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• Standard penetration test — The standard penetration test (SPT) is an in situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. The test procedure is described in the British Standard BS 1377 9:1990 and ASTM D1586.… …   Wikipedia

• Marine Corps Test Unit — #1 Active 1 July 1954 19 June 1957 Country United States Allegiance Department of the Navy Branch United States Marine Corps The …   Wikipedia

• Geotechnical engineering — [ Boston s Big Dig presented geotechnical challenges in an urban environment.] Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering includes investigating …   Wikipedia

• Geotechnical investigation — Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil and rock around a site to design earthworks and foundations for proposed structures and for… …   Wikipedia

• ISU-152 — The first ISU 152, in the courtyard of Factory No. 100, 1943 Type Self propelled gun Place of o …   Wikipedia

• Hydrometer — Not to be confused with Hygrometer. Hydrometer from Practical Physics Schematic drawing of a hydrometer. The lower the densi …   Wikipedia

• NLGI Grade — is a widely used classification for lubricating greases. It was established by the National Lubricating Grease Institute. Greases are classified in one of nine grades based on their consistency. NLGI Grade alone is not sufficient for specifying… …   Wikipedia

• Water content — Soil composition by phase: s soil (dry), v void (pores filled with water or air), w water, a air. V is volume, M is mass. Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture),… …   Wikipedia

• Porosity — or void fraction is a measure of the void (i.e., empty ) spaces in a material, and is a fraction of the volume of voids over the total volume, between 0–1, or as a percentage between 0–100%. The term is used in multiple fields including… …   Wikipedia

• Bazooka — Infobox Weapon name= Launcher, Rocket, Antitank, M 9 Series caption= M9A1 Bazooka with larger M20 Super Bazooka origin=flagcountry|United States type= Recoilless rocket antitank weapon is ranged=yes is explosive=yes is artillery=yes service=… …   Wikipedia

• Angle of repose — For the Wallace Stegner novel, see Angle of Repose (novel). For the friction angle between two solid objects, see Friction. For the Sleepytime Gorilla Museum song of the same name, see In Glorious Times. Angle of repose The angle of repose or,… …   Wikipedia