New PMP Question & Answers with explanation

You are the project manager responsible for building a 100,000-squarefoot data center. One of the scheduled activities in your plan is to install the Computer Room Air Conditioning (CRAC) units. However, a raised floor must be installed in the data center before installation of the units can begin. This is an example of what type of precedence relationship?
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Which of these is accurate regarding the Develop Schedule process?
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You are the project manager responsible for building a 100,000-squarefoot data center. One of the scheduled activities in your plan is to install the Computer Room Air Conditioning (CRAC) units. However, before beginning the installation of the units, a raised floor must be installed for the units to bolt to. This is an example of what type of dependency?
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You are managing a project that involves work on a film shoot. The editing activity can happen only after the film is shot. The best description of the logical relationship between the editing and shooting of the film is:
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The critical path method (CPM) calculates the theoretical early start and finish dates and late start and finish dates. The difference between the late and early start of a task is a:
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