ASVAB Flashcards: Verbal, Math, Science & Technical Review

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1. Κάρτα 1

   Ερώτηση

   What is a passage's main idea?

   Απάντηση

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

2. Κάρτα 2

   Ερώτηση

   What is the standard order of operations?

   Απάντηση

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

3. Κάρτα 3

   Ερώτηση

   What is the basic structural and functional unit of life?

   Απάντηση

   The cell.

4. Κάρτα 4

   Ερώτηση

   What is electric current?

   Απάντηση

   The rate at which electric charge flows.

5. Κάρτα 5

   Ερώτηση

   What properties stay unchanged when a shape is rotated?

   Απάντηση

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

6. Κάρτα 6

   Ερώτηση

   What does abundant mean?

   Απάντηση

   Plentiful; present in large amounts.

7. Κάρτα 7

   Ερώτηση

   What is a prime number?

   Απάντηση

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

8. Κάρτα 8

   Ερώτηση

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

   Απάντηση

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

9. Κάρτα 9

   Ερώτηση

   What does an internal-combustion engine do?

   Απάντηση

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

10. Κάρτα 10

    Ερώτηση

    How does a reflection affect a shape's orientation?

    Απάντηση

    It reverses handedness, producing a mirror image.

11. Κάρτα 11

    Ερώτηση

    What does the prefix pre- mean?

    Απάντηση

    Before, as in preview.

12. Κάρτα 12

    Ερώτηση

    What is a factor of a number?

    Απάντηση

    A whole number that divides the number with no remainder.

13. Κάρτα 13

    Ερώτηση

    What do mitochondria do?

    Απάντηση

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

14. Κάρτα 14

    Ερώτηση

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

    Απάντηση

    Properly rated safety glasses or goggles suited to the hazard.

15. Κάρτα 15

    Ερώτηση

    What is a translation of a shape?

    Απάντηση

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

16. Κάρτα 16

    Ερώτηση

    What is a supporting detail?

    Απάντηση

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

17. Κάρτα 17

    Ερώτηση

    What is a multiple of a number?

    Απάντηση

    A result of multiplying that number by an integer.

18. Κάρτα 18

    Ερώτηση

    What is the cell membrane's main job?

    Απάντηση

    It controls what enters and leaves the cell.

19. Κάρτα 19

    Ερώτηση

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

    Απάντηση

    Force times displacement: $W=Fd$.

20. Κάρτα 20

    Ερώτηση

    What must be true of two boundaries that join exactly?

    Απάντηση

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

21. Κάρτα 21

    Ερώτηση

    What does concise mean?

    Απάντηση

    Brief but clear; using no unnecessary words.

22. Κάρτα 22

    Ερώτηση

    How do you convert a fraction to a decimal?

    Απάντηση

    Divide the numerator by the denominator.

23. Κάρτα 23

    Ερώτηση

    What is photosynthesis?

    Απάντηση

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

24. Κάρτα 24

    Ερώτηση

    What is the SI unit of electric current?

    Απάντηση

    The ampere, or amp.

25. Κάρτα 25

    Ερώτηση

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

    Απάντηση

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

26. Κάρτα 26

    Ερώτηση

    What does the suffix -less mean?

    Απάντηση

    Without, as in careless.

27. Κάρτα 27

    Ερώτηση

    How do you convert a decimal to a percent?

    Απάντηση

    Multiply by 100 and add the percent sign.

28. Κάρτα 28

    Ερώτηση

    What is cellular respiration?

    Απάντηση

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

29. Κάρτα 29

    Ερώτηση

    What does a piston do in a reciprocating engine?

    Απάντηση

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

30. Κάρτα 30

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    Which edges determine an assembled object's outer silhouette?

    Απάντηση

    Only edges that remain exposed after the pieces join.

31. Κάρτα 31

    Ερώτηση

    What is an inference in reading?

    Απάντηση

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

32. Κάρτα 32

    Ερώτηση

    How do you convert a percent to a decimal?

    Απάντηση

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

33. Κάρτα 33

    Ερώτηση

    What is DNA?

    Απάντηση

    The molecule that stores hereditary information in living organisms.

