Q. The optimum utilisation of irrigation water means _________

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Q. The productivity of crop increases with water reaches a maximum value then, falls down.

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Q. Which factor doesn’t influence the root zone depth?

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Q. For clayey soils, the depth of root-zone is less.

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Q. Which efficiency is also called on-farm efficiency?

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Q. What is water conveyance efficiency?

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Q. The quantity of water beneficially used is the sum of the water used by the crops and the water used for leaching.

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Q. The mean depth of water is 1.5 cm and the mean deviation from the mean is 0.1 cm. Determine its distribution efficiency.

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Q. The presence of excess salts in the soil requires _____________

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Q. Which of the following statement is wrong about consumptive use efficiency?

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Q. The quantity of water that is pumped into a farm distribution system is 2 cumec. 1.6 cumec is delivered to a turn-out, 1km from the well. Compute the conveyance efficiency.

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Q. If the water losses are more, the output and the efficiency is more.

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Q. Determine the distribution efficiency, if the depths of water in the field are 1.1 cm and 1.8 cm.

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Q. Uniformity coefficient is also known as ____________

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Q. The water distribution efficiency is 1.0 if _____________

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Q. What is the correct formula for uniformity coefficient efficiency?

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Q. The value of consumptive use may be different for different crops and different for the same crop at different times and places.

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Q. What is the process of a plant called, through which it leaves water?

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Q. Transpiration process is an integral part of the main process called photosynthesis.

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Q. Which protein in the leaf of the plant utilize carbon dioxide and produce carbohydrates?

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