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06000CE309122001

What is the necessity of irrigation? What are the ill effects of irrigation?
What are the factors affecting duty of water?
How will you estimate the discharge in a stream by area velocity method?
What is the application of stage discharge curve?
Suggest the river training works with sketches for the following situation .1) to protect a
monument near to the river 2) to construct a bridge over a wide river.
PART ட்‌

Answer any two full questions, each carries 20 marks.
What are the different storage zones of reservoir?
What are the different methods to control sedimentation in reservoirs?
Explain trap efficiency and flow duration curve.
State Darcy’s law. What is the significance of the law in groundwater hydrology?
Define : Porosity, Specific yield, specific retention, coefficient of permeability,
transmissibility
What are the different methods to estimate the yield of an open well?
What is a mass curve? How it is used to find out the capacity of reservoir?
Design a tube well for the following data (a) yield required= 0.08 cumec (b) thickness of
confined aquifer =30m (c)radius of influence =300m (d) permeability coefficient =60m/ day
(e) drawdown=5m

Distinguish between storage and diversion systems.

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