34. Κάρτα 34

    Ερώτηση

    What fastener is a Phillips screwdriver designed to turn?

    Απάντηση

    A screw with a cross-shaped recess.

35. Κάρτα 35

    Ερώτηση

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

    Απάντηση

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

36. Κάρτα 36

    Ερώτηση

    What does diligent mean?

    Απάντηση

    Careful and persistent in one's work.

37. Κάρτα 37

    Ερώτηση

    What is the reciprocal of a nonzero number?

    Απάντηση

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

38. Κάρτα 38

    Ερώτηση

    What is a gene?

    Απάντηση

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

39. Κάρτα 39

    Ερώτηση

    What is mechanical power?

    Απάντηση

    The rate of doing work: $P=W/t$.

40. Κάρτα 40

    Ερώτηση

    Why does overlap eliminate a proposed piece arrangement?

    Απάντηση

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

41. Κάρτα 41

    Ερώτηση

    What does the root bio mean?

    Απάντηση

    Life, as in biology.

42. Κάρτα 42

    Ερώτηση

    What makes two fractions equivalent?

    Απάντηση

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

43. Κάρτα 43

    Ερώτηση

    What is an allele?

    Απάντηση

    One version of a gene.

44. Κάρτα 44

    Ερώτηση

    What is voltage?

    Απάντηση

    Electric potential difference: energy transferred per unit charge.

45. Κάρτα 45

    Ερώτηση

    What scale rule applies when comparing pieces meant to join?

    Απάντηση

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

46. Κάρτα 46

    Ερώτηση

    What is an author's purpose?

    Απάντηση

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

47. Κάρτα 47

    Ερώτηση

    What does a ratio compare?

    Απάντηση

    Two quantities by division.

48. Κάρτα 48

    Ερώτηση

    What is the main job of red blood cells?

    Απάντηση

    Carry oxygen, mainly through hemoglobin.

49. Κάρτα 49

    Ερώτηση

    What does a crankshaft do in a piston engine?

    Απάντηση

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

50. Κάρτα 50

    Ερώτηση

    What is a useful anchor for mental assembly?

    Απάντηση

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

51. Κάρτα 51

    Ερώτηση

    What does obsolete mean?

    Απάντηση

    No longer used because something newer has replaced it.

52. Κάρτα 52

    Ερώτηση

    What is a proportion?

    Απάντηση

    An equation stating that two ratios are equal.

53. Κάρτα 53

    Ερώτηση

    What is the main job of white blood cells?

    Απάντηση

    Help defend the body against infection and other threats.

54. Κάρτα 54

    Ερώτηση

    What fastener is a slotted screwdriver designed to turn?

    Απάντηση

    A screw with one straight slot.

55. Κάρτα 55

    Ερώτηση

    What should you track while mentally rotating a complex piece?

    Απάντηση

    One distinctive landmark and its relationship to nearby edges.

56. Κάρτα 56

    Ερώτηση

    What does the prefix anti- mean?

    Απάντηση

    Against or opposed to, as in antifreeze.

57. Κάρτα 57

    Ερώτηση

    How do you find the arithmetic mean?

    Απάντηση

    Add all values and divide by the number of values.

58. Κάρτα 58

    Ερώτηση

    What does a neuron do?

    Απάντηση

    Receives and transmits information through electrical and chemical signals.

59. Κάρτα 59

    Ερώτηση

    How is ideal mechanical advantage defined?

    Απάντηση

    Ideal mechanical advantage is input distance divided by output distance. In a frictionless ideal machine, it also equals output force divided by input force.

60. Κάρτα 60

    Ερώτηση

    How can symmetry help with a spatial-relation problem?

    Απάντηση

    It reveals repeated or mirrored positions. Reflection reverses handedness, so a candidate must match the target's handedness.

61. Κάρτα 61

    Ερώτηση

    How does a definition context clue help with an unfamiliar word?

    Απάντηση

    The sentence directly explains the word's meaning nearby.

62. Κάρτα 62

    Ερώτηση

    What is the median?

    Απάντηση

    The middle value after the data are ordered, or the mean of the two middle values when the count is even.

