Author: Anonymous

The coefficient of traction can be defined as the factor by which the total weight of the equipment should be multiplied to determine the maximum possible tractive force between the wheels or tracks and the surface just before slipping will occur.

Articulated trucks consist of two individual frames joined by pin, and can be easily operated over soft ground.

_______________ is the resistance of a level surface to constant-velocity motion across it, and it results from friction of the driving mechanism, tire flexing, and the force required to shear through or ride over the supporting surface.

Buckets of loaders are rated in both heaped and struck capacities. _________________ is based on the SAE standard of a 2:1 material repose angle.

Fill factor is the ratio of the actual loose volume of material in the bucket compared to the bucket’s rated-heaped capacity. It varies based on the type of material being handled and the type of excavator.

Which of the following equipment is a clamshell that is especially suited for lifting material vertically?

Construction cost estimates are based on the total quantity of the work to be performed multiplied by the ____________ of the work.

_____________________ is a term that is used to designate the tractive force between the tires of a machine’s driving wheels and the surface on which they travel.

A contractor has a project involving the construction of a small manufacturing plant. The contractor has selected a borrow site and has decided to use 27-cubic yard dump trucks to haul the needed fill material. The contractor has decided to use a hydraulic excavator with a shovel attachment to load the trucks. The excavator has expected productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is 0.48hr. The job site operation efficiency is assumed as 0.8. Please answer the next two questions. What is the expected fleet production if only 6 trucks are available to the fleet?

Please match the following three methods of pushing loading scrapers with their corresponding diagrams?