Welcome to your Irrigation Engineering Mock test - 4
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1) The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to
2) For standing crops in undulating sandy fields, the best method of irrigation, is
3) Attracting groynes are built
4) Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
5) Meandering of a river generally occurs, in
6) When a canal is carried over a natural drainage, the structure provided, is known as
7) For smooth entry of water in a canal, the angle between head regulator and water is generally kept
8) Lacy's regime condition is obtained if
9) The optimum depth of kor watering for a rice crop, is
10) Retrogression of the bed level of a river downstream a weir, occurs due to
11) In north Indian Plains, optimum depth of kor watering for wheat, is
12) The uplift pressure on the roof of an inverted syphon, is maximum when
13) The width of a meander belt is the transverse distance between
14) The intensity of irrigation means
15) The top soil of a water logged field becomes more alkaline and infertile if its pH value is
16) In rigid module, the discharge
17) If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
18) The sensitivity of a rigid module, is
19) If average particle size of the silt in millimetres is m, the Lacey's silt factor f is proportional to
20) In a concrete canal the approximate permissible velocity of water should not exceed
21) The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
22) For cereal crops the most commonly adopted method of irrigation, is
23) A current meter measures the velocity of flow, if it is held
24) The saturation gradient in ordinary loam soil, is generally
25) A hydraulic jump is generally formed when a stream moving with