1A spillway is provided in a dam to:AStore waterBSafely release excess flood waterCAllow fish passage onlyDGenerate powerView AnswerDiscussWorkspaceReportSaveEasy
2Delta in irrigation is:AA type of canalBThe total depth of water required by a crop during its base periodCSoil moistureDThe river mouthView AnswerDiscussWorkspaceReportSaveEasy
3If the duty of water is 1728 hectares per cumec and the base period is 120 days, delta is about:A120 cmB30 cmC60 cmD8.64 cmView AnswerDiscussWorkspaceReportSaveMedium
4A barrage differs from a weir in that it:AHas no gatesBIs only for drainageCHas gates to control the pond levelDIs always tallerView AnswerDiscussWorkspaceReportSaveEasy
5Gravity dams resist water pressure mainly by:ACablesBSoil friction onlyCArch actionDTheir own weightView AnswerDiscussWorkspaceReportSaveEasy