wrote on Aug 14^th, 2015 at 11:50pm:

Hello, I just found out that I will be facing a pre-employment polygraph test very soon. In order to prepare myself I plan on giving myself practice tests by recording (audibly) questions on my phone and having them played while I sit in a chair and answer them. My questions are: What would be some good questions for me to practice with? How much time should be in between each question? (I thought I had read in the book that the examiner asks questions 20-30 seconds apart) How many questions should I include in my practice test (I have no clue how many questions the examiner will ask me during the test.) Thank you!

The format is likely to be similar to that of the federal "Law Enforcement Pre-Employment Test" (LEPET). You'll find examples of the questions asked in the U.S. Customs and Border Protection polygraph handbook, which you can download here:

https://antipolygraph.org/documents/cbp-polygraph-handbook-2010-01-07.pdf

For details on the deceptions on which polygraphy relies, and on strategies for mitigating the risk of a false positive outcome, see The Lie Behind the Lie Detector (especially chapters 3 & 4):

https://antipolygraph.org/lie-behind-the-lie-detector.pdf