ASVAB General Science Practice Test

Which atmospheric layer is characterized by the presence of water vapor, suspended particles, and the occurrence of weather phenomena?

What is Newton's First Law of Motion also known as?

What distinguishes artificial selection from natural selection?

In an uncharged atom, what is the relationship between the atomic number and the number of electrons?

Which of the following describes a symbiotic relationship where one organism benefits, while the other is harmed?

Which layer of the atmosphere contains the ozone layer, which absorbs most of the Sun's ultraviolet radiation?

What does the term 'inertia' describe in the context of Newton's First Law of Motion?

What does the atomic number of an element uniquely identify?

Which of the following is an example of a symbiotic relationship where one organism benefits, and the other is neither harmed nor helped?

What is the term for the observable expression of an organism's genes?

Why does the Northern Hemisphere experience summer during June, July, and August?

According to the Big Bang theory, what was the state of all matter in the universe before the expansion?

Which trophic level in an ecological food chain is composed of organisms that obtain energy solely from primary producers?

Using the taxonomic mnemonic 'King Philip Came Over For Great Spaghetti,' which taxonomic rank comes directly after Class?

Which type of energy is defined as the energy an object possesses due to its motion?

According to Newton's Third Law of Motion, what happens when a person pushes forward on a boat?

What are prominences, as related to solar activity?

What is the change in direction of waves as they pass from one medium to another called?

What type of cells are produced as a result of meiosis?

If two objects with different masses are dropped from the same height, and air resistance is negligible, what can be said of their acceleration?

Which of the following statements best describes the concept of 'alleles'?

What triggers the development of solar flares on the Sun?

We can hear around corners due to

A bag contains 5 blue marbles, 4 red marbles, and 3 yellow marbles. What is the probability of selecting a red or a yellow marble?

What percentage is 10.47 of 87.25, rounded to the nearest whole number?

A phone call costs $2.00 for the first five minutes and $0.30 for each additional minute. What is the total cost of a 25-minute call?

On a map, 10 inches represents 100 feet. How many feet does 25 inches represent?

Five years ago, Amy was three times as old as Mike. If Mike is currently 10 years old, how old is Amy now?

If you buy three books that cost $2.65 each and pay with a $20 bill, how much change will you receive?

Mia earns $8.10 per hour. How many hours would Charlotte need to work at $10.80 per hour to earn the same amount Mia earns in 40 hours?

Aisha wants to paint the walls of her living room. To estimate the number of buckets she needs, which calculation is most relevant?

A room has two walls that measure 12 10 and two walls measuring 12 18. If one gallon of paint covers 100 square feet, how many gallons of paint are needed to paint the room?

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of randomly selecting a blue or green marble from the bag?

A store is having a 30% off sale on all items. If an item originally costs $25, what is the sale price of the item?

Two machines produce widgets. Machine A produces twice as many widgets as Machine B. If together they produce 21 widgets, how many widgets does Machine B produce?

A car travels 120 miles in 3 hours and then 180 miles in 4 hours. What is the average speed of the car for the entire journey?

A recipe calls for 2.5 gallons of milk. How many pints of milk are needed?

A train travels at a constant speed. It covers 400 kilometers in 8 hours. How far will it travel in 12 hours?

A store buys a batch of shirts for $10 each and sells them for $25 each. What is the percent markup?

If the value of a car depreciates by 20% each year, what will be the value of a $20,000 car after one year?

How many seconds are there in 5 days?

What does 'onerous' describe?

Which of the following best describes 'disparate' elements?

What does it mean to 'condone' a behavior?

Which characteristic is most closely associated with 'candor'?

What does it mean for something to be 'contrived'?

What does 'nominal' typically signify in comparison to the actual value?

Which of the following actions best describes something 'clandestine'?

Which sensory experience is most closely linked with something 'fetid'?

Which action best exemplifies the meaning of 'instigate'?

What legal consequence is most closely associated with the act of 'abrogating' a law?

Which scenario provides the best example of something considered 'legitimate'?

Which situation described represents 'camaraderie'?

Which situation illustrates the concept of an 'onerous' task?

Which set of items would be considered 'disparate'?

In which instance would one be said to 'condone' an action?

