What is a passage's main idea?

The central point the author wants the whole passage to communicate.

What is the standard order of operations?

Parentheses → exponents → multiplication and division from left to right → addition and subtraction from left to right.

What is electric current?

The rate at which electric charge flows.

What properties stay unchanged when a shape is rotated?

Its size, side lengths, angles, and handedness stay unchanged; only orientation changes.

What does abundant mean?

Plentiful; present in large amounts.

What is a prime number?

A whole number greater than 1 with exactly two positive factors: 1 and itself.

What is the nucleus's main role in a eukaryotic cell?

It stores most of the cell's DNA and helps control gene activity.

What does an internal-combustion engine do?

Converts fuel's chemical energy into mechanical motion through combustion.

How does a reflection affect a shape's orientation?

It reverses handedness, producing a mirror image.

What is a factor of a number?

A whole number that divides the number with no remainder.

What do mitochondria do?

They release usable energy from food molecules and make much of the cell's ATP.

What eye protection is standard when chips, sparks, or flying debris are possible?

Properly rated safety glasses or goggles suited to the hazard.

What is a translation of a shape?

A slide that changes position without rotating or reflecting the shape.

What is a supporting detail?

A fact, example, reason, or explanation that develops the main idea.

What is a multiple of a number?

A result of multiplying that number by an integer.

What is the cell membrane's main job?

It controls what enters and leaves the cell.

When force acts along the direction of motion, what is mechanical work?

Force times displacement: W=Fd.

What must be true of two boundaries that join exactly?

Their lengths and contours must match while facing in complementary directions.

What does concise mean?

Brief but clear; using no unnecessary words.

How do you convert a fraction to a decimal?

Divide the numerator by the denominator.

What is photosynthesis?

The process by which plants, algae, and some microbes use light energy to make sugars from carbon dioxide and water.

How should a tab-and-slot pair behave in a valid assembly?

The tab should fit the slot without leaving a gap or creating overlap.

How do you convert a decimal to a percent?

Multiply by 100 and add the percent sign.

What is cellular respiration?

A process that releases energy from food molecules, commonly using oxygen and producing carbon dioxide and water.

What does a piston do in a reciprocating engine?

Moves back and forth in the cylinder and transfers combustion force to the connecting rod.

Which edges determine an assembled object's outer silhouette?

Only edges that remain exposed after the pieces join.

What is an inference in reading?

A conclusion supported by passage evidence even when it is not stated directly.

How do you convert a percent to a decimal?

Divide by 100, or move the decimal point two places left.

The molecule that stores hereditary information in living organisms.

What fastener is a Phillips screwdriver designed to turn?

A screw with a cross-shaped recess.

What usually happens to two edges joined along a shared boundary?

They become internal to the assembly rather than part of the outside outline.

What does diligent mean?

Careful and persistent in one's work.

What is the reciprocal of a nonzero number?

The number that gives 1 when multiplied by the original number; for a/b, it is b/a.

A segment of DNA that contributes to a functional product or inherited trait.

Why does overlap eliminate a proposed piece arrangement?

Solid pieces cannot occupy the same area in a valid assembly.

What makes two fractions equivalent?

They represent the same value because the numerator and denominator were multiplied or divided by the same nonzero number.

Electric potential difference: energy transferred per unit charge.

What scale rule applies when comparing pieces meant to join?

They must be compared at the same scale; rotation does not resize a piece.

What is an author's purpose?

The main reason for writing, such as to inform, explain, persuade, or entertain.

What is the main job of red blood cells?

Carry oxygen, mainly through hemoglobin.

What does a crankshaft do in a piston engine?

Converts the pistons' back-and-forth motion into rotation.

What is a useful anchor for mental assembly?

A distinctive corner, notch, tab, or long edge that can be tracked across rotations.

What does obsolete mean?

No longer used because something newer has replaced it.

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Review 220 original ASVAB flashcards covering vocabulary, math formulas and setup patterns, science, electronics, auto and shop knowledge, mechanics, and bounded spatial concepts.

Eftir höfund Open Study Contributor

Um þennan stokk

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Review the facts worth recalling before you spend time on full practice questions. These 220 English flashcards cover all four official ASVAB domains and map to the ten computerized subtests without copying the test.

