Study guide
1.4 Military Composite Line Scores & MOS/AFSC/Rating Classification
CAT-ASVAB Computer Adaptive ASVAB
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1 Chapter 1: CAT-ASVAB Overview, Adaptive Mechanics & Test Strategy
1.1 CAT-ASVAB Architecture, MEPS Administration & Subtest Structure 1.2 Computer Adaptive Testing (CAT), IRT Engine & Pacing Rules 1.3 AFQT Scoring Formula, VE Weighting & Service Branch Minimums 1.4 Military Composite Line Scores & MOS/AFSC/Rating Classification
2 Chapter 2: Word Knowledge (WK)
2.1 Greek and Latin Roots, Prefixes, and Suffixes 2.2 Context Clues, Secondary Meanings, and Nuanced Synonyms 2.3 Military, Technical, and Formal Vocabulary in Context 2.4 High-Frequency Word Bank and the 36-Second Word-Attack Protocol
3 Chapter 3: Paragraph Comprehension (PC)
3.1 Identifying Main Ideas, Central Themes, and Author Purpose 3.2 Supporting Details, Factual Extraction, and Structural Analysis 3.3 Inferences, Contextual Meaning, and Tone Evaluation
4 Chapter 4: Arithmetic Reasoning (AR)
4.1 Translating Complex Word Problems into Algebraic Expressions 4.2 Ratios, Proportions, Rates, and Combined Work Problems 4.3 Percentages, Interest, Profit, and Financial Math 4.4 Applied Geometric Word Problems (Area, Perimeter, Volume)
5 Chapter 5: Mathematics Knowledge (MK)
5.1 Number Properties, Exponents, Radicals, and Polynomials 5.2 Linear Equations, Quadratic Equations, and Inequalities 5.3 Geometric Principles, Coordinate Geometry, and Trigonometry Fundamentals 5.4 Basic Probability, Permutations, Combinations, and Statistics 5.5 Fractions, Rational Expressions, and Non-Calculator Computation
6 Chapter 6: General Science (GS)
6.1 Cellular Biology, Human Anatomy, and Biological Systems 6.2 Chemistry Fundamentals, Atomic Structure, and Reactions 6.3 Classical Physics, Energy, Forces, and Motion 6.4 Earth Science, Meteorology, Astronomy, and Environmental Science 6.5 Scientific Method, Measurement Systems, and Laboratory Instruments
7 Chapter 7: Electronics Information (EI)
7.1 Voltage, Current, Resistance, Ohm's Law, and Power 7.2 Circuit Analysis: Series, Parallel, and Combination Circuits with Kirchhoff's Laws 7.3 Electronic Components, Semiconductor Devices, and Schematic Symbols 7.4 Magnetism, Electromagnetism, Motors, and Generators 7.5 Circuit Protection, Wiring, Measurement Instruments, and Electrical Safety
8 Chapter 8: Auto Information (AI)
8.1 Internal Combustion Engines and the Four-Stroke Cycle 8.2 Powertrain, Transmission, Drivetrain, and Fuel Systems 8.3 Braking Systems, Suspension, Steering, and Electrical Diagnostics
9 Chapter 9: Shop Information (SI)
9.1 Hand Tools, Measuring Instruments, and Cutting Implements 9.2 Power Tools, Fasteners, Hardware, and Joining Techniques 9.3 Woodworking, Metalworking, Materials, and Workshop Safety
10 Chapter 10: Mechanical Comprehension (MC)
10.1 Simple Machines: Levers, Classes, and Mechanical Advantage 10.2 Pulleys, Wheel and Axle Systems, and Inclined Planes 10.3 Gears, Belt and Chain Drives, Cams, and Torque Transmission 10.4 Fluid Power, Hydraulics, Pneumatics, and Buoyancy (Pascal & Archimedes) 10.5 Forces, Friction, Work, Power, Energy Conservation, and Wave Mechanics
11 Chapter 11: Assembling Objects (AO)
11.1 Spatial Relationship Fundamentals & 2D Silhouette Synthesis 11.2 Connection Point Problems, Interior Seams, and Labeled Points 11.3 High-Speed Pacing, Elimination Tactics, and Visual Pattern Recognition
1.4 Military Composite Line Scores & MOS/AFSC/Rating Classification
Key Takeaways Explain This Topic AI
The AFQT decides whether you may enlist at all; Service composite scores decide which MOS, rating, or AFSC you may hold.
The Army uses ten composites, and General Technical (GT = VE + AR) is the one most often cited as a gate for Special Forces, OCS, and flight-warrant programs.
Four Army composites still reference Coding Speed or Numerical Operations, subtests removed from the ASVAB in December 2002, so those formulas cannot be reproduced from a current score sheet.
The Air Force and Space Force use four MAGE composites: Mechanical, Administrative, General, and Electronic.
