List of top Water Science and Technology Questions

Swelling and shrinkage property is distinct in
A solution having pH of 6.0 is how much more acidic than a similar solution of pH of 7.0?
Precipitation that infiltrates into soils and then moves laterally through the upper soil crust to appear at the surface at some location away from the entry point is known as
For a concrete or paved surface, curve number will tend to be almost equal to
5 gm of sodium chloride is dissolved in 2 liters of water. The salt concentration in water in ppm is
The most commonly used unit for expressing the total quantity of dissolved salts present in a given water sample is
Laboratory analysis of a water sample reported the presence of following constituents \(\text{Na} = 14.8\text{ meq/l}\), \(\text{Ca} = 3.5\text{ meq/l}\), \(\text{Mg} = 4.5\text{ meq/l}\), \(\text{CO}_3 = 0.4\text{ meq/l}\), \(\text{HCO}_3 = 2.6\text{ meq/l}\). The sodium adsorption ratio of water is
Given below are the two statements
Statement I: For Indian conditions, a major irrigation project has a culturable command area of 10000 ha or more
Statement II: Any minor irrigation project for Indian conditions usually has a culturable command area of 2000 ha or less.
In light of the above statements, choose the most appropriate answer from the options given below
The major function of the emergency spillway in a farm pond is to safeguard the earthen embankment/ dam from
Ruggedness number of a watershed is given as
A Third-order stream is formed when
A. A second-order stream joins a second-order stream
B. Two second-order streams join a third-order stream
C. A first-order stream joins a second-order stream
D. A third-order stream joins a third-order stream
Choose the correct answer from the options given below:
For Indian black soils under AMC-I conditions, the best relationships among Initial Abstraction (\(I_a\)) and the Potential Maximum Retention (\(S_m\)) is given by the popular SCS-CN method. Select the best from options given below
The peak runoff rate \(Q_p\) in \(\text{m}^3\text{/s}\) by the Ryves formula is given as \(Q_p = C_r A^b\), where A is the area in \(\text{km}^2\) and \(C_r\) is Ryves constant. The value of exponent b is
In watershed hydrology, the 'Kirpich's Equation' is used to directly compute
Elongation ratio (Re) used to describe the shape of a watershed is given by
Tetrasodium polyphosphate is used in ponds to reduce
Arrange the following irrigation projects in order of construction from the earliest to most recent
A. Sarda canal
B. Damodar Canal
C. Pawara Canal
D. Kharung Canal
E. Ken Canal
Choose the correct answer from the options given below
In case of thermal stratification in ponds, the layer of cooler water is known as
What would be the estimated peak rate of runoff (\(\text{m}^3\text{/s}\)) from a 100 ha catchment having value of runoff coefficient (C) as 0.3 and intensity of rainfall for duration equal to time of concentration as 120 mm/hr?
Key lock theory given by Fisher (1898) explain the mode of action of
How many divisions of enzymes have been suggested by International Union of Biochemistry?
Water resources are often reported in Billion \(\text{M}^3\), \(\text{Km}^3\) and Million ha-m (m ha-m). Which two of these are the same?
Match List I with List II
Choose the correct answer from the options given below:
Theory of proton transport concept given by Levitt in 1974 related to
Crassulacean acid metabolism is present in