The deficiency in rain catch due to vertical acceleration of air forced upward o

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Question
The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is
Options
A. greater for heavy rain
B. greater for lighter rain
C. greater for large drops
D. lesser for small rain drops.

Correct Answer

greater for lighter rain

Water Resources Engineering problems

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1. Pick up the correct statement from the following :
Options
A. Rain which is intercepted by buildings, vegetations and other objects, is generally known as rainfall interception
B. The difference between the total rainfall and intercepted rainfall, is generally called ground rainfall
C. When rainfall exceeds the interception rainfall, water reaches the ground and infiltration starts
D. The maximum rate of absorbing water by the soil in any given condition, is known as infiltration capacity
E. All the above.

2. While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in
Options
A. Arithmetical method
B. Thiessen's mean method
C. Isohyetal method
D. both (a) and (b)
E. both (b) and (c).

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

6. The surface Run-off is the quantity of water
Options
A. absorbed by soil
B. intercepted by buildings and vegetative cover
C. required to fill surface depressions
D. that reaches the stream channels
E. that gets evaporated.

8. Pick up the incorrect statement from the following :
Options
A. The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability
B. The rate of flow of water through a vertical strip of the acquifer of unit width and full depth under a unit hydraulic gradient, is called coefficient of transmissibility
C. The flow of water through acquifers, is governed by the Darcy's law
D. The term 'transmissibility' was introduced by Meinzer
E. The ratio of coefficient of transmissibility and coefficient of permeability, is equal to the depth of acquifer through which water flows.

9. Pick up the correct statement from the following :
Options
A. The portion of pellicular water which remains unutilised, is called hygroscopic water
B. The moisture content at which permanent wilting of plants takes place, is called the wilting point
C. The path of the water required to bring the soil moisture content of a soil up to its field capacity is called soil moisture deficiency
D. The moisture deficiency will be different at different points
E. All the above.

10. A hydraulic jump in a control meter will be formed above the control, if its original
Options
A. depth is more than critical depth
B. depth is less than the critical depth
C. depth is equal to critical depth
D. none of these.

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