Burge formula 
cumecs is based upon
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rainfall and drainage area -
run off and drainage area -
drainage area and its shape -
drainage area.
Pick up the correct statement from the following :
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Perched aquifer is found in unconfined aquifer -
The top surface of the water held in the perched aquifer, is known as perched water table -
Perched aquifer is formed in unfined accquifer if an impervious layer exists -
All the above.
The rate of evaporation from reservoirs may be determined by
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pan-measurement method -
empirical formulae -
storage equation method -
energy budget method -
all the above.
The radius of influence is
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radius of the main well -
distance from the wall of main well to the point of zero draw down -
distance from the centre of main well to the point of zero draw down -
none of these.
A hydraulic jump in a control meter will be formed above the control, if its original
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depth is more than critical depth -
depth is less than the critical depth -
depth is equal to critical depth -
none of these.
Consumptive use of a crop during growth, is the amount of
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interception -
transpiration -
evaporation -
all the above.
Water contains
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one hydrogen atom and one oxygen atom -
two hydrogen atoms and one oxygen atom -
one hydrogen atom and two oxygen atoms -
three hydrogen atoms and two oxygen atoms -
two hydrogen atoms and three oxygen atoms.
In nature water may occur as
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liquid -
solid -
vapours -
all the above.
Prof. Running suggested the method for extending the discharge curve. It is known as
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Logarithmic method -
y method -
General method -
None of these.
Pick up the correct statement from the following :
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Rain which is intercepted by buildings, vegetations and other objects, is generally known as rainfall interception -
The difference between the total rainfall and intercepted rainfall, is generally called ground rainfall -
When rainfall exceeds the interception rainfall, water reaches the ground and infiltration starts -
The maximum rate of absorbing water by the soil in any given condition, is known as infiltration capacity -
All the above.
Precipitation caused by lifting of an air mass due to the pressure difference, is called
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cyclonic precipitation -
convective precipitation -
orographic precipitation -
none of these.
Pick up the correct statement from the following :
-
The portion of pellicular water which remains unutilised, is called hygroscopic water -
The moisture content at which permanent wilting of plants takes place, is called the wilting point -
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 -
The moisture deficiency will be different at different points -
All the above.
For calculating the evaporation rate over a reservoir surface E = 0.(1.- 0.B) (0.- 0.V) (pe - pa), the equation is given by
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Roohwer's, formula in M.K.S. -
Roohwer's formula in F.P.S. -
Dalton's formula in F.P.S. -
Dalton's formula in M.K.S.
Unit Hydrograph theory was enunciated by
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Merril Bernard -
W.W. Horner -
Le-Roy K. Shermen -
Robert E. Horten.
Hydrology is the science which deals with
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rain water -
river water -
sea water -
surface and underground water -
flood water.
If y is the depth of water at any section, then the mean velocity is
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0.1 y -
0.2 y -
0.3 y -
0.5 y -
0.6 y.
The surface Run-off is the quantity of water
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absorbed by soil -
intercepted by buildings and vegetative cover -
required to fill surface depressions -
that reaches the stream channels -
that gets evaporated.
The standard height of a standard rain gauge, is
-
10 cm -
20 cm -
30 cm -
50 cm.
The main factor which affects the infiltration capacity, is
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thickness of saturated layer -
depth of surface detention -
soil moisture -
all the above.
For the estimate of high floods in fan-shaped catchment, the formula used is
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Dicken's formula -
Ryve's formula -
Inglis formula -
none of these.
The theory of infiltration capacity was given by
-
Merrill Bernard -
W.W. Horner -
Le-Roy K. Shermen -
Robert E. Horten.
The surface run off is due to
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initial rain -
residual rain -
rain in the net supply interval -
all the above.
The run off is affected by
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type of precipitation -
rain intensity and duration of rainfall -
rain distribution and soil moisture deficiency -
direction of prevailing storm -
all the above.
Pick up the correct equation from the following :
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Run off = Surface run off + Ground water flow -
Run off = Surface run off - Ground water flow -
Run off = Surface run off / Ground water flow -
Run off = Surface run off x Ground water flow.
In India, rain fall is generally recorded at
-
8 A.M. -
12 Noon -
4 P.M. -
8 P.M.
According to Robert E. Horton, the equation of infiltration capacity curve, is (where letters carry their usual meanings)
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f = fc (fo - fc) ekt -
f = ft - (fo - fc) e-kt -
f = ft + (fo - fc) e-kt -
f = f + (fo - fc) ekt
Hydrology helps in
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predicting maximum flows -
deciding the minimum reservoir capacity -
forecasting the availability of quantity of water at reservoir site -
predicting the effects on the river water level on completion of dams -
all the above.
Hydrograph is a graphical representation of
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surface run off -
ground water flow -
rain fall -
discharge flowing in the river -
none of these.
The initial basin recharge is equal to
-
interception -
depression storage -
rain absorbed by the moisture deficiency -
all the above.
Infiltration capacity of soil depends upon
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number of voids present in the soil -
shape and size of soil particles -
arrangement of soil particles -
compaction of the soil particles -
all the above.