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Hoja de Repaso del Examen ASVAB (2026)
Una hoja de repaso gratis e imprimible del examen ASVAB: los 128 puntos de mayor rendimiento, agrupados en 8 secciones que siguen las áreas de contenido del examen, cada sección con su peso publicado.
- Gratis para leer, imprimir y guardar — sin registro, sin correo electrónico, sin muro de pago.
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- 800 preguntas de práctica gratuitas de ASVAB sobre el mismo material, cada una explicada.
- Última actualización: septiembre de 2026.
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En la guía de ASVAB: Los 9 capítulos de subpruebas, cada uno con cifras clave, ejemplos resueltos, trampas nombradas y autoevaluación. La práctica aquí sigue siendo gratis.
Arithmetic Reasoning
14% del examen- Identify the unknown
- Restate what the question asks in your own words before touching the numbers so you solve for the right quantity.
- Match keywords to operations
- Words like total and combined signal addition, difference signals subtraction, of often signals multiplication, and per signals division.
- Track your units
- Carry units such as miles, dollars, or hours through the work; the units of your answer should match what the question asks for.
- Watch for extra information
- Some problems include numbers you do not need, so select only the values relevant to the question.
- Convert percent to decimal
- Divide a percent by 100 to get a decimal, so 8% becomes 0.08 before you multiply.
- Find a percent of a number
- Multiply the whole by the decimal form of the percent; 25% of 240 is 0.25 times 240, or 60.
- Convert fractions to decimals
- Divide the numerator by the denominator, so 3/4 equals 0.75.
- Increase or decrease by a percent
- For a 15% discount multiply by 0.85; for an 8% tax multiply by 1.08.
- Write a ratio in lowest terms
- Reduce a ratio the same way you reduce a fraction to compare quantities clearly.
- Set up a proportion
- Place matching quantities in the same position across an equals sign, then cross-multiply to solve for the unknown.
- Use unit rates
- Divide to find the cost or amount per single unit, which makes comparison and scaling straightforward.
- Apply scale factors
- Multiply every part of a ratio by the same factor so the relationship stays the same.
- Compute an average
- Add all the values and divide by how many there are; to find a missing value, multiply the average by the count to get the total first.
- Use simple interest
- Interest equals principal times rate times time, calculated only on the original amount.
- Solve work and rate problems
- Multiply rate by number of workers and by time to find total output, keeping units consistent.
- Estimate to check
- Round the numbers and estimate the answer to confirm your exact result is in a sensible range.
Word Knowledge
13% del examen- Look for most nearly means
- The task is the closest match in meaning, not a perfect definition, so choose the best available option.
- Use sentence context
- When the word appears in a sentence, let the surrounding words guide which meaning applies.
- Beware of multiple meanings
- Many words have more than one meaning; pick the one that fits the way the word is used.
- Eliminate opposites
- Test writers often include an antonym as a trap, so rule out choices that mean the reverse.
- Recognize common roots
- Roots such as port meaning carry or spect meaning look appear in many words and hint at meaning.
- Use prefixes
- A prefix like un- or in- often reverses meaning, while re- suggests again and pre- suggests before.
- Use suffixes
- Endings such as -ful, -less, or -tion signal whether a word is describing, lacking, or naming something.
- Combine the clues
- Assemble the meanings of the parts to make a reasonable guess at the whole word.
- Eliminate clearly wrong choices
- Remove any option you are sure is unrelated to improve your odds among the rest.
- Judge positive or negative tone
- Decide whether the word feels positive or negative and match it to a choice with the same tone.
- Think of the word in a sentence
- Use the target word in a familiar phrase to sense its meaning before checking the options.
- Never leave a blank
- Because there is no wrong-answer penalty, always mark your best guess.
- Read widely
- Regular reading of articles and books exposes you to words in natural context.
- Keep a word list
- Write down unfamiliar words with their meanings and review them often.
- Learn words in groups
- Study related synonyms together so you can distinguish shades of meaning.
- Use new words actively
- Speaking and writing with new words cements them in memory for test day.
Paragraph Comprehension
12% del examen- Locate the topic sentence
- The main idea often appears in the first or last sentence of a short passage.
- Summarize in one sentence
- Put the passage's point in your own words to confirm you understand it.
- Distinguish main from supporting
- Separate the central idea from the examples and details that back it up.
- Ignore outside knowledge
- Answer from the passage alone, even if you know more about the topic than it states.
- Scan for keywords
- Match important words from the question to the same words in the passage to find the relevant sentence.