What the cards practice

Verbal — 45 cards: produce meanings for 20 useful words, connect 10 roots or affixes with their meanings and examples, and recall 15 bounded reading concepts such as main idea, inference, tone, context clues, and passage structure.
Math — 55 cards: recall number rules, algebra relationships, geometry formulas, and ten common setup patterns for rates, interest, percent change, mixtures, work, probability, scale, and word-to-expression translation.
Science — 40 cards: connect life-science structures and processes, chemistry and physics terms, and Earth and space processes with their defining functions or principles.
Technical — 65 cards: connect electrical quantities, circuit behavior, vehicle and shop components, tools, simple machines, and physical principles with their functions, units, formulas, or relationships.
Spatial — 15 cards: recall bounded rotation, reflection, boundary-matching, silhouette, overlap, scale, landmark, symmetry, and viewpoint concepts that support spatial-relation practice.

The cards use useful forward mappings such as term → meaning, quantity → unit or formula, component → function, and principle → relationship. A few prompts ask for a setup from familiar wording. The deck does not mechanically reverse every fact, add answer-choice recognition, or turn every definition into several near-duplicates.

What needs separate practice

Flashcards are a poor substitute for passage-heavy Paragraph Comprehension drills, timed multi-step Arithmetic Reasoning problems, and full visual Assembling Objects items. Those need original passages or diagrams, realistic answer choices, and time pressure, so they are explicitly excluded here. The deck also excludes score tables, changing service cutoffs, advanced electronics design, diagnostic auto repair, hazardous procedures, and obscure trade trivia.

Learning order

The sequence makes repeated passes across verbal, math, science, technical, and spatial material. Foundations arrive before dependent knowledge: number operations before algebra and applied setups, cell and matter basics before larger systems, electrical quantities before circuit rules, and component names before mechanical relationships. Related directions and near-duplicates are separated by at least three unrelated cards where practical; the later technical tail keeps rotating among electronics, auto, and mechanics.

Scope and provenance

The official ASVAB subtests page defines the four domains and ten computerized subtests. Its administration note explains that Auto Information and Shop Information are separate on the computerized test but combined on the paper-and-pencil test and for the reported AS score. The official preparation guidance recommends a solid foundation in mathematics, English, science, and technical coursework.

The facts are common high-school and introductory technical knowledge. The prompts, answers, selection, and order were independently written and manually checked. No competitor cards or third-party media were used. The generated cover is original and contains no official marks.

The Common knowledge · CC0 1.0 label applies to the original wording, organization, metadata, and cover to the extent applicable rights exist. It does not claim ownership of facts or third-party names.

Source and compatibility review: August 31, 2026.

This is an independent, unofficial study deck. It is not affiliated with, endorsed by, or supplied with questions by the ASVAB Testing Program or the U.S. Department of Defense. No official questions, passages, answer choices, score tables, curriculum wording, or protected prep-book wording were copied.

