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Irrigation Engineering

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

gross speed
design speed
rated speed
operating speed

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Irrigation Engineering
Study the following statements.
i) Levees are constructed parallel to river flow,
ii) Spurs are constructed parallel to river flow,
iii) Levees are constructed transverse to river flow,
iv) Spurs are constructed transverse to river flow.
The correct answer is

(ii) and (iii)
(i) and (iv)
(i) and (ii)
(iii) and (iv)

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Irrigation Engineering
Coefficient of discharge of an ogee spillway

depends on depth of approach and upstream slope
depends on downstream apron interference and downstream submergence
both (A) and (B)
remains constant

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

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

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Irrigation Engineering
If V₀ is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to

V₀1/2
V₀3/2
V₀7/2
V₀5/2

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Irrigation Engineering
Horizontal acceleration due to earthquake results in

both (A) and (B)
None of these
hydrodynamic pressure
inertia force into the body of the dam

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