- Read the full sentence
- Read around the keyword so you capture the complete meaning, not a fragment.
- Match the restatement
- The correct choice often paraphrases the passage rather than quoting it word for word.
- Verify against the text
- Confirm your choice by pointing to the exact place in the passage that supports it.
- Stay close to the text
- A correct inference follows directly from the stated information without a large leap.
- Avoid overreaching
- Reject choices that could be true in general but are not supported by the passage.
- Watch signal words
- Words such as because, therefore, and however show relationships that guide inferences.
- Test each option
- Ask whether the passage gives evidence for a choice before selecting it.
- Identify the author's purpose
- Decide whether the passage aims to inform, persuade, or explain.
- Sense the tone
- Notice word choice that reveals a positive, negative, or neutral attitude.
- Recognize cause and effect
- Track how one idea leads to another to follow the author's reasoning.
- Manage your time
- Read efficiently and answer from the passage so you keep pace across all questions.
Mathematics Knowledge
13% del examen- Follow order of operations
- Evaluate parentheses, then exponents, then multiplication and division, then addition and subtraction.
- Use exponents correctly
- An exponent tells how many times to multiply the base by itself, so 3 cubed is 3 times 3 times 3.
- Understand square roots
- The square root of a number is the value that multiplied by itself gives that number.
- Know factors and multiples
- A factor divides a number evenly, while a multiple is the product of that number and a whole number.
- Combine like terms
- Add or subtract only terms that share the same variable, so 3x plus 2x equals 5x.
- Isolate the variable
- Perform the same inverse operation on both sides to get the variable alone.
- Check by substitution
- Put your solution back into the original equation to confirm it is correct.
- Handle negative numbers
- Track signs carefully, remembering that subtracting a negative is the same as adding.
- Sum of triangle angles
- The interior angles of any triangle always add up to 180 degrees.
- Area of a triangle
- Area equals one half times base times height, so remember the one-half factor.
- Circle formulas
- Circumference equals 2 times pi times the radius, and area equals pi times the radius squared.
- Perimeter and volume
- Perimeter is the distance around a shape, while volume of a cube is the edge length cubed.
- Memorize core formulas
- Know the common area, perimeter, and volume formulas cold so you can apply them quickly.
- Substitute carefully
- Replace each variable with its given value, keeping units and signs correct.
- Rearrange when needed
- Solve a formula for a different variable by applying inverse operations.
- Estimate the result
- Judge whether your computed answer is reasonable for the size of the shape or numbers involved.
General Science
13% del examen- Know cell parts
- The nucleus stores genetic material, mitochondria release energy, and chloroplasts carry out photosynthesis in plants.
- Understand body systems
- The circulatory system pumps blood, the respiratory system handles breathing, and the digestive system processes food.
- Learn basic genetics
- A gene is a segment of DNA that carries inherited traits from parents to offspring.
- Recognize blood components
- White blood cells fight infection, red blood cells carry oxygen, and platelets help blood clot.
- Know atomic structure
- Protons carry positive charge and neutrons no charge in the nucleus, while electrons carry negative charge around it.
- Read chemical formulas
- Water is H2O, carbon dioxide is CO2, and table salt is NaCl.
- Distinguish changes
- A chemical change like rusting forms a new substance, while melting or boiling is a physical change.
- Understand states of matter
- Matter exists as solid, liquid, or gas, and changes state when energy is added or removed.
- Define forces
- Gravity pulls objects toward Earth's center, and friction opposes motion between surfaces.
- Know energy types
- Potential energy is stored by position or state, while kinetic energy is the energy of motion.
- Understand energy conversion
- Energy changes form, as when a stretched spring's potential energy becomes motion.
- Recall temperature points
- Pure water freezes at 0 degrees Celsius and boils at 100 degrees Celsius at sea level.
- Know Earth's layers
- The atmosphere is the surrounding gases, the lithosphere is the solid crust, and the hydrosphere is the water.
- Order the planets
- Mercury is closest to the Sun, followed by Venus, Earth, and Mars.
- Understand the water cycle
- Evaporation turns liquid water to vapor, and condensation turns vapor back to liquid.
- Recognize measurement scales
- The Richter scale measures earthquake magnitude, a common earth-science fact.
Electronics Information
12% del examen- Voltage in volts
- Voltage is the electrical pressure that pushes current through a circuit, measured in volts.
- Current in amperes
- Current is the flow of electric charge, measured in amperes, often called amps.
