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Irrigation Engineering

Irrigation Engineering
For diversion of flood water of rivers, the type of canal constructed, is

Perennial canal
Ridge canal
Inundation canal
Canal

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Irrigation Engineering
The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than

40 cm
10 cm
20 cm
30 cm

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Irrigation Engineering
The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is

less than 1
equal to zero
equal to 1
greater than 1

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Irrigation Engineering
The Lacey's regime velocity is proportional to

R2/3 S1/2
Q3/4 S1/3
R3/4 S1/3
R1/2 S3/4

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Irrigation Engineering
Generally the weir is aligned at right angles to the direction of the main river current because

It is economical
It gives better discharging capacity
All of these
It ensures less length of the weir

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Irrigation Engineering
A hydroelectric scheme operating under a head of 80 m will be classified as

low head scheme
high head scheme
medium head scheme
None of these

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