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Irrigation Engineering

Irrigation Engineering
Tortuosity of a meandering river is always

equal to 1
less than 1
greater than 1
less than or equal to 1

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Irrigation Engineering
Unit of runoff in M.K.S. system is

square metre
cubic metre
metre/sec
cubic metre/sec

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Irrigation Engineering
A unit hydro graph has one unit of

rainfall excess
discharge
time base of direct runoff
rainfall duration

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Irrigation Engineering
To determine the discharge at a section in a stream from its rating curve, the required data are
i) slope of water surface at the section
ii) stage at the section
iii) current meter readings at the section
The correct answer is

(i) and (ii)
only (ii)
only (iii)
(ii) and (iii)

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Irrigation Engineering
The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by

None of these
period of storm
direct runoff volume
total rainfall

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Irrigation Engineering
Lacey's equation for calculating flood discharge in rivers, is

V = 10.8 R1/3 S2/3
V = 10.8 R2/3 S1/2
V = 10.8 R1/2 S1/2
V = 10.8 R2/3 S1/3

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