| 1. | The earth's water circulatory system, is known as ? | |
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water cycle
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hydrologic cycle
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precipitation cycle
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all of these
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Report Question| 2. | Which of the following statement is correct ? | |
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The gravity water is harmful to the crops
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The hygroscopic water remains attached to the soil molecules by chemical bonds
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The capillary water is utilised by the plants
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all of the above
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| 3. | The area in which crop is grown at a particular time or crop season, is called ? | |
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gross commanded area
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culturable commanded area
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culturable uncultivated area
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none of these
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| 4. | The ratio of the head recovered to the head put in an outlet, is called ? | |
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proportionality
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flexibility
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sensitivity
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efficiency
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| 5. | Check flooding method of irrigation is used for ? | |
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closed growing crops
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tracts with flat gradients
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crops which can stand inundation of water for sometime
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crops such as sugarcane, potatoes etc
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| 6. | The duty is largest ? | |
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at the head of the main canal
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at the head of the water course
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on the field
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at all place
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| 7. | Cyclonic precipitation results from ? | |
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lifting of air masses converging into low pressure area
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natural rising of warmer, lighter air in colder and denser surroundings
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lifting of warm moisture-laden air masses due to topographic barriers
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all of the above
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| 8. | The commonly used rain gauge is ? | |
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weighing bucket type
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tipping bucket type
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float type
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none of these
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| 9. | The water content at which plants can no-longer extract sufficient water from the soil for growth, is called ? | |
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field capacity
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saturation capacity
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permanent wilting point
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available moisture
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| 10. | The maximum depth in soil strata, in which the crop spreads its root system, and derives water om the soil, is called ? | |
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kor depth
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root zone depth
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delta
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overlap allowance
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