9 Terms
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Heavy & civil
Industry: Construction
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Heavy & civil
Rule of thumb
Construction; Heavy & civil
A statement or formula that is not exactly correct, but is accurate enough for use in rough figuring.
Saddle block
Construction; Heavy & civil
In a dipper shovel, the boom swivel block through which the stick slides when crowded or retracted.
Sand
Construction; Heavy & civil
Loose granular, gritty particles or worn or disintegrated rock, finer than gravel and coarser than dust.
Scarifier
Construction; Heavy & civil
An accessory on a grader, roller or other machine, used chiefly for shallow loosening of road surfaces.
Scraper
Construction; Heavy & civil
A digging, hauling, and grading machine having a cutting edge, a carrying bowl, a moveable front wall (apron), and a dumping or ejecting mechanism. (Carrying scraper; pan scraper.) .
Scraper, self-powered
Construction; Heavy & civil
A scraper built into a single unit with a tractor.
Shale
Construction; Heavy & civil
A fissile rock composed of laminated layers of clay-like, fine-grained sediments.
