1Minor losses in pipes occur due to:AEvaporationBBends, valves, enlargements and contractionsCGravityDPipe friction along lengthView AnswerDiscussWorkspaceReportSaveEasy
2The most economical rectangular channel section has width equal to:AHalf the depthBThe depthCFour times the depthDTwice the depthView AnswerDiscussWorkspaceReportSaveEasy
3A hydraulic jump occurs when flow changes from:ALaminar to turbulentBSubcritical to supercriticalCSupercritical to subcriticalDSteady to unsteadyView AnswerDiscussWorkspaceReportSaveEasy
4Water flows in a rectangular channel 4 m wide and 1 m deep at 2 m/s. The discharge is:A2 m³/sB4 m³/sC8 m³/sD6 m³/sView AnswerDiscussWorkspaceReportSaveMedium
5Manning's formula is used for flow in:APipes under pressure onlyBPumpsCSoilsDOpen channelsView AnswerDiscussWorkspaceReportSaveEasy