Complete problem solutions for the 2021 edition of the Second Class ME Technical Skills Examination. - Title: Second Class ME Technical Skills Examination Complete Problem Solutions 2021 - Published: 2021 - Target Years: 37th (2015) - 41st (2019) - Author: Second Class ME Technical Skills Examination Problem Research Group Thank you for viewing. I purchased this for certification, but I haven't used it much. There are only a few pages with highlighting and writing.