Spjöld í þessum stokki

Spjald 1
Spurning
What is a passage's main idea?
Svar
The central point the author wants the whole passage to communicate.
Spjald 2
Spurning
What is the standard order of operations?
Svar
Parentheses → exponents → multiplication and division from left to right → addition and subtraction from left to right.
Spjald 3
Spurning
What is the basic structural and functional unit of life?
Svar
The cell.
Spjald 4
Spurning
What is electric current?
Svar
The rate at which electric charge flows.
Spjald 5
Spurning
What properties stay unchanged when a shape is rotated?
Svar
Its size, side lengths, angles, and handedness stay unchanged; only orientation changes.
Spjald 6
Spurning
What does abundant mean?
Svar
Plentiful; present in large amounts.
Spjald 7
Spurning
What is a prime number?
Svar
A whole number greater than 1 with exactly two positive factors: 1 and itself.
Spjald 8
Spurning
What is the nucleus's main role in a eukaryotic cell?
Svar
It stores most of the cell's DNA and helps control gene activity.
Spjald 9
Spurning
What does an internal-combustion engine do?
Svar
Converts fuel's chemical energy into mechanical motion through combustion.
Spjald 10
Spurning
How does a reflection affect a shape's orientation?
Svar
It reverses handedness, producing a mirror image.
Spjald 11
Spurning
What does the prefix pre- mean?
Svar
Before, as in preview.
Spjald 12
Spurning
What is a factor of a number?
Svar
A whole number that divides the number with no remainder.
Spjald 13
Spurning
What do mitochondria do?
Svar
They release usable energy from food molecules and make much of the cell's ATP.
Spjald 14
Spurning
What eye protection is standard when chips, sparks, or flying debris are possible?
Svar
Properly rated safety glasses or goggles suited to the hazard.
Spjald 15
Spurning
What is a translation of a shape?
Svar
A slide that changes position without rotating or reflecting the shape.
Spjald 16
Spurning
What is a supporting detail?
Svar
A fact, example, reason, or explanation that develops the main idea.
Spjald 17
Spurning
What is a multiple of a number?
Svar
A result of multiplying that number by an integer.
Spjald 18
Spurning
What is the cell membrane's main job?
Svar
It controls what enters and leaves the cell.
Spjald 19
Spurning
When force acts along the direction of motion, what is mechanical work?
Svar
Force times displacement: $W=Fd$ .
Spjald 20
Spurning
What must be true of two boundaries that join exactly?
Svar
Their lengths and contours must match while facing in complementary directions.
Spjald 21
Spurning
What does concise mean?
Svar
Brief but clear; using no unnecessary words.
Spjald 22
Spurning
How do you convert a fraction to a decimal?
Svar
Divide the numerator by the denominator.
Spjald 23
Spurning
What is photosynthesis?
Svar
The process by which plants, algae, and some microbes use light energy to make sugars from carbon dioxide and water.
Spjald 24
Spurning
What is the SI unit of electric current?
Svar
The ampere, or amp.
Spjald 25
Spurning
How should a tab-and-slot pair behave in a valid assembly?
Svar
The tab should fit the slot without leaving a gap or creating overlap.
Spjald 26
Spurning
What does the suffix -less mean?
Svar
Without, as in careless.
Spjald 27
Spurning
How do you convert a decimal to a percent?
Svar
Multiply by 100 and add the percent sign.
Spjald 28
Spurning
What is cellular respiration?
Svar
A process that releases energy from food molecules, commonly using oxygen and producing carbon dioxide and water.
Spjald 29
Spurning
What does a piston do in a reciprocating engine?
Svar
Moves back and forth in the cylinder and transfers combustion force to the connecting rod.
Spjald 30
Spurning
Which edges determine an assembled object's outer silhouette?
Svar
Only edges that remain exposed after the pieces join.
Spjald 31
Spurning
What is an inference in reading?
Svar
A conclusion supported by passage evidence even when it is not stated directly.
Spjald 32
Spurning
How do you convert a percent to a decimal?
Svar
Divide by 100, or move the decimal point two places left.
Spjald 33
Spurning
What is DNA?
Svar
The molecule that stores hereditary information in living organisms.
Spjald 34
Spurning
What fastener is a Phillips screwdriver designed to turn?
Svar
A screw with a cross-shaped recess.
Spjald 35
Spurning
What usually happens to two edges joined along a shared boundary?
Svar
They become internal to the assembly rather than part of the outside outline.
Spjald 36
Spurning
What does diligent mean?
Svar
Careful and persistent in one's work.
Spjald 37
Spurning
What is the reciprocal of a nonzero number?
Svar
The number that gives 1 when multiplied by the original number; for $a/b$ , it is $b/a$ .
Spjald 38
Spurning
What is a gene?
Svar
A segment of DNA that contributes to a functional product or inherited trait.
Spjald 39
Spurning
What is mechanical power?
Svar
The rate of doing work: $P=W/t$ .
Spjald 40
Spurning
Why does overlap eliminate a proposed piece arrangement?
Svar
