handling the drill pipe
41Deep foundation — A deep foundation installation for a bridge in Napa, California, United States …
42Chalk line — tool. A chalk line or chalk box is a tool for marking long, straight lines on relatively flat surfaces, much farther than is practical by hand or with a straightedge. It is an important tool in construction and carpentry, the working of timber in …
43Titanium — This article is about the chemical element. For other uses, see Titanium (disambiguation). scandium ← titanium → vanadium …
44Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… …
45Electrical conduit — risers, seen inside fire resistance rated shaft, as seen entering bottom of a firestop. The firestop is made of firestop mortar on top, rockwool on the bottom. Raceways are used to protect cables from damage …
46Straight razor — A straight razor with square point and a double transverse stabiliser Main article: Razor A straight razor is a razor with a blade that can fold into its handle.[1] …
47Building insulation materials — A selection of insulation materials can aid in building insulation. All of these are based on standard principles of thermal insulation. Materials used to reduce heat transfer by conduction, radiation or convection are employed in varying… …
48Warrant Officer — A Warrant Officer (WO) is a member of a military organization holding one of a specific group of ranks. In most countries they are effectively senior non commissioned officers, although technically in a class of their own between NCOs and… …
49York County School of Technology — Infobox School name = York County School of Technology imagesize = 350px|upright caption = location = 2179 S. Queen St York, Pennsylvania 17402 USA district = superintendent = principal = Ms. Slone Arts and Human Services Academy Principle Ms.… …
50Handloading — or reloading is the process of loading firearm cartridges or shotgun shells by assembling the individual components (case/shotshell, primer, powder, and bullet/shot), rather than purchasing completely assembled, factory loaded cartridges.… …