63. Κάρτα 63

    Ερώτηση

    What is homeostasis?

    Απάντηση

    The maintenance of relatively stable internal conditions despite outside change.

64. Κάρτα 64

    Ερώτηση

    What is the SI unit of voltage?

    Απάντηση

    The volt.

65. Κάρτα 65

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    Does viewing an object from another angle change the object itself?

    Απάντηση

    No. The visible faces and edges change, but the object's dimensions and connections do not.

66. Κάρτα 66

    Ερώτηση

    What does reluctant mean?

    Απάντηση

    Unwilling or hesitant.

67. Κάρτα 67

    Ερώτηση

    Why use a least common denominator when adding fractions?

    Απάντηση

    It gives the fractions a shared unit size so their numerators can be combined.

68. Κάρτα 68

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    What is an ecosystem?

    Απάντηση

    A community of organisms interacting with each other and with their physical environment.

69. Κάρτα 69

    Ερώτηση

    What does a camshaft control in a four-stroke engine?

    Απάντηση

    The timing of intake and exhaust valve opening and closing.

70. Κάρτα 70

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    How can a hidden edge be inferred in a simple assembly?

    Απάντηση

    Continue the visible boundary consistently unless another piece blocks or joins it.

71. Κάρτα 71

    Ερώτηση

    What does the root geo mean?

    Απάντηση

    Earth, as in geology.

72. Κάρτα 72

    Ερώτηση

    What is absolute value?

    Απάντηση

    A number's distance from zero, so it is never negative.

73. Κάρτα 73

    Ερώτηση

    What is natural selection?

    Απάντηση

    Individuals with heritable traits suited to an environment tend to leave more offspring, so those traits become more common.

74. Κάρτα 74

    Ερώτηση

    What is an open-end wrench mainly used for?

    Απάντηση

    Turning nuts and bolt heads that can be reached from the side.

75. Κάρτα 75

    Ερώτηση

    What quick checks can eliminate an impossible assembly?

    Απάντηση

    Mismatched edge lengths, wrong corner counts, overlap, gaps, or an outer outline that cannot be formed.

76. Κάρτα 76

    Ερώτηση

    What do contrast signals such as however or although tell a reader?

    Απάντηση

    The next idea differs from or qualifies the previous idea.

77. Κάρτα 77

    Ερώτηση

    What is a variable?

    Απάντηση

    A symbol that represents an unknown or changeable value.

78. Κάρτα 78

    Ερώτηση

    What is an atom?

    Απάντηση

    The smallest unit of an element that retains that element's chemical identity.

79. Κάρτα 79

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    What is a fulcrum?

    Απάντηση

    The pivot point of a lever.

80. Κάρτα 80

    Ερώτηση

    What does impartial mean?

    Απάντηση

    Fair and not favoring one side.

81. Κάρτα 81

    Ερώτηση

    What is a coefficient?

    Απάντηση

    A number that multiplies a variable.

82. Κάρτα 82

    Ερώτηση

    What is an element?

    Απάντηση

    A pure substance made of atoms with the same number of protons.

83. Κάρτα 83

    Ερώτηση

    What is electrical resistance?

    Απάντηση

    Opposition to electric current.

84. Κάρτα 84

    Ερώτηση

    What does the suffix -ology mean?

    Απάντηση

    The study of, as in geology.

85. Κάρτα 85

    Ερώτηση

    What is the distributive property?

    Απάντηση

    Multiply the outside factor by every term inside: $a(b+c)=ab+ac$.

86. Κάρτα 86

    Ερώτηση

    What is a compound?

    Απάντηση

    A substance made of two or more elements chemically bonded in fixed proportions.

87. Κάρτα 87

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    What does a spark plug do in a gasoline engine?

    Απάντηση

    Creates the spark that ignites the compressed air-fuel mixture.

88. Κάρτα 88

    Ερώτηση

    What do cause-and-effect signals help a reader identify?

    Απάντηση

    Why something happened and what resulted from it.

89. Κάρτα 89

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    When can algebraic terms be combined?

    Απάντηση

    When they are like terms with the same variable parts and exponents.

90. Κάρτα 90

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    What defines a physical change?