Solid pieces cannot occupy the same area in a valid assembly.
Spjald 41
Spurning
What does the root bio mean?
Svar
Life, as in biology.
Spjald 42
Spurning
What makes two fractions equivalent?
Svar
They represent the same value because the numerator and denominator were multiplied or divided by the same nonzero number.
Spjald 43
Spurning
What is an allele?
Svar
One version of a gene.
Spjald 44
Spurning
What is voltage?
Svar
Electric potential difference: energy transferred per unit charge.
Spjald 45
Spurning
What scale rule applies when comparing pieces meant to join?
Svar
They must be compared at the same scale; rotation does not resize a piece.
Spjald 46
Spurning
What is an author's purpose?
Svar
The main reason for writing, such as to inform, explain, persuade, or entertain.
Spjald 47
Spurning
What does a ratio compare?
Svar
Two quantities by division.
Spjald 48
Spurning
What is the main job of red blood cells?
Svar
Carry oxygen, mainly through hemoglobin.
Spjald 49
Spurning
What does a crankshaft do in a piston engine?
Svar
Converts the pistons' back-and-forth motion into rotation.
Spjald 50
Spurning
What is a useful anchor for mental assembly?
Svar
A distinctive corner, notch, tab, or long edge that can be tracked across rotations.
Spjald 51
Spurning
What does obsolete mean?
Svar
No longer used because something newer has replaced it.
Spjald 52
Spurning
What is a proportion?
Svar
An equation stating that two ratios are equal.
Spjald 53
Spurning
What is the main job of white blood cells?
Svar
Help defend the body against infection and other threats.
Spjald 54
Spurning
What fastener is a slotted screwdriver designed to turn?
Svar
A screw with one straight slot.
Spjald 55
Spurning
What should you track while mentally rotating a complex piece?
Svar
One distinctive landmark and its relationship to nearby edges.
Spjald 56
Spurning
What does the prefix anti- mean?
Svar
Against or opposed to, as in antifreeze.
Spjald 57
Spurning
How do you find the arithmetic mean?
Svar
Add all values and divide by the number of values.
Spjald 58
Spurning
What does a neuron do?
Svar
Receives and transmits information through electrical and chemical signals.
Spjald 59
Spurning
How is ideal mechanical advantage defined?
Svar
Ideal mechanical advantage is input distance divided by output distance. In a frictionless ideal machine, it also equals output force divided by input force.
Spjald 60
Spurning
How can symmetry help with a spatial-relation problem?
Svar
It reveals repeated or mirrored positions. Reflection reverses handedness, so a candidate must match the target's handedness.
Spjald 61
Spurning
How does a definition context clue help with an unfamiliar word?
Svar
The sentence directly explains the word's meaning nearby.
Spjald 62
Spurning
What is the median?
Svar
The middle value after the data are ordered, or the mean of the two middle values when the count is even.
Spjald 63
Spurning
What is homeostasis?
Svar
The maintenance of relatively stable internal conditions despite outside change.
Spjald 64
Spurning
What is the SI unit of voltage?
Svar
The volt.
Spjald 65
Spurning
Does viewing an object from another angle change the object itself?
Svar
No. The visible faces and edges change, but the object's dimensions and connections do not.
Spjald 66
Spurning
What does reluctant mean?
Svar
Unwilling or hesitant.
Spjald 67
Spurning
Why use a least common denominator when adding fractions?
Svar
It gives the fractions a shared unit size so their numerators can be combined.
Spjald 68
Spurning
What is an ecosystem?
Svar
A community of organisms interacting with each other and with their physical environment.
Spjald 69
Spurning
What does a camshaft control in a four-stroke engine?
Svar
The timing of intake and exhaust valve opening and closing.
Spjald 70
Spurning
How can a hidden edge be inferred in a simple assembly?
Svar
Continue the visible boundary consistently unless another piece blocks or joins it.
Spjald 71
Spurning
What does the root geo mean?
Svar
Earth, as in geology.
Spjald 72
Spurning
What is absolute value?
Svar
A number's distance from zero, so it is never negative.
Spjald 73
Spurning
What is natural selection?
Svar
Individuals with heritable traits suited to an environment tend to leave more offspring, so those traits become more common.
Spjald 74
Spurning
What is an open-end wrench mainly used for?
Svar
Turning nuts and bolt heads that can be reached from the side.
Spjald 75
Spurning
What quick checks can eliminate an impossible assembly?
Svar
Mismatched edge lengths, wrong corner counts, overlap, gaps, or an outer outline that cannot be formed.
Spjald 76
Spurning
What do contrast signals such as however or although tell a reader?
Svar
The next idea differs from or qualifies the previous idea.
Spjald 77
Spurning
What is a variable?
Svar
A symbol that represents an unknown or changeable value.
Spjald 78
Spurning
What is an atom?
Svar
The smallest unit of an element that retains that element's chemical identity.
Spjald 79
