Pick up the correct statement from the following:
Water-shed line is abondened for aligning an irrigation canal if
Irrigation canals are generally aligned along
The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as
Groynes are generally built
The intensity of irrigation means
The ratio of the head recovered to the head put in, is known as
A water-logged land is found suitable for cultivation due to
When a canal is carried over a natural drainage, the structure provided, is known as
While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3
For the conditions enumerated to provide a crossing at C1 You will probably provide
A river training work is generally required when the river is
Pick up the incorrect statement from the following
The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of
Lacey's equation for calculating flood discharge in rivers, is
The uplift pressure on the roof of an inverted syphon, is maximum when
Pick up the correct statement from the following
The top of the capillary zone
The saturation line is the line up to which banks get saturated after the canal runs for some time. The saturation gradient in ordinary loam soil, is generally
The level of the fioor of a syphon aqueduct can be obtained
When a canal and a drainage approach each other at the same level, the structure so provided, is
If the straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the perimeter of the canal is
When a canal is carried over a natural drainage, the structure provided, is known as
For a given discharge in a channel, Blench curves give the relationship between the loss of head (HL) and
The most suitable section of a lined canal, is
Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept
A fall which maintains its depth, is
For smooth entry of water in a canal, the angle between head regulator and water is generally kept
Pick up the correct statement from the following: