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Irrigation Engineering

Irrigation Engineering
The net speed under which the turbine reaches its peak efficiency is called

gross speed
rated speed
design speed
operating speed

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Irrigation Engineering
When a canal is carried over a natural drainage, the structure provided, is known as

Syphon-aqueduct
Super passage
Syphon
Aqueduct

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Irrigation Engineering
The consumptive use of water for a crop

May be supplied partly by precipitation and partly by irrigation
All of these
Is measured as the volume of water per unit area
Is measured as depth of water on irrigated area

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Irrigation Engineering
The scour depth D of a river during flood, may be calculated from the Lacey's equation

D = 0.47 (Q/f)1/2
D = 0.47 (Q/f)1/3
D = 0.47 (Q/f)2/3
D = 0.47 (Q/f)

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Irrigation Engineering
A fall in a canal bed is generally provided, if

Ground slope exceeds the designed bed slope
None of these
Designed bed slope exceeds the ground slope
Ground slope is practically the same as the designed bed slope

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Irrigation Engineering
Infiltration is the

None of these
both (A) and (B)
absorption of water by soil surface
movement of water through the soil

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