New PMP Question & Answers with explanation

Public recognition of superior performance creates positive reinforcement for the team members. When is the best time for a project manager to recognize team members' performance?
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The morale of the team members of a project is very low. The team members feel they were not given opportunities to participate in the organizational team development activities due to over-allocation to project tasks, and so, they missed opportunities to develop. Which of the following is the most likely cause of this situation?
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All team members have not yet been hired for a project. However, the project manager went ahead with estimating activity durations, budgeting, and other activities. What could likely happen to the activity durations?
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A project manager had scheduled a number of training programs for his team. However, he was aware that apart from planned training, unplanned training also took place in a number of ways. Which of these is not one of the ways in which unplanned training can take place?
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Your project team members have just started to work together and are now adjusting their work habits and behaviors to support each other. Which stage of the Tuckman ladder has your team just entered?
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