    Απάντηση

    The material changes form or state without becoming a different substance.

91. Κάρτα 91

    Ερώτηση

    What is the main advantage of a socket wrench?

    Απάντηση

    Its socket surrounds the fastener head, giving secure contact and efficient repeated turning.

92. Κάρτα 92

    Ερώτηση

    What does feasible mean?

    Απάντηση

    Possible and practical to do.

93. Κάρτα 93

    Ερώτηση

    For a positive whole-number exponent, what does the exponent tell you?

    Απάντηση

    How many times the base is used as a factor.

94. Κάρτα 94

    Ερώτηση

    What defines a chemical change?

    Απάντηση

    One or more substances become new substances with different chemical compositions.

95. Κάρτα 95

    Ερώτηση

    Where is the fulcrum in a first-class lever?

    Απάντηση

    Between the effort and the load.

96. Κάρτα 96

    Ερώτηση

    What does the prefix inter- mean?

    Απάντηση

    Between or among, as in interstate.

97. Κάρτα 97

    Ερώτηση

    What is the product-of-powers rule for the same base?

    Απάντηση

    Add the exponents: $a^m a^n=a^{m+n}$.

98. Κάρτα 98

    Ερώτηση

    What does conservation of mass mean in an ordinary chemical reaction?

    Απάντηση

    Atoms are rearranged, but total mass stays constant in a closed system.

99. Κάρτα 99

    Ερώτηση

    What is the SI unit of electrical resistance?

    Απάντηση

    The ohm.

100. Κάρτα 100

     Ερώτηση

     What is a pronoun's referent?

     Απάντηση

     The noun or noun phrase that the pronoun stands for.

101. Κάρτα 101

     Ερώτηση

     What does a negative exponent mean?

     Απάντηση

     For nonzero $a$, $a^{-n}=1/a^n$.

102. Κάρτα 102

     Ερώτηση

     What is density?

     Απάντηση

     Mass per unit volume: $\rho=m/V$.

103. Κάρτα 103

     Ερώτηση

     What does a fuel injector do?

     Απάντηση

     Meters and sprays fuel into the engine's air path or combustion chamber.

104. Κάρτα 104

     Ερώτηση

     What does ambiguous mean?

     Απάντηση

     Open to more than one interpretation; unclear.

105. Κάρτα 105

     Ερώτηση

     What is a square root of a number?

     Απάντηση

     A value that produces the number when multiplied by itself.

106. Κάρτα 106

     Ερώτηση

     What relationship does Newton's second law express?

     Απάντηση

     Net force equals mass times acceleration: $F=ma$.

107. Κάρτα 107

     Ερώτηση

     What is an adjustable wrench used for?

     Απάντηση

     Turning different sizes of nuts or bolt heads with one movable jaw.

108. Κάρτα 108

     Ερώτηση

     What does the root cred mean?

     Απάντηση

     Believe or trust, as in credible.

109. Κάρτα 109

     Ερώτηση

     What is the core rule for solving a linear equation?

     Απάντηση

     Use inverse operations while performing the same operation on both sides.

110. Κάρτα 110

     Ερώτηση

     How does velocity differ from speed?

     Απάντηση

     Velocity includes direction; speed does not.

     

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     ASVAB Flashcards: Verbal, Math, Science & Technical Review

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111. Κάρτα 111

     Ερώτηση

     Where is the load in a second-class lever?

     Απάντηση

     Between the fulcrum and the effort.

112. Κάρτα 112

     Ερώτηση

     How does a fact differ from an opinion?

     Απάντηση

     A fact can be checked against evidence; an opinion expresses a judgment or belief.

113. Κάρτα 113

     Ερώτηση

     What is the slope formula between two points?

     Απάντηση

     $m=(y_2-y_1)/(x_2-x_1)$, provided $x_2\ne x_1$.

114. Κάρτα 114

     Ερώτηση

     What is energy?

     Απάντηση

     The capacity to do work or cause change.

115. Κάρτα 115

     Ερώτηση

     What relationship does Ohm's law express?

     Απάντηση

     Voltage equals current times resistance: $V=IR$.

