List of top Soil Science Questions on Irrigation Engineering

Given below are two statements: Assertion (A): From the construction point of view, the open well may be classified into three types: well with impervious lining, well with pervious lining and well with no lining. Reason (R): The impervious lining provides most stable and useful type of well for obtaining water supply.

The ratio between the water that reaches a farm or field and that is diverted from the irrigation water source is called:

Graded bunding has been generally used in areas receiving rainfall more than {

Write the steps involved in designing of a sprinkler system in a proper sequence.
A. Quantity of water to be applied
B. Application rate
C. Capacity of the system
D. Selection of sprinklers
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Starting from the water source, the sequence of parts of a drip irrigation system are as follows:
A. Main line
B. Laterals
C. Sub-main
D. Emitter E. Pump and prime mover unit
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Arrange the parts of a tensiometer from the bottom to the top of the instrument.
A. Transparent pipe
B. Connecting tube
C. Ceramic cup
D. Vacuum gauge
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Read the following statements about border irrigation carefully:
A. Width of borders usually varies from 10 to 25 m.
B. For a sandy and sandy loam soil on moderate slopes and small to moderate irrigation streams, border length ranges from 30 to 90 m.
C. For a medium loam soil on moderate slopes and small to moderate irrigation streams, border length ranges from 100 to 180 m.
D. For a clay loam and clay soil on moderate slopes and small to moderate irrigation streams, border length ranges from 120 to 350 m.
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Match LIST I with LIST II
\[ \begin{array}{|l|l|} \hline \textbf{LIST I (Crop)} & \textbf{LIST II (Ideal IW/CPE for irrigation)} \\ \hline A. \ \text{Sorghum} & I. \ 0.8 \\ B. \ \text{Maize} & II. \ 0.9 \\ C. \ \text{Cotton} & III. \ 0.6 \\ D. \ \text{Barley} & IV. \ 0.75 \\ \hline \end{array} \]
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Arrange the following irrigation efficiencies starting from source of water to water needed in the root zone:
A. Reservoir storage efficiency
B. Application efficiency
C. Storage efficiency
D. Conveyance efficiency
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Match LIST I with LIST II
\[ \begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \hline A. \ \text{Soil water not available to plant} & I. \ \text{Rhizosphere} \\ B. \ \text{Soil column occupied by root zone} & II. \ \text{Hygroscopic water} \\ C. \ \text{Vertical entry of water into soil} & III. \ \text{Infiltration} \\ D. \ \text{Tensiometer} & IV. \ \text{Soil moisture measurement} \\ \hline \end{array} \]
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Match LIST I with LIST II
\[ \begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \hline A. \ \text{Infiltration opportunity time} & I. \ \text{Tree crops} \\ B. \ \text{Surface irrigation} & II. \ \text{Command area} \\ C. \ \text{Check basin irrigation} & III. \ \text{Time of ponding} \\ D. \ \text{Cropped area irrigated} & IV. \ \text{Gravity irrigation} \\ \hline \end{array} \]
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