Connect each wheel and tire assembly defect condition on the left with its accurate regulatory standard or failure mechanism on the right.
- Steer axle tire with 3/32-inch remaining tread depth in major groovesViolates the 4/32-inch minimum tread depth mandate for front steering positions
- Radial and bias-ply tires mounted together on the same axleCreates hazardous handling instability due to mismatched tire construction dynamics
- Shiny, polished metal rings visible around rim stud bolt holesIndicates active wheel shifting caused by loose or under-torqued lug nuts
- Missing valve stem cap with road dirt packed in the valve coreAllows particulate contamination that compromises internal valve core airtightness
Answer
Match steer axle 3/32-inch tread to the 4/32-inch regulatory violation; mismatched radial/bias-ply to handling instability; shiny metal around stud holes to loose lug nuts; and missing valve cap with dirt to valve core airtightness failure.
Each defect corresponds directly to a core pre-trip inspection standard: front steer tires demand at least 4/32-inch tread depth, tire carcass types cannot be mixed across an axle, shiny metal around bolt holes verifies loose lug hardware, and uncapped valve stems allow dirt to breach internal seals.
Step-by-Step Solution
Key Concept
Critical safety thresholds and visual defect diagnostics for commercial vehicle tires, wheels, and mounting hardware.
Estimated Time:1m 30s