Hydrology Questions Set 13:
Wind speed is measured with
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The probability of a 10-year flood occurring at least once in the next 5 years is
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Isopleths are lines on a map through points having equal depth of
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Base flow refers to
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If the existing number of rain gauges is 5 and the optimum number of rain gauges is 15, what is the number of additional rain gauges required?
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Which type of precipitation is associated with high pressure regions?
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The observed annual runoff from a basin of area 500 km2 is 150 Mm3 and the corresponding annual rainfall over the basin during the same year is 750 mm. What is the runoff coefficient?
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If the coefficient of variation of rainfall measurements at 4 rain-gauge stations is 30% and the permissible error in the estimation of mean rainfall is 10%, then the additional number of rain-gauge stations required in the catchment is
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A watershed has 4 main rain gauge stations, A, B, C, and D. During a storm, rain gauge station A becomes defective, while B, C, and D recorded the rainfall as 45 mm, 54 mm, and 40 mm respectively. Estimate the missing rainfall data using the arithmetic mean method.
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Which of the following equations correctly describes the relationship between specific yield, specific retention, and porosity?
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