The Construction Specifications Institute offers the Construction Documents Technologist certification. The University of West Florida offers a preparatory course for their BCN students in a fast-paced intense learning. The questions contained in the app provides a continual study aid that can supplement the coursework; however, for those that aren't taking the course, it can provide a great 'test' after reading the Project Delivery Practice Guide (PDPG). All questions were created from the content within the chapters of the PDPG. Additionally, this app provides an audio version that you can listen to when you do not have the luxury of viewing the screen.
Even if you aren't preparing to take the CDT, the app is a good refresher of the knowledge that is used in many aspects of the construction industry.