# Civil Engineering - Water Resources Engineering

### Exercise :: Water Resources Engineering - Section 1

21.

The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is

 A. greater for heavy rain B. greater for lighter rain C. greater for large drops D. lesser for small rain drops.

Explanation:

No answer description available for this question. Let us discuss.

22.

If a gauge is installed perpendicular to the slope, its measurement is reduced by multiplying

 A. sine of the angle of inclination with vertical B. cosine of the angle of inclination with vertical C. tangent of the angle of inclination with vertical D. calibration coefficient of the gauge.

Explanation:

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23.

For determination of average annual precipitation in a catchment basin, the best method is

 A. Arithmetical method B. Thiessen's mean method C. Isohyetal method D. None of these.

Explanation:

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24.

While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in

 A. Arithmetical method B. Thiessen's mean method C. Isohyetal method D. both (a) and (b) E. both (b) and (c).

Explanation:

No answer description available for this question. Let us discuss.

25.

The critical depth in a channel can be produced

 A. by raising the bottom of the channel B. by lowering the bottom of the channel C. by decreasing the width of the channel D. by increasing the width of the channel E. both (a) and (c) of above.