The reflected ceiling electrical plan usually identifies the type luminaries in a note. Look for a number, letter or combination near the fixture and a corresponding note usually found in a table on the plans.
index contour
the top of the elevated hill, slope, or mountain.
Contour lines show elevation differences on topographic maps. On other maps, a coloured grid can show changes in elevation (these are called digital elevation models or DEMs).
Studies indicate that the Popocatepetl volcano is around 730,000 years old. The volcano is located in Central Mexico, and its elevation is 17,802 feet.
An elevation map is a map that shows how high the ground is above a standard level such as sea level. There are also elevation drawings, in architecture. These show the dimensions of the vertical sides of a building, again, showing how high things are.
The numbers of contour lines indicate altitude or elevation along that line.
index contour
On a Topographic map, contour lines indicate connecting points of equal elevation. i think
The lines connect points that are at the same elevation.
Little change in elevation, or a low gradient
they were found on rough ceilings and walls of the caves indicating where the magic rituals were performed
Contour lines that are far apart indicate a gentle slope. Because contour lines connect points with the same elevation, wide spacing indicates that the elevation is not changing drastically.
The numerical values along the lines of contour, indicate the elevation above or below sea level.
the top of the elevated hill, slope, or mountain.
dimension line
It means a small difference in elevation
Contour lines show elevation differences on topographic maps. On other maps, a coloured grid can show changes in elevation (these are called digital elevation models or DEMs).