1.Briefly explain the differences between filed changes, change orders, and cardinal changes.

2.Construction contracts typically include a change clause. Why? What is typically included in such contract clause?

3.On a public project, what are the risks for a contractor that performs work requested on a cardinal change?

4.What is the difference between "extra work" and "additional work" in terms of a construction contract?For each case, is the contractor is generally entitled to more compensation?

5.An owner verbally requests that a contractor change a portion of the work from what was originally described in the contract documents. The contractor realizes that the change will cost more than originally planned.What actions should the contractor take to ensure he will receive payment for the change?