The General Technical or GT score is one of the most important line scores computed from your results on the ASVAB test. It’s determined by adding your Verbal Expression (VE) and Arithmetic Reasoning (AR) scores together and is used by all five branches of the military (it’s the “G” in the Air Force MAGE).
It’s doubly important because the scores that make up the GT are also three of the scores that make up your overall AFQT score which qualifies you for enlistment. (VE = Work Knowledge (WK) + Paragraph Comprehension (PC)).
Also important to note is that, despite the name, the General Technical score doesn’t include your scores on any of the technical or mechanical subtests so it’s not necessary to have any particular technical knowledge to get a high ASVAB GT score.
To prepare for the subtests that make up the GT score, concentrate on taking practice tests in verbal expression, arithmetic reasoning, and paragraph comprehension.