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WorksheetsDAY 109 WORKSHEET ITI - Canal Alignment and Design
Total questions: 15
Worksheet time: 8mins
Which canal alignment is considered the best and most economical as it irrigates land on both sides and generally avoids cross-drainage works?
Contour canal
Side slope canal
Ridge canal
Single bank canal
A canal aligned nearly parallel to ground contours and suitable mainly for hilly areas is known as:
Ridge canal
Contour canal
Side slope canal
Watershed canal
Which of the following canals permits high velocity of flow due to negligible scouring?
Alluvial canal
Lined canal
Non-alluvial canal
Unlined canal
The lining material providing about 95% seepage control but having high initial cost is:
Brick lining
Stone pitching
Cement concrete lining
Asphaltic lining
Which canal cross-section is considered the most economical?
Canal in full cutting
Canal in full filling
Canal in partial cutting and partial filling
Canal in deep banking
The canal outlet whose discharge depends on both parent channel and field channel water levels is classified as:
Modular outlet
Semi-modular outlet
Non-modular outlet
Rigid module
For a canal carrying 50 cumec discharge with a drop of 1.8 m, the suitable canal fall is:
Vertical drop fall
Ogee fall
Inglis (Baffle) fall
Trapezoidal notch fall
A side slope canal generally runs roughly parallel to the natural drainage of the country.
True
False
In non-alluvial canals, scouring occurs frequently due to low velocity of flow.
True
False
Assertion (A): Lined canals help in increasing the command area of irrigation. Reason (R): Canal lining reduces seepage losses and permits higher velocity of flow.
Both A and R are true and R is the correct explanation
Both A and R are true but R is not the correct explanation
A is true and R is false
A is false and R is true
A canal which can irrigate fields on both sides is called a (a) canal.
Canals constructed through river-deposited soil are known as (a) canals.
The narrow strip of land left between inner toe of bank and top edge of cutting is called (a) .
The vertical margin between FSL and top of canal bank is known as (a) .
The raised portion provided over the canal bank by the side of inspection road is called (a) .
