brake fluid
Seized caliper piston
A spongy brake pedal on a vehicle with 4 wheel disc brakes with longer than normal travel indicates which of the following?
Air in the hydraulic system
Caliper piston seized
Parking brake out of adjustment
Faulty power booster
A car with 4 wheel disc brakes has a brake squeal
Technician A says a defective proportioning valve is a likely cause
Technician B says that squeals are often caused by movement of the brake pad during braking
Who do you agree with?
Technician A
Technician B
Both
Neither
A vehicle has excessive pedal travel before the brakes apply
Technician A says the master cylinder pushrod is adjusted incorrectly
Technician B says the cause is a faulty residual pressure check valve admitting air
Who do you agree with?
Technician A
Technician B
Both
Neither
With the brakes applied on a vehicle with power brakes, the pedal drops down slightly when the engine is started.
Technician A says the cause could be a leaking power brake booster diaphragm
Technician B says the cause could be a stuck closed residual check valve in the hose from the intake manifold.
Who do you agree with?
Technician A
Technician B
Neither
Both
When performing a vacuum booster function test, start by pumping the brake pedal several times_________________________
With the engine off
With the engine running
With the vacuum hoses removed
While driving the vehicle slowly
On a bearing that has been shock loaded, the race of the bearing is dented. This type of damage is called:
Spalling
Arcing
Brinelling
Fluting
Technician A says a defective wheel bearing will cause a growling or rumbling noise
Technician B says a defective wheel bearing should be loose/cause excessive play in the steering
Who is right?
Technician A
Technician B
Both
Neither
The yellow ABS light is on with the engine running.
Technician A says this could be due to the parking brake not being fully released
Technician B says when this happens, the brakes should operate like non-ABS brakes
Who is correct?
Technician A
Technician B
Neither
Both
