WEIGHTS, MEASUREMENTS AND CONVERSION FACTORS Flashcards
1
Q
MEASUREMENT SYSTEMS
WHAT ARE THE THREE SYSTEMS OF MEASUREMENT?
A
- BRITISH IMPERIAL UNITS
- UNITED STATES CUSTOMARY UNITS
- SI UNITS
2
Q
MEASUREMENT SYSTEMS
WHAT DOES SI STAND FOR?
A
INTERNATIONAL SYSTEM OF UNITS
3
Q
MEASUREMENT SYSTEMS
WHAT IS SI?
A
THE INTERNATIONAL DECIMAL SYSTEM OF WEIGHTS AND MEASURES
DERIVED FROM AND EXTENDING THE METRIC SYSTEM OF UNITS
4
Q
SI UNITS
LENGTH
A
L,d,s
METRE
m
5
Q
SI UNITS
MASS
A
m
KILOGRAM
kg
6
Q
SI UNITS
TIME
A
t
SECOND
s
7
Q
SI UNITS
SPEED, VELOCITY
A
v
METRE PER SECOND
m/s
8
Q
SI UNITS
ACCELERATION
A
a
METRE PER SECOND SQUARED
m/s²
9
Q
SI UNITS
TEMPERATURE
A
T
DEGREE CELCIUS
°C
10
Q
SI UNITS
THERMODYNAMIC TEMPERATURE
A
T
KELVIN
K
11
Q
SI UNITS
AREA
A
A
SQUARE METRE
m²
12
Q
SI UNITS
VOLUME
A
V
CUBIC METRE
m³
13
Q
SI UNITS
DENSITY
A
p(RHO)
KILOGRAM PER CUBIC METRE
kg/m³
14
Q
METRIC SI PREFIXES
YOTTA
Y
A
1 000 000 000 000 000 000 000 000
10²⁴
YOTTAWATT
AT 24 I WENT ON A YACHT
15
Q
METRIC SI PREFIXES
ZETTA
Z
A
1 000 000 000 000 000 000 000
10²¹
ZETTAWATT
AT 21 I ZETTLED WITH DOUG
16
Q
METRIC SI PREFIXES
EXA
E
A
1 000 000 000 000 000 000
10¹⁸
EXAWATT
AT 18 I HAD MY FIRST EX
17
Q
METRIC SI PREFIXES
PETA
P
A
1 000 000 000 000 000
10¹⁵
PETAWATT
AT 15 I PET A LLAMA
18
Q
METRIC SI PREFIXES
TERA
T
A
1 000 000 000 000
10¹²
TERAWATT
AT 12 I WAS A TERROR
19
Q
METRIC SI PREFIXES
GIGA
G
A
1 000 000 000
10⁹
GIGAWATT
AT 9 I GIGGLED A LOT
20
Q
METRIC SI PREFIXES
MEGA
M
A
1 000 000
10⁶
MEGAWATT
AT 6 I WAS GETTING MEGA
21
Q
METRIC SI PREFIXES
KILO
k
A
1 000
10³
KILOWATT
22
Q
METRIC SI PREFIXES
HECTO
h
A
100
10²
HECTOWATT
23
Q
METRIC SI PREFIXES
DEKA
da
A
10
10¹
DEKAWATT
24
Q
METRIC SI PREFIXES
DECI
d
A
0.1
10-¹
DECIWATT
25
# METRIC SI PREFIXES
CENTI
| c
0.01
10-²
CENTIWATT
26
# METRIC SI PREFIXES
MILLI
| m
0.001
10-³
MILLIWATT
27
# METRIC SI PREFIXES
MICRO
| µ
0.000 001
10-⁶
MICROWATT
28
# METRIC SI PREFIXES
NANO
| n
0.000 000 001
10-⁹
NANOWATT
29
# METRIC SI PREFIXES
PICO
| p
0.000 000 000 001
10-¹²
PICOWATT
30
# METRIC SI PREFIXES
FEMTO
| f
0.000 000 000 000 001
10-¹⁵
FEMTOWATT
31
# METRIC SI PREFIXES
ATTO
| a
0.000 000 000 000 000 001
10-¹⁸
ATTOWATT
32
# METRIC SI PREFIXES
ZEPTO
| z
0.000 000 000 000 000 000 001
10-²¹
ZEPTOWATT
33
# METRIC SI PREFIXES
YOCTO
| y
0.000 000 000 000 000 000 000 001
10-²⁴
YOCTOWATT
34
# COMMON ENGINEERING CONVERSIONS - LENGTH
INCH - MM
MULTIPLY BY 25.4MM
1 INCH = 25.4 MM
