02. Speed Symbol and Speed
| Speed Symbol | Speed km/hr | Speed Symbol | Speed km/hr |
| A1 | 5 | K | 110 |
| A2 | 10 | L | 120 |
| A3 | 15 | M | 130 |
| A4 | 20 | N | 140 |
| A5 | 25 | P | 150 |
| A6 | 30 | Q | 160 |
| A7 | 35 | R | 170 |
| A8 | 40 | S | 180 |
| B | 50 | T | 190 |
| C | 60 | H | 210 |
| E | 70 | V | 240 |
| F | 80 | W | 270 |
| G | 90 | Y | 300 |
| J | 100 | Z | above 300 km/hr |
03. Air Pressure Conversion Table
| kPa | bar | psi(lbf/in2) | kgf/Cm2 |
| 100 | 1.0 | 15 | 1.0 |
| 150 | 1.5 | 22 | 1.5 |
| 200 | 1.0 | 29 | 2.0 |
| 250 | 2.5 | 36 | 2.6 |
| 300 | 3.0 | 44 | 3.1 |
| 350 | 3.5 | 51 | 3.6 |
| 400 | 4.0 | 58 | 4.1 |
| 450 | 4.5 | 65 | 4.6 |
| 500 | 5.0 | 73 | 5.1 |
| 550 | 5.5 | 80 | 5.6 |
| 600 | 6.0 | 87 | 6.1 |
| 650 | 6.5 | 94 | 6.6 |
| 700 | 7.0 | 102 | 7.1 |
| 750 | 7.5 | 109 | 7.7 |
| 800 | 8.0 | 116 | 8.2 |
| 850 | 8.5 | 123 | 8.7 |
| 900 | 9.0 | 131 | 9.2 |
| 950 | 9.5 | 138 | 9.7 |
| 1,000 | 10.0 | 145 | 10.2 |
| 1,050 | 10.5 | 152 | 10.7 |
Remark | m(meter) | = 1inch = 0.025m(25.4mm), 1mile = 1609m(1.609km) |
| kg(kilogram) | = 1pound(lb) = 0.4536kg |
| Pa(Pascal) | = 1bar =100kPa, 1kgf / = 98.066kPa, 1pound per square inch(p.s.i or lbf / in2 ) = 6.895kPa |
| m/s(meter per second) | = 1km per hour (km/h) = 0.27778m/ s, 1mile per hour(m.p.h) = 0.470m /s(1.60935km/h) |
