engineering recuitment BEL Probationary Engineers Mock Test 2025 Fluid Mechanics Flow Through Pipes Hydraulic Gradient Line and Total Energy Line
The hydraulic grade line for flow in a pipe of constant internal diameter _______ .
1
coincides with the physical centerline of the pipe
2
is always above the centerline of the pipe
3
is always sloping down in the direction of flow
4
is always above the total energy grade line