Because the AS score feeds most technical composites, Auto Information and Shop Information carry far more career weight than their 20 combined scored items suggest.
Last updated: August 2026
1.4 Military Composite Line Scores & MOS/AFSC/Rating Classification
Core Principle: Achieving a passing AFQT score only guarantees that you can put on a uniform. What specific job you will perform—whether you serve as a Cyber Warfare Specialist, an Aviation Helicopter Repairer, an Intelligence Analyst, or an Infantry Rifleman—is determined entirely by your Military Composite (Line) Scores .
Each military branch has developed its own proprietary mathematical formulas that combine specific standard subtest scores to measure aptitude for distinct career clusters. Understanding these formulas allows you to target your study efforts toward the exact subtests that govern your dream military career.
Standard Scores vs. Raw Scores
Before composite line scores can be computed, your raw performance on each of the 10 subtests is converted into a Standard Score (often referred to as a Standard 10 score):
Standard scores are calibrated on a scale where 50 50 50 represents the national average , with a standard deviation of 10 10 10 .
Most examinees score between 30 30 30 and 70 70 70 on individual subtests (spanning ± 2 \pm 2 ± 2 standard deviations).
Composite line scores are formed by directly adding these standard scores together according to branch-specific formulas. +-----------------------------------------------------------------------------------------+
- | HOW SUBTESTS FEED MILITARY CAREER SELECTION |
- +-----------------------------------------------------------------------------------------+
- | 10 SUBTEST STANDARD SCORES (GS, AR, WK, PC, MK, EI, AI, SI, MC, AO) |
- | || |
- | +-----------------------------+-----------------------------+ |
- | | | | |
- | v v v |
- | ARMY LINE SCORES AIR FORCE MAGE COMPOSITES NAVY RATING COMPOSITES |
- | 10 Scores (GT, EL, ST...) 4 Areas (M, A, G, E) Custom combinations (NUC, AECF)|
- | | | | |
- | v v v |
- | MOS Assignment AFSC Assignment Rating / NEC Assignment |
- +-----------------------------------------------------------------------------------------+
- Army Composite Line Scores (10 Areas)
The United States Army aggregates standard subtest scores into 10 distinct composite line scores . Career qualification for every Army Military Occupational Specialty (MOS) is tied directly to these metrics:
Line Score Code Composite Name Standard Formula Representative Army Careers (MOS) & Cutoffs
GT General Technical VE + AR \text{VE} + \text{AR} VE + AR 110+: Special Forces (18X), Officer Candidate (OCS), Flight Warrant (153A), Cyber (17C), Intel (35F)
CL Clerical VE + AR + MK \text{VE} + \text{AR} + \text{MK} VE + AR + MK 100+: Human Resources (42A), Finance Management (36B), Legal Specialist (27D)
EL Electronics GS + AR + MK + EI \text{GS} + \text{AR} + \text{MK} + \text{EI} GS + AR + MK + EI 105+: IT Specialist (25B), Cyber Network Defender (25D), Radar Repairer (94M)
ST Skilled Technical GS + VE + MK + MC \text{GS} + \text{VE} + \text{MK} + \text{MC} GS + VE + MK + MC 105+: Combat Medic (68W), Geospatial Engineer (12Y), Explosive Ordnance Disposal (89D)
SC Surveillance & Comm VE + AR + AS + MC \text{VE} + \text{AR} + \text{AS} + \text{MC} VE + AR + AS + MC 100+: Signal Support Systems (25U), Satellite Comm (25S), Military Police (31B)
MM Mechanical Maint AS + MC + EI \text{AS} + \text{MC} + \text{EI} AS + MC + EI (+ legacy NO) 100+: Helicopter Repairer (15T/15U), Bradley Mechanic (91M), Abrams Repairer (91A)
GM General Maintenance GS + AS + MK + EI \text{GS} + \text{AS} + \text{MK} + \text{EI} GS + AS + MK + EI 95+: Wheeled Vehicle Mechanic (91B), Small Arms Repairer (91F), Utilities (91C)
CO Combat Operations AR + AS + MC \text{AR} + \text{AS} + \text{MC} AR + AS + MC (+ legacy CS) 90+: Infantryman (11B), Cavalry Scout (19D), M1 Armor Crewman (19K)
FA Field Artillery AR + MK + MC \text{AR} + \text{MK} + \text{MC} AR + MK + MC (+ legacy CS) 95+: Fire Support Specialist (13F), MLRS Crewmember (13M), Cannon Crew (13B)
OF Operators & Food VE + AS + MC \text{VE} + \text{AS} + \text{MC} VE + AS + MC (+ legacy NO) 90+: Motor Transport Operator (88M), Culinary Specialist (92G), Water Craft (88K)
(Note: on the CAT-ASVAB, AS \text{AS} AS is the single combined Auto & Shop score reported from the separately administered AI \text{AI} AI and SI \text{SI} SI subtests.)
