Watch MM, GT first.
Army MOS guide
91J Quartermaster and Chemical Equipment Repairer ASVAB score requirements
Score target and study focus for Army 91J.
91J
Army MOS score brief
Quartermaster and Chemical Equipment Repairer
ASVAB line score targetMM 87+ or MM 82+ and GT 85+
Repairs quartermaster and chemical equipment, including pumps, heaters, laundry, bath, and decontamination systems.
Good fit if you like tools, diagnostics, engines, electronics, inspections, repairs, and practical technical work.
Mechanical repair, fleet maintenance, aviation maintenance, electronics repair, field service, and technical operations.
Study first
Focus these areas
- Build toward MM 87+ or MM 82+ and GT 85+ with mechanical comprehension, electronics, auto, shop, science, and math review as needed.
- Review diagrams, tools, engines, hydraulics, circuits, diagnostics, and troubleshooting vocabulary.
Daily work
What you may do
- Inspect, troubleshoot, repair, or maintain systems tied to quartermaster and chemical equipment repairer duties.
- Use tools, test equipment, technical manuals, safety checks, and maintenance records.
91J Army MOS FAQ
Common Quartermaster and Chemical Equipment Repairer ASVAB questions
What ASVAB score do you need for 91J Quartermaster and Chemical Equipment Repairer?
MM 87+ or MM 82+ and GT 85+ is the source-backed planning target shown on this MeritMarch guide. Treat it as study guidance, not an enlistment promise, because Army requirements, openings, waivers, medical qualification, and recruiter guidance can change.
What does a 91J Quartermaster and Chemical Equipment Repairer do?
Repairs quartermaster and chemical equipment, including pumps, heaters, laundry, bath, and decontamination systems.
Which ASVAB sections should I study for 91J?
Start with the score areas tied to MM 87+ or MM 82+ and GT 85+: Auto Information, Shop Information, Mechanical Comprehension, Electronics Information. If your AFQT is not stable yet, also keep Arithmetic Reasoning, Math Knowledge, Word Knowledge, and Paragraph Comprehension in the plan.
Is 91J guaranteed if I meet the score target?
No. ASVAB scores are only part of Army job access. Current openings, contract options, background checks, medical standards, citizenship rules, waivers, and Army needs all affect whether a MOS is available.
Where did MeritMarch get the 91J score target?
This page uses MM 87+ or MM 82+ and GT 85+ from Army enlisted MOS specifications, Chapter 10C, 10-91J, reviewed April 30, 2026. It is still shown as planning guidance because official requirements and openings can change.
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Sources and official confirmation
Source checked April 30, 2026: Army enlisted MOS specifications, Chapter 10C, 10-91J. Current Army job access still depends on Army policy, openings, medical qualification, background screening, waivers, and recruiter guidance.
More context reviewed April 30, 2026: GoArmy ASVAB entrance test, Official ASVAB military-jobs composites, Army enlisted MOS specifications, Chapter 10C, MeritMarch Army jobs based on ASVAB scores guide.