Irrigation Engineering

41) The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in

Discuss in Comment

super passage and canal syphon

42) The aqueduct or superpassage type of works are generally used when

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high flood drainage discharge is large and continues for a long time

43) If the R.L’s of canal bed level and high flood level of drainage are 212.0 m and 210.0 m respectively, then cross drainage work will be

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aqueduct

44) A land is known as waterlogged

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capillary fringe reaches the root zone of plants

45) A unit hydrograph has one unit of

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rainfall excess

46) Partial duration series is mostly used for

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rainfall analysis

47) Discharge per unit drawdown at a well is called

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specific capacity

48) Due to decrease in pressure, the water level in a well penetrating a confined aquifer will

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increase

49) Permanent wilting point is

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a soil characteristic

50) If B is the base period in days, D is the duty in hectares/cumec and A is the delta of the crop in m, the relation between them is given by

Discuss in Comment

delta = 8.64 B/D

Subject Notes

Objective Box

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