Spurning
What is a fulcrum?
Svar
The pivot point of a lever.
Spjald 80
Spurning
What does impartial mean?
Svar
Fair and not favoring one side.
Spjald 81
Spurning
What is a coefficient?
Svar
A number that multiplies a variable.
Spjald 82
Spurning
What is an element?
Svar
A pure substance made of atoms with the same number of protons.
Spjald 83
Spurning
What is electrical resistance?
Svar
Opposition to electric current.
Spjald 84
Spurning
What does the suffix -ology mean?
Svar
The study of, as in geology.
Spjald 85
Spurning
What is the distributive property?
Svar
Multiply the outside factor by every term inside: $a(b+c)=ab+ac$ .
Spjald 86
Spurning
What is a compound?
Svar
A substance made of two or more elements chemically bonded in fixed proportions.
Spjald 87
Spurning
What does a spark plug do in a gasoline engine?
Svar
Creates the spark that ignites the compressed air-fuel mixture.
Spjald 88
Spurning
What do cause-and-effect signals help a reader identify?
Svar
Why something happened and what resulted from it.
Spjald 89
Spurning
When can algebraic terms be combined?
Svar
When they are like terms with the same variable parts and exponents.
Spjald 90
Spurning
What defines a physical change?
Svar
The material changes form or state without becoming a different substance.
Spjald 91
Spurning
What is the main advantage of a socket wrench?
Svar
Its socket surrounds the fastener head, giving secure contact and efficient repeated turning.
Spjald 92
Spurning
What does feasible mean?
Svar
Possible and practical to do.
Spjald 93
Spurning
For a positive whole-number exponent, what does the exponent tell you?
Svar
How many times the base is used as a factor.
Spjald 94
Spurning
What defines a chemical change?
Svar
One or more substances become new substances with different chemical compositions.
Spjald 95
Spurning
Where is the fulcrum in a first-class lever?
Svar
Between the effort and the load.
Spjald 96
Spurning
What does the prefix inter- mean?
Svar
Between or among, as in interstate.
Spjald 97
Spurning
What is the product-of-powers rule for the same base?
Svar
Add the exponents: $a^m a^n=a^{m+n}$ .
Spjald 98
Spurning
What does conservation of mass mean in an ordinary chemical reaction?
Svar
Atoms are rearranged, but total mass stays constant in a closed system.
Spjald 99
Spurning
What is the SI unit of electrical resistance?
Svar
The ohm.
Spjald 100
Spurning
What is a pronoun's referent?
Svar
The noun or noun phrase that the pronoun stands for.
Spjald 101
Spurning
What does a negative exponent mean?
Svar
For nonzero $a$ , $a^{-n}=1/a^n$ .
Spjald 102
Spurning
What is density?
Svar
Mass per unit volume: $\rho=m/V$ .
Spjald 103
Spurning
What does a fuel injector do?
Svar
Meters and sprays fuel into the engine's air path or combustion chamber.
Spjald 104
Spurning
What does ambiguous mean?
Svar
Open to more than one interpretation; unclear.
Spjald 105
Spurning
What is a square root of a number?
Svar
A value that produces the number when multiplied by itself.
Spjald 106
Spurning
What relationship does Newton's second law express?
Svar
Net force equals mass times acceleration: $F=ma$ .
Spjald 107
Spurning
What is an adjustable wrench used for?
Svar
Turning different sizes of nuts or bolt heads with one movable jaw.
Spjald 108
Spurning
What does the root cred mean?
Svar
Believe or trust, as in credible.
Spjald 109
Spurning
What is the core rule for solving a linear equation?
Svar
Use inverse operations while performing the same operation on both sides.
Spjald 110
Spurning
How does velocity differ from speed?
Svar
Velocity includes direction; speed does not.
220 spjöld
ASVAB Flashcards: Verbal, Math, Science & Technical Review
Læra þennan stokk ókeypis
Nibomo opnast svo þú getir byrjað að læra.
Spjald 111
Spurning
Where is the load in a second-class lever?
Svar
Between the fulcrum and the effort.
Spjald 112
Spurning
How does a fact differ from an opinion?
Svar
A fact can be checked against evidence; an opinion expresses a judgment or belief.
Spjald 113
Spurning
What is the slope formula between two points?
Svar
$m=(y_2-y_1)/(x_2-x_1)$ , provided $x_2\ne x_1$ .
Spjald 114
Spurning
What is energy?
Svar
The capacity to do work or cause change.
Spjald 115
Spurning
What relationship does Ohm's law express?
Svar
Voltage equals current times resistance: $V=IR$ .
Spjald 116
Spurning
What does meticulous mean?
Svar
Very careful about small details.
Spjald 117
Spurning
What does $y=mx+b$ show?
Svar
A line with slope $m$ and vertical intercept $b$ .
Spjald 118
Spurning
What is conduction?
Svar
Heat transfer through direct particle contact, especially within or between solids.
Spjald 119
Spurning
What does a vehicle radiator do?
Svar
Transfers heat from engine coolant to the surrounding air.
Spjald 120
Spurning
What does scarce mean?
Svar
Limited in supply; hard to find.
Spjald 121
Spurning
When must an inequality sign reverse?
Svar
When both sides are multiplied or divided by a negative number.
Spjald 122
Spurning
What is convection?
Svar
