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CE442 Hydraulics Engineering Questions And Answers
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CE442 Hydraulics Engineering Questions And Answers
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Solution 2024/2025Pepper
CE442 Hydraulics Engineering Questions And
Answers
Radar networks have the most effective coverage of precipitation _____. ANS✔✔ x if they are close together
x in convective situations
Radar-derived precipitation has which of the following characteristics that don't apply to rain gauge measurements?
ANS✔✔ x It has good space and time resolution.
x It is remotely sensed data.
Because rain gauges are surface based, direct measurements, they provide _____. ANS✔✔ estimates with different
types of errors than radars
Dual pol radar techniques will likely result in more accurate derived rainfall rates because it will provide guidance to help
distinguish _____. ANS✔✔ x ice from liquid
x hydrometeors from non hydrometeors
x particle shapes
Satellite rainfall estimates are generally higher resolution than radar estimates. ANS✔✔ True
For typical raindrops (about 2-mm diameter) expect a _____% loss in gauge catch for every wind speed increase of 1
mph. This is _____% for every 1 m/s. ANS✔✔ 1 | 2.2
A Z-R relationship provides good _____ if it correctly represents the _____. ANS✔✔ rainfall rate estimates | drop size
distribution
The best rain gauge measurement will occur with _____. ANS✔✔ x gauges near the ground
x no wind
, Solution 2024/2025
Pepper
x liquid hydrometeors
x big raindrops
The Field Bias Mosaic may be the most appropriate choice with which of the following issues? ANS✔✔ Radar calibration
problems
The MPE Gage Table compares gauge reports and grid values at _____. ANS✔✔ gauge locations
Components of the hydrologic cycle include precipitation, condensation, surface runoff, and ________ ANS✔✔
evaporation
The percent of available freshwater is ______ of the total water on the Earth. ANS✔✔ less than 1%
Springs are fed from _______ ANS✔✔ groundwater
In addition to weather conditions, which of the following has a direct influence on plant transpiration? ANS✔✔ Plant
type, plant canopy density, plant coverage
______-type soils have larger pore spaces and allow for greater infiltration and percolation than _____ -type soils, which
have more pore space and can hold more water. ANS✔✔ sandy, clay
The Multisensor Precipitation Estimator provides analysis of gridded precipitation accumulation using information from
which of the following? ANS✔✔ x Radar
x Rain gauges
x Forecast models
Which of the following MPE functions is very important for assuring appropriate adjustments to radar QPE fields?
ANS✔✔ Evaluating and editing gauge reports
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