Describe how loose, saturated, granular soil can be compacted.
What will be an ideal response?
Loose, saturated, granular soil can be compacted by subjecting it to a sudden shock and vibration. This causes the soil particles to fall into a denser pattern, displacing water from between them. The weight of the particles forces the water to flow from the soil. Explosives are typically used for this purpose. The spacing, depths, and sizes of the explosive charges are determined by experienced soil engineers.
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In a wiring diagram, ____.
a. the numbering system is different from the corresponding schematic diagram b. any time a component is gone through, the number will be reset to the original c. a set of numbers can be used more than once d. a set of numbers can be used only once
The heating element is designed to warm the seat and/or back of the seat to about ________.
A) 90°F (32°C) B) 70°F (21°C) C) 100°F (38°C) D) 50°F (10°C)
Cellular glass develops stress cracks when it _____.
a. remains at a constant temperature for long periods of time b. is exposed to high temperatures c. is exposed to low temperatures d. is exposed to direct sunlight
If a ____ is used for marking lines, it should be sharpened properly to increase accuracy.
A. center punch B. chalk C. soapstone D. metal scribe