116. Κάρτα 116

     Ερώτηση

     What does meticulous mean?

     Απάντηση

     Very careful about small details.

117. Κάρτα 117

     Ερώτηση

     What does $y=mx+b$ show?

     Απάντηση

     A line with slope $m$ and vertical intercept $b$.

118. Κάρτα 118

     Ερώτηση

     What is conduction?

     Απάντηση

     Heat transfer through direct particle contact, especially within or between solids.

119. Κάρτα 119

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     What does a vehicle radiator do?

     Απάντηση

     Transfers heat from engine coolant to the surrounding air.

120. Κάρτα 120

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     What does scarce mean?

     Απάντηση

     Limited in supply; hard to find.

121. Κάρτα 121

     Ερώτηση

     When must an inequality sign reverse?

     Απάντηση

     When both sides are multiplied or divided by a negative number.

122. Κάρτα 122

     Ερώτηση

     What is convection?

     Απάντηση

     Heat transfer by the bulk motion of a fluid such as air or water.

123. Κάρτα 123

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     What are general-purpose pliers mainly used for?

     Απάντηση

     Gripping, holding, and bending objects.

124. Κάρτα 124

     Ερώτηση

     What does a compare-and-contrast structure show?

     Απάντηση

     How two or more subjects are alike and different.

125. Κάρτα 125

     Ερώτηση

     What is a solution to a system of two equations?

     Απάντηση

     A value pair that makes both equations true.

126. Κάρτα 126

     Ερώτηση

     What is thermal radiation?

     Απάντηση

     Energy transfer by electromagnetic waves; it does not require matter.

127. Κάρτα 127

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     Where is the effort in a third-class lever?

     Απάντηση

     Between the fulcrum and the load.

128. Κάρτα 128

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     What does resilient mean?

     Απάντηση

     Able to recover or adapt after difficulty.

129. Κάρτα 129

     Ερώτηση

     How do you factor out a greatest common factor?

     Απάντηση

     Divide every term by the common factor and place that factor outside parentheses.

130. Κάρτα 130

     Ερώτηση

     What is Earth's crust?

     Απάντηση

     The planet's thin, solid outermost layer.

131. Κάρτα 131

     Ερώτηση

     What is electrical power in a DC circuit?

     Απάντηση

     Voltage times current: $P=VI$.

132. Κάρτα 132

     Ερώτηση

     What does versatile mean?

     Απάντηση

     Able to serve several purposes or adapt to different tasks.

133. Κάρτα 133

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     What is the quadratic formula for $ax^2+bx+c=0$?

     Απάντηση

     $x=(-b\pm\sqrt{b^2-4ac})/(2a)$.

134. Κάρτα 134

     Ερώτηση

     What is Earth's mantle?

     Απάντηση

     The thick layer of hot rock between the crust and core; it flows slowly over long times.

135. Κάρτα 135

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     What does an engine thermostat regulate?

     Απάντηση

     Coolant flow based on temperature so the engine warms up and avoids overheating.

136. Κάρτα 136

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     What do sequence signals such as first, next, and finally show?

     Απάντηση

     The order in which steps or events occur.

137. Κάρτα 137

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     What is the perimeter of a rectangle?

     Απάντηση

     $P=2l+2w$.

138. Κάρτα 138

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     What is Earth's core?

     Απάντηση

     The iron-rich central region, with a liquid outer core and solid inner core.

139. Κάρτα 139

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     What is a ball-peen hammer mainly used for?

     Απάντηση

     Shaping metal and striking punches or rivets.

140. Κάρτα 140

     Ερώτηση

     What does sporadic mean?

     Απάντηση

     Occurring irregularly or only from time to time.

141. Κάρτα 141

     Ερώτηση

     What is the area of a rectangle?

     Απάντηση

     $A=lw$.

142. Κάρτα 142

     Ερώτηση

     What does the rock cycle describe?

     Απάντηση

     How igneous, sedimentary, and metamorphic rocks change from one type to another.

143. Κάρτα 143

     Ερώτηση

     What does a fixed pulley change in the ideal case?

     Απάντηση

     The direction of the effort; its ideal mechanical advantage is 1.

