New PMP Question & Answers with explanation

In a textile manufacturing project, a team divided the project work into 35 work packages and assigned a few work packages to the design department for review. After the review, the manager of the design department requested that the team further divide the work packages into more manageable work components for estimating and scheduling resources. Which of the following techniques should the team use to satisfy the manager's request?
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Jane is worried about her project because many of her tasks are moving slowly, and two critical tasks may slip. She conducts a thorough resource analysis and finds out that there are five people who will be free next week. She would like to assign those people to finish her tasks early and prevent the project completion date from slipping. This is an example of:
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A project manager is estimating the project duration and finds that the only information available to him is a previous project that was quite different from the current one. However, some portions of the previous project were similar to the current one. Which of the following tools is the project manager likely to use to compare current project's activity durations with the similar previous activities?
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A project manager needed to shorten a project schedule and decided to employ crashing, a schedule compression technique. Which of the following activities would not be an example of crashing?
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Which of the following is not an example of parametric estimating?
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