Which term describes a power unit, meaning a tractor-only unit used to move trailers or continue a load if the original tractor is disabled?

Which term describes a power unit, meaning a tractor-only unit used to move trailers or continue a load if the original tractor is disabled?

• A. Truck/Tractor
• B. Carrier
• C. Load Search/Carrier Profile
• D. Power Only/Power Unit

Answer: (D)

A power unit is the tractor portion of a tractor-trailer setup—the engine and cab that provides the pulling power. This term specifically describes a tractor-only unit that is used to move trailers or to continue a load if the original tractor is disabled. In freight terms, “power-only” describes operations where a carrier provides only the power unit to pull a trailer or to salvage a shipment when the primary tractor can’t perform. That precise meaning—a tractor-only unit used to move trailers or to finish a load when the original tractor is out of service—is why this term fits best. The other options don’t capture that specific role. A general truck/tractor is just the vehicle type, not the concept of providing power to move a trailer in a salvage or backup scenario. A carrier refers to the company providing service, not the equipment itself. Load search/carrier profile relates to locating loads or carriers, not the equipment type used to move trailers.

A power unit is the tractor portion of a tractor-trailer setup—the engine and cab that provides the pulling power. This term specifically describes a tractor-only unit that is used to move trailers or to continue a load if the original tractor is disabled. In freight terms, “power-only” describes operations where a carrier provides only the power unit to pull a trailer or to salvage a shipment when the primary tractor can’t perform. That precise meaning—a tractor-only unit used to move trailers or to finish a load when the original tractor is out of service—is why this term fits best.

The other options don’t capture that specific role. A general truck/tractor is just the vehicle type, not the concept of providing power to move a trailer in a salvage or backup scenario. A carrier refers to the company providing service, not the equipment itself. Load search/carrier profile relates to locating loads or carriers, not the equipment type used to move trailers.