144. Κάρτα 144

     Ερώτηση

     What does frugal mean?

     Απάντηση

     Careful about spending or using resources.

145. Κάρτα 145

     Ερώτηση

     What is the area of a triangle?

     Απάντηση

     $A=bh/2$.

146. Κάρτα 146

     Ερώτηση

     How does weather differ from climate?

     Απάντηση

     Weather is short-term atmospheric conditions; climate is the long-term pattern for a region.

147. Κάρτα 147

     Ερώτηση

     What is an electrical conductor?

     Απάντηση

     A material that allows electric charge to move relatively easily.

148. Κάρτα 148

     Ερώτηση

     What is tone in a passage?

     Απάντηση

     The author's attitude toward the subject or audience.

149. Κάρτα 149

     Ερώτηση

     What is the circumference of a circle?

     Απάντηση

     $C=2\pi r$ or $C=\pi d$.

150. Κάρτα 150

     Ερώτηση

     What is evaporation in the water cycle?

     Απάντηση

     Liquid water changing into water vapor.

151. Κάρτα 151

     Ερώτηση

     What does an alternator do while a vehicle's engine runs?

     Απάντηση

     Supplies electrical power and recharges the battery.

152. Κάρτα 152

     Ερώτηση

     What does novice mean?

     Απάντηση

     A beginner.

153. Κάρτα 153

     Ερώτηση

     What is the area of a circle?

     Απάντηση

     $A=\pi r^2$.

154. Κάρτα 154

     Ερώτηση

     What is condensation in the water cycle?

     Απάντηση

     Water vapor cooling into liquid droplets.

155. Κάρτα 155

     Ερώτηση

     What is a hacksaw mainly used to cut?

     Απάντηση

     Metal and some plastics, using a fine-toothed blade.

156. Κάρτα 156

     Ερώτηση

     What does the prefix trans- mean?

     Απάντηση

     Across, through, or beyond, as in transport.

157. Κάρτα 157

     Ερώτηση

     What relationship does the Pythagorean theorem give for a right triangle?

     Απάντηση

     $a^2+b^2=c^2$, where $c$ is the hypotenuse.

158. Κάρτα 158

     Ερώτηση

     What is precipitation?

     Απάντηση

     Water falling from clouds as rain, snow, sleet, or hail.

159. Κάρτα 159

     Ερώτηση

     What is the ideal mechanical advantage of one movable pulley supported by two rope segments?

     Απάντηση

     2; the load is shared by two supporting rope segments.

160. Κάρτα 160

     Ερώτηση

     What is a summary?

     Απάντηση

     A brief statement of the main idea and the most important supporting points.

161. Κάρτα 161

     Ερώτηση

     What is the sum of a triangle's interior angles?

     Απάντηση

     $180^\circ$.

162. Κάρτα 162

     Ερώτηση

     What does plate tectonics explain?

     Απάντηση

     The movement of Earth's lithospheric plates and many earthquakes, volcanoes, and mountain ranges.

163. Κάρτα 163

     Ερώτηση

     What is an electrical insulator?

     Απάντηση

     A material that strongly resists the movement of electric charge.

164. Κάρτα 164

     Ερώτηση

     What does verify mean?

     Απάντηση

     Confirm that something is true or accurate.

165. Κάρτα 165

     Ερώτηση

     What are complementary angles?

     Απάντηση

     Two angles whose measures add to $90^\circ$.

166. Κάρτα 166

     Ερώτηση

     What primarily causes Earth's seasons?

     Απάντηση

     Earth's axial tilt as it orbits the Sun.

167. Κάρτα 167

     Ερώτηση

     What is a vehicle battery's main starting role?

     Απάντηση

     Provides electrical energy to the starter motor and ignition or control systems.

168. Κάρτα 168

     Ερώτηση

     What does plausible mean?

     Απάντηση

     Reasonable or believable.

169. Κάρτα 169

     Ερώτηση

     What are supplementary angles?

     Απάντηση

     Two angles whose measures add to $180^\circ$.

170. Κάρτα 170

     Ερώτηση

     What causes the Moon's phases?