35
# COMMON ENGINEERING CONVERSIONS - LENGTH
FOOT - INCH
MULTIPLY BY 12 INCH
1 FOOT = 12 INCHES
36
# COMMON ENGINEERING CONVERSIONS - LENGTH
METRE - CM
MULTIPLY BY 100
1 METRE = 100 CM
37
# COMMON ENGINEERING CONVERSIONS - LENGTH
METRE - FT
MULTIPLY BY 3.2808399
1 METRE = 3.2808399 FT
38
# COMMON ENGINEERING CONVERSIONS - VOLUME
US GAL - LITRE
MULTIPLY BY 3.785411784
1 US GAL = 3.785411784 L
39
# COMMON ENGINEERING CONVERSIONS - VOLUME
US GAL - US PINT
MULTIPLY BY 8
1 US GAL = 8 US PINTS
40
# COMMON ENGINEERING CONVERSIONS - VOLUME
IMP GAL - LITER
MULTIPLY BY 4.546
1 IMP GAL = 4.546 L
41
# COMMON ENGINEERING CONVERSIONS - VOLUME
IMP GAL - IMP PINTS
MULTIPLY BY 8
1 IMP GAL - 8 IMP PINTS
42
# COMMON ENGINEERING CONVERSIONS - VOLUME
LITRE - C/M³
MULTIPLY BY 1000
1 LITRE = 1000 C/M³
43
# COMMON ENGINEERING CONVERSIONS - VOLUME
LITRE - IMP GAL
DIVIDE BY 4.546
1 LITRE = 0.219969 IMP GAL
44
# COMMON ENGINEERING CONVERSIONS - VOLUME
LITRE - US GAL
DIVIDE BY 3.785
1 LITRE = 0.2642 US GAL
45
# COMMON ENGINEERING CONVERSIONS - LENGTH
METRE - INCH
MULTIPLY BY 39.37
1 METRE = 39.37 INCH
46
# COMMON ENGINEERING CONVERSION - FORCE AND WEIGHT
NEWTON - LB
DIVIDE BY 4.4482
1 NEWTON = 0.22481
47
# COMMON ENGINEERING CONVERSION - FORCE AND WEIGHT
LB - NEWTON
MULTIPLY BY 4.44822
1 LB = 4.44822 N
48
# COMMON ENGINEERING CONVERSION - FORCE AND WEIGHT
KILOGRAM - POUND
MULTIPLY BY 2.2046
1 KILO = 2.2046 LB
49
# COMMON ENGINEERING CONVERSION - FORCE AND WEIGHT
KILOGRAM - GRAM
MULTIPLY BY 1000
1 KILO = 1000 g
50
# COMMON ENGINEERING CONVERSION - FORCE AND WEIGHT
POUND - KILOGRAM
DIVIDE BY 2.2046
1LB = 0.4536
51
# COMMON ENGINEERING CONVERSION - FORCE AND WEIGHT
POUND - OUNCE
MULTIPLY BY 16
1 POUND = 16 OUNCES
52
# COMMON ENGINEERING CONVERSION - POWER
HORSEPOWER - WATT
MULTIPLY BY 746 W
1 HP = 746 W
53
# COMMON ENGINEERING CONVERSION - POWER
HORSEPOWER - ft.lb/sec
MULTIPLY BY 550
1 HP = 550ft.lb/sec
54
# COMMON ENGINEERING CONVERSION - POWER
BRITISH THERMAL UNIT PER HOUR - WATT
DIVIDE BY 3.41214
1 BTU/HR = 0.293 W
55
# COMMON ENGINEERING CONVERSION - PRESSURE
ATMOSPHERE - PASCAL
MULTIPLY BY 101325
1 ATM = 101325 Pa
56
# COMMON ENGINEERING CONVERSION - PRESSURE
ATMOSPHERE - inHg
MULTIPLY BY 29.92
1 ATM = 29.92inHg
57
# COMMON ENGINEERING CONVERSION - PRESSURE
ATMOSPHERE - mmHg
MULTIPLY BY 760
1 ATM = 760 mmHg
58
# COMMON ENGINEERING CONVERSION - PRESSURE
PASCAL - NEWTON METRE SQUARE
MULTIPLY BY 1