Heat transfer by the bulk motion of a fluid such as air or water.
Spjald 123
Spurning
What are general-purpose pliers mainly used for?
Svar
Gripping, holding, and bending objects.
Spjald 124
Spurning
What does a compare-and-contrast structure show?
Svar
How two or more subjects are alike and different.
Spjald 125
Spurning
What is a solution to a system of two equations?
Svar
A value pair that makes both equations true.
Spjald 126
Spurning
What is thermal radiation?
Svar
Energy transfer by electromagnetic waves; it does not require matter.
Spjald 127
Spurning
Where is the effort in a third-class lever?
Svar
Between the fulcrum and the load.
Spjald 128
Spurning
What does resilient mean?
Svar
Able to recover or adapt after difficulty.
Spjald 129
Spurning
How do you factor out a greatest common factor?
Svar
Divide every term by the common factor and place that factor outside parentheses.
Spjald 130
Spurning
What is Earth's crust?
Svar
The planet's thin, solid outermost layer.
Spjald 131
Spurning
What is electrical power in a DC circuit?
Svar
Voltage times current: $P=VI$ .
Spjald 132
Spurning
What does versatile mean?
Svar
Able to serve several purposes or adapt to different tasks.
Spjald 133
Spurning
What is the quadratic formula for $ax^2+bx+c=0$ ?
Svar
$x=(-b\pm\sqrt{b^2-4ac})/(2a)$ .
Spjald 134
Spurning
What is Earth's mantle?
Svar
The thick layer of hot rock between the crust and core; it flows slowly over long times.
Spjald 135
Spurning
What does an engine thermostat regulate?
Svar
Coolant flow based on temperature so the engine warms up and avoids overheating.
Spjald 136
Spurning
What do sequence signals such as first, next, and finally show?
Svar
The order in which steps or events occur.
Spjald 137
Spurning
What is the perimeter of a rectangle?
Svar
$P=2l+2w$ .
Spjald 138
Spurning
What is Earth's core?
Svar
The iron-rich central region, with a liquid outer core and solid inner core.
Spjald 139
Spurning
What is a ball-peen hammer mainly used for?
Svar
Shaping metal and striking punches or rivets.
Spjald 140
Spurning
What does sporadic mean?
Svar
Occurring irregularly or only from time to time.
Spjald 141
Spurning
What is the area of a rectangle?
Svar
$A=lw$ .
Spjald 142
Spurning
What does the rock cycle describe?
Svar
How igneous, sedimentary, and metamorphic rocks change from one type to another.
Spjald 143
Spurning
What does a fixed pulley change in the ideal case?
Svar
The direction of the effort; its ideal mechanical advantage is 1.
Spjald 144
Spurning
What does frugal mean?
Svar
Careful about spending or using resources.
Spjald 145
Spurning
What is the area of a triangle?
Svar
$A=bh/2$ .
Spjald 146
Spurning
How does weather differ from climate?
Svar
Weather is short-term atmospheric conditions; climate is the long-term pattern for a region.
Spjald 147
Spurning
What is an electrical conductor?
Svar
A material that allows electric charge to move relatively easily.
Spjald 148
Spurning
What is tone in a passage?
Svar
The author's attitude toward the subject or audience.
Spjald 149
Spurning
What is the circumference of a circle?
Svar
$C=2\pi r$ or $C=\pi d$ .
Spjald 150
Spurning
What is evaporation in the water cycle?
Svar
Liquid water changing into water vapor.
Spjald 151
Spurning
What does an alternator do while a vehicle's engine runs?
Svar
Supplies electrical power and recharges the battery.
Spjald 152
Spurning
What does novice mean?
Svar
A beginner.
Spjald 153
Spurning
What is the area of a circle?
Svar
$A=\pi r^2$ .
Spjald 154
Spurning
What is condensation in the water cycle?
Svar
Water vapor cooling into liquid droplets.
Spjald 155
Spurning
What is a hacksaw mainly used to cut?
Svar
Metal and some plastics, using a fine-toothed blade.
Spjald 156
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What does the prefix trans- mean?
Svar
Across, through, or beyond, as in transport.
Spjald 157
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What relationship does the Pythagorean theorem give for a right triangle?
Svar
$a^2+b^2=c^2$ , where $c$ is the hypotenuse.
Spjald 158
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What is precipitation?
Svar
Water falling from clouds as rain, snow, sleet, or hail.
Spjald 159
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What is the ideal mechanical advantage of one movable pulley supported by two rope segments?
Svar
2; the load is shared by two supporting rope segments.
Spjald 160
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What is a summary?
Svar
A brief statement of the main idea and the most important supporting points.
Spjald 161
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What is the sum of a triangle's interior angles?
Svar
$180^\circ$ .
Spjald 162
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What does plate tectonics explain?
Svar
The movement of Earth's lithospheric plates and many earthquakes, volcanoes, and mountain ranges.
Spjald 163
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What is an electrical insulator?