     Απάντηση

     Our view of the Moon's sunlit half changes as the Moon orbits Earth.

171. Κάρτα 171

     Ερώτηση

     What does a hand file do?

     Απάντηση

     Removes small amounts of material to shape, deburr, or smooth a surface.

172. Κάρτα 172

     Ερώτηση

     What is a word's connotation?

     Απάντηση

     The feeling or association a word suggests beyond its literal meaning.

173. Κάρτα 173

     Ερώτηση

     What is the area of a parallelogram?

     Απάντηση

     $A=bh$, using the perpendicular height.

174. Κάρτα 174

     Ερώτηση

     What keeps planets in orbit around the Sun?

     Απάντηση

     Gravity supplies the inward force that bends their motion into an orbit.

175. Κάρτα 175

     Ερώτηση

     How do the speeds of two meshed gears compare?

     Απάντηση

     The smaller gear turns faster; speed is inversely related to tooth count.

176. Κάρτα 176

     Ερώτηση

     What does prudent mean?

     Απάντηση

     Careful and sensible about future consequences.

177. Κάρτα 177

     Ερώτηση

     What is the area of a trapezoid?

     Απάντηση

     $A=(b_1+b_2)h/2$.

178. Κάρτα 178

     Ερώτηση

     How does current behave in a simple series circuit?

     Απάντηση

     The same current passes through every component.

179. Κάρτα 179

     Ερώτηση

     What does the prefix mis- mean?

     Απάντηση

     Wrongly or badly, as in misjudge.

180. Κάρτα 180

     Ερώτηση

     What is the volume of a rectangular prism?

     Απάντηση

     $V=lwh$.

181. Κάρτα 181

     Ερώτηση

     What does a vehicle transmission do?

     Απάντηση

     Changes the speed-and-torque relationship between the engine and the drive wheels.

182. Κάρτα 182

     Ερώτηση

     What is a paraphrase?

     Απάντηση

     A restatement of the same idea in different words without changing its meaning.

183. Κάρτα 183

     Ερώτηση

     What is the volume of a cylinder?

     Απάντηση

     $V=\pi r^2h$.

184. Κάρτα 184

     Ερώτηση

     What does a drill bit do?

     Απάντηση

     Cuts a hole as it rotates; the bit type must match the material.

185. Κάρτα 185

     Ερώτηση

     What does tangible mean?

     Απάντηση

     Able to be touched; more broadly, real and definite.

186. Κάρτα 186

     Ερώτηση

     What is the surface area of a rectangular prism?

     Απάντηση

     $SA=2lw+2lh+2wh$.

187. Κάρτα 187

     Ερώτηση

     Which directions do two directly meshed external gears rotate?

     Απάντηση

     Opposite directions.

188. Κάρτα 188

     Ερώτηση

     What does candid mean?

     Απάντηση

     Honest and direct.

189. Κάρτα 189

     Ερώτηση

     How do corresponding lengths compare in similar figures?

     Απάντηση

     They share one scale factor; corresponding angles stay equal.

190. Κάρτα 190

     Ερώτηση

     How does voltage behave across branches of an ideal parallel circuit?

     Απάντηση

     Each branch has the same voltage as the source.

191. Κάρτα 191

     Ερώτηση

     What equation links distance, rate, and time?

     Απάντηση

     $d=rt$.

192. Κάρτα 192

     Ερώτηση

     What does a differential let driven wheels do?

     Απάντηση

     Rotate at different speeds while still receiving torque.

193. Κάρτα 193

     Ερώτηση

     What is the simple-interest formula?

     Απάντηση

     $I=Prt$, where $P$ is principal, $r$ is the decimal annual rate, and $t$ is time in years.

194. Κάρτα 194

     Ερώτηση

     What does a bench vise do?

     Απάντηση

     Holds a workpiece firmly while it is cut, filed, drilled, or assembled.

195. Κάρτα 195

     Ερώτηση

     How do you find a unit rate?

     Απάντηση

     Divide to express the quantity per one unit.

196. Κάρτα 196

     Ερώτηση

     How does an inclined plane trade force for distance?

     Απάντηση

     It reduces the required input force by increasing the distance over which the force acts.

