Question

Terminology & Concepts (4 pts each) K known as the The continuous and conservative exchange of water is known a. Conservation of Energy Hydrologic Cycle C. Conservation of Mass d. Hydraulic Cycle What is the name of a plot of total rainfall depth over time a Hyetograph b. IDF Curve Mass Curve d. Hydrograph as curve, what does the slope or derivative represente At any point along the precipitation mass curve, what does the slope or a. Excess Rainfall b. Rainfall intensity © Direct Runott d. Evaporation The direct runoff hydrograph results from: a. Excess Rainfall Rainfall intensity C Groundwater d. Evaporation This equation describes the probability of an exact number of event occurrences in a specific number of attempts, trials, or periods: a Risk b. Reliability c. Normal Distribution d. Binomial Distribution

Answer 1

1) Hydrological cycle means water recycling after runoff meet strams and rivers and then evaprate back and then condense again to form precipitate and eventually rainfall again.. Hence it is contineous exchange... Option B is correct

2) Hydrograph > accumulated rainfall vs time

Hyetograph > Intensity vs time

Mass curve > total rainfall vs time

IDF > Intensity duration frequency curves

Hence C is correct

3) slope of hydrograh = rainfall / time = intensity

Hence B is correct

4) Direct runoff hydrograph doesnt include base flow hence only excess rainfall.

Hence option 1 is correct.

5) Normal distribution is correct ans.. it is always symmetrical about mean

Option C