- Resistance in ohms
- Resistance opposes the flow of current and is measured in ohms.
- Power in watts
- Electrical power is the rate of energy use, measured in watts and equal to voltage times current.
- State Ohm's law
- Voltage equals current times resistance, written as V equals I times R.
- Solve for current
- Rearrange to current equals voltage divided by resistance to find current.
- Calculate power
- Power equals voltage times current, giving the watts a device uses.
- Apply the formulas
- Substitute the known values, such as 12 volts and 4 ohms, to find the missing quantity like 3 amperes.
- Add series resistances
- In a series circuit, resistances add directly, so two 10-ohm resistors total 20 ohms.
- Understand parallel circuits
- In a parallel circuit, the total resistance is less than the smallest single resistor.
- Identify components
- A resistor limits current, a capacitor stores charge, and a diode allows current in only one direction.
- Know protective devices
- A fuse breaks the circuit when current gets too high to prevent damage.
- Recognize good conductors
- Copper is an excellent conductor and is widely used in wiring.
- Recognize insulators
- Rubber, glass, and plastic resist current and protect against shock.
- Understand AC and DC
- Alternating current reverses direction periodically, while direct current flows steadily one way.
- Know the transformer's role
- A transformer steps AC voltage up or down for efficient power transfer.
Mechanical Comprehension
12% del examen- Balanced forces
- Equal and opposite forces cancel out, so an object stays still or keeps a constant motion.
- Unbalanced forces
- A net force in one direction causes an object to accelerate that way.
- Friction opposes motion
- Friction acts between surfaces sliding against each other and resists their movement.
- Gravity acts downward
- Gravity pulls objects toward Earth's center and gives them weight.
- Levers multiply force
- A lever pivots on a fulcrum to increase the force applied to a load.
- Wheel and axle
- A doorknob or steering wheel turns a small axle with a larger wheel for more turning force.
- Pulleys change direction
- A fixed pulley lets you pull down to lift a load up, and added pulleys reduce effort.
- Inclined planes and wedges
- A ramp is an inclined plane, and a wedge is a moving inclined plane that splits objects.
- Increase mechanical advantage
- A longer effort arm on a lever multiplies force more, easing the lifting of heavy loads.
- Gear direction
- Two meshed gears turn in opposite directions.
- Gear speed trade-off
- A small gear driving a large gear turns the large one more slowly but with more torque.
- Fulcrum placement
- Placing the fulcrum closer to the load increases a lever's mechanical advantage.
- Gravitational potential energy
- An object stores more potential energy the higher it is raised.
- Elastic potential energy
- A compressed or stretched spring stores energy that becomes motion when released.
- Air pressure and altitude
- Air pressure is greatest at sea level and decreases with altitude.
- Energy conservation
- Energy is not lost but changes form, such as potential energy converting to kinetic energy.
Auto and Shop Information
11% del examen- Crankshaft converts motion
- The crankshaft turns the pistons' up-and-down motion into rotating motion that drives the wheels.
- Spark plug ignites fuel
- The spark plug produces a spark that ignites the compressed fuel-air mixture in the cylinder.
- Four-stroke cycle
- The cycle runs intake, compression, power, then exhaust, with the power stroke following compression.
- Camshaft controls valves
- The camshaft opens and closes the intake and exhaust valves at the right times.
- Cooling system
- The radiator circulates coolant and releases heat to keep the engine from overheating.
- Electrical system
- The battery stores energy to start the engine, and the alternator recharges it while running.
- Braking system
- Brakes use friction, usually pads on discs, to slow and stop the vehicle.
- Transmission
- The transmission uses gears to transfer engine power to the wheels and match speed to conditions.
- Screwdrivers
- A Phillips screwdriver fits a cross-shaped head, while a flat-blade fits a single straight slot.
- Wrenches and torque
- A torque wrench tightens bolts to a specific, measured tightness to avoid damage.
- Measuring tools
- A feeler gauge measures small gaps like a spark plug gap, and a level checks for horizontal.
- Striking and cutting tools
- A hammer drives nails, and a hacksaw with its fine-toothed blade cuts metal.
- Use the correct tool
- Matching the right tool to the task, such as a hammer for nails, prevents damage and injury.
- Understand fasteners
- Bolts, nuts, and screws hold parts together and require the proper driver or wrench.
- Maintain fluids
- Engine oil lubricates moving parts, reducing friction, wear, and heat.
- Follow safety habits
- Keeping a clean workspace and wearing protection reduces the risk of accidents.
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