During a multi-point vehicle inspection, an automotive technician observes several distinct tire wear patterns across different fleet vehicles. Match each observed tire wear pattern with its primary operational or mechanical root cause.
- Symmetrical wear concentrated along both outer tread shoulders with minimal center tread wearChronic underinflation causing the center crown to bow inward and load the sidewall shoulders
- Rapid, accelerated wear localized strictly along the center tread ribChronic overinflation causing the crown to balloon outward and concentrate load at the centerline
- Directional saw-tooth or feathered edges across individual tread ribs felt when wiping across the tireIncorrect wheel toe alignment causing continuous lateral tire scrub across the road surface
- Scalloped, localized scooped-out dips and cupped bald spots around the tire circumferenceWorn suspension shock absorbers or severe wheel imbalance causing dynamic tire hop
Cevap
Match symmetrical dual-shoulder wear with chronic underinflation; center rib wear with chronic overinflation; feathered saw-tooth wear with improper toe alignment; and cupping or scalloping with worn shock absorbers or dynamic wheel imbalance.
Each tire wear profile represents a distinct mechanical or operating fault: underinflation unloads the center and overloads both shoulders; overinflation crowns the center rib; toe misalignment causes horizontal dragging that feathers tread blocks; and weak suspension damping allows uncontrolled vertical bouncing that cuts rhythmic cupped dips into the tread circumference.
Adım Adım Çözüm
Anahtar Kavram
Tire Wear Pattern Diagnostics and Chassis Alignment Relationships
Tahmini Süre:1m 30s