New PMP Question & Answers with explanation

Cindy has been working in a manufacturing project as a project manager. This project is intended to produce high-quality semiconductors to use in computers. Since semiconductors are produced from silicon wafers, she contracted a company to provide silicon wafers to the project on an ongoing basis. For unknown reasons, the contractor provided low-quality wafers to the project, compromising the electrical performance of the semiconductors. Overwhelmed by complaints from the computer division, Cindy is now obligated to correct the manufacturing defects to avoid future liabilities. In this scenario, the costs Cindy incurred are:
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Control charts are used to determine the stability of a process. Which of the following best describes the range of the control limits applied on a control chart?
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Some tools or techniques can be used across various project processes to plan, execute, or control the characteristics of project elements. Which of the following is used as a tool in both the Control Quality and Plan Quality Management processes?
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A project needed to monitor the technical performance of the project and capture data related to how many errors or defects had been identified and how many remained uncorrected. Which of the following techniques should the project use?
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Which of the following processes will determine the correctness of deliverables?
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