In flood hydrology, which one of the following is not considered a loss: A. Infi
ID: 1710685 • Letter: I
Question
In flood hydrology, which one of the following is not considered a loss: A. Infiltration B. Precipitation C. Transpiration D. Evaporation E. Depression storage Which of the following climate/catchment characteristics is most likely to decrease the depth of the initial losses in the catchment? A. Decrease in catchment size B. Decrease in catchment slope C. Decreased urbanization D. Increased soil depth E. Strong La Nina The shape (peakiness) of the hydrograph is usually not a function of the following: A. Infiltration B. Surface roughness C. Catchment slope D. Evaporation E. Directly connected impervious area The total volume of the hydrograph is usually not a function of the following: A. Catchment slope B. Canopy interception C. Areal coverage of the storm D. Infiltration E. Directly connected impervious area Which of the following best describes the term "rising limb"? A. It is the increase in the hydrograph that occurs at the start of a rainfall storm B. It is the increase in the hyetograph that occurs at the start of a rainfall storm C. It is the increase in initial losses that occurs at the start of a rainfall storm D. It is an increase in the hydrograph that occurs during a rainfall storm E. It is an increase in the hyetograph that occurs during a rainfall storm Which of the following design parameters would you use to size a reservoir for an extreme flood? A. Peak water level B. Detention time C. Peak flow D. Maximum rainfall intensity E. Maximum storm volumeExplanation / Answer
01. In flood hydrology, precipitation is not considered as loss as precipitation is inflow whereas infiltration, transpiration, evaporation, depression storage are considered as losses.
03. The shape of hydrograph is not a fuction of evaporation. As infiltration, catchment slope, surface roughness, area coverage of basin, impervious strata affects the rate of flow in a flood.
04.The total volume of the hydrograph is usually not a fuction of canopy interception as loss due to canopy interception is insignification so, it isnot considered as a loss.
05.Rising limb: It is the increase in the hydrograph that occurs during the a rainfall storm.