New PMP Question & Answers with explanation

Cause-and-Effect diagrams are used to illustrate how various factors might link to potential problems or effects. They are also called:
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You are the project manager managing a project to design a print head for dot matrix printers. In order to determine ideal settings for print quality, the quality manager of the company suggests trying out various scenarios for printing by varying certain parameters on the print head. Identifying such variables which influence the product or process under development is called:
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The Plan-Do-Check-Act (PDCA) cycle as the basis for quality improvement is usually attributed to:
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A control chart is used to determine whether a process is stable or has predictable performance. When a process is within acceptable limits, the process does not need adjustment. How are these upper and lower control limits determined?
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As a project manager, you are analyzing the costs incurred in a project. Which of the following costs cannot be classified under cost of nonconformance?
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