New PMP Question & Answers with explanation

As part of your resource management plan, you have created a chart indicating the number of hours (Y-axis) that a senior programmer will be working over the months (X-axis) of the project. This is an example of a:
Select one
When writing the roles and responsibilities for team members, you should document the role, authority, responsibility, and competency for each team member. Where must you document this information?
Select one
You have been assigned as a project manager of a new project to be executed out of New York. However, you determine the project requires a Global Positioning Systems expert who is not available within the company in New York. After doing a little checking, you determine that the company has an expert based in London who is suitable for the project. However, the London-based employee is not willing to relocate to New York for the project. In such a case:
Select one
A tool that provides a visual representation of human resource allocation to a project, number of working hours, and availability on the project is a:
Select one
Which of the following is not a tool or technique of the Acquire Resources process?
Select one