5.1 GROUND WATER
AQUIFER – WATER TABLE – EXPLORING THE AVAILABILITY OF GROUND
WATER – TAPING OF GROUND WATER – OPEN WELL – BORE WELL –
TYPES OF WELL CONSTRUCTION – YEILD OF A OPEN WELL – EQUATION
– SPECIFIC CAPACITY OR SPECIFIC YIELD OF A WELL – TEST FOR
YIELD OF WELL – METHODS OF RAIN WATER HARVESTING – SANITARY
PROTECTIONS – NO PROBLEMS.
5.2 FLOW THROUGH OPEN CHANNELS
DEFINITION- CLASSIFICATION – RECTANGULAR AND TRAPEZOIDAL
CHANNELS – DISCHARGE – CHEZY’S FORMULA, BAZIN’S FORMULA AND
MANNING’S FORMULA – HYDRAULIC MEAN DEPTH – PROBLEMS –
CONDITIONS OF MAXIMUM DISCHARGE AND MAXIMUM VELOCITY –
PROBLEMS – FLOW IN A VENTURIFLUME – UNIFORM FLOW IN
CHANNELS – FLOW THROUGH A SLUICE GATE – TYPES OF CHANNELS –
TYPICAL CROSS SECTIONS OF IRRIGATION CANALS – METHODS OF
MEASUREMENTS OF VELOCITIES – CHANNEL LOSES – LINING OF
CANALS – ADVANTAGES OF LINING OF CANALS – TYPES OF LINING –
CEMENT CONCRETE LINING WITH SKETCHES – SOIL CEMENT LINING
WITH SKETCHES – LDPE LINING.