Quiz 3-4

All NRCS distributions are:

dimensionless

Linear curves and dimensionless

None of the above

S-shaped curves and semi dimensionless

Huff's distributions are :

Dimensionless

semi-dimensionless

None of the answers

S-shaped curves and semi dimensionless

Cumulative rainfall information in the three consecutive intervals : 3 inches, 3 inches and 6.5 inches. The incremental rainfalls rainfalls are :

None of the answers

3,3, 6.5 inches respectively

3. 3.5, 0 inches respectively

3, 0, 3.5 inches respectively

All NRCS distributions are

for only 12 hours

semi-dimensionless

dimensionless

none of the answers

What is the best method for estimation of average precipitation on a watershed, when no information about climate or meteorology of the region or rainfall contours is available ? Rain gage data is available.

Thiessen polygon

Centroidal distance

isoheytal method

none of the answers

In the power relationship Z = a Rb , for estimation of rainfall using weather radar, the R value is

Rainfall intensity

rainfall depth

Reflectivity

None of the answers

For a given duration (in an IDF curve), the intensity

increases with increase in return period

Decreases with increase in return period

remains same for all the return periods

None of the answers

Which method use information about average annual precipitation at sites to estimate missing data ?

Normal ratio method

inverse distance method

arithmetic average method

None of the answers

In case of IDF curve, For a given return period, the intensity

Decreases with increase in the duration

Increases with increase in the duration

Remains same with increase in the duration

None of the answers

Normal ratio method is used for estimation of:

Missing precipitation data

Average precipitation data

none of the answers

Quiz 3-4

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