WorksheetsCST 241, Ch 4: Grid and Trenches
Total questions: 9
Worksheet time: 5mins
If your grid size is 40 ft x 20 ft, what is the area of each grid?
800 sq ft
80 sq ft
600 sq ft
60 sq ft
If your Grid Area is 1600 sq ft, what is the Area constant?
A/4
400
44
4
What modern ways does an estimator use to do a site takeoff? (choose all that apply)
Sonic digitizer
Sonic burger
Tablet digitizer
On Screen Takeoff
SWAG
To get the trench volume, the following are used to calculate
centerline length, average footing width, cutback slope
centerline width, deepest excavation, footing width
centerline length, average width, average depth
centerline length, centerline width, cutback slope
On grid method, the top 2 sections denote New Grade and Existing Grade, what is shown in the bottom 2 sections?
Depth of footing, width of footing
Area constant, volume cut
Depth of cut, depth of fill
Area constant, average depth
The trench excavation calculated is 300 cu. yds and the backfill amount is 180 cu. yds. How much dirt do you need to have delivered?
120 cu. yds
480 cu. yds
0
100 cu. yds
If your new elevation is 5.4 ft and existing elevation is 9.4 ft. What change needs to be recorded on the grid?
4 ft cut
4 ft fill
4.4 ft cut
0
Piles can be timber, steel or precast concrete
True
False
If a vertical or near-vertical excavation needs to be done, it does not require to be supported by piles, soil nails or some other engineered method.
True
False