Two subtests in these formulas no longer exist
Four Army composites — CO, FA, MM, and OF — were originally written around Coding Speed (CS) and Numerical Operations (NO) . Both subtests were removed from the ASVAB in December 2002 , in the same revision that added Assembling Objects. You cannot earn a CS or NO score today, and no amount of study will change those terms.
This matters for two practical reasons:
Do not chase a retired subtest. Prep material that tells you to "practice Coding Speed drills for the CO composite" is decades out of date. The parts of CO, FA, MM, and OF you can actually move are AR, MK, MC, VE, and AS.
Do not try to reverse-engineer your own line scores. Because these composites carry terms you were never tested on, and because VE is a converted verbal score rather than a simple sum, the numbers a recruiter reads off your score sheet will not match arithmetic you do at home. Use the formulas to decide what to study , not to predict a number.
Cutoff caveat that applies to every table in this section. Minimum composite scores for specific jobs are set by each Service, are revised as personnel needs change, and are not published as a single authoritative public list. The figures below are representative of commonly cited requirements and are useful for aiming your preparation. Confirm the current requirement for any specific MOS, rating, or AFSC with a recruiter before you count on it.
The Legendary Army "110 GT" Score
In the Army culture, the General Technical (GT) score is revered as the single most critical career gatekeeper. A GT score of 110 or higher is the mandatory prerequisite for virtually all elite special operations and career progression programs:
- 18X — Special Forces Enlistment Option (Green Berets)
- 75th Ranger Regiment Assessment
- Officer Candidate School (OCS)
- Warrant Officer Flight Training (153A Rotary Wing Aviator)
- 160th Special Operations Aviation Regiment (SOAR)
- Psychological Operations (37F) & Civil Affairs (38B)
Because GT = VE + AR \text{GT} = \text{VE} + \text{AR} GT = VE + AR , the same three subtests that build your verbal and arithmetic reasoning scores drive both your AFQT and your GT. That overlap is the single highest-leverage fact in ASVAB preparation: Word Knowledge, Paragraph Comprehension, and Arithmetic Reasoning determine whether you can enlist and whether the Army opportunities that screen on GT are open to you. Treat the specific 110 threshold as the commonly cited standard rather than a permanent one — program prerequisites are set by the Army and change over time.
Air Force MAGE Composite Scores
The United States Air Force and United States Space Force compress subtest scores into four composite areas known by the acronym MAGE : Mechanical (M) , Administrative (A) , General (G) , and Electronic (E) . Air Force Specialty Codes (AFSCs) require minimum percentiles in one or more MAGE areas: +-----------------------------------------------------------------------------------------+
- | AIR FORCE MAGE COMPOSITES |
- +-----------------------------------------------------------------------------------------+
- | M - MECHANICAL : GS + MC + 2*AS |
- | Aero Propulsion (2A6X1), Tactical Aircraft Maintenance (2A3X3) |
- +-----------------------------------------------------------------------------------------+
- | A - ADMINISTRATIVE: VE (Word Knowledge + Paragraph Comprehension) |
- | Personnel (3F0X1), Financial Management (6F0X1), Paralegal (5J0X1) |
- +-----------------------------------------------------------------------------------------+
- | G - GENERAL : VE + AR |
- | Cyber Warfare (1B4X1), Operations Intel (1N0X1), Security Forces |
- +-----------------------------------------------------------------------------------------+
- | E - ELECTRONIC : AR + MK + EI + GS |
- | Avionics (2A0X1), Space Systems (1C6X1), Cyber Defense (1D7X1) |
- +-----------------------------------------------------------------------------------------+
The specific AFSC minimums below are illustrative of commonly published requirements; the Air Force revises them with personnel needs and does not maintain a single public cutoff list, so confirm any target AFSC with a recruiter.
MAGE Composite Area Calculation Formula Representative AFSCs & Cutoffs
Mechanical (M) GS + MC + 2 × AS \text{GS} + \text{MC} + 2 \times \text{AS} GS + MC + 2 × AS M47+: Aircraft Structural Maint (2A7X3); M60+: Special Flight Engineer (1A9X1)
Administrative (A) VE \text{VE} VE (derived from WK + PC \text{WK} + \text{PC} WK + PC ) A41+: Health Services Admin (4A0X1); A67+: Paralegal Specialist (5J0X1)
General (G) VE + AR \text{VE} + \text{AR} VE + AR G64+: Operations Intelligence (1N0X1); G72+: Air Traffic Control (1C1X1)
Electronic (E) AR + MK + EI + GS \text{AR} + \text{MK} + \text{EI} + \text{GS} AR + MK + EI + GS E70+: Cyber Defense (1D7X1); E70+: Space Systems Operations (1C6X1)
Navy Ratings & Advanced Technical Composites
The United States Navy does not use generic line score acronyms; instead, it sets a customised additive combination of subtest scores for each individual Navy Rating (enlisted occupation) . Its advanced technical ratings sit among the highest composite requirements in the Department of Defense.
