CE442 Hydraulics Engineering exam with answers

CE442 Hydraulics Engineering exam |\ |\ |\ |\




with answers |\




Radar networks have the most effective coverage of
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precipitation _____. - CORRECT ANSWERS ✔✔x if they are |\ |\ |\ |\ |\ |\ |\ |\ |\



close together |\




x in convective situations
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Radar-derived precipitation has which of the following |\ |\ |\ |\ |\ |\ |\



characteristics that don't apply to rain gauge |\ |\ |\ |\ |\ |\ |\



measurements? - CORRECT ANSWERS ✔✔x It has good |\ |\ |\ |\ |\ |\ |\ |\



space and time resolution. |\ |\ |\




x It is remotely sensed data.
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Because rain gauges are surface based, direct
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measurements, they provide _____. - CORRECT ANSWERS |\ |\ |\ |\ |\ |\ |\



✔✔estimates with different types of errors than radars |\ |\ |\ |\ |\ |\ |\




Dual pol radar techniques will likely result in more
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accurate derived rainfall rates because it will provide
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guidance to help distinguish _____. - CORRECT ANSWERS
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✔✔x ice from liquid
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x hydrometeors from non hydrometeors
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x particle shapes
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,Satellite rainfall estimates are generally higher resolution
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than radar estimates. - CORRECT ANSWERS ✔✔True
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For typical raindrops (about 2-mm diameter) expect a
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_____% loss in gauge catch for every wind speed increase
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of 1 mph. This is _____% for every 1 m/s. - CORRECT
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ANSWERS ✔✔1 | 2.2 |\ |\ |\




A Z-R relationship provides good _____ if it correctly
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represents the _____. - CORRECT ANSWERS ✔✔rainfall |\ |\ |\ |\ |\ |\ |\



rate estimates | drop size distribution
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The best rain gauge measurement will occur with _____. -
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CORRECT ANSWERS ✔✔x gauges near the ground |\ |\ |\ |\ |\ |\




x no wind
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x liquid hydrometeors
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x big raindrops
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The Field Bias Mosaic may be the most appropriate choice
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with which of the following issues? - CORRECT ANSWERS
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✔✔Radar calibration problems |\ |\




The MPE Gage Table compares gauge reports and grid
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values at _____. - CORRECT ANSWERS ✔✔gauge locations
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, Components of the hydrologic cycle include precipitation, |\ |\ |\ |\ |\ |\ |\



condensation, surface runoff, and ________ - CORRECT |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔evaporation |\




The percent of available freshwater is ______ of the total
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water on the Earth. - CORRECT ANSWERS ✔✔less than 1%
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Springs are fed from _______ - CORRECT ANSWERS
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✔✔groundwater


In addition to weather conditions, which of the following
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has a direct influence on plant transpiration? - CORRECT
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ANSWERS ✔✔Plant type, plant canopy density, plant
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coverage


______-type soils have larger pore spaces and allow for
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greater infiltration and percolation than _____ -type soils,
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which have more pore space and can hold more water. -
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CORRECT ANSWERS ✔✔sandy, clay |\ |\ |\




The Multisensor Precipitation Estimator provides analysis
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of gridded precipitation accumulation using information
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from which of the following? - CORRECT ANSWERS ✔✔x
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Radar