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WorksheetsSenior weekly quiz 12/4/2020
Total questions: 20
Worksheet time: 18mins
When using a brake drum lathe, the technician sould always use
a vibration damper
safety glasses
cutting oil
both A and B
The type of disc brake calipers found on most american automobiles are
single-piston floating
two-piston fixed
two-piston floating
single-piston fixed
An ABS system will
decrease braking force on selected wheels
increase the braking distance on high-traction surfaces
always reduce braking distances on bitumen-surface roads
decrease braking distances on gravel and snow
For an eight cylinder engine, a good vacuum reading should read
10 to14 inches of mercury
steady needle,17 to 20inches of water
steady needle,17 to 20 inches of mercury
fluctuating gauge between 15 to 17 inches of water
If the spark plug porcelain is white or blistered the spark plug heat range is
just right
too cold
too hot
in need of adjustment
A high hard brake pedal and excessive stopping distances could indicate.
low brake fluid
a defective power brake booster
air in the hydraulic brake system
brake pads may be worn out
Vacuum-assist power brake units have __________reserve stops
0
2 to 3
5 to 7
8 to 10
When using manufacturer's diagnostic routines for traction control,
the technician can retrieve DTCs by using scan tools
DTCs can be ignored if they do not match customer's symptom
DTCs symptom charts are only a suggested diagnostic route
visual inspection may be eliminated if DTCs are present
When following a manufacturer's diagnostic routine, which of the following is correct?
DTC is the last step in diagnosis process
Diagnosis by symptom charts is helpful if no traction control DTC is present.
Basic brakes and engine concerns do not affect traction control performance
Traction control only works in cold weather states
When using manufacturer's diagnostic material, it is TRUE that
a general description of the system is USUALLY found in the beginning of the diagnostic section
failure to follow flow charts will usually result in repairing vehicles
known good components means that
defective parts may be substituted for diagnostic purposes
no DTCs means the system is okay
What component is the heart of the anti-lock brake system (ABS)?
electronic controller
reservoir
booster
solenoid body
An ABS system will
decrease braking force on selected wheels
increase the braking distance on high-traction surfaces
always reduce braking distance on bitumen-surface roads
decrease braking distances on gravel and snow
When diagnosing traction control, Technician A states that the anti-lock brake system must be working correctly before traction assist can be diagnosed. Technician B states that the anti-lock system may use engine management system components. which technician is correct?
Technician A
Technician B
both technician
neither technician
When replacing the left front caliper on a diagonally spilt brake system, the correct bleeding sequence is
left front - right rear
right front - left rear
right rear - left front
left rear - right front
The number 10.090 cast into the brake drum refers to the
minimum diameter of the drum
discard diameter
original size of the drum
manufacturer's part number of the drum
A brake pedal that slowly goes to the floor when the brakes are applied, with the engine off, with no fluid loss could indicate the
master cylinder is defective
brake pads or brake shoes may be worn out
power brake booster is defective
brake fluid is low
If all four wheels tend to slowly lock up while driving, the most likely trouble would be in the
brake drums
brake shoes
master cylinder
wheel cylinder
When turning a scored brake drum, the maximum oversize limit for MOST automobiles would be
0.030 inch
0.060 inch
0.090 inch
0.110 inch
The number 10.090 cast into the brake drum refers to the
minimum diameter of the drum
discard diameter
original size of the drum
manufacturer's part number of the drum