Two cautions before you read the table. First, navy.com does not publish a universal AFQT floor and does not maintain a single public list of rating composites, so these figures are representative of long-standing published requirements rather than a live official feed. Second, several Navy composites still reference Coding Speed (CS) , a subtest retired from the ASVAB in December 2002; where a legacy option appears, the recruiter resolves it. Verify any rating you are targeting directly with a Navy recruiter:
Navy Career Field Rating Codes Required Composite Formula Minimum Combined Cutoff Score
Nuclear Field (NUC) MM(N), ET(N), EM(N) VE + AR + MK + MC \text{VE} + \text{AR} + \text{MK} + \text{MC} VE + AR + MK + MC ; OR AR + MK + EI + GS \text{AR} + \text{MK} + \text{EI} + \text{GS} AR + MK + EI + GS 252+ (Standard Score Sum); (Plus NAPT Exam qualification)
Advanced Electronics (AECF) ET, FC, FCA AR + MK + EI + GS \text{AR} + \text{MK} + \text{EI} + \text{GS} AR + MK + EI + GS 222+ (Combined Sum)
Cyber Warfare Tech (CWT) CWT (formerly CTN) AR + 2 × MK + GS \text{AR} + 2 \times \text{MK} + \text{GS} AR + 2 × MK + GS ; OR VE + AR + MK + MC \text{VE} + \text{AR} + \text{MK} + \text{MC} VE + AR + MK + MC 255+ (Option 1); 235+ (Option 2)
Hospital Corpsman (HM) HM GS + MK + VE \text{GS} + \text{MK} + \text{VE} GS + MK + VE 156+ (Combined Sum)
Special Warfare (SEAL) SO GS + MC + EI \text{GS} + \text{MC} + \text{EI} GS + MC + EI ; OR a legacy verbal-math option that still lists the retired CS \text{CS} CS subtest 170+ (Option 1); Legacy option handled by the recruiter
Aviation Ordnanceman (AO) AO AR + AS + MK + EI \text{AR} + \text{AS} + \text{MK} + \text{EI} AR + AS + MK + EI 185+ (Combined Sum)
Marine Corps Composite Line Scores
The United States Marine Corps utilizes four primary composite line scores that align closely with Army and Air Force principles, driving qualification for all Marine Corps Military Occupational Specialties:
General Technical (GT): VE + AR \text{VE} + \text{AR} VE + AR
Requirements: 110+ GT required for Marine Reconnaissance (0321), Marine Special Operations Command (MARSOC Critical Skills Operator 0372), Air Traffic Controller (7257), and Marine Aviation Officer candidates.
Electronics (EL): GS + AR + MK + EI \text{GS} + \text{AR} + \text{MK} + \text{EI} GS + AR + MK + EI
Requirements: 105+ to 115+ EL required for Cyber Security Technician (1721), Tactical Air Defense Controller (7236), and Aviation Electronics Technician (6400 series).
Mechanical Maintenance (MM): AR + AS + MC + EI \text{AR} + \text{AS} + \text{MC} + \text{EI} AR + AS + MC + EI
Requirements: 95+ to 105+ MM required for Tank Mechanic, Light Armored Vehicle (LAV) Repairer (2147), and Aviation Maintenance maintainers.
Clerical (CL): VE + AR + MK \text{VE} + \text{AR} + \text{MK} VE + AR + MK
Requirements: 100+ CL required for Financial Management (3451), Supply Administration (3043), and Legal Services Specialist (4421).
Cross-Subtest Synergies & Long-Term Career ROI
When preparing for the CAT-ASVAB, candidates should recognize that certain subtests deliver exceptional cross-branch return on investment (ROI):
The Golden Trio ( V E , A R , M K VE, AR, MK V E , A R , M K ): These three academic subjects govern the AFQT (enlistment eligibility), Army GT (special forces/officer), Army CL, Air Force G & A, and Marine GT/CL. Excelling in these three guarantees broad eligibility across 80% of all military occupations.
The Technical Multiplier ( E I , M C , G S EI, MC, GS E I , MC , GS ): Pairing high math/verbal scores with strong performance in Electronics Information and Mechanical Comprehension unlocks the military's most lucrative technical career fields—such as Nuclear Propulsion, Avionics, Cyber Warfare, and Biomedical Equipment Repair. These fields also carry the strongest civilian transferability — aerospace and avionics maintenance, defense contracting, commercial nuclear operations, and biomedical equipment service — and they are where enlistment and re-enlistment incentives are concentrated. Specific bonus amounts change constantly and are set in your enlistment contract, so treat any dollar figure you read in prep material as unverified.