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1. Disc brakes have an advantage over drum brakes because they:
A. Are lighter
B. Fade less when hot
C. Require less hydraulic pressure
D. Are cheaper
2. Brake fade is reduced in disc brakes because:
A. They are self-energizing
B. Heat dissipates more effectively
C. Pads expand under heat
D. They use thicker linings
3. Disc brakes are preferred in front wheels because they:
A. Require smaller calipers
B. Provide more consistent braking
C. Are easier to adjust
D. Use less fluid
, 4. The vibration damper on an automobile engine is fastened to the:
A. Flywheel
B. Crankshaft
C. Camshaft
D. Drive pulley
5. A warped rotor will cause:
A. Hard pedal
B. Pulsating pedal
C. Low pedal
D. Spongy pedal
6. Disc brakes are typically used with:
A. Hydraulic systems
B. Air brake systems
C. Magnetic systems
D. Vacuum-only systems
7. The primary purpose of a vibration damper is to:
A. Absorb valve noise
B. Reduce torsional vibration of the crankshaft
C. Cool engine oil
D. Balance the pistons
8. A defective vibration damper may cause:
A. Misfiring
B. Crankshaft failure
C. High oil consumption
D. Poor fuel economy