EXAM 1 Flashcards
(38 cards)
Surveying
science and art of determining the relative positions of points above, on or beneath the earth’s surface and locating the points in the field
surveying had its beginning in _______ about _______BC
Egypt
1400 BC
Egyptian surveyors were created to relocate the land divisions (measurements were made with ropes having knots at unit distances)
Rope stretchers
extensive use of surveying in building of ___________
egyptian monuments
_________: expanded Egyptian work and developed Geometry
Greek
Developed one of the earliest surveying instruments __________ developed by ___________________ ancient Greek mathematician and engineer
Diopter
Heron of Alexandria
___________: developed surveying into a science to create the Roman roads, aqueducts and land division systems
Romans
Surveyors held great power, had _________ and _________
schools
a professional organization
__________ cross instrument used to determine lines and right angles
Groma (Roman)
__________ “A” frame with a plumb bob used for leveling
Libella (Roman)
_____________ 20’ straight edge with oil in notch for leveling
Chrobates (Roman)
_____________: Land division of Romans continued in Europe
Middle Ages
_________ square brass frame capable of turning angles up to 90deg and has a graduated scale developed by Italian named Von Piso
Quadrans
_______ & ________ century in the New world: the need of mapping land claims caused extensive surveying especially by the english
18th & 19th
_________ united stated began extensive surveys of public lands into one mile square sections
1785
_________ United states geological survey founded to establish an accurate control network and mapping
1807
Famous American Surveyors
George Washington
Thomas Jefferson
George Rogers Clark
Abe Lincoln
______ Century and Beyond : as technology advanced population increased and land value caused development of f licensure for surveyors in all states
20th
Educational requirements for licensure began in the early
1990’s
shortage of licensed professionals is projected well into the ______ century
21st
The work of surveyor the 5 phases
- Decision Making
- Fieldwork & Data Collection
- Computing & Data Processing
- Mapping or Data Representation
- Stakeout
primary objective of survey
is preparation of plan of estate or buildings roads, railways, pipelines, canal or to measure area of field, state, nation
objective of geodetic surveying
is to determine precise positions on the surface of the earth of widely distant points
uses of surveying
- to prepare a topological map it shows hills, valleys, rivers, villages, town etc
- to prepare a cadastral map showing the boundaries of field house, and other properties
- to prepare an engineering map to show the details like roads, railways, canals etc