Chassis Final exam Study guide EXAM LATEST 110
QUESTIONS AND 100% Verified ANSWERS
The rear brakes should be inspected, and adjusted if necessary, if the parking brake requires more than
- answer>>10 clicks
A rear drum brake is being inspected. The primary shoe is not contacting the anchor pin at the top.
Tech A says that this is normal. Tech B says that the parking brake cable may be adjusted too tight or is
stuck. - answer>>Tech B
Tech A says that a hose clamp can be used to compress the retainer fingers of a parking brake cable in
order to remove it from the backing plate. Tech b says a box-end wrench can be used instead of a hose
clamp. - answer>>Both Techs
Tech A says that an electric parking brake uses an electric motor to pull on the parking brake cable.
Tech B says that some electric parking brake systems use a computer-controlled motor attached to the
caliper. - answer>>Both Techs
Tech A says that aluminum brake drums use cast iron friction surfaces. Tech B says that up to .030 inch
should be left after machining a drum to allow for wear. - answer>>Both Techs
Tech A says that hard spots in a brake drum should be removed using a carbine tip machining tool.
Tech B says that the drum should be replaced if hard spots are found. - answer>>Tech B
Tech A says that brake drums on the same axle should be close to the same inside diameter for best
braking balance. Tech B says that brake drum may be cracked if it rings like a bell when tapped with a
light steel hammer. - answer>>Tech A
After machining a rotor, what should be done - answer>>Clean the rotor with soap and water
A brake pedal pulsation is most commonly due to - answer>>Excessive rotor thickness variation
, Rotor finish is measured in - answer>>Microinches
The lower the Ra of a rotor, the _____the surface - answer>>smoother
A disc brake rotor is being installed on a lathe for machining. Tech A says that the rotor should be
loosened, rotated 180 degrees and re tightened. Tech B says that the rotor is not warped. -
answer>>Tech B
Typical maximum rotor run out specifications are - answer>>.0003-.0005
Typical maximum rotor thickness variation specifications are - answer>>.0003-.0005
Tech A says that a low, soft brake pedal is an indication of a defective booster. Tech B says that there
should be at least two power-assisted brake applications after the engine stops running. -
answer>>Tech B
Technician A says that to check the operation of a vacuum brake booster, the brake pedal should be
depressed until the assist is depleted and then start the engine. Technician B says that the brake pedal
should drop when the engine starts, if the booster is okay. Which technician is correct? -
answer>>Tech B
Brake pedal feedback to the driver is provided by the - answer>>Reaction system
The proper operation of a vacuum brake booster requires that the engine be capable of supplying at
least - answer>>15 in hg vacuum
The purpose of the charcoal filter in the vacuum hose between the engine and the vacuum brake
booster is to - answer>>Trap gasoline vapors to keep them from entering the booster
A defective vacuum brake booster will cause a - answer>>Hard brake pedal
QUESTIONS AND 100% Verified ANSWERS
The rear brakes should be inspected, and adjusted if necessary, if the parking brake requires more than
- answer>>10 clicks
A rear drum brake is being inspected. The primary shoe is not contacting the anchor pin at the top.
Tech A says that this is normal. Tech B says that the parking brake cable may be adjusted too tight or is
stuck. - answer>>Tech B
Tech A says that a hose clamp can be used to compress the retainer fingers of a parking brake cable in
order to remove it from the backing plate. Tech b says a box-end wrench can be used instead of a hose
clamp. - answer>>Both Techs
Tech A says that an electric parking brake uses an electric motor to pull on the parking brake cable.
Tech B says that some electric parking brake systems use a computer-controlled motor attached to the
caliper. - answer>>Both Techs
Tech A says that aluminum brake drums use cast iron friction surfaces. Tech B says that up to .030 inch
should be left after machining a drum to allow for wear. - answer>>Both Techs
Tech A says that hard spots in a brake drum should be removed using a carbine tip machining tool.
Tech B says that the drum should be replaced if hard spots are found. - answer>>Tech B
Tech A says that brake drums on the same axle should be close to the same inside diameter for best
braking balance. Tech B says that brake drum may be cracked if it rings like a bell when tapped with a
light steel hammer. - answer>>Tech A
After machining a rotor, what should be done - answer>>Clean the rotor with soap and water
A brake pedal pulsation is most commonly due to - answer>>Excessive rotor thickness variation
, Rotor finish is measured in - answer>>Microinches
The lower the Ra of a rotor, the _____the surface - answer>>smoother
A disc brake rotor is being installed on a lathe for machining. Tech A says that the rotor should be
loosened, rotated 180 degrees and re tightened. Tech B says that the rotor is not warped. -
answer>>Tech B
Typical maximum rotor run out specifications are - answer>>.0003-.0005
Typical maximum rotor thickness variation specifications are - answer>>.0003-.0005
Tech A says that a low, soft brake pedal is an indication of a defective booster. Tech B says that there
should be at least two power-assisted brake applications after the engine stops running. -
answer>>Tech B
Technician A says that to check the operation of a vacuum brake booster, the brake pedal should be
depressed until the assist is depleted and then start the engine. Technician B says that the brake pedal
should drop when the engine starts, if the booster is okay. Which technician is correct? -
answer>>Tech B
Brake pedal feedback to the driver is provided by the - answer>>Reaction system
The proper operation of a vacuum brake booster requires that the engine be capable of supplying at
least - answer>>15 in hg vacuum
The purpose of the charcoal filter in the vacuum hose between the engine and the vacuum brake
booster is to - answer>>Trap gasoline vapors to keep them from entering the booster
A defective vacuum brake booster will cause a - answer>>Hard brake pedal