What behavior best exemplifies 'candor' in a professional setting?

Simplify the expression $(x^4)(x^2)(x)$.

Solve for $x$ in the equation $7(x - 2) = 3(x + 6) - 4$.

If $y = 5ab + b^2$, and $a = 2$ and $b = 3$, what is the value of $y$?

A rectangle is formed by placing three identical squares side by side. If each square has a side length of 7, what is the perimeter of the resulting rectangle?

36 is 0.9% of what number?

Evaluate the expression: $30 - 4(2 + 3) ÷ 2 + 1$

Which of the following values is the smallest?

Two sides of a square have lengths defined by the expressions $3x + 8$ and $5x - 2$. What is the length of a side of the square?

What is the value of $w$ if $5w + 6 = 9w - 10$?

What is the median of the following data set: {3, 5, 1, 9, 2, 12, 15, 7}?

What is the simplified form of the expression $9y^2 - 4xy + 5 - 3y^2 + 4xy - 2$?

The expression $6.3 \times 10^{-5}$ is equivalent to which decimal?

What is the measure of an angle that is vertical to an angle measuring 72 degrees?

What is the value of 5!

What is the value of $(-4)^3$?

Factor the following expression: $5x(2y + 3) - 4(2y + 3)$

Given a triangle with two angles measuring 40 degrees and 70 degrees, what is the measure of the third angle?

What is $\sqrt{81 + 144}$ equal to?

What is the voltage across a resistor with a current of $10A$ flowing through it, if the resistance is $6 \Omega$?

What property does the 'Ohm' measure?

A resistor has the following color bands: Red, Red, Orange. According to the resistor color code, what is the resistance value of this resistor?

In an electrical circuit, what happens when a normally closed button is pushed?

What unit is used to measure the flow rate of electrical charge?

What quantity is represented by the letter 'I' in electrical circuit diagrams and calculations?

In a basic circuit model, which component typically acts as the 'load'?

If a circuit has a current of 5 amps, what is the equivalent current in milliamps?

In a series-parallel circuit, how are the loads R2 and R3 wired if they are described as being 'in parallel'?

What instrument is commonly used to directly measure electrical resistance?

Which of the following is the broader category that includes both potentiometers and rheostats?

What is the primary function of a transducer?

In what units are radio frequencies typically measured?

Which component is a part of the drive train system?

What is the correct order of strokes in a four-stroke engine?

What is the function of the fuel pressure regulator?

What process do fuel injectors use to prepare fuel for combustion?

In the exhaust system, what is the primary function of the catalytic converter?

What is the primary purpose of a differential in a car's drivetrain?

How do disc brakes function to slow a vehicle?

In a car tire, what is the function of the 'bead'?

For tasks requiring access to confined spaces with minimal clearance, which tool would be most suitable?

Which type of wrench is characterized by its enclosed ends, offering a secure grip and reduced risk of slippage?

What is the primary function of a center punch prior to drilling?

Which materials are hacksaws specifically designed to cut?

What is a key limitation of a hole cutter bit (hole saw)?

For what applications is a ball peen hammer commonly used?

Which of the following tools is designed to smooth surfaces by removing small amounts of material, but has a coarser surface than a standard file?

Which tool is utilized to bond electrical components together using a molten alloy?

Pascal's Law, fundamental to hydraulics, is directly based on which principle?

How does increasing the length of a wedge, relative to its height, affect the force required to move an object?

If a gear with 30 teeth drives a gear with 15 teeth, and the larger gear completes 4 revolutions, how many revolutions will the smaller gear complete?

A force of $150 N$ is applied to an object, causing it to move $75 m$ in the direction of the force. Calculate the work done.

To lift a 20 Kg weight using a double-pulley system, ideally, what amount of force is required, assuming no energy loss?

An object with a mass of $10 kg$ is lifted to a height of $5 m$. Determine its potential energy, assuming the acceleration due to gravity is approximately $9.8 m/s^2$.

Which of the following is the best example of a second-class lever in everyday applications?

In a mechanical system, if torque is increased, what is the general effect on speed, assuming power remains constant?

A rectangular tank has dimensions of $5 ft$ x $10 ft$ x $12 ft$. What is the approximate pressure (psi) at the bottom of the tank when it is filled with a substance weighing $60 lb/ft^3$?

