Solid-composite run-flat inserts are reinforced ring assemblies mounted directly around the wheel rim inside tubeless military vehicle tires. When ballistic penetration or severe punctures cause total tire deflation, the tire tread collapses onto the outer circumference of the insert rather than the metal rim. This design prevents rim damage, maintains directional steering control, and allows the vehicle to travel up to 30 miles at reduced speeds. However, the insert adds significant unsprung rotating mass to the axle, which slightly increases fuel consumption during normal highway driving.
Based on the passage, match each statement on the left with its accurate textual status on the right.
- The insert allows continued vehicle travel for up to 30 miles following deflation.Explicitly stated operational distance limitation confirmed by the passage
- The insert eliminates the requirement for routine tire pressure checks.NOT mentioned or supported anywhere in the passage (unsupported assertion)
- The vehicle retains directional steering control after the tire collapses.Explicitly stated vehicle control benefit following deflation
- The added rotating mass causes a slight increase in normal fuel consumption.Explicitly stated adverse efficiency impact during normal highway travel
Answer
The statement regarding eliminating routine tire pressure checks matches with being not mentioned in the passage; the 30-mile range matches with the operational distance limitation; maintaining steering control matches with the vehicle control benefit; and increased fuel consumption matches with the adverse efficiency impact.
The assertion that run-flat inserts eliminate routine tire pressure checks is completely absent from the text, making it an unmentioned assertion. The remaining three statements represent explicit facts directly confirmed by the passage: the 30-mile range limit, the preservation of steering control, and the increase in normal fuel consumption.
Step-by-Step Solution
Key Concept
Negative Detail Identification in Reading Comprehension
Estimated Time:1m 15s