Svar
A material that strongly resists the movement of electric charge.
Spjald 164
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What does verify mean?
Svar
Confirm that something is true or accurate.
Spjald 165
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What are complementary angles?
Svar
Two angles whose measures add to $90^\circ$ .
Spjald 166
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What primarily causes Earth's seasons?
Svar
Earth's axial tilt as it orbits the Sun.
Spjald 167
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What is a vehicle battery's main starting role?
Svar
Provides electrical energy to the starter motor and ignition or control systems.
Spjald 168
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What does plausible mean?
Svar
Reasonable or believable.
Spjald 169
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What are supplementary angles?
Svar
Two angles whose measures add to $180^\circ$ .
Spjald 170
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What causes the Moon's phases?
Svar
Our view of the Moon's sunlit half changes as the Moon orbits Earth.
Spjald 171
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What does a hand file do?
Svar
Removes small amounts of material to shape, deburr, or smooth a surface.
Spjald 172
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What is a word's connotation?
Svar
The feeling or association a word suggests beyond its literal meaning.
Spjald 173
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What is the area of a parallelogram?
Svar
$A=bh$ , using the perpendicular height.
Spjald 174
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What keeps planets in orbit around the Sun?
Svar
Gravity supplies the inward force that bends their motion into an orbit.
Spjald 175
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How do the speeds of two meshed gears compare?
Svar
The smaller gear turns faster; speed is inversely related to tooth count.
Spjald 176
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What does prudent mean?
Svar
Careful and sensible about future consequences.
Spjald 177
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What is the area of a trapezoid?
Svar
$A=(b_1+b_2)h/2$ .
Spjald 178
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How does current behave in a simple series circuit?
Svar
The same current passes through every component.
Spjald 179
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What does the prefix mis- mean?
Svar
Wrongly or badly, as in misjudge.
Spjald 180
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What is the volume of a rectangular prism?
Svar
$V=lwh$ .
Spjald 181
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What does a vehicle transmission do?
Svar
Changes the speed-and-torque relationship between the engine and the drive wheels.
Spjald 182
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What is a paraphrase?
Svar
A restatement of the same idea in different words without changing its meaning.
Spjald 183
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What is the volume of a cylinder?
Svar
$V=\pi r^2h$ .
Spjald 184
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What does a drill bit do?
Svar
Cuts a hole as it rotates; the bit type must match the material.
Spjald 185
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What does tangible mean?
Svar
Able to be touched; more broadly, real and definite.
Spjald 186
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What is the surface area of a rectangular prism?
Svar
$SA=2lw+2lh+2wh$ .
Spjald 187
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Which directions do two directly meshed external gears rotate?
Svar
Opposite directions.
Spjald 188
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What does candid mean?
Svar
Honest and direct.
Spjald 189
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How do corresponding lengths compare in similar figures?
Svar
They share one scale factor; corresponding angles stay equal.
Spjald 190
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How does voltage behave across branches of an ideal parallel circuit?
Svar
Each branch has the same voltage as the source.
Spjald 191
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What equation links distance, rate, and time?
Svar
$d=rt$ .
Spjald 192
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What does a differential let driven wheels do?
Svar
Rotate at different speeds while still receiving torque.
Spjald 193
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What is the simple-interest formula?
Svar
$I=Prt$ , where $P$ is principal, $r$ is the decimal annual rate, and $t$ is time in years.
Spjald 194
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What does a bench vise do?
Svar
Holds a workpiece firmly while it is cut, filed, drilled, or assembled.
Spjald 195
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How do you find a unit rate?