In a gear system with four gears (A, B, C, and D) where A drives B, B drives C, and C drives D, if gear A rotates clockwise, what is the direction of rotation of gear D?

In a simple machine where the distance the effort force moves is equal to the distance the load is lifted, what can be generally concluded about the magnitude of the input force compared to the output force (ignoring friction)?

Why is gravity classified as a vector quantity?

Horsepower is a unit of power commonly used to rate engines. Approximately how many watts are equivalent to one horsepower?

Which of the following best describes the relationship between potential and kinetic energy as described by the law of conservation of energy?

Cell replication via mitosis results in which cellular outcome?

What distinguishes the characteristics of the troposphere from other atmospheric layers?

How can Newton's Second Law of Motion be applied to describe the relationship between force, mass, and acceleration?

Which statement best describes the relationship between elements and molecules?

Which of the following is the standard unit for measuring mass in the metric system?

At what altitude range are middle clouds, also known as alto clouds, typically found in the atmosphere?

Organisms that primarily feed on dead animals are ecologically classified as:

What is the primary digestive role of bile produced by the liver?

Marble, slate, and gneiss are examples of rocks primarily formed through which geological process?

Which of the following particles is considered electrically neutral and found within the nucleus of an atom?

The central nervous system is composed of which two principal components?

Which branch of the nervous system primarily governs conscious and voluntary movements of the skeletal muscles?

On a map with a scale of $rac{1}{4}$ inch equals 10 miles, what actual distance does a map distance of 20 inches represent?

If 9 books weigh 3 pounds, and each book has the same weight, how many books would weigh 25 pounds?

A caf charges a membership fee of $25, plus $0.30 for each of the first 50 visits and $0.15 for each visit after 50. What is the total cost for a customer who visits the caf 80 times?

If 9 bottles of juice are needed for 12 people, how many bottles of juice are needed for 8 people, assuming the proportion remains the same?

Steve bought 6 packages of pens in total. If 4 of these packages contained 7 pens each, and the rest contained 3 pens each, how many pens did Steve buy in total?

By what number must a decimal be multiplied to move it four places to the right?

If $x = 5$, what is the value of $3x + 5 - (3x - 7)$?

Which of the following numbers cannot be a factor of 90?

Lana has the same number of ribbons as Rachel. Lana has 3 times the number of ribbons as Charlotte. Rachel has 12 more ribbons than Charlotte. How many ribbons does Charlotte have?

A group of 7 numbers has an average between 20 and 30. Which of the following values could be the sum of these 7 numbers?

An antenna makes one full circle in 12 hours. How many full circles will it make in 6 days?

Solve for $y$: $y + 3y + 5y = -18$

If $ab = \frac{b}{4}$, what is the value of $a$?

Which term describes someone who uses an excessive amount of words?

Which of the following traits characterizes a vindictive individual?

Which of the following words is closest in meaning to 'cursory'?

Which word best describes something that is both very weak and insignificant?

What behavior is most indicative of someone described as 'juvenile'?

What quality would describe a reputation that is 'unblemished'?

Which of the following words is closest in meaning to 'poignant'?

Which of the following terms is most similar to 'boisterous'?

After distributing the negative sign and combining like terms, what is the simplified form of the expression $5x^2y^4 + 2x^4y^2 - (3x^4y^2 - 2x^2y^4)$?

If a rectangle is formed by arranging six identical squares, each with an area of 9, what is the perimeter of the resulting rectangle?

Triangle ABC is an isosceles right triangle with angle B as the right angle. Sides AB and BC are equal. Which of the following statements is NOT necessarily true?

Solve for $y$: $15y + 5 = 5y + 5$

For what value of $z$ will the equation $12z = z$ be true?

If a number is divisible by $x$, how can you find other multiples of $x$?

What is the volume of a rectangular prism with length $6$, width $2$, and height $8$?

A student has an average score of 6 after 2 tests. If they want to increase their average to 9 after taking a third test, what score do they need on the third test?

What is the result of expanding the expression $(5x + 3)(x + 1)$?

Solve the following equation for $x$: $5(x - 2) = 20$

What does the mode represent in a set of data?

