What does the MM score on ASVAB mean?

The MM score, also known as the Mechanical Maintenance score, is an important component of the Armed Services Vocational Aptitude Battery (ASVAB). The MM score measures an individual's aptitude for mechanical and technical tasks. It is one of the nine line scores that make up the ASVAB, along with other scores such as the General Science (GS) score, the Arithmetic Reasoning (AR) score, and the Electronics Information (EI) score.

The MM score is based on the individual's performance on questions related to mechanical and technical knowledge and reasoning. These questions may cover topics such as:

- Basic mechanical concepts and principles

- Troubleshooting and problem-solving

- Electrical systems and components

- Tools and equipment usage

- Mechanical maintenance and repair procedures

A high MM score indicates that the individual has a good understanding of mechanical concepts and principles, and can apply them to solve practical problems. This score is particularly relevant for jobs that involve mechanical maintenance, repair, or troubleshooting of equipment, such as in the fields of automotive repair, industrial machinery maintenance, and aviation maintenance.

The MM score is used by the military branches to identify individuals who are well-suited for careers that require mechanical and technical skills. It can also be used as a selection criterion for civilian jobs and technical training programs.