TT August '09 Pop Quiz: Calipers

Students should chose the following answer that BEST completes the following statements.

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This month’s pop quiz addresses brake calipers. Choose the answer that best completes the following statements or questions.

(Note – Answer key provided following the Pop Quiz – answers in bold)

1) A caliper that includes, hardware and friction material is referred to as a __________.
A: naked or bare caliper
B: loaded caliper
C: semi-loaded caliper
D:  full-fledged caliper

2) Fluid leaks caused by worn caliper piston seals are dangerous because they can lead to a loss of __________ pressure in the brake circuit that may cause the brakes to fail.
A: heat
B: gravity
C: braking
D: hydraulic

3 Most calipers are a “___________” design with slides or bushings that allow the caliper to move sideways and center itself over the rotor when the brakes are applied.
A: floating
B: fixed
C: stagnant
D: calibrated

4 Even if a caliper is loaded, specialized brake greases and lubricants will be needed for installation. Caliper slides and bushings should be lubricated with an non-petroleum _____________ brake grease.
A super-dense
B high-temperature
C thick-paste
D friction-fighting

5) If the brake caliper is aluminum, like on the Chevrolet Malibu, make sure that you look at the core for corrosion around the inlet port where the ____________ fitting makes contact.
A drum bolt
B banjo bolt
C guitar bolt
D flute bolt

6) To avoid a brake _______ by the friction from side-to-side, when installing loaded calipers on a vehicle, both calipers should be replaced at the same time.
A: pull
B: conflict
C: high cost
D: backlash


7) If a technician forgets to install an ______________ clip or installs one that doesn’t fit properly, the newly installed pads may be noisy.
A: anti-locking braking system
B: anti-spin
C: anti-rattle
D: anti-roll  

8) When rebuilding a caliper, _______________ pistons often can’t be reused because they’re too badly corroded, scratched or pitted and may cause the caliper to leak.
A: cobalt
B: steel
C: copper
D: aluminum

ANSWER KEY BELOW  - Scroll down

(answers in bold)

1) A caliper that includes hardware and friction material is referred to as a _________.
A: naked or bare caliper
B: loaded caliper
C: semi-loaded caliper
D:  full-fledged caliper

2) Fluid leaks caused by worn caliper piston seals are dangerous because they can lead to a loss of ____________ pressure in the brake circuit that may cause the brakes to fail.
A: heat
B: gravity
C: braking
D: hydraulic

3 Most calipers are a  “__________” design with slides or bushings that allow the caliper to move sideways and center itself over the rotor when the brakes are applied.
A: floating
B: fixed
C: stagnant
D: calibrated

4 Even if a caliper is loaded, specialized brake greases and lubricants will be needed for installation. Caliper slides and bushings should be lubricated with a non-petroleum ____________ brake grease.
A super-dense
B high-temperature
C thickly applied
D friction-fighting

5) If the brake caliper is aluminum, like on the Chevrolet Malibu, make sure that you look at the core for corrosion around the inlet port where the ______________ fitting makes contact.
A drum
B banjo bolt
C guitar bolt
D flute bolt

6) To avoid a brake  _______________ by the friction from side-to-side, when installing loaded calipers on a vehicle, both calipers should be replaced at the same time.
A: pull
B: conflict
C: high cost
D: backlash


7) If a technician forgets to install an _____________ clip or installs one that doesn’t fit properly, the newly installed pads may be noisy.
A: anti-locking braking system
B: anti-spin
C: anti-rattle
D: anti-roll 

8) When rebuilding a caliper, ___________ pistons often can’t be reused because they’re too badly corroded, scratched or pitted and may cause the caliper to leak.
A: cobalt
B: steel
C: copper
D: aluminum