While there is no official standalone "solution manual" released by the publisher for the 20th edition, the textbook Hydraulics, Fluid Mechanics and Hydraulic Machines
: Energy losses (major and minor), Darcy-Weisbach equation, and flow in series and parallel pipes. fluid mechanics 20th edition rs khurmi solution manual pdf
Darcy-Weisbach equation and loss of energy in pipes. While there is no official standalone "solution manual"