Svar
Divide to express the quantity per one unit.
Spjald 196
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How does an inclined plane trade force for distance?
Svar
It reduces the required input force by increasing the distance over which the force acts.
Spjald 197
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How do you calculate signed percent change?
Svar
$\text{percent change}=(\text{new}-\text{original})/\text{original}\times100\%$ , when the original is nonzero. A positive result is an increase; a negative result is a decrease.
Spjald 198
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What is an open circuit?
Svar
A broken or incomplete path in which current cannot flow through the intended loop.
Spjald 199
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What two equations set up a two-part mixture problem?
Svar
Use both $a_1+a_2=A$ and $c_1a_1+c_2a_2=c_tA$ . The $a$ values are amounts in compatible units, and the $c$ values are decimal concentrations.
Spjald 200
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How does a disc brake slow a wheel?
Svar
A caliper presses pads against a rotating disc, creating friction.
Spjald 201
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How do combined work rates relate?
Svar
Add the individual rates: $1/T=1/t_1+1/t_2$ for two workers acting together.
Spjald 202
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What is pressure?
Svar
Force per unit area: $p=F/A$ .
Spjald 203
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For equally likely outcomes, how is probability found?
Svar
Favorable outcomes divided by total possible outcomes.
Spjald 204
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What is a closed circuit?
Svar
A complete conducting path that allows current to flow.
Spjald 205
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How does a scale drawing connect drawing length to actual length?
Svar
Corresponding lengths form an equal ratio using one consistent scale factor.
Spjald 206
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What are the main jobs of tire tread?
Svar
Provide grip and channel water away from the tire's contact area.
Spjald 207
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How can two consecutive integers be represented algebraically?
Svar
$n$ and $n+1$ .
Spjald 208
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What does Pascal's principle say?
Svar
A change in pressure applied to a confined fluid is transmitted undiminished throughout the fluid and to the container walls.
Spjald 209
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Why must you reverse the order in a phrase such as “5 less than $x$ ”?
Svar
“5 less than $x$ ” means $x-5$ , because the amount is subtracted from $x$ .
Spjald 210
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What is a short circuit?
Svar
An unintended low-resistance path that can produce dangerously high current.
Spjald 211
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What does engine oil do?
Svar
Lubricates moving parts, reduces friction and wear, and helps carry heat and contaminants away.
Spjald 212
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What does a capacitor store?
Svar
Electric charge and energy in an electric field.
Spjald 213
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What is the buoyant force on an immersed object equal to?
Svar
The weight of the fluid the object displaces.
Spjald 214
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What does a fuse do?
Svar
Melts and opens the circuit when current exceeds its rated limit.
Spjald 215
Spurning
What does friction do?
Svar
Opposes relative motion or the tendency of motion between contacting surfaces.
Spjald 216
Spurning
What does a resistor do in a circuit?
Svar
Limits current or creates a controlled voltage drop.
Spjald 217
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How does a lower center of gravity usually affect stability?
Svar
It makes an object less likely to tip.
Spjald 218
Spurning
What does a circuit breaker do?
Svar
Opens a circuit when current is excessive and can usually be reset after the fault is cleared.
Spjald 219
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What is torque?
Svar
The turning effect of a force: force times perpendicular lever arm.
Spjald 220
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What does a diode do?
Svar
Allows current mainly in one direction while blocking it in the reverse direction.

Blank flashcards surrounded by abstract geometry, science, electronics, and mechanics study objects on a dark desk.

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ASVAB Flashcards: Verbal, Math, Science & Technical Review

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ASVAB Flashcards: Verbal, Math, Science & Technical Review

What the cards practice

What needs separate practice

Learning order

Scope and provenance

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