Which of the following does not represent the critical path completion time?

The use of personal PPE is more important than the modification of the work environment because the PPE is on the worker.

Which of the following is the least likely reason for a deviation between projected profit and actual profit?

Work zones involve construction on or near roadways and does not refer to any construction work site.

Some of the highest civil engineering employment industries involve the public sector such as federal, state, and local government  

The goal of construction scheduling is to match the utilization of equipment, materials, and labor and to sequence the use of such resources to complete the project in a timely manner.

Assume the cost to date of an activity is $20k for 5% of the project, and the total budged cost is $200k. What is the forecast completion amount for the activity?  

One reason why production rates change over time is because a new site sometimes requires a greater initial learning curve before steady state production is reached.

Schedule progress and expenditure progress are mutually exclusive since one is dealing with time and the other with money.

For typical heavy civil construction, such as road construction involving easily measurable quantities of aggregates and pavements, which is the most suitable payment method?