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Marines > ASTB > Flashcards

ASTB Flashcards

1
Q

2^2

A

4

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2
Q

3^2

A

9

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3
Q

4^2

A

16

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4
Q

5^2

A

25

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5
Q

6^2

A

36

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6
Q

7^2

A

49

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7
Q

8^2

A

64

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8
Q

9^2

A

81

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9
Q

10^2

A

100

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10
Q

11^2

A

121

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11
Q

12^2

A

144

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12
Q

13^2

A

169

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13
Q

14^2

A

196

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14
Q

15^2

A

225

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15
Q

1^3

A

1

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16
Q

2^3

A

8

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17
Q

3^3

A

27

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18
Q

4^3

A

64

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19
Q

5^3

A

125

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20
Q

6^3

A

216

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21
Q

7^3

A

343

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22
Q

8^3

A

512

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23
Q

9^3

A

729

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24
Q

10^3

A

1000

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25
Q

Perfect squares

A

1, 4, 8, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225

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26
Q

Perfect cubes

A

1, 8, 27, 64, 125, 216, 343, 512, 729, 1000

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27
Q

Area of triangle

A

A=1/2 b*h

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28
Q

Area of rectangle

A

A=l*w

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29
Q

Area of a trapezoid

A

A=1/2(b1+b2)h

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30
Q

Area of a parallelogram

A

A=bh

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31
Q

Area of a circle

A

A=pi*r^2

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32
Q

Circumference of a circle

A

C=2pir or C=pid

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33
Q

Pythagorean theorem

A

a^2+b^2=c^2

34
Q

sin A=

A

Opposite/hypotenuse

a/c

35
Q

cosA

A

Adjacent/hypotenuse

36
Q

tanA

A

Opposite/adjacent

37
Q

Probability

A

Number of events wanted / total possible events

38
Q

Newton’s laws

A
  1. Every object in a state of uniform motion tends to stay in that state of motion unless an external force is applied to it.
  2. The relationship between an objects mass, it’s acceleration, and the applied force is F=ma. Acceleration and force are vectors; in this law the direction of the force vector is the same direction of the acceleration vector.
  3. Force exists only in pairs. Force acting on a body always elicits an equal, opposite force acting against it.
39
Q

Balancing a lever arm

A

Side A Force x length = Side B Force x length

40
Q

Boyle’s law

A

If a gas remains at a CONSTANT TEMPERATURE, the volume is INVERSELY proportional to the pressure. Thus compressing a gas to 1/2 it’s volume doubles the pressure.

41
Q

Charles’ law

A

If a gas is held at a constant pressure, the volume is DIRECTLY proportional to the absolute temperature. Thus heating a gas to double it’s original temperature doubles it’s volume.

42
Q

Bernoulli’s principle

A

As the velocity of a fluid increases, it’s pressure decreases.

43
Q

Ailerons control

A

Bank angle around longitudinal axis

44
Q

Elevator controls

A

Pitch around lateral axis

45
Q

Elevator up

A

Plane climbs

46
Q

Elevator down

A

Plane dives

47
Q

Rudder controls

A

Yaw around vertical axis

48
Q

Thrust

A

Forward force created by propeller or jet exhaust, counters drag

49
Q

Drag

A

Rearward force that counters thrust

50
Q

Lift

A

Force opposing gravity

51
Q

Gravity

A

Force opposing lift

52
Q

Four forces of flight

A

Thrust, drag, lift, gravity

53
Q

Density altitude

A

A measure of the combined effects of outside air temperature and air pressure compared to a normal temperature/pressure day

54
Q

Normal pressure/temperature day

A

15 Celsius and 29.92 inches of mercury

55
Q

Forms of drag

A
  1. Form/pressure drag (shape of aircraft or airfoil)
  2. Skin friction drag (solid and gas causing friction)
  3. Parasite drag = form drag + skin friction drag
  4. Induced drag (drag due to lift) created by vortices at the tip of the aircraft wing. Increases in direct proportion to angle of attack
56
Q

First powered flight

A

Kitty Hawk, North Carolina in December 1903

57
Q

Charles Lindbergh flight

58
Q

Father of the helicopter

A

Igor Ivanovich Sikorsky

59
Q

First person to break the sound barrier

A

Chuck Yeager in the X-1 on October 14, 1947

60
Q

Volume of a cube

Surface area of a cube

A

V=a^3

SA=6a^2

61
Q

Volume and surface area of a sphere

A

V=4/3pi•r^3

SA=4pi•r^2

62
Q

Right circular cone volume and surface area

A

V=1/3pi•r^2•h

SA=pi•r^2+pi•r•l

63
Q

Mach 1

A

At 20 degrees celcius and 29.92 inches of mercury it is 761 mph

64
Q

Movement about the longitudinal axis of the aircraft is termed

65
Q

Four factors that affect density altitude

A

Altitude
Atmospheric pressure
Temperature
Moisture content of the air

66
Q

The international nautical mile

A

6078 feet, (statue ole is 5280 feet) ratio is 8/7

67
Q

Standard weight for gasoline and oil?

A

6 lbs gas

7.5lbs oil

68
Q

Airport signal not to land because it is unsafe

A

Flashing red lights

69
Q

Color of lights on airport runways

70
Q

Four methods of determining position in marine navigation

A
  1. Piloting
  2. Dead reckoning
  3. Celestial navigation
  4. Electronic navigation
71
Q

Can buoys

A

Cylindrical buoys are unlighted AtoN. When used as a lateral mark, they indicate the left side of the channel or the preferred channel when returning from seaward. Usually solid green, or top line green. Also used as unlighted special marks.

72
Q

Nun buoys

A

Conical buoys are unlighted AtoN indicating the right side of a channel or of the preferred channel when returning from seaward. Painted red. Can also be used as unlighted special marks.

73
Q

Distance between degrees and minutes latitude

A

60 nautical miles between degrees latitude, 1 NM for each minute

74
Q

Distance between degrees longitude

A

60 miles at the equator, undefined at the poles

75
Q

Length of a fathom

76
Q

Variation

A

True north differs from magnetic north by the variation

77
Q

Deviation

A

Magnetic north differs from the compass by the deviation

78
Q

Compass error

A

Combination of variation and deviation

79
Q

Father of the Navy?

A

John Paul Jones

80
Q

1^2

Marines (2 decks)

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