NJATC workbook answer keys are found online at TriciaJoy.com and WPraceTech.com as of 2015. Full versions of the NJATC instrumentation workbook answers are available for download as PDF files, as is the basic electronic workbook. TriciaJoy.com also features an instrumentation textbook and an orientation workbook.
At WPraceTech.com, site visitors can access a downloadable list of compiled documents for the NJATC workbook answer keys. This site also provides answer keys to the NJATC fundamentals workbook as well as the motors, instrumentation and orientation workbooks.
The NJATC, or National Joint Apprenticeship and Training Committee, is the former name of the Electrical Alliance, a nonprofit organization created by the International Brotherhood of Electrical Workers and the National Electrical Contractors Association.