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100+ Free AFCT Practice Questions

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2026 Statistics

Key Facts: AFCT Exam

100

Practice Questions

Local inventory

1–99

AFQT Percentile Range

Official ASVAB

30 days

Navy Retest Minimum

MILPERSMAN 1236-010

6 months

Army Retest Interval

Army HRC policy

18F/19G

Navy Paper Forms

Navy policy

There is no single public official AFCT item count, duration, form, or retest interval that applies to every service. This bank contains 100 independent practice questions across broad ASVAB skill areas; candidates must confirm the assigned form and governing policy with their education center.

Sample AFCT Practice Questions

Try these sample questions to test your AFCT exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which of the following is the primary gas in Earth's atmosphere?
A.Oxygen
B.Carbon dioxide
C.Nitrogen
D.Argon
Explanation: Nitrogen makes up approximately 78% of Earth's atmosphere by volume. Oxygen is the second most abundant at about 21%, with argon at 0.93% and carbon dioxide at 0.04%. This atmospheric composition has been relatively stable for hundreds of millions of years.
2What is the function of mitochondria in a cell?
A.Protein synthesis
B.Energy production (ATP)
C.Cell division
D.Waste removal
Explanation: Mitochondria are the powerhouses of the cell, responsible for producing adenosine triphosphate (ATP) through cellular respiration. They convert glucose and oxygen into usable energy. Each cell can contain hundreds to thousands of mitochondria depending on energy demands.
3Which type of rock is formed from cooled magma or lava?
A.Sedimentary
B.Metamorphic
C.Igneous
D.Fossiliferous
Explanation: Igneous rocks form when molten rock (magma underground or lava on the surface) cools and solidifies. Examples include granite (intrusive/slow cooling) and basalt (extrusive/fast cooling). The word 'igneous' comes from the Latin word for fire.
4What is the speed of light in a vacuum, approximately?
A.186,000 miles per hour
B.186,000 miles per second
C.300,000 miles per second
D.300,000 kilometers per hour
Explanation: The speed of light in a vacuum is approximately 186,000 miles per second (or about 300,000 kilometers per second). This is a fundamental constant in physics, denoted as 'c,' and is the maximum speed at which energy and information can travel.
5In the human body, which organ is primarily responsible for filtering blood and producing urine?
A.Liver
B.Kidneys
C.Pancreas
D.Spleen
Explanation: The kidneys filter approximately 200 liters of blood daily, removing waste products, excess water, and electrolytes to produce urine. Each kidney contains about one million nephrons, which are the functional filtering units. The kidneys also regulate blood pressure and produce erythropoietin for red blood cell production.
6Which element has the chemical symbol Fe?
A.Fluorine
B.Francium
C.Iron
D.Fermium
Explanation: Iron has the chemical symbol Fe, derived from the Latin word 'ferrum.' Iron is the most widely used metal, essential for steel production, and is the fourth most abundant element in Earth's crust. In the human body, iron is crucial for hemoglobin in red blood cells.
7What is the process by which plants convert sunlight into chemical energy?
A.Respiration
B.Fermentation
C.Photosynthesis
D.Transpiration
Explanation: Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen. The reaction occurs primarily in chloroplasts using chlorophyll. The overall equation is: 6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂.
8What causes tides on Earth?
A.Wind patterns over the ocean
B.Earth's rotation alone
C.Gravitational pull of the Moon and Sun
D.Underwater volcanic activity
Explanation: Tides are primarily caused by the gravitational pull of the Moon on Earth's oceans, with a secondary contribution from the Sun. The Moon's gravity creates a tidal bulge on the side of Earth nearest to it and another on the opposite side. Spring tides (extra high) occur when the Sun and Moon align; neap tides (moderate) occur when they are at right angles.
9In physics, what is the SI unit of force?
A.Joule
B.Watt
C.Newton
D.Pascal
Explanation: The Newton (N) is the SI unit of force, defined as the force required to accelerate a 1-kilogram mass at 1 meter per second squared (1 N = 1 kg·m/s²). It is named after Sir Isaac Newton. One Newton is approximately the weight of a small apple on Earth.
10Which layer of Earth's atmosphere contains the ozone layer?
A.Troposphere
B.Stratosphere
C.Mesosphere
D.Thermosphere
Explanation: The stratosphere, which extends from about 12 to 50 kilometers above Earth's surface, contains the ozone layer. The ozone layer absorbs most of the Sun's harmful ultraviolet (UV) radiation, protecting life on Earth. The ozone concentration peaks at approximately 20-25 km altitude.

