1. What is knurling? : Knurling is a machining process normally carried our on a centre lathe. The act of Knurling creates a raised criss-cross pattern on a smooth round bar that could be used as a handle or something that requires extra grip. 2. What is the mechanical advantage of a double pulley? : It only takes half the effort to move an object but twice the distance. 3. What is extrued aluminum? : Extrusion is the process where a metal or a metal bar is pulled through a mandrel to elongate it and/or give it a final shape. Extruded Aluminum is a common form of making small aluminum wire, bars or beams and many varieties of small non-structural, decorative pieces. 4. What is a Newtonian fluid? : A Newtonian fluid possesses a linear stress strain relationship curve and it passes through the origin. The fluid properties of a Newtonian fluid do not change when any force acts upon it. 5. What are the points in the stress strain curve for steel? : Proportional limit, elastic limit or yield point, ultimate stress and stress at failure.
Posted on: Sun, 09 Mar 2014 15:30:32 +0000
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