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dump truck 
Truck equipped with a dump body; it is used for bulk transport.
cab
Compartment from which the driver operates the truck.
dump body
Open or closed container; when raised by the elevation cylinder, it discharges its bulk material.
ladder
Device composed of treads and side rails that provides access to the cab.
frame
Metal structure of the dump truck.
rib
Crosspiece welded to the outside walls of the dump body to reinforce it.
diesel engine compartment
Combustion engine in which the compressed air becomes sufficiently hot to ignite the injected fuel.
canopy
Metal surface that protects the cab from falling material during loading.
