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ASVAB Exam Questions
Page 9 of 40
161.
Line 1 passes through the point (-3, 2). Which of the following cannot be the equation of line l?
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y = 1 + x
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y = x + 5
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x = -3
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y = -1 - x
Correct answer: y = 1 + x
The slope-intercept form of a line is y = mx + b.
Since the line passes through (-3, 2), there are three possibilities.
- The line will have a slope (the “m” in front of the “x” variable)
- The line will be vertical (x = -3)
- The line will be horizontal (y = 2)
Plug x = -3 into all four equations to see which equation is not satisfied.
y = x + 5
y = -3 + 5 = 2, so this equation is correct.
y = -1 - x
y = -1 - (-3)
y = -1 + 3 = 2, so this equation is correct.
y = 1 + x
y = 1 + -3 = -2, so this is the only answer choice that doesn’t give us y = 2.
162.
Solve:
4 - 1/3 ÷ 1 - 5/6 =
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17/6
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4/3
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19/3
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7/6
Correct answer: 17/6
By using the order of operations, we know that we should divide before subtracting. Simplify 1/3 ÷ 1.
1/3 ÷ 1 = 1/3 × 1 = 1/3
Find the LCD (least common denominator) of 3 and 6. List out all multiples of each denominator, and find the first common one.
3: 3, 6
6: 6
Therefore, the LCD is 6.
Make the denominators the same as the LCD.
4 × 6/6 - (1 × 2)/(3 × 2) - 5/6
Simplify. Denominators are now the same.
24/6 - 2/6 - 5/6
Join the denominators.
(24 - 2 - 5)/6 = 17/6
163.
Into what compound, besides carbon dioxide, does an oxidation catalyst oxidize volatile organic compounds?
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Water
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Oxygen
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Nitrogen
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Hydrogen
Correct answer: Water
The catalytic converter is responsible for converting the toxic components of engine exhaust into relatively harmless compounds such as carbon dioxide and water. Carbon monoxide, volatile organic compounds, and nitrogen oxide are all dealt with through a three-way catalytic converter.
Oxygen, nitrogen, and hydrogen are not products of a catalytic converter.
164.
What are two types of mechanical energy?
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Kinetic and potential
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Kinetic and static
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Potential and static
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Potential and weight
Correct answer: Kinetic and potential
Two types of mechanical energy are kinetic and potential. Kinetic energy is the energy of movement, and potential energy is energy that has the potential to be converted to kinetic energy.
There is no such thing as static energy, though static friction refers to the force that opposes any attempted movement. Weight refers to the force exerted on an object due to gravity.
165.
Which of the following is equal to the square root of seventy-two?
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6√2
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36√2
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2√6
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12√6
Correct answer: 6√2
The square root of seventy-two can be written as √72. To solve this problem, try to find a factor of 70 that is a square number.
36 × 2 = 72 (36 is a square of 6, since 6 × 6 = 36)
Write 72 as a product of its factors, 36 and 2, and then take the square root of each factor.
√72 = √36 × 2 = √36 √2
The square root of 36 is 6, and the square root of 2 isn’t a whole number, so the answer is 6√2.
166.
A micrometer reading is revealed when what occurs?
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When the thimble moves outward
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When the sleeve moves upward
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When the anvil moves inward
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When the spindle moves downward
Correct answer: When the thimble moves outward
The micrometer is composed of a thimble attached to a spindle, a device that moves in and out to adjust the distance between it and the anvil on the end of the micrometer. As the thimble moves outward, it uncovers graduations on the sleeve that indicate the distance between the spindle and anvil.
The sleeve and anvil on the micrometer are stationary parts and do not move. The spindle only moves inward and outward, not downward.
167.
Read the passage and then answer the following question.
Which of the following inferences can be made from the passage?
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Health care systems are constantly changing
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Only physicians are affected by changes in health care
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Health care expenses will be reduced in the future
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Health care is the government’s main concern
Correct answer: Health care systems are constantly changing
Sentence 3 informs the reader that health care leaders have tried to make many adjustments to fix health care; therefore, you can determine that health care systems are constantly changing.
The article informs you that health care leaders, policy makers, patients, and physicians are all affected by changes in health care. In addition, Sentence 2 states that health care expenses are rising, not decreasing. The passage does not address what the relative priorities of the government are.
168.
Find the average:
85, 90, 96, 78, 76, 91
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86
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82
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75
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78
Correct answer: 86
To find the average, add all the numbers together and divide by the total number of items.
First, add all 6 numbers together.
85 + 90 + 96 + 78 + 76 + 91 = 516
Next, divide 516 by 6 (the number of items).
516 ÷ 6 = 86
169.
You need to roll a 200-pound barrel up a 15-foot ramp. The vertical rise of the ramp is 3 feet. How much force is required to roll the barrel up the ramp?
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40 pounds
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13 1/3 pounds
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71.7 pounds
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5 pounds
Correct answer: 40 pounds
In order to solve this problem, find the mechanical advantage of the inclined plane.
MA = Length of the Slope ÷ Vertical Rise
MA = 15 feet ÷ 3 feet = 5
Find the effort, or force, required to roll the barrel up the ramp.