About the AFCT Exam

The AFCT is an in-service ASVAB retest used by military personnel for classification and program requirements. Current delivery and retest rules are service-specific: Navy policy identifies paper forms 18F/19G at Navy sites and computer AFCT at most other DoD sites.

Assessment

Question count not published by the exam provider

Time Limit

Not published as one universal value across current AFCT forms

Passing Score

No universal passing score; required AFQT or composite scores depend on service policy and the target program or classification

Exam Fee

No public consumer registration fee identified; arrange through the eligible member's service office (Department of Defense / Base Education Centers)

AFCT Exam Content Outline

Not published

Verbal (WK + PC)

Word Knowledge and Paragraph Comprehension — vocabulary and reading skills

Not published

Mathematics (AR + MK)

Arithmetic Reasoning and Mathematics Knowledge — applied and theoretical math

Not published

Science & Technical (GS + EI + MC)

General Science, Electronics Information, and Mechanical Comprehension

Not published

Auto and Shop (AI + SI)

Auto Information and Shop Information are separate computer subtests but may combine into one paper section and reported AS score

Not published

Spatial (AO)

Assembling Objects — spatial visualization and part-to-whole relationships

How to Pass the AFCT Exam

What You Need to Know

  • Passing score: No universal passing score; required AFQT or composite scores depend on service policy and the target program or classification
  • Assessment: Question count not published by the exam provider
  • Time limit: Not published as one universal value across current AFCT forms
  • Exam fee: No public consumer registration fee identified; arrange through the eligible member's service office

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

AFCT Study Tips from Top Performers

1Confirm the current service program, accepted score or composite, authorization, and assigned AFCT delivery form before choosing a study allocation
2Review the prior score report with the servicing office and identify the skill areas that actually contribute to the confirmed requirement
3For an AFQT-focused goal, practice Arithmetic Reasoning, Mathematics Knowledge, Word Knowledge, and Paragraph Comprehension
4Add technical or spatial content only when the confirmed service composite or assigned form makes it relevant
5Use original practice questions and classify each miss as a concept, reading, calculation, unit, or timing error
6Ask the test site for the current timing and navigation rules instead of simulating an unsupported universal duration

Frequently Asked Questions

What is the difference between the AFCT and the ASVAB?

The AFCT is the in-service ASVAB retest used in service classification processes. The underlying aptitude areas and AFQT scoring concepts are related, but current delivery is service-site dependent: Navy policy identifies paper forms 18F/19G at Navy AFCT sites and computer AFCT at most other DoD service sites.

How often can I retake the AFCT?

Retest policy is service-specific. Current Navy policy requires at least 30 days. Army and Department of the Air Force policies generally require six calendar months subject to their exception processes. Marine Corps policy generally requires six months and no more than two administrations per calendar year; an approved waiver cannot reduce the interval below 90 days. Confirm the controlling policy with your current service testing office.

Will improving my AFCT score help me change my MOS?

It may, when the controlling reclassification program accepts a new AFCT result and the candidate meets its current composite and other eligibility requirements. Verify the named program and score requirement before retesting.

How do I sign up to take the AFCT?

Contact the education or test-control office that serves your branch and installation. Authorization, documentation, eligibility, appointment, and score-posting requirements are service-specific; use the current Army, Navy, Marine, or other controlling policy rather than a generic checklist.

What subtests are on the AFCT?

DoD requires the entire authorized battery rather than selected subtests. Computer delivery uses General Science, Arithmetic Reasoning, Word Knowledge, Paragraph Comprehension, Mathematics Knowledge, Electronics Information, Auto Information, Shop Information, Mechanical Comprehension, and Assembling Objects. On paper delivery, Auto and Shop combine as one AS section and Assembling Objects is not administered. Confirm the assigned delivery form with your testing office.