Equipment cost is often one of a contractor’s largest expens…

Equipment cost is often one of a contractor’s largest expense.  To be successful, equipment owners must carefully analyze and answer two separate questions about the cost of their machines.  The first question is how much does it cost to operate the machine on a project? and the second question is?

Assume a rubber-tired tractor has a total weight of 20,000 l…

Assume a rubber-tired tractor has a total weight of 20,000 lb on its driving wheels.  The maximum rimpull in low gear is 9,500 lb.  If the tractor is operating on dry clay, with a coefficient of traction of 0.60, what is the maximum possible rimpull prior to slippage of the wheels? (Please show all work as best as possible and type out anything that you would like to clearly articulate)

In 1970 the US Congress enacted the Williams-Steiger Act. Th…

In 1970 the US Congress enacted the Williams-Steiger Act. The Act imposed nationwide safety standards on the construction industry.  Under this Act, employers are required to provide their employees a safe place to work, and to maintain extensive safety records. What is this Act commonly referred to?