MA = Load ÷ Effort (E)
5 = 200 ÷ E
5E = 200
E = 200 ÷ 5
E = 40 pounds
170.
Read the passage and then answer the following question.
Which of the following is not cited in the passage as a purpose of dolphin clicks?
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Communication
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Hunting
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Navigation
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Creation of a sonar map
Correct answer: Communication
The passage states that dolphin clicks do not appear to serve any communication purpose. This is based on scientific research which shows that whistling, not clicks, is the way dolphins communicate.
The author of the passage states that rather than using clicks to communicate, dolphins use them to create sonar maps. These maps help them navigate ocean waters and hunt for food.
171.
All of the following are examples of tertiary consumers except:
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Lizards
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Lions
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Sharks
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Wolves
Correct answer: Lizards
Tertiary consumers are animals that are capable of eating secondary consumers and are at the top of the food chain. Examples include lions, sharks, and wolves.
Lizards are secondary consumers, meaning they eat primary consumers (insects and small mammals). Lizards are also omnivores, meaning they eat producers (plants) as well as animals.
172.
Which of the following is not a gas that helps to compose the earth’s atmosphere?
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Helium
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Nitrogen
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Oxygen
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Argon
Correct answer: Helium
Helium is a colorless, odorless chemical element with extremely low boiling and melting points. It is not a gas that is found in the earth's atmosphere.
The earth’s atmosphere is composed of nitrogen, oxygen, argon, and carbon dioxide. The volume of nitrogen in the atmosphere is 78.084 percent. Oxygen is 20.9476 percent, argon is 0.934 percent, and carbon dioxide is 0.0314 percent.
173.
According to Ohm’s Law, which of the following is an expression for amperes?
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Volts ÷ Ohms
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Volts × Ohms
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Watts ÷ Volts
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Watts × Volts
Correct answer: Volts ÷ Ohms
Ohm’s Law states that the current through a conductor between two points is directly proportional to the potential difference across the two points.
This is expressed in the equation I = V/R, where I is the current in units of amperes, V is the potential difference across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.
174.
Elements that are conductors have what characteristic in common?
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They all have valence electrons that are free to move from one atom to another
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They all have valence shells that are exactly half full
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They have valence shells that are more than half full
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They have valence shells that are completely full
Correct answer: They all have valence electrons that are free to move from one atom to another
Conductors are elements that allow atoms to flow freely. In all conductors, there is at least one valence electron that is free to move from one atom to another because the valence shell has more empty spots than electrons.
The remaining answer options are incorrect. Semiconductors have valence shells that are exactly half full. Insulators have valence shells that are more than half full or are completely full.
175.
Which letter represents the coefficient of friction?
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μ
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Δ
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Ω
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Σ
Correct answer: μ
The coefficient of friction represents how much two materials resist sliding against each other. It is represented by the Greek letter μ.
Δ is the Greek letter that represents change, such as change in time. Ω is the Greek letter that represents ohms, or resistance. Σ is the Greek letter that represents the sum of two or more values.
176.
Ubiquitous most nearly means:
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Omnipresent
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Loving
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Hidden
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Religious
Correct answer: Omnipresent
Ubiquitous means present, found, or appearing everywhere. Omni- means all, so omnipresent means present everywhere and is, therefore, the best answer.
Ubiquitous does not mean loving, hidden, or religious, so these answers are incorrect.
177.
Which of the following statements is false with regard to the sense of hearing?
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Sound waves can only pass through liquids and gases
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Vibrating air is known as sound
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Vibrating air produces sound waves
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Sound waves stimulate nerve cells within the ear
Correct answer: Sound waves can only pass through liquids and gases
Sound can pass through solids, liquids, and gases as longitudinal waves. Transverse waves can travel through solids.
The other answer options are all true statements with regard to the sense of hearing. The sound waves create vibrations in a medium, and these vibrations travel away from the medium at the speed of sound by vibrating the air. Sound waves then stimulate nerve cells within the ear, which manifests in animals hearing sounds.
178.
How many spark plugs are required for a diesel engine?
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0
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4
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6
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8
Correct answer: 0
A diesel engine uses fuel injectors and diesel, which creates a fuel-air mixture that ignites when it is compressed. Therefore, a diesel engine does not require the use of spark plugs.
179.
Judy walked a total of 35 miles in a 5-day period. How many miles did Judy walk on average each day?
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7 miles
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4 miles
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8 miles
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3 miles
Correct answer: 7 miles
This problem can be solved by dividing 35 by 5.
1. Set up the long division.
2. Calculate 35 ÷ 5, which is 7.
3. Therefore, 35 ÷ 5 = 7.
180.
Read the passage and then answer the following question.
The passage is mainly about:
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Christie's literary success and an event in her personal life
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Christie's most famous characters
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Christie's unhappy marriage
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Christie's first novel
Correct answer: Christie's literary success and an event in her personal life
The author of this passage spends the first half of the passage describing Christie's contributions to literature and briefly outlines her work and success. The author then describes a mysterious event in Christie's personal life.
The author briefly mentions Hercule Poirot, one of Christie's most famous characters, but this is not what the passage is mainly about. The author also states that Christie was in an unhappy marriage, but again, this is not the main idea of the passage. The author only mentions Christie's first novel, The Mysterious Affair at Styles, once.