Physics · Fluid Mechanics

Select the correct option on the basis of the statements given below. Statement I: For an idealized Bernoulli's flow through a horizontal pipe, the Energy Grade Line (EGL) is always horizontal and the Hydraulic Gradient Line (HGL) is parallel to the Energy Grade Line. Statement II: Hydraulic Gradient Line (HGL) is defined as the line which gives the sum of pressure head (p/γ) and datum head (z) of a flowing fluid in a pipe with respect to some reference line.