New PMP Question & Answers with explanation

All the following are tools of control quality except:
Select one
Five of the seven phases on the project contain work that is substantically similar. What must the project manager do?
Select one
Which of the following is an output of the plan quality management process:
Select one
While testing the strength of concrete poured on your project. You discover that over 35 percent of the concrete does not meet your company`s quality standards. You feel certain the concrete will function as it is, and you don't think the concrete needs to meet the quality level specified. What should you do?
Select one
A project manager and team from a firm that designs railroad equipment are tasked to design a machine to load stone onto railroad cars. The design allows for 2 percent spillage, amounting to over two tons of spilled rock per day. In which of the following does the project manager document quality control, quality assurance and quality improvements for this project?
Select one