Which statement best describes the meaning of slope-intercept form?

Simplify: $(x^5) / (x^{-4})$

During which process does water move from a region of lower solute concentration to a region of higher solute concentration through a semipermeable membrane?

What is the primary function of ribosomes within a cell?

Which of the following best describes the process of convection?

If a neutral atom gains an electron, what type of particle does it become?

What is the term for the measure of disorder or randomness in a system?

Which word is the closest synonym for 'ostentatious'?

What is the nearest synonym for the term 'ubiquitous'?

Choose the best synonym for the word 'ephemeral'.

Which of the following words is most similar in meaning to 'laconic'?

Select the best synonym for 'indolent'.

A triangular garden has a base of 16 feet and a height of 10 feet. If fertilizer costs $2.50 per square foot, what would be the total cost to fertilize the entire garden?

A cyclist travels the first 20 miles of a journey at 10 miles per hour and the next 30 miles at 15 miles per hour. What is the cyclist's average speed for the entire journey?

Sarah invests $5,000 in an account that earns 6% simple interest per year. How much interest will she have earned after 4 years?

A store marks up the price of an item by 25%. If the item originally costs the store $40, what is the selling price?

A painter can paint a room in 3 hours, and another painter can paint the same room in 5 hours. How long will it take them to paint the room together?

What is the primary issue with spark plugs in cars frequently driven in city conditions, as described?

If a car is mainly used for city driving and spark plug tips are not getting hot enough to burn off carbon, which of the following adjustments is suggested in the provided context?

What problem related to spark plug temperature is indicated when a car is predominantly driven in city environments?

In the context of spark plug maintenance for city driving, what is implied about the relationship between spark plug tip temperature and carbon buildup?

Considering the issue of carbon buildup on spark plugs in city driving, which modification to the spark plug design is suggested as a potential solution?

In a hydraulic system, if the area of the output piston is twice the area of the input piston, what will be the relationship between the force exerted by the output piston compared to the input force, assuming ideal conditions?

Two gears are meshed together. Gear A has 20 teeth and Gear B has 40 teeth. If Gear A is rotating at 60 RPM, at what rate will Gear B be rotating?

A block of wood is floating in water. If a denser object, such as a stone, is placed on top of the wooden block without submerging the block, what will happen to the water level in the container?

Consider a simple pendulum swinging back and forth. At which point in its swing is the pendulum's kinetic energy at its maximum?

Two identical springs are arranged in parallel and support a weight. How does the effective spring constant of this parallel arrangement compare to the spring constant of a single spring?

A gear rotates 350 times per minute. How many rotations will it complete in 2.5 hours, maintaining the same rate?

In a city, 2 out of every 7 people prefer Brand X. If 4,081 people were surveyed, how many people would be expected to prefer Brand X?

A hose dispenses 36 gallons of water in 9 seconds. At this rate, how many gallons of water will it dispense in 21 seconds?

Tickets to a concert cost $18.50 each. How much would it cost to buy 12 tickets?

An office is 54 feet wide by 78 feet deep. How many square feet of carpet are needed to cover the entire office?

According to the passage, what is the primary benefit of orienting large expanses of glass in a house towards the south?

What can an artist do with titanium to make art?

In the passage describing the beach scene, what is being described as a 'deception'?

What does the author imply about East Texas?

According to the passage, what is the result of improperly orienting a large expanse of glass in a house?

Which of the following components is commonly used to store electrical energy in an electronic circuit?

Which of the following best describes the function of a transistor?

Ohm's Law describes the relationship between voltage ($V$), current ($I$), and resistance ($R$) in a circuit. Which of the following equations correctly represents Ohm's Law?

What is the primary purpose of a diode in an electronic circuit?

An inductor primarily opposes which of the following in an electrical circuit?

Technician 'A' states a specific wrench is designed to grip multiple sides of a fastener. Technician 'B' says the same wrench is designed to apply higher torque. Which technician is most likely correct?

When drilling a pilot hole, which factor is most critical in preventing damage or inaccuracies?

Why is it important to correctly bleed air from a hydraulic system?

What is the primary function of a tap in machining?

Which safety practice is most effective in reducing the risk of fire when using flammable solvents?