ASTB Flashcards
(80 cards)
1
Q
2^2
A
4
2
Q
3^2
A
9
3
Q
4^2
A
16
4
Q
5^2
A
25
5
Q
6^2
A
36
6
Q
7^2
A
49
7
Q
8^2
A
64
8
Q
9^2
A
81
9
Q
10^2
A
100
10
Q
11^2
A
121
11
Q
12^2
A
144
12
Q
13^2
A
169
13
Q
14^2
A
196
14
Q
15^2
A
225
15
Q
1^3
A
1
16
Q
2^3
A
8
17
Q
3^3
A
27
18
Q
4^3
A
64
19
Q
5^3
A
125
20
Q
6^3
A
216
21
Q
7^3
A
343
22
Q
8^3
A
512
23
Q
9^3
A
729
24
Q
10^3
A
1000
25
Perfect squares
1, 4, 8, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225
26
Perfect cubes
1, 8, 27, 64, 125, 216, 343, 512, 729, 1000
27
Area of triangle
A=1/2 b*h
28
Area of rectangle
A=l*w
29
Area of a trapezoid
A=1/2(b1+b2)h
30
Area of a parallelogram
A=bh
31
Area of a circle
A=pi*r^2
32
Circumference of a circle
C=2pi*r or C=pi*d
33
Pythagorean theorem
a^2+b^2=c^2
34
sin A=
Opposite/hypotenuse
| a/c
35
cosA
Adjacent/hypotenuse
36
tanA
Opposite/adjacent
37
Probability
Number of events wanted / total possible events
38
Newton's laws
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
Balancing a lever arm
Side A Force x length = Side B Force x length
40
Boyle's law
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
Charles' law
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
Bernoulli's principle
As the velocity of a fluid increases, it's pressure decreases.
43
Ailerons control
Bank angle around longitudinal axis
44
Elevator controls
Pitch around lateral axis
45
Elevator up
Plane climbs
46
Elevator down
Plane dives
47
Rudder controls
Yaw around vertical axis
48
Thrust
Forward force created by propeller or jet exhaust, counters drag
49
Drag
Rearward force that counters thrust
50
Lift
Force opposing gravity
51
Gravity
Force opposing lift
52
Four forces of flight
Thrust, drag, lift, gravity
53
Density altitude
A measure of the combined effects of outside air temperature and air pressure compared to a normal temperature/pressure day
54
Normal pressure/temperature day
15 Celsius and 29.92 inches of mercury
55
Forms of drag
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
First powered flight
Kitty Hawk, North Carolina in December 1903
57
Charles Lindbergh flight
1927
58
Father of the helicopter
Igor Ivanovich Sikorsky
59
First person to break the sound barrier
Chuck Yeager in the X-1 on October 14, 1947
60
Volume of a cube
| Surface area of a cube
V=a^3
| SA=6a^2
61
Volume and surface area of a sphere
V=4/3pi•r^3
| SA=4pi•r^2
62
Right circular cone volume and surface area
V=1/3pi•r^2•h
| SA=pi•r^2+pi•r•l
63
Mach 1
At 20 degrees celcius and 29.92 inches of mercury it is 761 mph
64
Movement about the longitudinal axis of the aircraft is termed
Bank
65
Four factors that affect density altitude
Altitude
Atmospheric pressure
Temperature
Moisture content of the air
66
The international nautical mile
6078 feet, (statue ole is 5280 feet) ratio is 8/7
67
Standard weight for gasoline and oil?
6 lbs gas
| 7.5lbs oil
68
Airport signal not to land because it is unsafe
Flashing red lights
69
Color of lights on airport runways
White
70
Four methods of determining position in marine navigation
1. Piloting
2. Dead reckoning
3. Celestial navigation
4. Electronic navigation
71
Can buoys
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
Nun buoys
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
Distance between degrees and minutes latitude
60 nautical miles between degrees latitude, 1 NM for each minute
74
Distance between degrees longitude
60 miles at the equator, undefined at the poles
75
Length of a fathom
6 feet
76
Variation
True north differs from magnetic north by the variation
77
Deviation
Magnetic north differs from the compass by the deviation
78
Compass error
Combination of variation and deviation
79
Father of the Navy?
John Paul Jones
80
1^2
1
