[Solved] The selection of a mutually exclusive project means that all other projects with a positive net present value may also be selected. Focus Controls: Refers to mechanisms or systems put in place to maintain or adjust the focus in various equipment or processes. Objectives: Specific, measurable targets set to achieve goals within a certain timeframe, often defining desired outcomes or achievements. Slide Clips: Small devices or tools designed to hold slides (transparencies) in place during a presentation or viewing session. Microscope: An instrument used to magnify and examine objects that are too small to be seen by the naked eye.