Careers Career Paths ABCs of the ASVAB Entrance Test All About the Armed Forces Vocational Aptitude Battery Share PINTEREST Email Print Martin Shields/Photographer's Choice/Getty Images Career Paths US Military Careers Technology Careers Sports Careers Sales Project Management Professional Writer Music Careers Media Legal Careers Government Careers Finance Careers Fiction Writing Careers Entertainment Careers Criminology Careers Book Publishing Aviation Animal Careers Advertising Learn More By Rod Powers Rod Powers Air Force NCO Academy Rod Powers was a retired Air Force First Sergeant with 22 years of active duty service. Learn about our Editorial Process Updated on 06/25/19 The Armed Forces Vocational Aptitude Battery (ASVAB) is the entrance test to enlist in the US Military. You can't enlist in the US Military without taking the ASVAB. The ASVAB has two primary purposes: First, it determines whether you have the mental aptitude to enlist in the military branch of your choice, and second, the results help the service(s) determine which military job(s) you have the mental aptitude for. General Information Structure of the ASVAB Types of ASVAB Tests The AFQT Score Military Job Line Scores ASVAB and Commissioning Re-Testing Studying for the ASVAB ASVAB Sample Questions Featured Video