1 Pa = 1 N/m²
59
# COMMON ENGINEERING CONVERSION - PRESSURE
PASCAL - lb/in²
DIVIDE BY 6894.76
1 PASCAL = 0.00014504 lb/in²
60
# COMMON ENGINEERING CONVERSION - PRESSURE
BAR - Pa
MULTIPLY BY 100 000
1 BAR = 100 000 Pa
61
# COMMON ENGINEERING CONVERSION - PRESSURE
BAR - lb/in²
MULTIPLY BY 14.6
1 BAR = 14.6 lb/in²
62
# COMMON ENGINEERING CONVERSION - PRESSURE
PSI - Pa
MULTIPLY BY 6894.75
1 PSI = 6894.75 Pa
63
# COMMON ENGINEERING CONVERSION - PRESSURE
PSI - inHg
MULTIPLY BY 2.036
1 PSI = 2.036inHg
64
# COMMON ENGINEERING CONVERSION - TEMPERATURE
°F - °C
°C = 5/3 (°F - 32)
65
# COMMON ENGINEERING CONVERSION - TEMPERATURE
°C - °F
°F = °C x 9/5 + 32
66
# COMMON ENGINEERING CONVERSION - ACCELERATION DUE TO GRAVITY
g - m/s²
MULTIPLY BY 9.8
1g = 9.8 m/s²
67
# AVIATION CONVERSIONS - FUEL LOADS
HOW CAN AIRCRAFT FUEL BE MEASURED?
IN VOLUME (LITRES, GALLONS)
BY WEIGHT (POUNDS, KILOGRAMS)
68
# AVIATION CONVERSIONS - FUEL LOADS
CONVERT 71 170 IMP GAL TO LITRES
71 170 x 4.546
= 323538.82
69
# SYSTEM PRESSURE
WHAT ARE THE MOST CRITICAL PRESSURE MEASUREMENT INSTRUMENTS ON AIRCRAFT?
* ENGINE OIL PRESSURE
* ENGINE PRESSURE RATIO
* FUEL PRESSURE
* HYDRAULIC PRESSURE
* VACUUM PRESSURE
* AIR PRESSURE
70
# SYSTEM PRESSURE
HOW DO PRESSURE INSTRUMENTS WORK?
BY MEASURING THE PRESSURE DIFFERENCE BETWEEN TWO PLACES
71
# SYSTEM PRESSURE
WHAT IS THE ABSOLUTE PRESSURE OF A FLUID?
THE PRESSURE DIFFERENCE BETWEEN A FLUID AND A VACUUM -
WHICH EXERTS NO PRESSURE
72
# SYSTEM PRESSURE
WHICH AIRCRAFT INSTRUMENTS MAKE USE OF ABSOLUTE PRESSURE VALUES?
* ALTIMETER
* RATE OF CLIMB INDICATOR
* MANIFOLD PRESSURE GAUGE
73
# SYSTEM PRESSURE
WHAT IS STANDARD PRESSURE?
THE STANDARD VALUE CREATED FOR ATMOSPHERIC PRESSURE
74
# SYSTEM PRESSURE
IN IMPERIAL UNITS WHAT IS THE STANDARD ATMOSHPERIC PRESSURE?
14.696 psi
75
# SYSTEM PRESSURE
CONVERT THE ATMOSPHERIC PRESSURE AT SEA LEVEL OF 14.7 PSI TO PASCALS (Pa)
14.7 x 6894.75 =
101352.825 Pa
76
# SYSTEM PRESSURE
CONVERT THE ATMOSPHERIC PRESSURE AT SEA LEVEL OF 14.7 PSI TO INCHES OF MERCURY (inHg)
14.7 x 2.036 =
29.9292 inHg
77
# PRESSURE CONVERSIONS
atm - inHg
MULTIPLY BY 29.92
1 atm = 29.92 inHg
78
# PRESSURE CONVERSIONS
atm - bar
MULTIPLY BY 1.01325
1 atm = 1.01325 bar
79
# PRESSURE CONVERSIONS
inHg - Pa
MULTIPLY BY 3386
1 inHg = 3386 Pa
80
# PRESSURE CONVERSIONS
psi - inHg
MULTIPLY BY 2.036
1 psi = 2.036 inHg
81
# PRESSURE CONVERSIONS
psi - Pa
MULTIPLY BY 6894.75
1 psi = 6894.75 Pa
