List of top Water Engineering and Management Questions

Choose the correct sequence of soil moisture constants for a soil after a heavy rain if no further water is added.

In design of underground pipeline, if \(v\) is velocity of flow, \(g\) is acceleration due to gravity and friction head loss at pipe entry is \(h_e\), which is the correct relationship

Following soil properties are considered correct
• [A.] The coarser particle of soil are derived from physical weathering of rocks
• [B.] Loamy soils are not considered favorable for plant growth
• [C.] Clay soil contains \(40\text{--}60%\) of clay and \(40\text{--}45%\) sand and silt
• [D.] Sandy soils have low water holding capacity
• [E.] Silty clay means silt amount is more and clay proportion is less Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The infiltration rate decreases during heavy rainfall and tends to approach a constant value. Reason R: The matric potential of soil water decreases with accumulated infiltration. In the light of the above statements, choose the most appropriate answer from the options given below

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Severe erosion will occur in gully if structure to control velocity of water along the slope is not provided. Reason R: Drop structures and chute spillways are used to prevent erosion in irrigation channels. In the light of the above statements, choose the most appropriate answer from the options given below

The sequence of ploughing by M.B. Plough includes A. Lifting the furrow slice B. Cutting the furrow slice C. Pulverizing the furrow slice D. Inverting the furrow slice Choose the correct answer from the options given below:

Parshall Flume includes the following A. Converging section is downstream with upward slope B. Diverging section is at upstream with downward slope C. The throat section is at middle with downward slope D. The converging section is at upstream with level slope E. The diverging section is at downstream with upward slope Choose the correct answer from the options given below:

The carrying capacity of a valid channel section of specifications: bottom width \(60\) m, depth of flow \(30\) cm, bed slope \(1\) per kilometer and Manning's roughness coefficient \(0.04\) will be

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In a centrifugal pump, the function of impeller is to impart high velocity of water so that velocity head is increased. Reason R: The function of casing is to reduce velocity of water so that velocity head is reduced and converted into pressure head. In the light of the above statements, choose the most appropriate answer from the options given below

In ground water hydrology A. Dupuit equation are used for unconfined and confined aquifers B. Theim equation is used for unsteady state conditions C. Theim equation is used for steady state conditions D. Theim equation is used for steady state condition Choose the correct answer from the options given below:

The impeller Diameter (\(D\)) Speed (\(N\)), Capacity (\(Q\)), Head (\(H\)) and Brake Horse Power (\(P\)) of centrifugal pump have following characteristics A. \(Q\) varies directly with \(D\) B. \(P\) varies directly with square of \(N\) C. \(H\) varies directly with cube of \(D\) D. \(H\) varies directly with square of \(D\) E. \(P\) varies directly with cube of \(n\) Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In pumps, suction lift exists when the source of water supply is below the centre line of pump. Reason R: Total static suction lift is the sum of static suction lift minus friction losses, entrance losses in the suction piping. In the light of the above statements, choose the most appropriate answer from the options given below

Which of the following is not a property of a semi confined aquifer?

In soil erosion control measure, the following statement are true: A. Sloping outward terraces are used in low rainfall region. B. Wind strip cropping is done in parallel to direction of wind. C. Graded bunds are used in high rainfall areas. D. Shelter break are used to prevent rainfall erosion. E. Grassed waterway acts as outlet for graded terraces. Choose the correct answer from the options given below:

The plan of an area has shrink side that line originally \(20\) cm now measures \(19.5\) cm. If the original scale of plan is \(1\) cm \(= 10\) m, determine (i) correct distance to a measured distance of \(198\) m (ii) correct area corresponding to measured area of \(20000\ \text{m}^2\) Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Wind is a climatic factor affecting soil erosion. Reason R: Wind characteristics influence raindrop velocities and angle of impact and effect soil erosion. In the light of the above statements, choose the most appropriate answer from the options given below
• Both A and R are correct and R is the correct explanation of A
• Both A and R are correct but R is NOT the correct explanation of A
• A is correct but R is not correct
• A is not correct but R is correct

The process of Gully development followed by Gully control involves A. Growing of vegetation in Gully B. Stabilization of Gully C. Channel erosion and deepening of Gully bed D. Enlargement of Gully head towards upstream E. Construction of temporary and permanent Gully control structures Choose the correct answer from the options given below:

In a watershed of \(3000\) ha in flat topography, drainage coefficient was found to be \(5\) cm. If the drainage coefficient can be reduced to half by altering cropping pattern, what will be the discharge through drainage channel if both the condition are considered?

Consider the following units for measurement of salinity in irrigation water A. \(1\) mhos/m \(=\) \(1\) Siemens/m (s/m) B. \(1\) millimhos/cm \(=\) \(1\) deciSiemens/m (dS/m) C. \(1\) EC \(\times 10^{-3} = 1\) millimhos \(\per\) cm D. \(1\) EC \(\times 10^{-6} = 1\) micromhos \(\per\) cm E. meq/l \(= 10 \times\) EC \(\times 10^3\) Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The distribution efficiency is an important parameter of uniform water application in surface irrigation method design. Reason R: The concept of uniformity coefficient used in sprinkler irrigation system design is similar to distribution efficiency in surface irrigation system. In the light of the above statements, choose the most appropriate answer from the options given below
• Both A and R are correct and R is the correct explanation of A
• Both A and R are correct but R is NOT the correct explanation of A
• A is correct but R is not correct
• A is not correct but R is correct