Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Occupations | Operates drilling unit, mounted on truck or crawler track, to drill holes for concrete pier and footing foundations: Raises and lowers boom to specified angle for drilling. Swings boom, controls hoist drums, raises and lowers drill, hoists drill bit, bell reamer, casing, and reinforcement steel into position, and controls rotary table that drives drill into earth. Observes drill stem during drilling operation and increases or decreases brake pressure on drill stem hoist drum to prevent swaying motion. Raises drill stem and swings boom to discharge dirt from drill bit or $T3bell reamer.$T1 Observes type of earth formation penetrated to determine need for lowering casing into hole to seal off water and prevent cave-in of soft formations. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)46 4F 55 4E 44 41 54 49 4F 4E 2D 44 52 49 4C 4C 4F 50 45 52 41 54 4F 52 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000110 01001111 01010101 01001110 01000100 01000001 01010100 01001001 01001111 01001110 00101101 01000100 01010010 01001001 01001100 01001100 00100000 01001111 01010000 01000101 01010010 01000001 01010100 01001111 01010010 |
HTML Code (1990) (references)F O U N D A T I O N - D R I L L   O P E R A T O R |
ISO 10646 (1991-1993) (references)0046 004F 0055 004E 0044 0041 0054 0049 004F 004E 002D 0044 0052 0049 004C 004C 004F 0050 0045 0052 0041 0054 004F 0052 |
Encryption (beginner's substitution cypher): (references)4049554838355443494815385243464624950395235544952 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