197. Κάρτα 197

     Ερώτηση

     How do you calculate signed percent change?

     Απάντηση

     $\text{percent change}=(\text{new}-\text{original})/\text{original}\times100\%$, when the original is nonzero. A positive result is an increase; a negative result is a decrease.

198. Κάρτα 198

     Ερώτηση

     What is an open circuit?

     Απάντηση

     A broken or incomplete path in which current cannot flow through the intended loop.

199. Κάρτα 199

     Ερώτηση

     What two equations set up a two-part mixture problem?

     Απάντηση

     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.

200. Κάρτα 200

     Ερώτηση

     How does a disc brake slow a wheel?

     Απάντηση

     A caliper presses pads against a rotating disc, creating friction.

201. Κάρτα 201

     Ερώτηση

     How do combined work rates relate?

     Απάντηση

     Add the individual rates: $1/T=1/t_1+1/t_2$ for two workers acting together.

202. Κάρτα 202

     Ερώτηση

     What is pressure?

     Απάντηση

     Force per unit area: $p=F/A$.

203. Κάρτα 203

     Ερώτηση

     For equally likely outcomes, how is probability found?

     Απάντηση

     Favorable outcomes divided by total possible outcomes.

204. Κάρτα 204

     Ερώτηση

     What is a closed circuit?

     Απάντηση

     A complete conducting path that allows current to flow.

205. Κάρτα 205

     Ερώτηση

     How does a scale drawing connect drawing length to actual length?

     Απάντηση

     Corresponding lengths form an equal ratio using one consistent scale factor.

206. Κάρτα 206

     Ερώτηση

     What are the main jobs of tire tread?

     Απάντηση

     Provide grip and channel water away from the tire's contact area.

207. Κάρτα 207

     Ερώτηση

     How can two consecutive integers be represented algebraically?

     Απάντηση

     $n$ and $n+1$.

208. Κάρτα 208

     Ερώτηση

     What does Pascal's principle say?

     Απάντηση

     A change in pressure applied to a confined fluid is transmitted undiminished throughout the fluid and to the container walls.

209. Κάρτα 209

     Ερώτηση

     Why must you reverse the order in a phrase such as “5 less than $x$”?

     Απάντηση

     “5 less than $x$” means $x-5$, because the amount is subtracted from $x$.

210. Κάρτα 210

     Ερώτηση

     What is a short circuit?

     Απάντηση

     An unintended low-resistance path that can produce dangerously high current.

211. Κάρτα 211

     Ερώτηση

     What does engine oil do?

     Απάντηση

     Lubricates moving parts, reduces friction and wear, and helps carry heat and contaminants away.

212. Κάρτα 212

     Ερώτηση

     What does a capacitor store?

     Απάντηση

     Electric charge and energy in an electric field.

213. Κάρτα 213

     Ερώτηση

     What is the buoyant force on an immersed object equal to?

     Απάντηση

     The weight of the fluid the object displaces.

214. Κάρτα 214

     Ερώτηση

     What does a fuse do?

     Απάντηση

     Melts and opens the circuit when current exceeds its rated limit.

215. Κάρτα 215

     Ερώτηση

     What does friction do?

     Απάντηση

     Opposes relative motion or the tendency of motion between contacting surfaces.

216. Κάρτα 216

     Ερώτηση

     What does a resistor do in a circuit?

     Απάντηση

     Limits current or creates a controlled voltage drop.

217. Κάρτα 217

     Ερώτηση

     How does a lower center of gravity usually affect stability?

     Απάντηση

     It makes an object less likely to tip.

218. Κάρτα 218

     Ερώτηση

     What does a circuit breaker do?

     Απάντηση

     Opens a circuit when current is excessive and can usually be reset after the fault is cleared.

219. Κάρτα 219

     Ερώτηση

     What is torque?

     Απάντηση

     The turning effect of a force: force times perpendicular lever arm.

220. Κάρτα 220

     Ερώτηση

     What does a diode do?

     Απάντηση

     Allows current mainly in one direction while blocking it in the reverse direction.

220 κάρτες

ASVAB Flashcards: Verbal, Math, Science & Technical Review

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