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Difficulty: MediumWeight Definitions and Limits (GVWR, GCWR, Axle Weights)

Match each commercial motor vehicle weight rating term or regulatory standard on the left with its correct statutory definition or federal limit on the right.

  • Gross Vehicle Weight Rating (GVWR)The maximum allowable total weight specified by the manufacturer for a single standalone vehicle plus its complete load.
  • Gross Combination Weight Rating (GCWR)The maximum total weight specified by the manufacturer of the power unit for the combined truck, trailer(s), and all cargo.
  • Gross Axle Weight Rating (GAWR)The maximum structural load rating specified by the manufacturer that a single axle system can safely support.
  • Federal Tandem Axle Legal LimitThe maximum federal statutory weight of 34,000 lb34,000\text{ lb} permitted across two or more consecutive axles spaced between 4040 and 9696 inches apart.

Answer

Gross Vehicle Weight Rating matches the single vehicle manufacturer rating; Gross Combination Weight Rating matches the combined power unit, trailer, and load rating; Gross Axle Weight Rating matches the single axle system capacity rating; and the Federal Tandem Axle Legal Limit matches the 34,000 lb federal statutory limit.
Gross Vehicle Weight Rating (GVWR) applies strictly to an individual vehicle and its payload as determined by the manufacturer. Gross Combination Weight Rating (GCWR) applies to the combined power unit, all connected trailers, and total cargo. Gross Axle Weight Rating (GAWR) defines the manufacturer limit for an individual axle assembly. The Federal Tandem Axle Legal Limit is statutory law capping tandem group weight at 34,000 lb34,000\text{ lb} on interstate routes.

Step-by-Step Solution

1
Differentiate manufacturer single-unit ratings from combination-unit ratings.
GVWR applies specifically to a single vehicle unit, whereas GCWR encompasses the power unit, towed trailing units, and total combined cargo.
Clear separation between single-unit and multi-unit manufacturer specifications is necessary to avoid overloading drive units.
2
Identify component-level ratings versus statutory axle group limits.
GAWR specifies individual axle structural capacities, while the federal tandem limit establishes the statutory 34,000 lb34,000\text{ lb} ceiling on interstate highways.
Axles must comply with both manufacturer structural ratings and statutory highway weight limits.
3
Align each term on the left with its corresponding operational definition on the right.
All 4 weight parameters are matched to their distinct engineering and regulatory meanings.
Ensures full compliance with commercial driver regulatory definitions and safe loading standards.

Key Concept

Distinction between manufacturer ratings (GVWR, GCWR, GAWR) and federal statutory weight limits.
Estimated Time:1m 0s
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Topics

Weight Definitions and Limits (GVWR, GCWR, Axle Weights)

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