Equivalent Circulation Density (ECD) is the effective density exerted by a circulating fluid against the formation that takes into account the frictional pressure in the annulus. a. True b. False

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Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.