Irrigation, Waterways , Hydrology Section 3
-
1) Question.
The leaching requirement of a soil is 10%. If the consumptive use requirement of the crop is 90 mm, then the depth of water required to be applied to the field is
Answer. -
2) Question.
Conjuctive use of water in a basin means
Answer. -
3) Question.
Permanent wilting point is
Answer. -
4) Question.
The DAD (Depth Area Duration) analysis for a catchment would indicate that
Answer. -
5) Question.
If the same catchment area is situated in three zones X, Y, Z where X, Y and Z represent flat regions of tropical zone, mountaneous region of tropical zone, mountaneous region of tropical zone and arid zone respectively, then the relation between the desirable number of raingauge stations in these three zones Nx, Ny and Nz respectively is
Answer. -
6) Question.
The 6-hour unit hydrograph of a catchment of area 180 km^2 is triangular in shape. If the peak ordinate of this hydrograph is 10 m^3/sec, then the time base is
Answer. -
7) Question.
What is the probability of a flood equal to or greater than 25 years flood occurring twice in the next three years?
Answer. -
8) Question.
For a storm of given duration, if the intensity of storm corresponding to a return period of T is I, then the intensity of storm for same duration but corresponding to a return period of T1 (T1 > T) will be
Answer. -
9) Question.
According to Indian standards, the number of raingauge stations for an area of 5200 km^2 in plains should be
Answer. -
10) Question.
Due to decrease in presssure, the water level in a well penetrating a confined aquifer will
Answer. -
11) Question.
Permeability of a soil sample at a temperature of 20°C is 0.5 mm/sec. If the temperature is decreased to 15°C, the permeability of the same soil sample is
Answer. -
12) Question.
Discharge per unit drawdown at a well os called
Answer. -
13) Question.
The porosity of a sand sample is 50%. The specific yield of an aquifer containing thus sand will be
Answer. -
14) Question.
The dimensions of storage coefficient is
Answer. -
15) Question.
In linear reservoir, storage varies linearly with
Answer. -
16) Question.
Which of the following equations are used in hydrological flood routing methods?
i) continuity method
ii) equation of motion
iii) energy equation
The correct answer is
Answer. -
17) Question.
Muskingham method of flood routing is
Answer. -
18) Question.
In case of channel routing, the storage is a function of
Answer. -
19) Question.
Which of the following are Saint Venant's equations for insteady open-channel flow?
i) continuity equation
ii) momentum equation
iii) energy equation
Answer. -
20) Question.
If storage, inflow rate and outflow rate is denoted by S, I and Q respectively, then the value of S in Miskingham method of flood routing is given by the expression
Answer.
